JP2010127027A - Electronic key system, electronic key, on-board device and control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic key system capable of notifying its fact when there exists an on-vehicle device in an undesirable state for a user to leave from a vehicle. <P>SOLUTION: This electronic key system comprises an electronic key having a radio receiving part and a display part, and the on-vehicle device having a radio transmission part. The on-vehicle device transmits vehicle information of indicating a plurality of device states of the vehicle equipped with the on-vehicle device to the electronic key by a transmission control part. The electronic key has a display control part for performing display on the vehicle information by receiving this vehicle information. The display control part confirms its content when receiving the vehicle information, and determines whether or not to be in the undesirable state for the user to leave from the vehicle. In the undesirable state, an image of indicating the device being its cause is displayed on the display part. In addition, notification by a notifying part is performed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electronic key system, an electronic key, an in-vehicle device, and a control method, and more particularly, to an electronic key system, an electronic key, an in-vehicle device, and a control method that display a vehicle state on the electronic key.

  2. Description of the Related Art In recent years, with the electronicization of various devices mounted on vehicles, electronic key systems that turn on / off the vehicle engine and power using electronic keys have become widespread. However, in the conventional system, the door is locked when the button of the electronic key is pressed, but there is a problem that the locking is meaningless unless the electric window attached to the door is closed.

  Further, as a problem related to the above, for example, when the user locks without noticing that the room light is turned on and leaves the vehicle as it is, the battery may run out. For example, the user may be locked without noticing that the parking brake is not applied. In this case, the brake is not applied until the next boarding, which is very dangerous.

  In addition to this, for example, there may be a situation in which the user does not notice that the door is not completely closed (hereinafter referred to as “half-door state”) and leaves the vehicle with the intention of locking.

  As described above, in the conventional electronic key system, just because locking is performed, the user is not always in a state suitable for leaving the vehicle. Therefore, it is desirable that there is a means for notifying the user when the state is not suitable.

In relation to the above, Patent Document 1 discloses an electronic key capable of displaying a locked state of a vehicle. The electronic key is configured to notify information indicating a locked state by turning on a light emitting element for display when a user presses a confirmation switch provided in the electronic key.
Japanese Patent Laid-Open No. 11-093473

  However, the information that can be displayed by the electronic key of Patent Document 1 is only the locked state of the vehicle. For this reason, other information about the vehicle, such as the open / closed state of the electric window, the lighting state of the interior lamp, etc., could not be notified to the user who left the vehicle. As for the half-door state, the state can be confirmed using the electronic key disclosed in Patent Document 1, but this is limited to the case where the user performs a confirmation operation. In other words, if the confirmation operation is not performed, there is a problem in terms of security because it is left in a half-door state.

  The present invention has been made in view of the above problems, and its object is to check the state of an in-vehicle device included in the vehicle when the user leaves the vehicle, and is not preferable for the user to leave the vehicle. It is an object to provide an electronic key system, an electronic key, an in-vehicle device, and a control method capable of performing notification when the in-vehicle device is present.

  In order to achieve the above object, an electronic key system of the present invention includes an electronic key including a radio receiving unit and a display unit for receiving radio waves, and an in-vehicle device including a radio transmitting unit for transmitting radio waves. In the key system, the vehicle-mounted device includes a transmission control unit that controls the wireless transmission unit to transmit radio waves including vehicle information indicating a plurality of device states of the vehicle equipped with the vehicle-mounted device, and the electronic device The key includes a display control unit that controls the display unit based on the vehicle information included in the radio wave received by the wireless reception unit.

  According to this configuration, the electronic key system of the present invention is configured to include an electronic key including a wireless reception unit and a display unit, and an in-vehicle device including a wireless transmission unit. The in-vehicle device transmits vehicle information indicating a plurality of device states of the vehicle equipped with the in-vehicle device to the electronic key by the transmission control unit. The electronic key includes a display control unit that receives the vehicle information and performs display related to the vehicle information. Thereby, if the electronic key is within a range where radio waves can be received from the vehicle, the user can be notified of the state of the vehicle during parking or the like.

  In order to achieve the above object, in the electronic key system of the present invention, the display control unit determines whether or not abnormality information indicating that the device state is abnormal is included in the vehicle information, If it is included, control is performed so that an image related to the abnormality information is displayed on the display unit.

  According to this configuration, when the electronic key display control unit receives the vehicle information, the content is confirmed, and it is determined whether there is a device that is not preferable for the user to leave the vehicle (= abnormal state). To do. When there is a device in an abnormal state, an image indicating the device is displayed on the display unit. Thus, it is possible to notify an abnormal state such as forgetting to lock or forgetting to apply the parking brake without requiring a user operation.

  In order to achieve the above object, the electronic key system of the present invention includes a notification unit that notifies when the electronic key includes the abnormality information in the vehicle information.

  According to this configuration, the electronic key includes the notification unit that performs notification using a warning sound, vibration, or the like. The notification unit performs notification when there is information indicating an abnormal state in the received vehicle information. Thereby, compared with the notification only by image display, the probability that the user recognizes the abnormal state can be increased.

  In order to achieve the above object, the electronic key system according to the present invention is configured so that the transmission control unit is a part of the vehicle information when a power source included in the vehicle is in a predetermined state. The radio transmission unit is controlled to transmit a radio wave including second vehicle information which is a part of the vehicle information when a radio wave including vehicle information is transmitted and a door included in the vehicle is locked.

  According to this configuration, the transmission control unit transmits the first vehicle information that is a part of the vehicle information when the power source of the vehicle is in a predetermined state, for example, when the ACC power source is turned off. To do. Moreover, when the door of a vehicle will be in the locked state, the 2nd vehicle information which is a part of vehicle information is transmitted. Thereby, regarding the device that can determine the normal state / abnormal state only when the user is out of the vehicle, the state can be notified using the second vehicle information. That is, the notification can be performed according to three states: the ACC power source is on, the ACC power source is off, and the user is out of the vehicle.

  In order to achieve the above object, in the electronic key system of the present invention, the wireless transmission unit includes a first transmission unit that transmits radio waves for in-vehicle use and a second transmission unit that transmits radio waves for use outside the vehicle. The transmission control unit controls the first transmission unit to transmit a radio wave including the first vehicle information, and controls the second transmission unit to transmit a radio wave including the second vehicle information.

  According to this configuration, the wireless transmission unit of the vehicle includes the first transmission unit that transmits radio waves for the inside of the vehicle and the second transmission unit that transmits radio waves for the outside of the vehicle. The transmission control unit transmits the first vehicle information using the first transmission unit, and transmits the second vehicle information using the second transmission unit. For this reason, the electronic key on the receiving side can individually receive in-vehicle information and out-vehicle information.

  In order to achieve the above object, in the electronic key system of the present invention, the first vehicle information includes information indicating a window opening / closing state, a brake state, or an ETC (Electronic Toll Collection System) card insertion state of the vehicle. The second vehicle information includes information indicating an interior light state or a door open / close state of the vehicle.

  According to this configuration, the first vehicle information includes information indicating the window opening / closing state of the vehicle, the parking brake state, or the ETC card insertion state. Further, the second vehicle information includes information indicating the indoor lamp state or the door opening / closing state. For this reason, it is possible to increase the probability of forgetting to operate these devices, for example, forgetting to close the windows.

  In order to achieve the above object, an electronic key of the present invention includes a wireless reception unit that receives radio waves and a display unit, and an electronic key that communicates with an in-vehicle device by the wireless reception unit. And a display control unit configured to control the display unit based on the vehicle information when the wireless reception unit receives radio waves including vehicle information indicating a plurality of device states of the equipped vehicle. .

  In order to achieve the above object, the electronic key of the present invention includes the display control unit that determines whether or not the vehicle information includes abnormality information indicating that the device state is abnormal. If it is, the control unit controls to display an image related to the abnormality information on the display unit.

  In order to achieve the above object, the electronic key of the present invention includes a notification unit that performs notification when the vehicle information includes the abnormality information.

  According to the above configuration, the same operation as the electronic key included in the electronic key system described above can be obtained.

  In order to achieve the above object, an in-vehicle device according to the present invention includes a wireless transmission unit that is mounted on a vehicle and transmits a radio wave, and a radio wave that includes vehicle information indicating a plurality of device states of the vehicle. In a vehicle-mounted device including a transmission control unit that controls a wireless transmission unit, the transmission control unit is a part of the vehicle information when a power source included in the vehicle is in a predetermined state. The radio transmission unit is controlled to transmit a radio wave including second vehicle information that is a part of the vehicle information when a radio wave including the vehicle information is transmitted and a door included in the vehicle is locked. It is characterized by that.

  In order to achieve the above object, the in-vehicle apparatus of the present invention includes a first transmitter that transmits radio waves for in-vehicle use and a second transmitter that transmits radio signals for outside the vehicle. The transmission control unit controls the first transmission unit to transmit a radio wave including the first vehicle information, and controls the second transmission unit to transmit a radio wave including the second vehicle information.

  According to the above configuration, the same operation as that of the in-vehicle device included in the above electronic key system can be obtained.

  In order to achieve the above object, a control method of the present invention is a control method for controlling an electronic key including a display unit, and includes vehicle information indicating a plurality of device states of a vehicle that can communicate with the electronic key. A reception step of receiving and determining whether or not the vehicle information includes abnormality information indicating that the device state is abnormal. If included, an image relating to the abnormality information is displayed on the display unit. It includes a display control step for controlling to display, and a notification step for performing notification when the abnormality information is included in the vehicle information.

  According to this configuration, the control method of the present invention includes a receiving step of receiving vehicle information indicating a plurality of device states of a vehicle communicable with an electronic key, and abnormality information indicating that the device state is abnormal is vehicle information. And a display control step for controlling to display an image relating to the abnormality information on the display unit when it is included. In addition, a notification step of performing notification when abnormality information is included is included. For this reason, the state of the vehicle at the time of parking or the like can be notified to the user.

  According to the present invention, at the time of parking or the like, it is determined for each in-vehicle device whether or not the user is in a state suitable for leaving the vehicle, and notification regarding the in-vehicle device that is not in a suitable state is performed. For this reason, it is possible to avoid forgetting locking or forgetting to close the electric window by the user, and to improve security. Moreover, since it can avoid that a vehicle will be in the state which a user does not intend while a user is away from a vehicle, it is advantageous at the operational aspect.

Embodiments of the present invention will be described below with reference to the drawings. In addition, embodiment shown here is an example and this invention is not limited to embodiment shown here.
<1. System configuration>
FIG. 3 is a schematic diagram showing a vehicle 100 and an electronic key 200 according to an embodiment of the present invention. As shown in FIG. 3, the range in which vehicle 100 transmits radio waves can be broadly divided into two ranges: a vehicle interior detection range and a vehicle exterior detection range. The vehicle interior detection range is a range in which radio waves transmitted from the vehicle interior transmitter (= first transmitter) can be received. The vehicle exterior detection range is a range in which radio waves transmitted by the vehicle exterior transmitter (= second transmission unit) can be received.

A plurality of out-of-vehicle transmitters are provided in the vehicle 100 so that the front, rear, left and right ranges of the vehicle 100 can be covered. A user (= driver) holding the electronic key 200 can receive vehicle information using the electronic key 200 in each of these ranges. The vehicle information to be transmitted differs between the vehicle interior transmitter and the vehicle interior transmitter. That is, the received vehicle information varies depending on the position where the user receives radio waves.
<2. About vehicle configuration>
FIG. 1 is a block diagram illustrating a part of an in-vehicle device provided in a vehicle 100 according to an embodiment of the present invention. The in-vehicle devices are roughly classified into a group of devices (hereinafter referred to as “vehicle-side devices”) controlled by the first control unit 111 in relation to driving and driving of the vehicle, and a second control unit 121. It is divided into a group of devices (hereinafter referred to as “electronic key side device”) controlled by (= calling control unit).

  The vehicle-side device includes at least a parking brake 112 (= brake), an electric window 113, an ETC card 114, an interior light 115, and a door 116. The electronic key side device includes at least a processing device 122 corresponding to the above-described vehicle interior transmitter, a vehicle interior transmitter 123, and an antenna 124. Further, the electronic key side device can include a processing device 125, a vehicle exterior transmitter 126, and an antenna 127, which correspond to the vehicle exterior transmitter described above. Note that the vehicle side devices can communicate with each other, for example, by connecting each device via a vehicle-mounted local area network.

  The 1st control part 111 acquires the state of each apparatus transmitted by the vehicle-mounted local area network etc., and produces | generates vehicle information. For example, the valid / invalid state of the parking brake 112, the open / close state of the electric window 113, the insertion state of the ETC card 114, and the like are acquired, and first vehicle information is generated. Moreover, the lighting state of the interior lamp 115, the open / close state of the door 116, and the like are acquired, and second vehicle information is generated. Then, the generated vehicle information is given to the second control unit 121.

  The second control unit 121 transmits radio waves including the first vehicle information using the processing device 122, the vehicle interior transmission unit 123, and the antenna 124. In addition, radio waves including the second vehicle information are transmitted using the processing device 125, the vehicle exterior transmission unit 126, and the antenna 127.

The radio wave transmitted from the antenna 124 and the radio wave transmitted from the antenna 127 can be distinguished from each other on the receiving side by, for example, different frequency radio waves. It has become.
<3. Electronic key device configuration>
FIG. 2 is a block diagram showing the internal configuration of the electronic key 200. A radio wave transmitted from the vehicle 100 is received by the antenna 212 (= wireless receiving unit) and converted into a signal. The signal is sent to the indoor reception unit 213 (= wireless reception unit) or the outdoor reception unit 214 (= wireless reception unit), and is converted into first vehicle information or second vehicle information. Whether the signal conversion is performed by the indoor reception unit 213 or the outdoor reception unit 214 is determined based on the frequency of the radio wave received by the antenna 212, for example.

  The control unit 211 (= display control unit) is a central processing unit for performing overall control of each device of the electronic key 200. The control unit 211 analyzes the first vehicle information or the second vehicle information obtained by the indoor reception unit 213 or the outdoor reception unit 214. Then, it is determined whether or not information (= abnormal information) indicating that there is an in-vehicle device in an undesirable state (hereinafter referred to as “forgotten state”) when the user leaves the vehicle is included in the vehicle information. Do.

  Specifically, for example, when the parking brake 112 is in an invalid state, the electric window 113 is in an open state, the ETC card 114 is in an inserted state, the interior light 115 is in a lighting state, the door 116 is opened. When it is in a state, it is determined as a forgotten state. When there is abnormality information indicating the in-vehicle device in the forgotten state, an image corresponding to the in-vehicle device in the forgoing state is displayed on the display unit 215 using the display driver 216.

  For example, as shown in FIG. 4, an icon 291 indicating forgetting to close the electric window 113, an icon 292 indicating forgetting to remove the ETC card 114, and the like are displayed on the display unit 215. Thereby, it is possible to notify the in-vehicle device in a forgotten state by a method that is easy for the user to intuitively understand.

  In addition, since the criteria for determining whether or not each on-vehicle device is in a forgotten state is different for each device, for example, information indicating the criterion for each device is recorded in a recording medium such as a memory (not shown) in advance. Shall be kept. Or the form which incorporates beforehand the data used as a judgment standard in the control program which the control part 211 performs may be sufficient.

When there is a forgotten vehicle-mounted device, the control unit 211 instructs the warning sound generation unit 217 (= notification unit) to output a warning sound. At the same time, the vibration unit 218 (= notification unit) is instructed to vibrate the electronic key 200. Accordingly, for example, in a situation where it is difficult for the user to visually recognize the display unit 215 such as in the dark, it is possible to notify the user that there is a forgotten vehicle-mounted device.
<4. About notification processing>
Here, an outline of the notification process performed by the electronic key system according to the embodiment of the present invention will be described with reference to the flowcharts of FIGS. 5 and 6.

  First, the processing on the vehicle 100 side will be described with reference to the processing flow shown in FIG. The process shown in FIG. 5 is started when the first control unit 111 detects that the power source of the vehicle 100 is in a predetermined state, for example, that the ACC power source is turned off.

  After the start of this process, in step S110, the first control unit 111 acquires a predetermined state of the in-vehicle device, for example, the state of the parking brake 112 to the ETC card 114, and generates first vehicle information. Then, the generated first vehicle information is given to the second control unit 121.

  Next, the 2nd control part 121 transmits the electromagnetic wave containing 1st vehicle information from the antenna 124 in step S120. Further, the first control unit 111 determines whether or not the locking of the door 116 is detected in step S130. When locking is not detected, it transfers to step S110 again.

  When locking is detected, the 1st control part 111 acquires the state of a predetermined vehicle-mounted apparatus, for example, the state of the interior lamp 115 and the door 116, and produces | generates 2nd vehicle information in step S140. Then, the generated second vehicle information is given to the second control unit 121.

  Next, the 2nd control part 121 transmits the electromagnetic wave containing 2nd vehicle information from the antenna 127 in step S150. Further, in step S160, second control unit 121 determines whether or not a predetermined time has elapsed since the start of transmission of radio waves including second vehicle information. If the predetermined time has not elapsed, the process proceeds to step S140 again.

  If the predetermined time has elapsed, after stopping the transmission of radio waves in step S170, this process is terminated. The transmission stop of the radio wave including the first vehicle information may be at the same timing as the radio wave including the second vehicle information, or may be at a different timing.

  Next, the processing on the electronic key 200 side will be described with reference to the processing flow shown in FIG. The process shown in FIG. 6 can be started at an arbitrary timing while the electronic key 200 is being driven.

  After the start of this process, in step S210, the control unit 211 determines whether or not a predetermined radio wave transmitted from the vehicle 100 has been received by the antenna 212. If not received, the process again proceeds to step S210, and monitoring is continued. When receiving the radio wave, in step S220, the control unit 211 converts the received radio wave using the indoor reception unit 213 or the outdoor reception unit 214, and acquires vehicle information.

  Next, in step S230, the control unit 211 determines which of the indoor reception unit 213 and the outdoor reception unit 214 has converted the received radio wave. When it is performed by the indoor reception unit 213, the control unit 211 performs analysis by regarding the information obtained by the conversion as first vehicle information in step S240. Then, it is determined whether or not abnormality information is included in the first vehicle information.

  Based on the determination result, the process branches in step S250. If the abnormality information is not included, it is not necessary to perform notification, and the process proceeds to step S210 again. When abnormality information is included, the control unit 211 proceeds to step S260 and controls the display driver 216 to display an icon corresponding to the in-vehicle device in the forgotten state on the display unit 215. Thereby, for example, the icon shown in FIG. 4 is displayed.

  Further, in step S270, the control unit 211 controls the warning sound generation unit 217 and the vibration unit 218 to output a warning sound and generate vibration for a predetermined time. Thereafter, the process proceeds to step S210 again to continuously monitor the received radio wave.

  Returning to step S230 and explaining, when the conversion of the received radio wave is performed by the outdoor reception unit 214, the control unit 211 regards the information obtained by the conversion as the second vehicle information in step S245, Analyze. Then, it is determined whether or not abnormality information is included in the second vehicle information. Based on the determination result, the process branches in step S250. In addition, since it is the same as that of the case of 1st vehicle information about subsequent processes, description is abbreviate | omitted.

  According to the present embodiment described above, when the user leaves the vehicle 100, it is determined whether or not there is an operation forgetting about the in-vehicle device, and when there is a forgotten device, the electronic key 200 is used for notification. I do. As a result, for example, a state where the door 116 is locked but the electric window 113 is open can be avoided, and security can be improved.

  Moreover, it can avoid that the vehicle 100 will be in the state which a user does not intend. For example, when the user turns off the ACC power source, there is a possibility that the interior light 115 is manually turned on and the vehicle is left forgetting to turn it off. When this state continues for a long time, the battery runs out, but according to the present invention, such a situation can be avoided.

Further, according to the present embodiment, an icon for a vehicle-mounted device that is likely to be forgotten is prepared in advance, and the icon is displayed only for the vehicle-mounted device in which forgetting occurs. For this reason, if there is no in-vehicle device in the forgotten state, nothing is displayed on the display unit 215, so that it is possible to prevent a user's mistake in viewing.
[Other embodiments]
The present invention has been described with reference to the preferred embodiments and examples. However, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea. be able to.

Therefore, the present invention can also be applied to the following embodiments.
(A) In the above embodiment, the device state of the parking brake 112 to the door 116 is described as an example of the device state in which the electronic key 200 performs notification, but the notification processing of the present invention is performed for other device states. The form to apply may be sufficient. For example, it may be a form that targets apparatus states such as a hazard lamp, an electric sunroof, and a wiper.

  (B) In the above embodiment, the control unit 211 of the electronic key 200 determines whether or not each in-vehicle device is in a forgotten state. This is performed by the first control unit 111 or the second control of the vehicle 100. The form which the part 121 performs may be sufficient. In this case, for example, when generating vehicle information on the vehicle 100 side, it is determined whether or not there is an in-vehicle device in the forgotten state, and flag information or the like indicating the in-vehicle device in the forgoing state is added to the vehicle information. . The control unit 211 of the electronic key 200 refers to the flag information and displays an icon corresponding to the device for which the flag is valid (= the device in the forgotten state). Further, when the flag is valid, notification by voice and vibration is performed. Thereby, the processing on the electronic key 200 side can be simplified.

  (C) In the above embodiment, the radio wave including the first vehicle information is transmitted when the ACC power supply of the vehicle 100 is turned off. However, the radio wave may be transmitted at other timing.

  (D) In the above embodiment, the device configuration is such that the frequency of the radio wave transmitted from the antenna 124 and the frequency of the radio wave transmitted from the antenna 127 are different, but a mode of transmitting radio waves of the same frequency may be used. In this case, for example, identification information indicating which antenna is transmitted from the information included in the radio wave is included, and this identification information is analyzed on the receiving side to identify the transmission source antenna. Alternatively, the first vehicle information and the second vehicle information may be transmitted and received by a single transmitter and receiver without using a plurality of transmitters and receivers.

  (E) In the above embodiment, the first control unit 111 controls the vehicle-side device and the second control unit 121 controls the electronic key-side device, but one control unit controls both devices. But you can. Each control unit may be realized by a plurality of circuits.

It is a block diagram which shows the apparatus structure of the vehicle which concerns on one Embodiment of this invention. It is a block diagram which shows the apparatus structure of the electronic key which concerns on one Embodiment of this invention. It is a schematic diagram which shows the electronic key system which concerns on one Embodiment of this invention. It is a screen figure which shows an example of the display part of the electronic key which concerns on one Embodiment of an electronic key. It is a flowchart which shows the alerting | reporting process by the side of the vehicle which concerns on one Embodiment of this invention. It is a flowchart which shows the alerting | reporting process by the side of the electronic key which concerns on one Embodiment of this invention.

Explanation of symbols

100 Vehicle 111 First control unit 112 Parking brake (brake)
113 Electric window 114 ETC card 115 Interior light 116 Door 121 Second control unit (transmission control unit)
122 Processing device (first transmitter)
123 Car interior transmission section (first transmission section)
124 Antenna (first transmitter)
125 processor (second transmitter)
126 Out-cabin transmitter (second transmitter)
127 Antenna (second transmitter)
200 Electronic Key 211 Control Unit (Display Control Unit)
212 Antenna (wireless receiver)
213 Indoor receiver (wireless receiver)
214 Outdoor receiver (wireless receiver)
215 Display unit 216 Display driver 217 Warning sound generation unit (notification unit)
218 Vibration unit (notification unit)

Claims (12)

In an electronic key system including an electronic key having a radio receiving unit and a display unit for receiving radio waves, and an in-vehicle apparatus having a radio transmitting unit for transmitting radio waves,
The vehicle-mounted device includes a transmission control unit that controls the wireless transmission unit to transmit radio waves including vehicle information indicating a plurality of device states of a vehicle equipped with the vehicle-mounted device,
The electronic key system comprising: a display control unit that controls the display unit based on the vehicle information included in the radio wave received by the wireless reception unit. The display control unit determines whether or not abnormality information indicating that the device state is abnormal is included in the vehicle information, and if included, an image related to the abnormality information is displayed on the display unit. Control to display,
The electronic key system according to claim 1. The electronic key includes a notification unit that performs notification when the abnormality information is included in the vehicle information.
The electronic key system according to claim 2. The transmission control unit transmits a radio wave including first vehicle information which is a part of the vehicle information when a power source included in the vehicle is predetermined, and a door included in the vehicle is locked. The radio transmission unit is controlled to transmit radio waves including second vehicle information that is part of the vehicle information.
The electronic key system according to claim 1. The wireless transmission unit includes a first transmission unit that transmits radio waves for in-vehicle use, and a second transmission unit that transmits radio waves for use outside the vehicle,
The transmission control unit controls the first transmission unit to transmit a radio wave including the first vehicle information, and controls the second transmission unit to transmit a radio wave including the second vehicle information;
The electronic key system according to claim 4. The first vehicle information includes information indicating a window opening / closing state, a brake state, or an ETC (Electronic Toll Collection System) card insertion state of the vehicle,
The second vehicle information includes information indicating an interior light state of the vehicle or a door opening / closing state.
The electronic key system according to claim 4. In an electronic key that includes a radio reception unit and a display unit that receive radio waves, and communicates with a vehicle-mounted device by the radio reception unit,
A display control unit configured to control the display unit based on the vehicle information when the wireless reception unit receives radio waves including vehicle information indicating a plurality of device states of the vehicle equipped with the in-vehicle device; An electronic key characterized by The display control unit determines whether or not abnormality information indicating that the device state is abnormal is included in the vehicle information, and if included, an image related to the abnormality information is displayed on the display unit. Control to display,
The electronic key according to claim 7. A notification unit for performing notification when the vehicle information includes the abnormality information;
The electronic key according to claim 7. A wireless transmitter mounted on a vehicle for transmitting radio waves,
A vehicle-mounted apparatus comprising: a transmission control unit that controls the wireless transmission unit to transmit radio waves including vehicle information indicating a plurality of device states of the vehicle;
The transmission control unit transmits a radio wave including first vehicle information which is a part of the vehicle information when a power source included in the vehicle is predetermined, and a door included in the vehicle is locked. In this case, the wireless transmission unit is controlled so as to transmit a radio wave including the second vehicle information which is a part of the vehicle information. The wireless transmission unit includes a first transmission unit that transmits radio waves for in-vehicle use, and a second transmission unit that transmits radio waves for use outside the vehicle,
The transmission control unit controls the first transmission unit to transmit a radio wave including the first vehicle information, and controls the second transmission unit to transmit a radio wave including the second vehicle information;
The in-vehicle device according to claim 10. A control method for controlling an electronic key provided with a display unit,
A receiving step of receiving vehicle information indicating a plurality of device states of the vehicle capable of communicating with the electronic key;
A display that determines whether or not abnormality information indicating that the device state is abnormal is included in the vehicle information, and controls to display an image related to the abnormality information on the display unit when it is included. Control steps;
A notification step of performing notification when the abnormality information is included in the vehicle information.

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