JP2018061190A - On-vehicle system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle system capable of exchanging information properly with a server outside a vehicle.SOLUTION: An on-vehicle system 1 includes a communication module 2 mounted on a vehicle V and performing transmission and reception of information between a server outside the vehicle V, a primary storage section 5 for aggregating and storing information transmitted and received between multiple object apparatus 4 mounted on the vehicle V and the server 101 via the communication module 2, and a communication control section 62 for controlling transmission and reception of information between the server 101, the primary storage section 5, and the multiple object apparatus 4. As a result, the on-vehicle system 1 can exchange information properly with the server 101 outside the vehicle V.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an in-vehicle system.

  As a conventional in-vehicle system mounted on a vehicle, for example, in Patent Documents 1 and 2, each device mounted on a vehicle and a server in a cloud environment outside the vehicle transmit and receive information via a communication module. A system is disclosed.

JP 2013-187555 A Japanese Patent Laying-Open No. 2015-074368

  Incidentally, the systems described in Patent Documents 1 and 2 described above have room for further improvement in terms of more appropriate information exchange.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an in-vehicle system capable of appropriately exchanging information with a server outside the vehicle.

  To achieve the above object, an in-vehicle system according to the present invention includes a communication module that is mounted on a vehicle and transmits / receives information to / from a server outside the vehicle, and a plurality of target devices mounted on the vehicle. A primary storage unit that aggregates and stores information transmitted and received with the server via the communication module, and controls transmission and reception of information between the server, the primary storage unit, and the plurality of target devices. And a communication control unit.

  In the in-vehicle system, the communication module, the primary storage unit, and a power supply control unit that controls supply of power from a power supply to the plurality of target devices, the power supply control unit, the primary storage unit When transmitting / receiving information to / from the server via the communication module, the power is supplied from the power source to the primary storage unit and the communication module, and to at least one of the plurality of target devices. The supply of power can be stopped.

  In the in-vehicle system, the communication control unit aggregates and stores in the primary storage unit upload information that is information to be uploaded to the server from the plurality of target devices before a preset reservation time point, The upload information stored in the primary storage unit at the time of reservation may be transmitted to the server via the communication module.

  In the in-vehicle system, the communication control unit receives download information, which is information to be downloaded from the server to the plurality of target devices at a preset reservation time, from the server via the communication module. The download information stored in the primary storage unit after the reservation time point may be transmitted to the plurality of target devices.

  In the in-vehicle system, the primary storage unit may include a storage unit that stores information, and a primary processing unit that performs a preset primary process on the information stored in the storage unit. .

  Moreover, in the said vehicle-mounted system, the said temporary memory part and the said communication module shall be provided in the portable terminal which can be carried inside and outside the said vehicle.

  In the in-vehicle system according to the present invention, the communication control unit aggregates and stores in the primary storage unit information to be transmitted and received between the plurality of target devices mounted on the vehicle and the server, and then stores the server. Since the information can be exchanged between the primary storage unit and the plurality of target devices, there is an effect that the information can be exchanged properly with a server outside the vehicle.

FIG. 1 is a block diagram illustrating a schematic configuration of an in-vehicle system according to the embodiment. FIG. 2 is a flowchart illustrating an upload process executed by the in-vehicle system according to the embodiment. FIG. 3 is a flowchart for explaining a download process executed by the in-vehicle system according to the embodiment. FIG. 4 is a block diagram illustrating a schematic configuration of an in-vehicle system according to a modification.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

[Embodiment]
The in-vehicle system 1 of the present embodiment shown in FIG. 1 is applied to a vehicle V, and is primarily stored when information is exchanged between a plurality of target devices 4 mounted on the vehicle V and a server 101 outside the vehicle V. This is an in-vehicle communication system capable of realizing the exchange of appropriate information by interposing the unit 5. Hereinafter, the configuration of the in-vehicle system 1 will be described in detail with reference to FIG. In the in-vehicle system 1 illustrated in FIG. 1, the solid line connecting each component represents the flow of power, control signal, etc. for operating each component, and the dotted line connecting each component is the target device 4. A flow of information (data) exchanged with the server 101 is shown. In addition, the connection method between each component for power supply, control signal, and transmission / reception of various information, unless otherwise specified, wired connection via a cable or other wiring material, wireless communication, contactless power supply Any of wireless connection such as the above may be used.

  Specifically, the in-vehicle system 1 is mounted on a vehicle V and includes a DCM 2 as a communication module, a router / G / W unit 3, a plurality of target devices 4, a primary storage unit 5, and a management device 6. Prepare. The in-vehicle system 1 according to the present embodiment is realized by mounting the components shown in FIG. The vehicle V to which the in-vehicle system 1 is applied is any vehicle that uses a motor or an engine as a drive source, such as an electric vehicle (EV), a hybrid vehicle (HEV), a plug-in hybrid vehicle (PHEV), a gasoline vehicle, and a diesel vehicle. There may be. Further, the operation of the vehicle V may be any of manual driving, semi-automatic driving, automatic driving and the like by the driver.

  The DCM 2 is a wireless communication functional component mounted on the vehicle V. The DCM 2 wirelessly connects the vehicle V and the outside of the vehicle V, and transmits and receives information between the vehicle V and the outside of the vehicle V. The DCM 2 communicates with a communication device outside the vehicle V by various types of wireless communication such as wide-area wireless and narrow-area wireless, for example. Here, wide-area wireless systems include, for example, radio (AM, FM), TV (UHF, 4K, 8K), TEL, GPS, WiMAX (registered trademark), inter-vehicle communication, and the like. In addition, narrow-band wireless systems include, for example, ETC / DSRC, VICS (registered trademark), wireless LAN, millimeter wave communication, and the like. DCM2 in this embodiment transmits / receives information between the servers 101 among the cloud service apparatuses 100 mounted on the network outside the vehicle V via various networks. The server 101 stores various information exchanged with a plurality of target devices 4 mounted on the vehicle V. The in-vehicle system 1 of the present embodiment can receive various cloud services from the cloud service device 100 by communicating with and cooperating with the server 101 constituting the cloud service device 100 via the DCM 2. The DCM 2 is connected to the router / G / W unit 3 and can exchange information with the router / G / W unit 3. The DCM 2 is connected to the management device 6 and operates according to power and control signals supplied via the management device 6, and the operation including ON / OFF and the like is performed when exchanging information with the server 101. Be controlled.

  The router / G / W unit 3 is a communication relay functional component mounted on the vehicle V. The router / G / W unit 3 distributes information to the DCM 2 mounted on the vehicle V, the plurality of target devices 4, the primary storage unit 5, and the like. The router / G / W unit 3 is connected to the DCM 2, the plurality of target devices 4, and the primary storage unit 5, and transmits / receives information to / from the DCM 2, the plurality of target devices 4, and the primary storage unit 5. Can do. Here, the router / G / W unit 3 is connected to the DCM 2, the plurality of target devices 4, the primary storage unit 5, the management device 6, and the like via communication networks having different protocols. The router / G / W unit 3 functions as a gateway (G / W) function unit that converts a protocol between communication networks of different protocols and distributes information to each communication network. Examples of protocols set for each communication network include CAN communication, CAN-FD, LIN, CXPI, NFC, Giga-IR, UWB, Ethernet (registered trademark), HDMI (registered trademark), DSI, wireless transmission communication, Examples include, but are not limited to, USB 3.0, Transfer Jet, HomePlug-GreenPHY, wireless LAN communication, submillimeter wave communication, power line communication (PLC), narrowband wireless communication, weak radio wave communication, and the like. The router / G / W unit 3 is operated by power and control signals supplied via the management device 6, and its operation including ON / OFF and the like is controlled when exchanging information with the server 101. .

  The plurality of target devices 4 are mounted on the vehicle V and exchange information with the server 101. The plurality of target devices 4 may be configured to include various devices mounted on the vehicle V, may be installed on the vehicle V when the vehicle V is manufactured, or retrofitted after the vehicle V is manufactured. It may be a so-called after-product installed on the vehicle V. The plurality of target devices 4 are illustrated as including an ECU (Electronic Control Unit) 4A, a power source 4B, devices 4C, 4D,... As an example in the example of FIG. The ECU 4A is an electronic control unit that comprehensively controls each part of the vehicle V. For example, the ECU 4A controls the operation of the target device 4 other than the ECU 4A when the vehicle V is running. The power supply 4B is a source of power supply to each part of the in-vehicle system 1, and is configured by a power storage device such as a battery, a capacitor, or a capacitor, or a generator such as an alternator or a motor generator. The power supply 4B supplies power to each unit such as the DCM 2, the router / G / W unit 3, the plurality of target devices 4, and the primary storage unit 5 through the management device 6. The devices 4C, 4D,... May include, for example, various detectors, traveling system actuators, multimedia (Multi Media) devices, and the like. Examples of the various detectors include a vehicle speed sensor that detects information about the vehicle V, an acceleration sensor, a steering angle sensor, an accelerator sensor, a brake sensor, a shift position sensor, a voltage / ammeter for each part, a temperature / humidity meter, and the like. Sensors, various switches for detecting various operations by passengers of the vehicle V, imaging devices such as CCD cameras, various radars / sonars using infrared rays, millimeter waves, ultrasonic waves, GPS receivers, various wireless communication devices, vehicles V occupant biometric information (electrocardiogram information, heart rate, respiratory rate, pulse rate, blood pressure, body temperature, electroencephalogram, muscle current, and other vital signs, fingerprint information, vein information, facial information, voiceprint information, iris information, etc. May be included such as a device for detecting individual identification information, blood alcohol concentration, arousal level information, line-of-sight information, etc.). The travel system actuator may include, for example, a travel power train that is a drive device that travels the vehicle V, a steering device that steers the vehicle V, a braking device that brakes the vehicle V, and the like. As multimedia devices, for example, navigation devices, audio devices, meters, various displays, etc., a so-called user interface (UI) including information providing formats and modes is required according to the user's desires and preferences. It is possible to include a device that can be customized according to the setting. Information exchanged between each target device 4 and the server 101 includes upload information, download information, and the like. The upload information is information to be transmitted and uploaded from the target device 4 to the server 101. The upload information includes, for example, detection information of various detectors, control information of travel system actuators, usage information of multimedia devices, and the like. The download information is information received and downloaded from the server 101 to the target device 4. The download information includes, for example, various update programs, cloud service related information, and the like. Each target device 4 is connected to the router / G / W unit 3 via a communication network, and can transmit / receive information to / from the router / G / W unit 3. Furthermore, each target device 4 can transmit / receive information to / from the DCM 2, another target device 4, the primary storage unit 5, and the like via the router / G / W unit 3. Each target device 4 is operated by power and a control signal supplied via the management device 6, and its operation including ON / OFF and the like is controlled when information is exchanged with the server 101.

  The primary storage unit 5 functions as a data buffer (storage) function unit that collects and stores information transmitted and received via the DCM 2 between the plurality of target devices 4 mounted on the vehicle V and the server 101. . The primary storage unit 5 is connected to the router / G / W unit 3 and can transmit / receive information to / from the router / G / W unit 3. The primary storage unit 5 is connected to the management device 6, operates by power and control signals supplied via the management device 6, and includes ON / OFF and the like when exchanging information with the server 101. Its operation is controlled. The primary storage unit 5 of the present embodiment includes a storage unit 51 that stores information and a primary processing unit 52 that performs preset primary processing on information stored in the storage unit 51 in terms of functional concept. Consists of.

  The storage unit 51 can rewrite relatively large-capacity storage devices such as hard disks, SSDs (Solid State Drives), and optical discs, or RAM, flash memory, NVSRAM (Non Volatile Static Random Access Memory), etc. A simple semiconductor memory may be used. The storage unit 51 collects upload information from each target device 4 via the router / G / W unit 3 and stores the upload information from each target device 4 in a lump. The storage unit 51 collects download information from the server 101 via the DCM 2 and the router / G / W unit 3 and collectively stores the download information to each target device 4.

  The primary processing unit 52 includes, for example, an electronic circuit mainly composed of a well-known microcomputer including a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and an interface. The primary processing unit 52 executes a preset primary process for information stored in the storage unit 51 by executing a control program stored in a ROM, a RAM, or the like. For example, the primary processing unit 52 performs primary processing for reducing the amount of data for the upload information from each target device 4 that is aggregated and stored in the storage unit 51. The primary processing unit 52 performs, for example, selection of information that is actually uploaded to the server 101, reduction of the number of samplings in detection information of the detector, images, etc. Processes such as resolution reduction, deletion of personally identifiable information, and data compression are performed. Further, the primary processing unit 52 may perform, for example, various statistical processes, encryption processes, and the like as the primary process for the upload information collected and stored in the storage unit 51. On the other hand, the primary processing unit 52 also performs primary processing on the download information to each target device 4 that is aggregated and stored in the storage unit 51. The primary processing unit 52 may perform, for example, a data decompression process, a decryption process, and the like as a primary process for download information that is aggregated and stored in the storage unit 51.

  The management device 6 comprehensively manages the exchange of information between the plurality of target devices 4 and the server 101. The management device 6 includes, for example, an electronic circuit mainly composed of a known microcomputer including a CPU, a ROM, a RAM, and an interface. The management device 6 executes various processes for comprehensively managing the exchange of information between the plurality of target devices 4 and the server 101 by executing a control program stored in a ROM, a RAM, or the like. To do. The management device 6 is connected to the DCM 2, the router / G / W unit 3, the plurality of target devices 4, the primary storage unit 5, and the like, and the DCM 2, the router / G / W unit 3, the plurality of target devices 4, Electric power and control signals are supplied to the primary storage unit 5 and the like, and when the information is exchanged with the server 101, its operation is controlled including ON / OFF. The management device 6 according to the present embodiment includes a power supply control unit 61 and a communication control unit 62 in terms of functional concept.

  The power control unit 61 constitutes a power management function unit that controls supply of power from the power source 4 </ b> B to the DCM 2, the router / G / W unit 3, the plurality of target devices 4, and the primary storage unit 5. The power supply control unit 61 sends power from the power supply 4B to the primary storage unit 5, DCM2, and the router / G / W unit 3 when transmitting / receiving information between the primary storage unit 5 and the server 101 via the DCM2. While the supply of power to at least one of the plurality of target devices 4 is stopped. The power supply control unit 61 preferably supplies power to all other target devices 4 that are not operating other than the power supply 4B when transmitting / receiving information between the primary storage unit 5 and the server 101 via the DCM 2. To stop.

  The communication control unit 62 configures a communication management function unit that controls transmission / reception of information among the server 101, the DCM 2, the router / G / W unit 3, the primary storage unit 5, and the plurality of target devices 4. Typically, the communication control unit 62 aggregates and stores upload information from a plurality of target devices 4 in the primary storage unit 5 before a preset reservation time, and stores the upload information in the primary storage unit 5 at the reservation time. The upload information is transmitted (uploaded) to the server 101 via the router / G / W unit 3 and the DCM 2, and the upload information from the plurality of target devices 4 is stored in the server 101 collectively. Further, the communication control unit 62 typically receives (downloads) download information from the server 101 via the DCM 2 and the router / G / W unit 3 at a preset reservation time, and collects the downloaded information in the primary storage unit 5. The download information stored in the primary storage unit 5 after the reservation time is transmitted to the plurality of target devices 4 via the router / G / W unit 3 and stored in each target device 4.

  Here, the preset reservation time point may be arbitrarily set by the occupant of the vehicle V via the operation input device or the like, or may be set as appropriate in response to an upload / download request from the server 101. The reservation time is preferably set, for example, when the vehicle V is parked or when the ignition is off. In this case, the power supply control unit 61 uses the power necessary for exchanging information with the server 101 to the power storage device constituting the power supply 4B before the reservation time, for example, when the vehicle V travels, that is, the primary storage unit 5, DCM2 In addition, an amount of power necessary for properly operating the router / G / W unit 3 and the like is secured.

  Next, an example of upload processing executed by the in-vehicle system 1 will be described with reference to the flowchart of FIG. These control routines are repeatedly executed at a control cycle (clock unit) every several ms to several tens of ms, for example.

  First, the communication control unit 62 of the management device 6 aggregates and stores the upload information from each target device 4 via the router / G / W unit 3 in the storage unit 51 of the primary storage unit 5 (step ST1). During this time, the power supply control unit 61 supplies power from the power supply 4B to the DCM 2, the router / G / W unit 3, and the target device 4 to be in an ON (activated) state, and connects the power storage device constituting the power supply 4B to the server 101. Charge the amount of power required to exchange information.

  Next, the primary processing unit 52 of the primary storage unit 5 performs primary processing such as processing for reducing the amount of data, statistical processing, encryption processing, and the like for the upload information aggregated and stored in the storage unit 51. Processing is performed (step ST2).

  Next, the communication control unit 62 determines whether or not a preset reservation time has come (step ST3). If the communication control unit 62 determines that the preset reservation time is not reached (step ST3: No), the communication control unit 62 repeatedly executes this process until it is determined that the preset reservation time is reached. During this time, the power supply control unit 61 stops the power supply to all the target devices 4 that are not operating among the plurality of target devices 4 and sets them to the OFF (stopped) state.

  Next, when the communication control unit 62 determines that the preset reservation time has come (step ST3: Yes), the communication control unit 62 sends the upload information stored in the storage unit 51 via the router / G / W unit 3 and DCM2. The server 101 transmits (uploads), and stores the upload information from the plurality of target devices 4 in the server 101 (step ST4), ends the current control cycle, and shifts to the next control cycle. During this time, the power supply control unit 61 supplies power from the power supply 4B to the primary storage unit 5, the DCM 2, and the router / G / W unit 3 to be in the ON (startup) state, and operates among the plurality of target devices 4. The power supply to all the target devices 4 that have not been stopped is stopped and turned off (stopped).

  Next, an example of download processing executed by the in-vehicle system 1 will be described with reference to the flowchart of FIG. These control routines are repeatedly executed at a control cycle (clock unit) every several ms to several tens of ms, for example.

  First, the communication control unit 62 of the management device 6 determines whether or not a preset reservation time has come (step ST21). If it is determined that the preset reservation time is not reached (step ST21: No), the communication control unit 62 repeats the determination in step ST21 until it is determined that the reservation time is reached.

  If the communication control unit 62 determines that the preset reservation time has come (step ST21: Yes), the communication control unit 62 downloads the download information stored in the server 101 from the server 101 via the DCM 2 and the router / G / W unit 3. The received (downloaded) data is collected and stored in the storage unit 51 of the primary storage unit 5 (step ST22). During this time, the power supply control unit 61 supplies power from the power supply 4B to the primary storage unit 5, the DCM 2, and the router / G / W unit 3 to be in the ON (startup) state, and operates among the plurality of target devices 4. The power supply to all the target devices 4 that have not been stopped is stopped and turned off (stopped).

  Next, the primary processing unit 52 of the primary storage unit 5 performs primary processing such as data decompression processing and decryption processing on the download information aggregated and stored in the storage unit 51 (step ST23).

  Next, the communication control unit 62 transmits the download information stored in the storage unit 51 to the plurality of target devices 4 via the router / G / W unit 3, distributes them, and stores them in each target device 4 (step ST24). ), End the current control cycle, and shift to the next control cycle. During this time, the power supply control unit 61 supplies power from the power supply 4B to the DCM 2, the router / G / W unit 3, and the target device 4 to be in an ON (activated) state.

  In the on-vehicle system 1 described above, the communication control unit 62 aggregates and stores in the primary storage unit 5 information transmitted and received between the plurality of target devices 4 mounted on the vehicle V and the server 101 via the DCM 2. The information can be exchanged among the server 101, the primary storage unit 5, and the plurality of target devices 4. As a result, the in-vehicle system 1 can reduce the number of target devices 4 that must be turned on (started) when exchanging information with the server 101, and information for each target device 4 can be reduced. Information can be exchanged smoothly without adjusting the transmission / reception order of the messages. Therefore, the in-vehicle system 1 can appropriately exchange information with the server 101 outside the vehicle V.

  Furthermore, when the vehicle-mounted system 1 demonstrated above transmits / receives information between the primary memory | storage part 5 and the server 101 by the power supply control part 61, the primary memory | storage part 5, DCM2, and router * While supplying power to the G / W unit 3 to turn it on (activated), the power supply to at least one of the plurality of target devices 4, here, all the target devices 4 not operating is stopped and turned off ( Stop). As a result, the in-vehicle system 1 can reduce the number of targets to which power is supplied when information is exchanged with the server 101, and can reduce power consumption, thereby saving energy. . In addition, this makes it possible for the in-vehicle system 1 to suppress the amount of power required for exchanging information with the server 101. For example, it is necessary to reserve in advance in the power storage device that constitutes the power supply 4B before the reservation time point. A certain amount of electric power can be suppressed.

  Furthermore, in the in-vehicle system 1 described above, the communication control unit 62 causes the upload information from a plurality of target devices 4 to be aggregated and stored in the primary storage unit 5 before the reservation time, and is stored in the primary storage unit 5 at the reservation time. Since the uploaded upload information is transmitted to the server 101, the upload information of the plurality of target devices 4 can be smoothly transmitted to the server 101 and stored. Thus, the in-vehicle system 1 stores the upload information of the plurality of target devices 4 in the server 101 as backup information, so that, for example, when the vehicle V is changed, these backups are made to the vehicle V after the change. By downloading the information, the information on the vehicle V before the transfer can be taken over, and for example, the user settings of each device can be easily reproduced. The in-vehicle system 1 can store and accumulate upload information of a plurality of target devices 4 in the server 101 constituting the cloud service device 100. For example, the stored upload information is used as so-called big data. be able to.

  Further, in the in-vehicle system 1 described above, the communication control unit 62 receives the download information from the server 101 at the reservation time, stores it in the primary storage unit 5 and stores it in the primary storage unit 5 after the reservation time. Since the download information is transmitted to the plurality of target devices 4, the download information for the plurality of target devices 4 can be smoothly received from the server 101 and stored. Accordingly, the in-vehicle system 1 can provide various cloud services from the cloud service device 100 by cooperating with the server 101 configuring the cloud service device 100 based on, for example, download information to the plurality of target devices 4. Can receive.

  The in-vehicle system 1 is an example of the cloud service that includes the target device 4 based on, for example, collation processing, statistical processing, or the like between upload information uploaded from each target device 4 to the server 101 and so-called big data stored in the server 101. It is possible to enjoy driving support such as failure prediction, vehicle passenger abnormality prediction, vehicle V external environment abnormality prediction, alerting based on these, automatic driving, and the like. For example, the in-vehicle system 1 uses, as the cloud service, collation processing between upload information including big current and current information of fuses and resistors in electrical connection boxes such as harnesses and junction blocks that connect a plurality of target devices 4, statistics It is also possible to enjoy these failure predictions based on processing or the like.

  Further, in the in-vehicle system 1 described above, since the primary processing is performed on the information stored in the storage unit 51 by the primary processing unit 52 in the primary storage unit 5, for example, the server 101 The amount of communication data can be reduced and the load related to communication can be reduced. For example, the communication delay time can be reduced.

  In addition, the vehicle-mounted system which concerns on embodiment of this invention mentioned above is not limited to embodiment mentioned above, A various change is possible in the range described in the claim.

  The in-vehicle system 1A according to the modification of FIG. 4 includes a portable terminal 7A that can be carried inside and outside the vehicle V, and the temporary storage unit 5A and the communication module 2A are provided in the portable terminal 7A. The mobile terminal 7 </ b> A is a device that can be taken inside the vehicle V and can be taken outside the vehicle V. The mobile terminal 7A is configured by, for example, a mobile phone, a smartphone, a PHS, a PDA, a tablet PC, a notebook PC, a wearable terminal, and the like. In the state where the portable terminal 7A is brought into the vehicle V, the temporary storage unit 5A and the communication module 2A are connected to the router / G / W unit 3, and information is transmitted to and from the router / G / W unit 3. Can be sent and received. Further, the portable terminal 7A is connected to the management device 6 in a state where the portable terminal 7A is brought into the vehicle V, and the power and control signal supplied via the management device 6 are connected to the management device 6. When the information is exchanged with the server 101, the operation including ON / OFF is controlled. Also in this case, the in-vehicle system 1A transmits information to be transmitted / received between the plurality of target devices 4 mounted on the vehicle V and the server 101 via the communication module 2A provided in the mobile terminal 7A to the mobile terminal 7A. The information can be exchanged between the server 101, the primary storage unit 5 </ b> A, and the plurality of target devices 4 after being collected and stored in the provided primary storage unit 5 </ b> A. As a result, the in-vehicle system 1A can properly exchange information with the server 101 outside the vehicle V. In this case, the portable terminal 7A may be further provided with a part or all of the functions of the power control unit 61 and the communication control unit 62 of the management device 6.

  In the above description, the in-vehicle systems 1 and 1A are described as including a plurality of target devices 4, that is, the plurality of target devices 4 are described as constituting a part of the in-vehicle systems 1 and 1A. Not limited to. The plurality of target devices 4 may be configured separately from the in-vehicle systems 1 and 1A. That is, the in-vehicle systems 1 and 1A themselves may not include the plurality of target devices 4. In the above description, the ECU 4A and the power source 4B are described as the target devices 4 that exchange information with the server 101. However, the present invention is not limited to this, and the ECU 4A and the power source 4B may not be included in the target devices 4. The device 6 itself may constitute the target device 4 that exchanges information with the server 101.

  In the above description, the management device 6 has been described as including the power control unit 61 and the communication control unit 62 in terms of functional concept. However, the present invention is not limited to this, and the power supply without the power control unit 61 is provided. It may be a simple communication management device that does not perform control.

  In the above description, the information exchanged between each target device 4 and the server 101 has been described as including upload information, download information, and the like, but is not limited thereto, and may be either one.

  In the above description, the primary storage units 5 and 5A are functionally conceptually configured to include the storage unit 51 and the primary processing unit 52, but the configuration is not limited thereto, and the primary processing unit 52 is not included. It may be.

  The in-vehicle systems 1 and 1A described above are described as including the router / G / W unit 3, but the configuration allows mutual transmission and reception of information between the DCM 2, the plurality of target devices 4, and the primary storage unit 5. If so, a configuration without the router / G / W unit 3 may be employed.

1, 1A In-vehicle system 2 DCM (communication module)
2A Communication module 4 Target device 5, 5A Primary storage unit 51 Storage unit 52 Primary processing unit 61 Power supply control unit 62 Communication control unit 7A Mobile terminal 101 Server V Vehicle

Claims (6)

A communication module mounted on a vehicle and transmitting / receiving information to / from a server outside the vehicle;
A primary storage unit that aggregates and stores information transmitted and received via the communication module between a plurality of target devices mounted on the vehicle and the server;
The server, the primary storage unit, and a communication control unit that controls transmission / reception of information between the plurality of target devices,
In-vehicle system. A power control unit that controls power supply from a power source to the communication module, the primary storage unit, and the plurality of target devices;
The power supply control unit supplies power from the power supply to the primary storage unit and the communication module when information is transmitted and received between the primary storage unit and the server via the communication module. Suspending power supply to at least one of the plurality of target devices;
The in-vehicle system according to claim 1. The communication control unit aggregates and stores upload information that is information to be uploaded to the server from the plurality of target devices before a preset reservation time, and stores the primary storage unit at the reservation time. Transmitting the upload information stored in the server to the server via the communication module;
The in-vehicle system according to claim 1 or 2. The communication control unit receives download information, which is information to be downloaded from the server to the plurality of target devices at a preset reservation time, from the server via the communication module, and collects and stores it in the primary storage unit And transmitting the download information stored in the primary storage unit after the reservation time to the plurality of target devices,
The in-vehicle system according to any one of claims 1 to 3. The primary storage unit includes a storage unit that stores information, and a primary processing unit that performs a preset primary process on the information stored in the storage unit.
The in-vehicle system according to any one of claims 1 to 4. The temporary storage unit and the communication module are provided in a portable terminal that is portable inside and outside the vehicle.
The in-vehicle system according to any one of claims 1 to 5.

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