WO2014208012A1 - Communication device for vehicle - Google Patents

Abstract

A first communication unit (10) performs radio communication using a first short-range wireless communication method, and a second communication unit (20) performs radio communication using a second short-range wireless communication method that requires lower power consumption than the first short-range wireless communication method. At a communication control unit, a search section (S110-S130) searches for a communication terminal through the second communication unit (20) and establishes a communication connection. In addition, when a predetermined connection requirement is met while in a state wherein a communication connection has been established using the second short-range wireless communication method, a connection section (S170) establishes communication with the communication terminal through the first communication unit (10).

Description

Vehicle communication device Cross-reference of related applications

This application is based on Japanese Patent Application No. 2013-132858 filed on June 25, 2013, the contents of which are incorporated herein by reference.

The present disclosure relates to a vehicle communication device that is mounted on a vehicle and communicates with a communication terminal using a short-range wireless communication method.

The electronic equipment mounted on the vehicle operates using the battery mounted on the vehicle as a power source. However, when the vehicle engine is stopped, the on-vehicle generator (alternator) is also stopped and the battery is not charged. For this reason, in an electronic device that consumes power due to dark current, there is a risk that the battery may go up (see Patent Document 1).

The inventors of the present application have found the following regarding the vehicle communication device. 2. Description of the Related Art A vehicle communication device that communicates with a communication terminal possessed by a vehicle user by a communication method (hereinafter referred to as BT) in accordance with the Bluetooth (registered trademark) standard is used. In this type of vehicle communication device, the user can automatically connect by simply carrying the communication terminal and getting on the vehicle.

However, in order to realize automatic connection between the vehicle communication device and the communication terminal, the vehicle communication device needs to constantly search for a communication terminal to be communicated, which may increase the battery.

Japanese Published Patent Publication No. 2004-67044

This disclosure aims to reduce power consumption required for searching for a communication terminal to be a communication target in a vehicle communication device that performs wireless communication using a short-range wireless communication method.

According to an example of the present disclosure, a vehicle communication device mounted on a vehicle, the first communication unit communicating with a communication terminal using a first short-range wireless communication method, and the first short-range wireless communication method. A second communication unit that communicates with the communication terminal using a second short-range wireless communication method that consumes less power than the first communication unit, and a search unit that searches for the communication terminal by the second communication unit and establishes a communication connection. A connection unit that establishes a communication connection with the communication terminal by the first communication unit when a predetermined connection condition is established in a state where the communication connection by the second short-range wireless communication method is established; A vehicular communication device is provided.

According to the vehicle communication device according to the present disclosure, since the communication terminal is searched for in the second communication unit with low power consumption, the consumption required for searching for the communication terminal compared with the case of searching for the communication terminal in the first communication unit. Electric power can be reduced. The power consumption of the battery can be reduced to suppress the battery running out.

The above and other objects, features, and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings. In the accompanying drawings,
FIG. 1 is a configuration diagram showing a schematic configuration of a vehicle communication device, FIG. 2 is a flowchart showing a connection process executed by the communication control unit. FIG. 3A is a diagram illustrating how the connection state of the BT connection and the BLE connection changes depending on the position of the mobile terminal and the vehicle. FIG. 3B is a diagram illustrating how the connection state of the BT connection and the BLE connection changes depending on the position of the mobile terminal and the vehicle. FIG. 4 is a flowchart showing the release process executed by the communication control unit. FIG. 5A is a diagram illustrating a state in which the disconnection state of the BT connection and the BLE connection changes depending on the position of the mobile terminal and the vehicle. FIG. 5B is a diagram illustrating a state in which the disconnection state of the BT connection and the BLE connection changes depending on the position of the mobile terminal and the vehicle. FIG. 6A is a diagram showing a change in the connection state of the BT connection by the vehicle communication device for comparison, FIG. 6B is a diagram illustrating a change in the connection state of the BT connection and the BLE connection by the vehicle communication device of the embodiment.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.

<Overall configuration>
A vehicle communication device 1 of this embodiment shown in FIG. 1 is mounted on a vehicle (for example, an automobile) and communicates with a mobile terminal 2 possessed by a user (for example, a driver). The portable terminal 2 corresponds to an example of a communication terminal according to the present disclosure. Specifically, when entering the communication area of the vehicle communication device 1, the vehicle communication device 1 and the portable terminal 2 are connected (referred to as automatic connection) without any special operation by the user.

The vehicle communication device 1 includes a BT communication unit 10, a BLE communication unit 20, a sensor unit 30, and a communication control unit 50. The vehicle communication device 1 operates using a battery mounted on the vehicle as a power source.

The BT communication unit 10 wirelessly communicates with the mobile terminal 2 by a communication method (BT) according to the Bluetooth standard which is one of short-range wireless communication standards. As shown in FIG. 3A, FIG. 3B, and the like, the BT communication unit 10 defines an area covering the entire vehicle interior as a communication area (hereinafter referred to as a BT communication possible range A1). The BT communication unit 10 can establish a BT communication connection (hereinafter referred to as a BT connection) with the mobile terminal 2 existing in the BT communicable range A1, and the BT connection is established. Data communication by BT becomes possible.

The BLE communication unit 20 wirelessly communicates with the mobile terminal 2 by a communication method (hereinafter referred to as BLE) in accordance with the Bluetooth Low Energy standard, which is a low power consumption mode in BT. BLE consumes less power than BT. On the other hand, BT has a higher data transfer rate (at least the maximum value of the data transfer rate) than BLE.

As shown in FIGS. 3A, 3B, etc., the BLE communication unit 20 covers an area covering the vehicle periphery (particularly, a region where the user gets on and off) as a communication area (hereinafter referred to as a BLE communication possible range A2). ). The BLE communication unit 20 can establish a communication connection by BLE (hereinafter referred to as BLE connection) with the portable terminal 2 existing in the BLE communicable range A2, and the BLE connection is established. Data communication by BLE becomes possible.

The BT communication unit 10 and the BLE communication unit 20 perform wireless communication using a 2.4 GHz band radio wave with the portable terminal 2 having both the function of communicating with BT and the function of communicating with BLE. . The mobile terminal 2 is, for example, a mobile phone (including a so-called smartphone).

The sensor unit 30 includes a door opening / closing sensor 31 and a seating sensor 32. The door opening / closing sensor 31 detects opening / closing of the door of the driver's seat. The seating sensor 32 is, for example, a plurality of pressure sensors provided in the seat portion of the driver seat, and detects whether or not the driver is seated in the driver seat based on output values of the plurality of pressure sensors. .

The communication control unit 50 is configured by a known microcomputer centered on a CPU 51, ROM 52, and RAM 53. The CPU 51 executes connection processing and disconnection processing described later according to a program stored in the ROM 52.

<Processing by CPU>
Next, processing executed by the CPU 51 will be described. The CPU 51 alternately executes connection processing and disconnection processing described below (such as connection processing, disconnection processing, connection processing,...).

<Connection process>
The connection process will be described based on the flowchart shown in FIG. The connection process is a process for establishing wireless communication between the vehicle communication device 1 and the portable terminal 2 possessed by the driver.

First, in S110 (S represents a step), the communication control unit 50 uses the BLE communication unit 20 to search the portable terminal 2 according to a known BLE procedure (hereinafter, this state is referred to as a search state). When the mobile terminal 2 (or the driver carrying the mobile terminal 2) is present at a position away from the vehicle (for example, the position A shown in FIG. 3A), the vehicular communication device 1 includes the BT communication unit 10 and the BLE communication. None of the units 20 is in an unconnected state. Note that the position A is outside the BLE communicable range A2.

Next, in S120, the communication control unit 50 determines whether or not the portable terminal 2 possessed by the driver exists within the BLE communication possible range A2. When it is determined that the mobile terminal 2 does not exist within the BLE communicable range A2, the communication control unit 50 continues the search state until it is determined that the mobile terminal 2 exists within the BLE communicable range A2. On the other hand, when it is determined that the mobile terminal 2 exists within the BLE communication possible range A2 (see position B in FIG. 3A), the connection process proceeds to S130. Note that the position B is inside the BLE communicable range A2 and outside the BT communicable range A1.

In S130, the communication control unit 50 establishes a BLE connection between the mobile terminal 2 and the BLE communication unit 20 in accordance with a well-known BLE procedure. At this time, the BT address of the portable terminal 2 is acquired and stored in the RAM 53 as is well known.

In subsequent S140, prior to establishment of the BT connection between the BT communication unit 10 and the portable terminal 2, BT information (corresponding to communication establishment information) is acquired from the portable terminal 2, and the acquired BT information is stored in the RAM 53. The BT information is used when communicating by BT.

Next, in S150, the communication control unit 50 determines whether or not a predetermined BT connection condition is established. The BT connection condition is set in advance as a trigger for starting the BT connection between the mobile terminal 2 and the BT communication unit 10. In the present embodiment, a carry-in condition that is a criterion for determining that the mobile terminal 2 has been carried into the passenger compartment is set as a BT connection condition. The carry-in condition referred to in the present embodiment is a state in which the driver carrying the mobile terminal 2 gets into the passenger compartment (see position C in FIG. 3A). The position C is inside the BT communication possible range A1. That is, at the position A, the mobile terminal 2 is not connected, and at the position B, the mobile terminal 2 is BLE connected. At the position C, the mobile terminal 2 disconnects the BLE connection and establishes the BT connection.

Specifically, the signal acquired from the door opening / closing sensor 31 indicates a transition from the closed state of the driver's seat door to the open state, and the signal acquired from the seating sensor 32 indicates a state where a person is seated in the driver's seat. In addition, the communication control unit 50 determines that the BT connection condition (carry-in condition) is satisfied. If the BT connection condition is not satisfied, the communication control unit 50 stands by until the BT connection condition is satisfied. On the other hand, if the BT connection condition is satisfied, the process proceeds to S160.

In S160, the communication control unit 50 disconnects the BLE connection established between the portable terminal 2 and the BLE communication unit 20 in accordance with a well-known BLE procedure. In subsequent S <b> 170, the communication control unit 50 establishes a BT connection between the portable terminal 2 and the BT communication unit 10 using the BT information stored in the RAM 53. Then, this process ends.

<Cutting process>
Next, the cutting process will be described based on the flowchart shown in FIG. The disconnection process is executed when the connection process ends. At this time, the portable terminal 2 (the driver who owns the portable terminal 2) is present at the position C shown in FIGS. 5A and 5B, for example, and the BT connection is established with the BT communication unit 10 It has become.

First, in S210, the communication control unit 50 determines whether or not a predetermined BT cancellation condition is satisfied. The BT cancellation condition is set in advance as a trigger for disconnecting the BT connection between the mobile terminal 2 and the BT communication unit 10. In the present embodiment, an unloading condition that is a criterion for determining that the portable terminal 2 has been unloaded from the passenger compartment is set as the BT cancellation condition. The carry-out condition referred to in the present embodiment is a state where the driver carrying the mobile terminal 2 gets out of the passenger compartment.

Specifically, the signal acquired from the door opening / closing sensor 31 indicates a transition from the closed state of the driver's seat door to the open state, and the signal acquired from the seating sensor 32 indicates a state where a person has left the driver's seat. In this case, the communication control unit 50 determines that the BT cancellation condition (unloading condition) is satisfied. If the BT cancellation condition is not satisfied, the communication control unit 50 stands by until the BT cancellation condition is satisfied. On the other hand, if the BT release condition is satisfied, the process proceeds to S220.

In S220, the communication control unit 50 disconnects the BT connection established between the mobile terminal 2 and the BT communication unit 10 in accordance with a well-known BT procedure.

Next, in S230, according to a well-known BLE procedure, the communication control unit 50 establishes a BLE connection again between the mobile terminal 2 and the BLE communication unit 20 (see position D in FIG. 5A). The position D is outside the BT communicable range A1 and inside the BLE communicable range A2. In continuing S240, the communication control part 50 judges whether the portable terminal 2 exists in BLE communication possible range A2. When it is determined that the mobile terminal 2 exists in the BLE communication possible range A2, the connection state by BLE is continued until the position of the mobile terminal 2 is out of the range. That is, the portable terminal 2 and the BLE communication unit 20 continue communication by BLE until the position of the portable terminal 2 is out of the range. On the other hand, when it is determined that the portable terminal 2 does not exist within the BLE communication possible range A2 (see position E in FIG. 5A), the process proceeds to S250. Note that the position E is outside the BLE communicable range A2. At position C, the mobile terminal 2 is BT-connected, and at position D, the mobile terminal 2 disconnects the BT connection and makes a BLE connection. At the position E, the mobile terminal 2 is not connected.

In S250, the communication control unit 50 disconnects the BLE connection established between the portable terminal 2 and the BLE communication unit 20 in accordance with a well-known BLE procedure. Next, in S260, the communication control unit 50 deletes the BT information of the mobile terminal 2 stored in the RAM 53. Then, this process ends. The connection process described above is executed when the disconnection process ends.

As described above, the present embodiment is configured such that the BLE communication unit 20 with low power consumption searches for the mobile terminal 2 (S110). For this reason, for example, compared with the case where the search of the portable terminal 2 is performed by the BT communication part 10, the power consumption required for the search of the portable terminal 2 can be reduced. As a result, the power consumption of the battery can be reduced and the battery can be prevented from running out.

In this embodiment, even before the BT connection is established between the vehicle communication device 1 and the portable terminal 2, if the portable terminal 2 exists in the BLE communication possible range A2, the BLE connection is established (S120- S130). Therefore, it is possible to use a function (for example, an application using a BLE connection) that can be realized at the data transfer rate of BLE.

The effect of this embodiment will be described with reference to FIGS. 6A and 6B. The vehicle communication device for comparison shown in FIG. 6A does not include the BLE communication unit 20 but includes only the BT communication unit 10. For this reason, the BT connection is established only after the BT connection condition is satisfied and until the BT release condition is satisfied (for example, when the mobile terminal 2 is present in the passenger compartment). The vehicle interior corresponds to the position C. Therefore, in an area where the BT connection condition is not satisfied (in this embodiment, outside the passenger compartment, for example, position F and position G), it is possible to use a function (application using BT connection) realized by BT data communication. Can not. At position F, the mobile terminal 2 is not connected to BT, and at position C, the mobile terminal 2 is connected to BT. At the position G, the mobile terminal 2 is in a state in which the BT connection is disconnected and is not connected. Although it is technically possible to extend the BT communicable range A1 to the outside of the passenger compartment and establish a BT connection before the driver gets into the passenger compartment, the risk of battery exhaustion increases. There is a fear.

On the other hand, in the present embodiment, as shown in FIG. 6B, within the BLE communication possible range A2 (corresponding to the position B and the position D), it is realized by BLE data communication even from outside the passenger compartment. Functions can be used. At position A, the mobile terminal 2 is not connected, and at position B, the mobile terminal 2 is BLE-connected. At the position C, the mobile terminal 2 disconnects the BLE connection and establishes the BT connection. At the position D, the mobile terminal 2 disconnects the BT connection and connects the BLE. At the position E, the mobile terminal 2 is disconnected and disconnected.

Note that an application using a BT connection is a function that requires a relatively high data transfer rate, such as data streaming or a hands-free call using a microphone and speaker function. The application using the BLE connection is a function that can be realized at a relatively low data transfer speed, such as door locking and unlocking, lighting on and off of the lighting under the door, and the like. Note that these functions are merely examples, and are not particularly limited.

In the present embodiment, until the portable terminal 2 is carried into the passenger compartment after being carried into the passenger compartment, specifically, the BT connection is established only while the driver enters the passenger compartment (S150, S170, S210). , S220). That is, the BT connection is established in a situation where it is considered that the application using the BT connection is likely to be used (a situation where the driver is in the passenger compartment), and the BT connection is disconnected in other situations. Therefore, current consumption due to BT connection can be reduced.

Furthermore, in the present embodiment, the BLE connection is not established while the BT connection is established (S160). Thereby, the power consumption by BLE connection can be reduced. In the present embodiment, when the mobile terminal 2 is carried out of the passenger compartment when the BT connection is established, that is, when the driver gets out of the passenger compartment, the BLE connection is established again (S210, S230). Thereby, the application by BLE connection can be performed after alighting.

Furthermore, in the present embodiment, the BLE connection is established, and BT information necessary for establishing the BT connection is acquired (stored in the RAM 53) before the BT connection is established (S140). According to this, when the BT connection condition is satisfied, the BT connection can be performed using the BT information acquired in advance, so that the BT connection can be quickly established. As a result, the driver can quickly use an application using the BT connection when getting into the passenger compartment.

In this embodiment, when the BT cancellation condition is satisfied, the acquired BT information is discarded (S260). That is, the BT information is deleted from the RAM 53. As a result, even if the BT information of the mobile terminal 2 is changed, new BT information is acquired every time the BLE connection is established, so the communication control unit 50 establishes the BT connection using the latest BT information. can do.

In the present embodiment, the BT communication unit 10 corresponds to an example of a first communication unit (or means), and the BLE communication unit 20 corresponds to an example of a second communication unit (or means). Further, S110 to S130 of the connection processing correspond to an example of processing as a search unit (or means), S140 corresponds to an example of processing as a communication establishment information acquisition unit (or means), and S160 corresponds to a temporary disconnection unit (or means). Or S 170 corresponds to an example of processing as a connection unit (or means). Also, S220 of the release process corresponds to an example of a process as a disconnection unit (or means), S230 corresponds to an example of a process of a reconnection unit (or means), and S260 corresponds to a communication establishment information discarding unit (or means). Corresponds to an example of the process.

Note that the above “unit (or means)” focuses on the functions of the communication control unit 50 and categorizes the inside thereof for convenience, and the inside of the communication control unit 50 includes each “unit”. It does not mean that it is physically divided into parts corresponding to.

Furthermore, the flowchart of this embodiment or the process of the flowchart is composed of a plurality of steps, and each step is expressed as, for example, S110. Further, each step can be divided into a plurality of sub-steps, while a plurality of steps can be combined into one step.

<Other embodiments>
As mentioned above, although embodiment of this indication was described, it cannot be overemphasized that this indication can take various forms, without being limited to the above-mentioned embodiment. For example, the functions of one component may be distributed to a plurality of components, or the functions of a plurality of components may be integrated into one component. Further, at least a part of the configuration of the above embodiment may be replaced with a known configuration having the same function.

In the embodiment described above, whether the portable terminal 2 is carried in and out of the passenger compartment is determined based on getting on and off the driver's passenger compartment, but the present invention is not limited to this. For example, the determination may be made based not only on the driver but also on and off of the user's passenger compartment. Moreover, you may determine based on communication whether the portable terminal 2 exists in a vehicle interior irrespective of a user's boarding / alighting.

Further, the BT connection condition and the BT release condition are not limited to carrying the portable terminal 2 into and out of the passenger compartment. For example, the start of the vehicle engine may be set as the BT connection condition, and the stop of the engine may be set as the BT release condition. The starting and stopping of the engine are determined by detecting, for example, an on state and an off state of an ignition switch.

In other words, compared to the situation where the driver is trying to get into the passenger compartment, the situation where the engine start is detected is more likely to be used by the driver using the BT connection application. The situation is considered. Moreover, since the battery is charged while the engine is starting, it is possible to prevent the battery from running out. Therefore, the power consumption due to the BT connection can be further reduced by adopting a configuration in which the BT connection is established only in such a situation. As a result, the power consumption of the battery can be further reduced.

Note that the BT connection condition and the BT release condition may be set so that the triggers are different, for example, the engine start is the BT connection condition and the carry-out of the portable terminal 2 is the BT release condition.

In the above-described embodiment, the carrying-in and the carrying-out of the portable terminal 2 to / from the passenger compartment are determined by detecting the opening / closing state of the door using the door opening / closing sensor 31, but the present invention is not limited to this. For example, instead of the door opening / closing sensor 31, using a touch sensor that detects contact and non-contact of the human body provided on a handle outside the passenger compartment of the driver's seat door, the driver tries to get into the passenger compartment and You may detect the operation | movement which is going to descend. Moreover, you may make it detect using an image.

In the above embodiment, the vehicle communication device 1 is configured not to establish a BLE connection while a BT connection is established. The BLE connection may be established continuously while the BT connection is established. That is, S160 may be deleted in the connection process shown in FIG. 2, and S230 may be deleted in the disconnection process shown in FIG. Thereby, while the BT connection is established, the application using the BLE connection can be executed in parallel with the BT connection.

In the above embodiment, the BT information is acquired from the mobile terminal 2 by the BLE connection before the BT connection condition is established. A normal BT procedure may be executed such that BT information is acquired from the mobile terminal 2 by BT connection after the BT connection is established. That is, in the connection process shown in FIG. 2, S140 may be deleted, and a process of acquiring BT information from the mobile terminal 2 may be added after S170.

In the above embodiment, the BT information is deleted after the BLE connection is disconnected. However, the present invention is not limited to this. For example, the BT information may be deleted after the BT connection is disconnected. That is, in the cutting process shown in FIG. 4, the process executed in S260 may be moved after S220.

In the above-described embodiment, an example in which communication is performed between the mobile terminal 2 possessed by the driver and the vehicle communication device 1 has been described. However, the mobile terminal that communicates with the vehicle communication device 1 is a user other than the driver (carrying on the vehicle). A portable terminal possessed by a person).

In the above embodiment, the vehicular communication apparatus 1 is configured by applying BT and BLE as the short-range wireless communication method, but the short-range wireless communication method is not limited to this. The short-range wireless communication method may be, for example, WiFi (registered trademark), ZigBee (registered trademark), or the like.

The vehicle communication device according to the present disclosure is mounted on a vehicle, and the first communication unit communicates with the communication terminal using the first short-range wireless communication method. In addition, the second communication unit communicates with the communication terminal using the second short-range wireless communication method, which consumes less power than the first short-range wireless communication method.

Furthermore, the search unit searches for a communication terminal by the second communication unit and establishes a communication connection. Further, when a predetermined connection condition is established in a state where the connection unit establishes a communication connection by the second short-range wireless communication method, the first communication unit establishes a communication connection with the communication terminal.

According to such a configuration, since the communication terminal is searched for in the second communication unit with low power consumption, the power consumption required for searching for the communication terminal is reduced as compared with the case of searching for the communication terminal in the first communication unit. Can do. As a result, the power consumption of the battery can be reduced and the battery running can be suppressed.

In addition, the code | symbol in the parenthesis described in the claim shows the correspondence with the specific means as described in embodiment mentioned later as one aspect, Comprising: The technical scope of this indication is limited is not.

In addition to the vehicle communication device described above, the present disclosure includes various systems including the device as a component, a program for causing a computer to function as each unit constituting the device, a recording medium on which the program is recorded, communication It can be realized in various forms such as a control method.

As mentioned above, although embodiment and a structure concerning this indication were illustrated, an embodiment and a composition concerning this indication are not limited to each embodiment and each composition mentioned above. Embodiments and configurations obtained by appropriately combining technical elements disclosed in different embodiments and configurations are also included in the scope of the embodiments and configurations according to the present disclosure.

Claims (12)

1. A vehicle communication device mounted on a vehicle,
   A first communication unit (10) that communicates with a communication terminal in a first short-range wireless communication method;
   A second communication unit (20) that communicates with the communication terminal in a second short-range wireless communication method that consumes less power than the first short-range wireless communication method;
   A search unit (S110-S130) for searching for the communication terminal by the second communication unit (20) to establish a communication connection;
   A connection unit that establishes a communication connection with the communication terminal by the first communication unit (10) when a predetermined connection condition is established in a state where the communication connection by the second short-range wireless communication method is established. S170)
   A vehicle communication device comprising:
2. The vehicular communication device according to claim 1, wherein the connection unit (S170) uses, as the connection condition, a carry-in condition that is a criterion for determining that the communication terminal has been carried into the passenger compartment.
3. The vehicle communication device according to claim 2, wherein the connection unit (S170) sets the entry condition that the user has entered the vehicle compartment.
4. The vehicle communication device according to claim 1, wherein the connection unit (S170) sets the connection condition that a vehicle engine is started.
5. The first short-range wireless communication method is a communication method in accordance with a Bluetooth standard, and the second short-range wireless communication method is a communication method in accordance with a Bluetooth Low Energy standard. The vehicle communication device according to claim 1.
6. Any one of Claim 1 to 5 further provided with the cutting | disconnection part (S220) which cut | disconnects the said communication connection, when predetermined cancellation | release conditions are satisfied in the state where the communication connection by the said 1st short-range wireless communication system is established. The vehicle communication device according to claim 1.
7. The vehicular communication device according to claim 6, wherein the cutting unit (S220) sets a carry-out condition serving as a determination criterion that the communication terminal has been carried out of a passenger compartment as the release condition.
8. The vehicular communication device according to claim 7, wherein the cutting unit (S220) sets the carry-out condition that the user gets out of the passenger compartment.
9. The vehicle communication device according to claim 6, wherein the cutting unit (S220) sets the release condition that the vehicle engine is stopped.
10. A temporary disconnection unit (S160) for disconnecting the communication connection when the connection condition is established in a state where the communication connection by the second short-range wireless communication method is established;
    A reconnection unit that establishes a communication connection with the communication terminal by the second communication unit (20) when the cancellation condition is satisfied in a state where the communication connection by the first short-range wireless communication method is established. S230)
    The vehicle communication device according to any one of claims 6 to 9, further comprising:
11. A communication establishment information acquisition unit (S140) that acquires communication establishment information necessary for establishing a communication connection by the first short-range wireless communication method in a state where a communication connection by the second short-range wireless communication method is established. The vehicle communication device according to any one of claims 1 to 10, further comprising:
12. The communication establishment information discard part (S260) which discards the communication establishment information acquired by the communication establishment information acquisition part (S140) when the communication connection by the first short-range wireless communication method is disconnected. The vehicle communication device according to 11.

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