JP5050484B2 - Radio module with display function, electronic license plate, radio module main body status display method, and vehicle - Google Patents

Description

  The present invention provides a radio module with a display function including a radio module main body that operates using power supplied from a battery sealed in a casing as operating power, an electronic license plate attached to a vehicle, and the radio module main body. The present invention relates to a method for displaying a state and a vehicle provided with the electronic license plate.

  A radio wave module attached to a vehicle generally has a configuration in which vehicle information relating to a vehicle to be attached is stored and held based on electric power supplied from a battery sealed in a casing. This kind of radio module does not impair the appearance when attached to the current license plate, and does not hinder the visibility of the vehicle information (vehicle registration number) stamped on the current license plate. The size of the housing is reduced, and an antenna that transmits and receives radio waves, a storage device that stores vehicle information, a control device that controls the overall operation of the radio module, a battery, and the like are mounted in the reduced housing. Configured.

  By the way, the conventional radio wave module generally does not have a function of displaying the state of the radio wave module due to battery consumption. The fact is that it cannot be determined whether or not it is operating. Therefore, even when the radio wave module is intentionally removed from the vehicle and stopped functioning, there is a problem that it is difficult for the user to confirm that fact.

On the other hand, Patent Documents 1 and 2 below disclose an electronic tag with a display function in which a non-contact IC chip and a display device are integrated.
JP 2004-29259 A JP 2005-71143 A

  In the above-described Patent Documents 1 and 2, the power supply of the display device is mounted, and when the power is consumed, the contactless IC chip can maintain its original function. The display device cannot display the display information.

  On the other hand, in the radio module, it is necessary to ensure the original communication function (communication function with the roadside device) as the radio module, and at the same time, it is necessary to display the status of the radio module for the reason described above. However, even if the display devices described in Patent Documents 1 and 2 described above are provided integrally with the radio wave module, it is difficult to display the status of the radio wave module when the power is consumed.

  Further, for example, a method of displaying the state of the radio wave module using display means such as an LED is conceivable. However, the radio wave module operates using power supplied from a battery sealed in a casing as operating power. In the above-described method, the capacity of the battery sealed in the casing is consumed to display the state of the radio wave module, which shortens the product life and the original function as the radio wave module. There is a problem that the communication function is also hindered.

  On the other hand, the current license plate has a configuration in which vehicle information (vehicle registration number) is engraved on a plate made of, for example, a metal material as described above, and therefore needs to be pre-processed before being attached to the vehicle. As a matter of fact, information that can be obtained by visually recognizing the current license plate by a user or an unspecified number of people is limited to the vehicle information. However, in this case, since it needs to be pre-processed before being attached to the vehicle, there is a problem that it takes a lot of labor for inventory management, and there are many users and unspecified people who want to acquire information other than vehicle information. There is a problem that it is not possible to respond to the request.

  The present invention has been made in view of the above-described circumstances, and a first object of the present invention is to avoid shortening the product life or impairing the original communication function as a radio wave module. It is still another object of the present invention to provide a radio module with a display function, an electronic license plate, and a radio wave module status display method capable of appropriately notifying the user of the radio module status by displaying the radio module status. In addition, the second object is to eliminate the great effort required for inventory management of the current license plate, and to provide useful information other than vehicle information to users and an unspecified number of people. It is to provide an electronic license plate and a vehicle.

  According to the radio module with a display function according to claim 1, when the radio module main body changes state when power is supplied from the battery of the radio module main body to the display means, the display means Since it is configured to switch the display information indicating the state of the radio module main body using the power supplied from the battery or the battery of the radio module main body charged to the rechargeable battery and the power supplied from the rechargeable battery as the operating power, The state of the radio module main body can be appropriately notified to the user.

In this case, since the display means requires the operating power to switch the display information, it does not require the operating power to maintain the display information. The capacity of the battery sealed in the body is not consumed, and it is possible to prevent the product life from being shortened or the original communication function as the radio wave module from being hindered.
Further, when the remaining battery capacity of the radio module main body decreases to the threshold value, the display means displays the display information indicating that the remaining battery capacity has decreased to the threshold value from the display information before the remaining battery capacity has decreased to the threshold value. Since switching is configured, it is possible to appropriately notify the user that the remaining capacity of the battery has decreased to a threshold value (so-called battery shortage is imminent).
Also, whether the remaining battery capacity of the radio module main body has been reduced to the threshold, the number of times the radio module main body has been activated, and the number of times the radio module main body has successfully completed communication based on the battery voltage information and ambient temperature information , the number of times the radio module body has finished their communication abnormal end, configured radio module number and the radio module body main body has started incorrectly determined by adding the determined material also at least one of the accumulated time that started Therefore, it is possible to determine whether or not the remaining capacity of the battery has decreased to the threshold in consideration of the activation state of the radio module main body in addition to the fluctuation of the battery voltage depending on the temperature. It can be more accurately determined whether or not the capacity has decreased to the threshold value.

  According to the radio module with a display function described in claim 2, when the radio module main body changes state when power is supplied from the battery of the radio module main body to the display means, the display means Since the display information indicating the state of the radio module main body is switched using the power supplied from the battery or the power supplied from the auxiliary battery as the operating power, the same as described in claim 1 above. Thus, it is possible to appropriately notify the user of the state of the radio module main body.

Also in this case, since the display means requires the operating power to switch the display information, it does not require the operating power to maintain the display information. Therefore, the capacity of the battery sealed in the housing is not consumed to maintain the display of the state of the radio module body, shortening the product life or hindering the original communication function of the radio module. It can be avoided in advance.
Further, when the remaining battery capacity of the radio module main body decreases to the threshold value, the display means displays the display information indicating that the remaining battery capacity has decreased to the threshold value from the display information before the remaining battery capacity has decreased to the threshold value. Since switching is configured, it is possible to appropriately notify the user that the remaining capacity of the battery has decreased to a threshold value (so-called battery shortage is imminent).
Also, whether the remaining battery capacity of the radio module main body has been reduced to the threshold, the number of times the radio module main body has been activated, and the number of times the radio module main body has successfully completed communication based on the battery voltage information and ambient temperature information , the number of times the radio module body has finished their communication abnormal end, configured radio module number and the radio module body main body has started incorrectly determined by adding the determined material also at least one of the accumulated time that started Therefore, it is possible to determine whether or not the remaining capacity of the battery has decreased to the threshold in consideration of the activation state of the radio module main body in addition to the fluctuation of the battery voltage depending on the temperature. It can be more accurately determined whether or not the capacity has decreased to the threshold value.

According to the radio module with a display function described in claim 3 , when power is not supplied from the battery of the radio module main body to the display device due to the state of the radio module main body being switched, the display means Since the display information indicating the state of the radio module main body is switched using the power charged from the rechargeable battery and supplied from the rechargeable battery as the operating power, for example, from the battery of the radio module main body due to some malfunction Even when power is not supplied to the display means, the state of the radio module main body can be appropriately notified to the user.

According to the radio module with a display function described in claim 4 , when power is not supplied from the battery of the radio module main body to the display device due to the state of the radio module main body being switched, the display means is supplied from the auxiliary battery. Since the display information indicating the state of the radio module main body is displayed and switched using the electric power as the operating power, in the same manner as described in claim 3 above, for example, due to some malfunction, the radio module main body Even when power is no longer supplied from the battery to the display means, it is possible to appropriately notify the user of the state of the radio module main body.

According to the radio module with a display function described in claim 5 , when the radio module main body is removed from the display means, the display means uses the radio wave module from the display information before the radio module main body is removed from the display means. Since the display is switched to display information indicating that the main body has been removed from the display means, it is possible to appropriately notify the user that the radio wave module main body has been removed from the display device.

According to the display function radio module according to claim 6, invalid detached from the radio module body that is invalidated is removed from the same display unit is mounted on the display means or another display means, When the converted radio module main body is attached to the display means, the display means is configured not to switch the display information, so the display means displays the radio module main body even though it is attached to the display means. by not display switching information, be properly inform the user that the radio wave module body attached to the display unit is a radio module body that is invalidated is removed from the same display unit or another display means it can. Further, it is possible to avoid impersonation by replacing the radio module main body, and it is possible to prevent abuse.

According to the display function radio module according to claim 7, capable constitutes mounted on a base plate which is formed a display means Na members plates comparable size, the radio module body is in a normal communicable state Since the display means is configured to display and maintain the vehicle information stored in the radio module main body as display information, the radio module can be maintained by displaying and maintaining the vehicle information stored in the radio module main body as display information. It is possible to appropriately notify the user that the main body is in a state where normal communication is possible. Further, by determining whether the vehicle information displayed and maintained as display information is correct or not, it is possible to determine whether the radio module main body is correct (whether it is legitimate) or not. It can be determined whether or not.

According to the radio module with a display function according to claim 8, when the radio module main body is in a state where normal communication is possible, the display means displays the vehicle registration number among the vehicle information stored in the radio module main body. and then, is displayed maintained as, can have the same function as Na members plates, it is also possible to run a general road with a vehicle mounted radio wave module with display function.

According to claim 9 with a display function radio module described, since it is configured to be attached to the burner members plates so as not to hide the vehicle information that has been stamped display means Na members plates, are displayed in the burner members plates By displaying the state of the radio module main body without hiding the existing vehicle information, it is possible to appropriately notify the user of the status of the radio module main body. Moreover, by effectively using the Na members plates, it is possible to suppress the installation cost, it is possible to increase the feasibility of the introduction. Furthermore, it is also possible to confirm the identity of the vehicle information and the Na members plates stored in the radio module body.

According to the electronic license plate according to claim 10, battery base plate which is formed on the burner members plates comparable size, the rechargeable battery and a radio module body is built, power is being supplied to the display unit from the battery When the radio module main body changes state, the display means displays the state of the module main body using the power supplied from the battery or the power supplied from the battery to the rechargeable battery as the operating power. Since the information is displayed and switched, it is possible to appropriately inform the user of the state of the radio module main body in the same manner as described in the first aspect.

Also in this case, since the display means requires the operating power to switch the display information, it does not require the operating power to maintain the display information. Therefore, the capacity of the battery sealed in the housing is not consumed to maintain the display of the state of the radio module body, shortening the product life or hindering the original communication function of the radio module. It can be avoided in advance. In this case, since the radio module main body is built in the base plate, the radio module main body does not become a protrusion protruding from the base plate, and the radio module main body can be protected from dirt and damage, and also looks good. it can be improved, moreover, it is possible to realize a configuration without discomfort compared to na members plates.
Further, when the remaining capacity of the battery decreases to the threshold value, the display means switches the display from display information before the remaining capacity of the battery decreases to the threshold value to display information indicating that the remaining capacity of the battery has decreased to the threshold value. Since it comprised, it can notify to a user appropriately that the remaining capacity of a battery fell to the threshold value similarly to what was described in Claim 1 mentioned above.
In addition, the battery voltage information and ambient temperature information indicate whether the remaining battery capacity has dropped to the threshold, the number of times the radio module body has started, the number of times the radio module body has successfully completed communication, the radio module body number but that finished their communication abnormal end, the radio module number and the radio module body main body is activated by mistake is configured to determine in addition as determined material also at least one of the accumulated time that started, the In the same manner as described in claim 1, whether or not the remaining battery capacity has fallen to the threshold in consideration of the activation state of the radio module main body in addition to the battery voltage changing depending on the temperature. It is possible to determine whether or not the remaining capacity of the battery has decreased to the threshold value.

According to the electronic license plate according to claim 11, battery base plate which is formed on the burner members plates comparable size, the auxiliary battery and a radio module body is incorporated, power is being supplied to the display unit from the battery When the radio module main body switches the state, the display means is configured to display and switch display information indicating the state of the module main body using the power supplied from the battery or the power supplied from the auxiliary battery as the operating power. Therefore, in the same manner as described in the first aspect, it is possible to appropriately notify the user of the state of the radio module main body.

Also in this case, since the display means requires the operating power to switch the display information, it does not require the operating power to maintain the display information. Therefore, the capacity of the battery sealed in the housing is not consumed to maintain the display of the state of the radio module body, shortening the product life or hindering the original communication function of the radio module. It can be avoided in advance. Also in this case, since the radio module main body is built in the base plate, the radio module main body does not become a projection protruding from the base plate in the same manner as described in claim 10 above, and body can improve the appearance with a can be protected from contamination and damage, moreover, it is possible to realize a configuration without discomfort compared to na members plates.
Further, when the remaining capacity of the battery decreases to the threshold value, the display means switches the display from display information before the remaining capacity of the battery decreases to the threshold value to display information indicating that the remaining capacity of the battery has decreased to the threshold value. Since it comprised, it can notify to a user appropriately that the remaining capacity of a battery fell to the threshold value similarly to what was described in Claim 1 mentioned above.
In addition, the battery voltage information and ambient temperature information indicate whether the remaining battery capacity has dropped to the threshold, the number of times the radio module body has started, the number of times the radio module body has successfully completed communication, the radio module body number but that finished their communication abnormal end, the radio module number and the radio module body main body is activated by mistake is configured to determine in addition as determined material also at least one of the accumulated time that started, the In the same manner as described in claim 1, whether or not the remaining battery capacity has fallen to the threshold in consideration of the activation state of the radio module main body in addition to the battery voltage changing depending on the temperature. It is possible to determine whether or not the remaining capacity of the battery has decreased to the threshold value.

According to the electronic license plate of claim 12 , when the display is removed from the vehicle, the display means switches the display information from the display information before being removed from the vehicle to the display information indicating that the display has been removed from the vehicle. Since it comprised so, it can notify a user appropriately that it removed from the vehicle.

According to the electronic license plate according to claim 13, mounted on the vehicle after being invalidated removed when mounted in the vehicle, or from another vehicle after being invalidated removed from the same vehicle Since the display means is configured not to switch the display information, the display means is attached to the vehicle by not switching the display information even though the electronic license plate is attached to the vehicle. electronic license plate can properly inform the user that an electronic license plate disabled been removed from the same vehicle or another vehicle. In addition, impersonation by replacing the electronic license plate can be avoided in advance, and misuse can also be prevented.

According to the electronic license plate of claim 14 , the display means is configured to display and maintain the vehicle information stored in the radio module main body as display information when the radio module main body is in a normally communicable state. Therefore, in the same manner as described in claim 7 , the vehicle information stored in the radio module main body is displayed and maintained as display information, so that the radio module main body is in a state in which normal communication is possible. Users can be notified appropriately. Further, by determining whether the vehicle information displayed and maintained as display information is correct or not, it is possible to determine whether the radio module main body is correct or not, and whether or not the radio module main body is used illegally. .

According to the electronic license plate described in claim 15, when the radio module main body is in a state in which normal communication is possible, the display means displays the vehicle registration number as the display information among the vehicle information stored in the radio module main body. since it is configured to maintain, in a manner similar to that described in claim 8 as described above, can have the same function as Na members plates, running a general road with the vehicle mounted electronic license plate You can also

According to the radio module with a display function described in claim 16 , when the radio module main body changes state, the display means indicates the state of the radio module main body in conjunction with the physical state change means switching the physical state. Since the display information is irreversibly switched, the state of the radio module main body can be appropriately notified to the user in the same manner as described in the first aspect.

In this case, since the display means irreversibly switches the display information, the display means only needs to consume power to switch the display information. Thus, in the same manner as described in claim 1, the product life It can be avoided in advance that the communication function is reduced or the original communication function as a radio wave module is hindered. Also, in this case, since the display means is provided integrally with the radio module main body, the radio module main body and the display means can be removed separately even when the radio module is removed and replaced by, for example, battery replacement. Therefore, the radio wave module main body and the display means can be integrally removed and replaced, and the removal work and the replacement work can be easily performed.
In addition, when the remaining battery capacity of the radio module main body decreases to a threshold value, the display unit irreversibly switches the display information indicating the radio module main unit state in conjunction with the physical state switching unit switching the physical state. Since it comprised so, it can notify to a user appropriately that the remaining capacity of a battery fell to the threshold value similarly to what was described in Claim 1 mentioned above.
Also, whether the remaining battery capacity of the radio module main body has been reduced to the threshold, the number of times the radio module main body has been activated, and the number of times the radio module main body has successfully completed communication based on the battery voltage information and ambient temperature information , the number of times the radio module body has finished their communication abnormal end, configured radio module number and the radio module body main body has started incorrectly determined by adding the determined material also at least one of the accumulated time that started Therefore, it is possible to determine whether or not the remaining capacity of the battery has decreased to the threshold in consideration of the activation state of the radio module main body in addition to the fluctuation of the battery voltage depending on the temperature. It can be more accurately determined whether or not the capacity has decreased to the threshold value.

According to the radio module with a display function described in claim 17 , when the radio module main body is removed from the license plate, the display means is linked to the radio module main body in conjunction with the physical state switching means switching the physical state. Since the display information representing the state of the display is irreversibly switched, it is possible to appropriately notify the user that the information has been removed from the license plate.

According to the radio module with a display function described in claim 18 , the physical state switching means varies the degree of switching of the physical state according to the contents of the radio module main body switching state, and the display means is the physical state switching means. Since the degree to which the display state is changed in conjunction with changing the degree to which the physical state is changed, the radio wave module body can distinguish the contents of the state change and appropriately notify the user. For example, it is possible to appropriately notify the user by distinguishing between the fact that the remaining capacity of the battery has decreased to the threshold value and the fact that the battery has been removed from the license plate.

According to the radio module with a display function according to claim 19 , the physical state switching means emits light as an operation of switching the physical state, and the display means displays in response to the light emitted from the physical state switching means. Since the information is irreversibly displayed and switched, it is possible to appropriately notify the user of the state of the radio module main body using the change of light.

According to the radio module with a display function described in claim 20 , the display means is provided with the ultraviolet blocking member that blocks ultraviolet rays on the outer surface portion thereof, and therefore malfunctions due to the influence of sunlight. It can be avoided in advance.

According to the radio module with a display function described in claim 21 , the physical state switching unit emits heat as the switching operation, and the display unit irreversibly displays the display information in response to the heat released from the physical state switching unit. Therefore, the user can be informed of the state of the radio wave module body appropriately using the change in heat.

According to the radio module with a display function described in claim 22 , the physical state switching means generates magnetism as the switching operation, and the display means irreversibly displays the display information in response to the magnetism generated from the physical state switching means. Therefore, the state of the radio wave module main body can be appropriately notified to the user using the change in magnetism.

According to the state display method of the radio module main body according to claim 23 , the electric power supplied from the battery sealed in the housing is supplied from the battery of the radio module main body to the radio module main body that operates as the operating power. A radio wave module comprising a rechargeable battery that charges and discharges the electric power that is used, and that includes display means having a property that does not require operating power to display and maintain display information while requiring display power to switch display information If power is supplied from the battery of the main unit to the display means and the radio module main body changes state, the display means is charged from the power supplied from the battery of the radio module main body or from the battery of the radio module main body to the rechargeable battery. Since the display information indicating the state of the radio module main body is displayed and switched using the power supplied from the rechargeable battery as the operating power, Noted in the same manner as that described in claim 1, the state of the radio module body can be properly inform the user.

Also in this case, since the display means requires the operating power to switch the display information, it does not require the operating power to maintain the display information. Therefore, the capacity of the battery sealed in the housing is not consumed to maintain the display of the state of the radio module body, shortening the product life or hindering the original communication function of the radio module. It can be avoided in advance.
Further, when the remaining battery capacity of the radio module main body decreases to the threshold value, the display means displays the display information indicating that the remaining battery capacity has decreased to the threshold value from the display information before the remaining battery capacity has decreased to the threshold value. Since switching is configured, it is possible to appropriately notify the user that the remaining capacity of the battery has decreased to a threshold value (so-called battery shortage is imminent).
Also, whether the remaining battery capacity of the radio module main body has been reduced to the threshold, the number of times the radio module main body has been activated, and the number of times the radio module main body has successfully completed communication based on the battery voltage information and ambient temperature information , the number of times the radio module body has finished their communication abnormal end, configured radio module number and the radio module body main body has started incorrectly determined by adding the determined material also at least one of the accumulated time that started Therefore, it is possible to determine whether or not the remaining capacity of the battery has decreased to the threshold in consideration of the activation state of the radio module main body in addition to the fluctuation of the battery voltage depending on the temperature. It can be more accurately determined whether or not the capacity has decreased to the threshold value.

According to the state display method of the radio module main body according to claim 24 , the radio module main body that operates using the power supplied from the battery sealed in the casing as the operating power is provided with the auxiliary battery and the display information. When display means having the property of not requiring operating power to maintain display information while maintaining display information is provided and power is supplied from the battery of the radio module main body to the display means When the radio module main body switches the state, the display means switches the display information indicating the radio module main body status using the power supplied from the battery of the radio module main body or the power supplied from the auxiliary battery as the operating power. In the same manner as described in claim 1, it is possible to appropriately inform the user of the state of the radio module main body. That.

Also in this case, since the display means requires the operating power to switch the display information, it does not require the operating power to maintain the display information. Therefore, the capacity of the battery sealed in the housing is not consumed to maintain the display of the state of the radio module body, shortening the product life or hindering the original communication function of the radio module. It can be avoided in advance.
Further, when the remaining battery capacity of the radio module main body decreases to the threshold value, the display means displays the display information indicating that the remaining battery capacity has decreased to the threshold value from the display information before the remaining battery capacity has decreased to the threshold value. Since switching is configured, it is possible to appropriately notify the user that the remaining capacity of the battery has decreased to a threshold value (so-called battery shortage is imminent).
Also, whether the remaining battery capacity of the radio module main body has been reduced to the threshold, the number of times the radio module main body has been activated, and the number of times the radio module main body has successfully completed communication based on the battery voltage information and ambient temperature information , the number of times the radio module body has finished their communication abnormal end, configured radio module number and the radio module body main body has started incorrectly determined by adding the determined material also at least one of the accumulated time that started Therefore, it is possible to determine whether or not the remaining capacity of the battery has decreased to the threshold in consideration of the activation state of the radio module main body in addition to the fluctuation of the battery voltage depending on the temperature. It can be more accurately determined whether or not the capacity has decreased to the threshold value.

According to the state display method of the radio module main body according to claim 25 , the power supplied from the battery is supplied to the radio module main body that operates using the power supplied from the battery sealed in the housing as the operating power. A physical state switching means for switching the physical state as operating power and a display means are integrally provided in the radio module main body, and when the radio module main body switches the state, the physical state switching means displays in conjunction with the switching of the physical state. Since the means switches the display information irreversibly, it is possible to appropriately notify the user of the state of the radio module main body in the same manner as described in the first aspect.

Also in this case, since the display means switches the display information irreversibly, the display means only needs power consumption to switch the display information. It is possible to avoid shortening the service life or impairing the original communication function of the radio module, and even if the radio module is removed and replaced by replacing the battery, for example, There is no need to separately remove and replace the display means, and the radio wave module main body and the display means can be integrally removed and replaced, so that the removal work and the replacement work can be easily performed.
Further, when the remaining battery capacity of the radio module main body decreases to the threshold value, the display means displays the display information indicating that the remaining battery capacity has decreased to the threshold value from the display information before the remaining battery capacity has decreased to the threshold value. Since switching is configured, it is possible to appropriately notify the user that the remaining capacity of the battery has decreased to a threshold value (so-called battery shortage is imminent).
Also, whether the remaining battery capacity of the radio module main body has been reduced to the threshold, the number of times the radio module main body has been activated, and the number of times the radio module main body has successfully completed communication based on the battery voltage information and ambient temperature information , the number of times the radio module body has finished their communication abnormal end, configured radio module number and the radio module body main body has started incorrectly determined by adding the determined material also at least one of the accumulated time that started Therefore, it is possible to determine whether or not the remaining capacity of the battery has decreased to the threshold in consideration of the activation state of the radio module main body in addition to the fluctuation of the battery voltage depending on the temperature. It can be more accurately determined whether or not the capacity has decreased to the threshold value.

According to the electronic license plate described in claim 26 and the radio module with a display function described in claim 34 , the display means is configured to electronically switch display information. It is not necessary to be pre-processed, it can eliminate the great effort required for inventory management of current license plates, and the information that can be given to users and unspecified number of people is limited to vehicle information. In addition, useful information other than vehicle information can be given to users and a large number of unspecified people.

According to the electronic license plate as set forth in claim 27 and the radio module with a display function as set forth in claim 35 , the display means is configured to switch display information based on the information acquired by the vehicle behavior state acquisition means. Therefore, for example, by acquiring the behavior of the accelerator, the behavior of the brake, the behavior of the blinker, the behavior of the steering, etc., and by switching the display information based on the obtained information, the vehicle starts and stops, It is possible to notify pedestrians and subsequent vehicles in the surroundings of turning right and turning left.

According to the electronic license plate according to claim 28 and the radio module with a display function according to claim 36 , the display means includes information received by the external communication means from either the roadside device or the in-vehicle communication device of another vehicle. Since the display information is switched on the basis of the display information, for example, road-to-vehicle communication with a roadside device or vehicle-to-vehicle communication with an in-vehicle communication device of another vehicle is performed, so Receiving traffic information, accident information, etc. from one of the aircraft and switching the display information based on the received information to indicate that a traffic jam has occurred or that an accident has occurred Can let you know.

According to the electronic license plate described in claim 29 and the radio module with a display function described in claim 37 , the display means adds new display information to the display information displayed when the trigger for switching the display information is generated. Since the display information is superimposed and the display information is switched, the display information displayed so far can be continuously viewed as it is while the new display information is visually recognized.

According to the electronic license plate as set forth in claim 30 and the radio module with a display function as set forth in claim 38 , the display means displays the display density of the display information displayed when the trigger for switching the display information is generated. Since the display density of the display information that has been displayed so far can be reduced, new display information can be reliably viewed, while the display information that has been displayed so far is displayed. By increasing the display density of the displayed information, the display information that has been displayed so far can be surely viewed without failing to prevent the visibility of the new display information.

According to the electronic license plate described in claim 31 and the radio module with a display function described in claim 39 , the display means is configured to blink the new display information, so that the new display information is emphasized. Thus, new display information can be visually recognized more reliably.

According to the electronic license plate described in claim 32 and the radio module with a display function described in claim 40 , the display means is configured to scroll the new display information. Even if there is a large amount of information in a sentence such as “There is a traffic jam”, new display information with a large amount of the information can be more visually recognized.

According to the electronic license plate according to claim 33 and the radio module with a display function according to claim 41 , the display means is configured to display at least one of a font and a picture as display information. By displaying not only the vehicle registration number but also a pattern associated with the area of the vehicle registration number, a wide variety of information can be viewed.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 2 schematically shows the configuration of the radio module with a display function before being attached to the vehicle. The radio module with display function 1 includes a radio module main body 2 and a display device 3 (display means in the present invention).

  The radio wave module main body 2 has a structure in which a casing 4 is integrally formed with a substantially rectangular main body portion 5 and a mounting portion 6 for mounting on a vehicle. The main body portion 5 transmits and receives radio waves. Built-in antenna, a storage device for storing vehicle information such as a vehicle registration number, a control device for controlling the overall operation of the radio wave module body 2, for example, a tamper-resistant switch comprising a magnetic sensor and a battery (small battery) as a power source Are sealed. The attachment portion 6 is formed with an insertion hole portion 6a through which the attachment bolt 7 is inserted.

  The display device 3 is composed of, for example, electronic paper having the property that it does not require operating power to display and maintain the display information while it requires operating power to switch display information, and is equivalent to the current license plate. Is formed in the size of Note that the thickness of the electronic paper is about several tenths of a millimeter.

  A connection portion 8 to which the radio wave module main body 2 is connected (attached) is provided at a predetermined portion of the display device 3 (upper left corner in FIG. 2), and the radio wave module main body 2 is normally connected to the connection portion 8. In this state, the power supply terminal 9a and the signal terminal 9b (see FIG. 3) on the radio wave module body 2 side are connected to the power supply terminal 10a and the signal terminal 10b (see FIG. 3) on the display device 3 side (connection portion 8 side). Thus, power is supplied to the display device 3 from the battery built in the radio module main body 2, and the radio module main body 2 and the display device 3 can perform data communication between them. Further, the display device 3 has two insertion holes 3a and 3b through which the mounting bolts 7 and 11 are inserted.

  The base plate 12 is made of, for example, aluminum, and is formed in the same size as the current license plate in the same manner as the display device 3 described above. The base plate 12 is also formed with two insertion holes 12a and 12b through which the mounting bolts 7 and 11 are inserted.

  In the configuration described above, one of the mounting bolts 7 is inserted into the insertion hole 6a of the radio wave module body 2, the insertion hole 3a of the display device 3, and the insertion hole 12a of the base plate 12 through the seal 13 and fixed together. At the same time, the other mounting bolt 11 is inserted into the insertion hole portion 3b of the display device 3 and the insertion hole portion 12b of the base plate 12 and fixed together, whereby the radio wave module body 2, the display device 3, and the base plate 12 are integrated. It is attached to the vehicle and is attached to the vehicle as an electronic license plate. Further, after the radio wave module main body 2, the display device 3, and the base plate 12 are integrally attached to the vehicle, the mounting bolt 7 is sealed with a seal 14, so that the radio wave module main body 2 is not easily removed. Realized. In this way, the radio module 1 with a display function is used as the electronic number plate 32 in a state of being attached to the base plate 12.

  FIG. 3 is a functional block diagram showing the electrical configuration of the radio module main body 2 and the display device 3 described above. The radio wave module body 2 includes a control unit 15, a switch unit 16, an RF unit 17, a high-frequency oscillation unit 18, a non-volatile memory 19, a wake-up unit 20, a determination unit 21, a low-frequency oscillation unit 22, and a volatile memory as functional blocks. 23, a tamper-resistant switch 24, and a power supply unit 25.

  The power supply unit 25 supplies the power of the battery 26 to each functional block as operating power, and also supplies the power of the battery 26 to the rechargeable battery 27 of the display device 3 when the radio wave module body 2 is normally connected to the connection unit 8. Also supply. The determination unit 21 outputs the power supply switching signal to the power supply unit 25 to switch the supply state of the operating power from the power supply unit 25 to each functional block, and sets the operation mode of the radio wave module body 2 to the partial energization operation mode and energization. Switch between operation mode and communication operation mode.

  More specifically, the determination unit 21 operates the radio wave module body 2 in the partial energization operation mode by supplying operating power from the power supply unit 25 only to the tamper resistant switch 24, the determination unit 21, and the volatile memory 23. (See “a” in FIG. 3). In addition to supplying operating power from the power supply unit 25 to the tamper resistant switch 24, the determination unit 21 and the volatile memory 23, the determination unit 21 also supplies the switch unit 16, the wakeup unit 20 and the low frequency from the power supply unit 25. The radio wave module body 2 is operated in the energization operation mode by supplying operating power to the oscillating unit 22 (see “b” in FIG. 3). Further, the determination unit 21 supplies operating power from the power supply unit 25 to the tamper-resistant switch 24, the determination unit 21, the volatile memory 23, the switch unit 16, the wake-up unit 20, and the low-frequency oscillation unit 22, Operating power is supplied from the power supply unit 25 to the RF unit 17, the control unit 15, the high-frequency oscillation unit 18, and the nonvolatile memory 19, thereby operating the radio wave module body 2 in the communication operation mode (see “c” in FIG. 3). ).

  In the above-described configuration, the tamper resistant switch 24 is composed of an on / off switch. When the radio module main body 2 is in contact with the display device 3 or the base plate 12, the radio module main body 2 displays. In a state of being separated from the device 3 or the base plate 12, it is configured to be in an off state. Further, the volatile memory 23 is configured to function as a memory for storing backup information, security information, and the like backed up memory information stored in the nonvolatile memory 19 as memory information.

  In this case, the radio wave module body 2 performs the following operation in the partial energization operation mode. That is, when the radio module main body 2 is brought into contact with the display device 3 or the base plate 12, the tamper resistant switch 24 is switched from the off state to the on state and outputs an on signal to the determination unit 21. When the determination unit 21 receives an ON signal from the tamper resistant switch 24, the determination unit 21 outputs a power supply switching signal to the power supply unit 25, and shifts the radio wave module body 2 from the partial energization operation mode to the energization operation mode. Then, the determination unit 21 operates using the low-frequency clock supplied from the low-frequency oscillation unit 22 as the operation clock after shifting the operation mode of the radio module main body from the partial energization operation mode to the energization operation mode in this way. To do.

  Next, the radio module main body 2 performs the following operation in the energization operation mode. That is, when the wake-up unit 20 receives a radio signal from the outside via the antenna 28 and inputs it via the switch unit 16, the wake-up unit 20 detects the input radio signal by envelope detection and outputs a detection signal to the determination unit 21. The determination unit 21 operates using the low-frequency clock supplied from the low-frequency oscillation unit 22 as an operation clock. When the detection signal is input from the wake-up unit 20, the determination unit 21 processes the input detection signal and receives the radio wave received from the outside. When it is detected that the signal is a signal level or signal pattern defined in advance, a power supply switching signal is output to the power supply unit 25, and the radio module main body 2 is shifted from the energization operation mode to the communication operation mode. In this case, the determination unit 21 outputs an activation signal for activating the radio module main body 2 to the control unit 15.

  The radio module main body 2 performs the following operation in the communication operation mode. That is, when the activation signal is input from the determination unit 21, the control unit 15 is activated and operates using the high frequency clock supplied from the high frequency oscillation unit 18 as an operation clock, controls the communication operation of the RF unit 17, and is non-volatile. Data read / write of memory information to the memory 19 is controlled.

  When the determination unit 21 receives an off signal from the tamper resistant switch 24, the determination unit 21 outputs an abnormality detection signal to the control unit 15. When the control unit 15 receives the abnormality detection signal from the determination unit 21, the control unit 15 performs a tamper resistant operation. Specifically, the control unit 15 erases all or part of the memory information stored in the non-volatile memory 19 or the volatile memory 23 or forcibly prohibits the communication function of the RF unit 17. Stop or limit subsequent operations.

  Further, the control unit 15 inputs the battery voltage from the power supply unit 25 and analyzes the remaining capacity of the battery 26 to determine the remaining capacity of the battery 26. Further, when the control unit 15 detects that the signal received from the outside is an operation start signal, the control unit 15 starts operation thereafter and permits wireless communication with the roadside device (base station).

  The display device 3 includes a control unit 29, a display unit 30, a removal detection unit 31, and the rechargeable battery 27 described above as functional blocks. The control unit 29 inputs a display command signal from the control unit 15 of the radio module main body 2 by performing data communication with the control unit 15 of the radio module main body 2, and displays based on the input display command signal. The display information is displayed or deleted by the unit 30.

  The removal detection unit 31 determines whether the radio wave module main body 2 is normally connected to the power supply terminal 9a and the signal terminal 9b on the radio wave module main body 2 side and the power supply terminal 10a and the signal terminal 10b on the display device 3 side. When it is determined whether or not the radio module main body 2 has been removed from the display device 3 by determining whether or not the display device 3 has been removed, a removal detection signal is output to the control unit 29. The rechargeable battery 27 charges and discharges the power supplied from the battery 26 of the radio module main body 2 via the power supply unit 25, and discharges the charged power to thereby change the power of the battery 26 of the radio module main body 2. It is indirectly supplied to the functional block as operating power.

Next, the operation of the above configuration will be described with reference to FIG. In the present embodiment, it is assumed that the radio module main body 2 shifts from the partial energization operation mode to the energization operation mode when the radio wave module main body 2, the display device 3, and the base plate 12 are integrally attached to the vehicle. explain. Also here
(1) When the radio wave module main body 2 can perform normal communication (2) When the remaining capacity of the battery 26 decreases to a threshold value (3) The case where the radio wave module main body 2 is removed from the display device 3 will be sequentially described.

(1) When the radio wave module main body 2 is capable of normal communication When the radio wave module main body 2, the display device 3, and the base plate 12 are integrally attached to the vehicle, the determination unit 21 inputs an ON signal from the tamper resistant switch 24. Thus, the radio module main body 2 is shifted from the partial energization operation mode to the energization operation mode. In this case, when the radio wave module main body 2 and the connection portion 8 of the display device 3 are normally connected, power is supplied from the battery 26 of the radio wave module main body 2 to the display device 3 and the radio wave module main body 2 and the display device. 3 can perform data communication between them.

  Here, in the radio module main body 2, when the determination unit 21 detects that the radio signal received from the outside has a signal level or signal pattern defined in advance, the control unit 15 is activated to energize the radio module main body 2. When the operation mode is changed to the communication operation mode and it is detected that an operation start signal has been received from the outside, the operation is started thereafter and communication with the roadside device is possible. When activated, the control unit 15 outputs a display command signal to the control unit 29 of the display device 3 and reads vehicle information such as a vehicle registration number stored in the nonvolatile memory 19 from the nonvolatile memory 19. The read vehicle information is output to the control unit 29 of the display device 3.

  In the display device 3, when the display unit 3 receives the display command signal and the vehicle information from the control unit 15 of the radio wave module body 2, the control unit 29 operates the power supplied from the rechargeable battery 27 as shown in FIG. The vehicle information input from the radio wave module body 2 as power is displayed on the display unit 30 as display information, and the display information is maintained. In this case, as described above, the display device 3 has the property that it requires operating power to switch display information while it does not require operating power to maintain display information. In order to initially display the vehicle information as display information, the power of the battery 26 of the radio module main body 2 is required. However, the power of the battery 26 of the radio module main body 2 is maintained while the display device 3 keeps displaying the display information. Is not required, and the remaining capacity of the battery 26 of the radio wave module body 2 is not reduced (the battery 26 is not consumed).

  When the radio wave module main body 2 is in a state in which normal communication is possible by the processing described above, the vehicle information stored in the radio wave module main body 2 is displayed on the display device 3 as display information. By visually checking the vehicle information displayed in 3, it can be confirmed that the radio wave module main body 2 is in a state in which normal communication is possible.

(2) When the remaining capacity of the battery 26 decreases to a threshold value When the radio wave module body 2 communicates, power is consumed to transmit / receive a radio signal, or to perform modulation processing or demodulation processing, and the remaining capacity of the battery 26 decreases. Will do. In the radio wave module body 2, when the control unit 15 inputs the battery voltage from the power supply unit 25 and analyzes the remaining capacity of the battery 26 and detects that the remaining capacity of the battery 26 has decreased to the threshold value, a display command signal is displayed. It outputs to the control part 29 of the apparatus 3. In the display device 3, when the display unit 3 receives a display command signal from the control unit 15 of the radio module main body 2, the control unit 29 switches display information using the power supplied from the rechargeable battery 27 as the operating power.

  Specifically, as shown in FIG. 1 (b), the control unit 29 deletes the vehicle information that has been displayed so far, and displays, for example, “cannot communicate, battery exhaustion required replacement” from the display information representing the vehicle information. Character information that prompts replacement of the radio wave module main body 2 is switched as display information, and the display information is maintained. In this case, the power of the battery 26 of the radio wave module body 2 is required for the display device 3 to switch the display of the character information as the display information. However, while the display device 3 maintains the display of the character information as the display information, The power of the battery 26 of the radio module main body 2 is not required, and the remaining capacity of the battery 26 of the radio module main body 2 is not reduced.

  When the remaining capacity of the battery 26 of the radio module main body 2 is reduced to the threshold by the processing described above, the character information that prompts replacement of the radio module main body 2 is displayed on the display device 3 as display information. By visually observing the character information prompting the replacement of the radio wave module main body 2 displayed on the device 3, it can be confirmed that the remaining capacity of the battery 26 of the radio wave module main body 2 has decreased to the threshold value. It is possible to confirm that it is necessary to exchange.

(3) When the radio wave module main body 2 is removed from the display device 3 When the radio wave module main body 2 is detached from the display device 3, as described above, in the radio wave module main body 2, the tamper resistant switch 24 is set to detect an abnormality. Is output to the control unit 15 via the determination unit 21, and in the display device 3, the removal detection unit 31 outputs a removal detection signal to the control unit 29.

  In the radio wave module main body 2, when the control unit 15 inputs an abnormality detection signal from the tamper resistant switch 24 via the determination unit 21, memory information stored in the nonvolatile memory 19 or the volatile memory 23 as a tamper resistant operation. Is erased entirely or partially, or the communication function of the RF unit 17 is forcibly prohibited, and the subsequent operation is stopped or restricted.

  On the other hand, in the display device 3, when the control unit 29 inputs the removal detection signal from the removal detection unit 31, power cannot be supplied from the battery 26 of the radio wave module body 2 to the rechargeable battery 27 at this time. The display information is displayed and switched using the power supplied from the rechargeable battery 27 as the operating power.

  More specifically, as shown in FIG. 1C, the control unit 29 deletes the vehicle information that has been displayed so far, and displays, for example, a radio wave “unusable radio module removal” from the display information representing the vehicle information. Character information indicating that the module body 2 has been removed from the display device 3 is switched as display information, and the display information is maintained. In this case, the power of the rechargeable battery 27 is required for the display device 3 to switch the display of the character information as the display information. However, while the display device 3 maintains the display of the character information as the display information, the rechargeable battery 27 Electric power is not required, and the remaining capacity of the rechargeable battery 27 does not decrease.

  When the radio module main body 2 is removed from the display device 3 by the processing described above, character information indicating that the radio module main body 2 has been removed from the display device 3 is displayed on the display device 3 as display information. Therefore, the user visually removes the radio wave module main body 2 from the display device 3 by viewing the character information indicating that the radio wave module main body 2 displayed on the display device 3 has been removed from the display device 3. It can be confirmed that the radio wave module body 2 has performed the tamper-proof operation.

  By the way, as described above, when the remaining capacity of the battery 26 is reduced to the threshold value, the vehicle information that has been maintained until then is deleted, and the display device 3 as a whole is displayed with the character information that prompts replacement of the radio wave module body 2 as display information. As shown in FIG. 4 (b), the radio wave module body 2 can be replaced without deleting the vehicle information that has been maintained until then (while maintaining the vehicle information). The prompting character information may be displayed on a part of the display device 3 as display information. Further, when the radio module main body 2 is detached from the display device 3, as shown in FIG. 4C, character information indicating that the radio module main body 2 has been removed from the display device 3 is used as display information. It may be displayed on a part of the display device 3. In addition, when the radio wave module body 2 that has been disabled from the same display device 3 or another display device after being started in the past is attached to the display device 3, the display device 3 displays vehicle information. You may make it not display as information.

  As described above, according to the first embodiment, when the remaining capacity of the battery 26 of the radio wave module body 2 decreases to the threshold, the character information indicating that the remaining capacity of the battery 26 has decreased to the threshold is displayed on the display device 3. Since the display is switched as display information, it is possible to appropriately notify the user that the remaining capacity of the battery 26 has decreased to a threshold value (so-called battery shortage is approaching). In this case, since the display device 3 is composed of electronic paper having the property that it does not require operating power to display and maintain display information while it requires operating power to switch display information, the display device 3 is character information. In order to maintain the display as the display information, the capacity of the battery 26 is not consumed, and it is possible to prevent the product life from being shortened or the original communication function as the radio wave module from being hindered. .

  In addition, when the radio module main body 2 is removed from the display device 3, the display device 3 switches the display of character information indicating that the radio module main body 2 has been removed from the display device 3 as display information. Therefore, it is possible to appropriately notify the user that the radio module main body 2 has been removed from the display device 3, and to appropriately inform the user that the radio module main body 2 has performed the tamper resistant operation. Further, in this case, since the vehicle information that has been displayed until then is erased, the radio wave module body 2 can be prevented from functioning as a radio wave module after being removed from the display device 3.

  In addition, when the radio module main body 2 that has been removed from the same display device 3 or another display device after being started in the past and invalidated is attached to the display device 3, the display device 3 does not switch display information. Since the radio module main body 2 attached to the display device 3 has been operated in the past, the radio module main body 2 is removed from the same display device 3 or another display device and invalidated. Can be appropriately notified to the user, and impersonation by replacing the radio wave module body 2 can be avoided in advance, and misuse can also be prevented.

  Further, when the radio wave module main body 2 is in a state in which normal communication is possible, the vehicle information stored in the radio wave module main body 2 is displayed and maintained as display information by the display device 3. By maintaining the displayed vehicle information as display information, it is possible to appropriately notify the user that the radio wave module body 2 is in a state where normal communication is possible. Further, by determining whether the vehicle information displayed and maintained as the display information is correct or not, it is possible to determine whether the radio module main body 2 is correct (whether it is a legitimate one) or not. It can be determined whether or not it is being used. In addition, since the vehicle registration number is displayed in the vehicle information, it can have the same function as the current license plate, and the vehicle on which the electronic license plate 32 is attached travels on a general public road. You can also. Furthermore, in the present embodiment, since the display device 3 is composed of extremely thin electronic paper, the electronic license plate 32 is thickened as a whole even when the display device 3 is attached to the base plate 12. It can be avoided.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. In addition, description is abbreviate | omitted about the same part as above-mentioned 1st Embodiment, and a different part is demonstrated. In the first embodiment described above, since the radio module main body 2 and the base plate 12 are separate, the radio module 1 with a display function configured to include the radio module main body 2 and the display device 3 is attached to the base plate 12. On the other hand, in the second embodiment, the radio module main body and the base plate are integrated to form an electronic license plate.

  That is, the electronic license plate 41 has a base plate 42 formed in the same size as the current license plate and a display device 43 having the same function as the display device 3 described in the first embodiment (the present invention). The display means) is attached. The base plate 42 is partly or entirely made of a radio wave transmitting material that transmits radio waves, and is equivalent to the radio wave module body 2 described in the first embodiment so that an antenna is disposed at least at the location of the radio wave transmitting material. A radio module main body having the above functions is incorporated.

  In this case as well, as described in the first embodiment, when the radio module main body is in a normally communicable state, it is stored in the radio module main body as shown in FIG. Vehicle information is displayed on the display device 43 as display information, and when the remaining capacity of the battery of the radio module main body falls to a threshold value, as shown in FIG. The character information that prompts the user to replace the electronic license plate 41 is displayed on the display device 43 as display information. Further, in this case, unlike the one described in the first embodiment, the radio module main body is not removed from the display device, but the electronic license plate 41 is removed from the vehicle. As shown in FIG. 5C, display information indicating that the electronic license plate 41 has been removed from the vehicle is displayed on the display device 43.

  As described above, according to the second embodiment, when the remaining capacity of the battery of the radio module main body decreases to the threshold value, the display device displays the character information indicating that the remaining capacity of the battery has decreased to the threshold value as display information. Since the display is switched, it is possible to appropriately notify the user that the remaining capacity of the battery has decreased to the threshold value in the same manner as described in the first embodiment. Also in this case, since the display device 43 is composed of electronic paper having the property that it does not require operating power to maintain display information while it requires operating power to switch display information, the display device 43 is a character. Battery capacity is not consumed to maintain display of information as display information, and it is possible to avoid shortening the product life and hindering the original communication function as a radio wave module. .

  In addition, when the electronic license plate 41 is removed from the vehicle, the display device 43 is configured to display and switch the character information indicating that the electronic license plate 41 has been removed from the vehicle. The user can be appropriately informed that the plate 41 has been removed from the vehicle, and the user can be appropriately informed that the radio module main body has performed a tamper-proof operation. In addition, since the vehicle registration number is displayed in the vehicle information, it can have the same function as the current license plate, and the vehicle on which the electronic license plate 41 is attached travels on a general public road. You can also. Furthermore, in this case, since the radio module main body is built in the base plate 42, the radio module main body does not become a projection, and the radio module main body can be protected from dirt and damage and improved in appearance. In addition, it is possible to realize a structure that does not feel uncomfortable as compared with the current license plate.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS. In addition, description is abbreviate | omitted about the same part as above-mentioned 1st Embodiment, and a different part is demonstrated.
In the first embodiment described above, the display device 3 is configured to have the same size as the current license plate. On the other hand, in the third embodiment, the display device has the current license plate. It is a size that is sufficiently smaller than that and can be attached to the current license plate so as not to hide vehicle information stamped on the current license plate.

  That is, the radio module 51 with a display function is formed in a sufficiently smaller size than the radio module main body 2 described in the first embodiment and the display device 3 described in the first embodiment. The display device 52 (display means in the present invention) is provided, and is configured to be attachable to the current license plate 54 so as not to hide the vehicle information stamped on the current license plate 54.

  The display device 52 is only different in size from the display device 3 described in the first embodiment, and requires operating power to switch display information, while operating power to maintain display information. The connection part 53 to which the radio wave module main body 2 is connected is provided at a predetermined portion, and the radio wave module main body 2 is normally connected to the connection part 53. In the state, power is supplied from the battery 26 built in the radio module main body 2 to the display device 52, and the radio module main body 2 and the display device 52 can perform data communication between them. The display device 52 is also formed with an insertion hole 52a through which the mounting bolt 7 is inserted, and the current number plate 54 is also formed with insertion holes 54a and 54b through which the mounting bolts 7 and 11 are inserted. Has been. In this way, the radio module 51 with a display function is used as the electronic license plate 55 in a state of being attached to the current license plate 54.

  In this case, when the radio wave module main body 2 is in a state in which normal communication is possible, for example, character information indicating that the radio wave module main body 2 is in a state in which normal communication is possible is displayed on the display device 52 as display information. In addition, when the remaining capacity of the battery 26 of the radio module main body 2 decreases to a threshold value, for example, character information that prompts the exchange of the radio module main body 2 “cannot communicate” is displayed on the display device 52 as display information. When the module main body 2 is removed from the display device 52, for example, display information indicating that the radio wave module main body 2 has been removed from the display device 52 is displayed on the display device 52 as display information.

  As described above, according to the third embodiment, when the remaining capacity of the battery 26 of the radio wave module body 2 decreases to the threshold value, the character information indicating that the remaining capacity of the battery 26 has decreased to the threshold value is displayed on the display device 52. Since the display is switched as display information, it is possible to appropriately notify the user that the remaining capacity of the battery 26 has decreased to the threshold value in the same manner as described in the first embodiment. Also in this case, since the display device 52 is composed of, for example, electronic paper, which has the property that it does not require operating power to display and maintain the display information while it requires operating power to switch the display information, the display device 52 In order to maintain display of character information as display information, the capacity of the battery 26 is not consumed, and it is possible to avoid shortening the product life and impairing the original communication function as a radio wave module. Can do.

  In addition, when the radio module main body 2 is removed from the display device 52, the display device 52 switches the display of character information indicating that the radio module main body 2 has been removed from the display device 52 as display information. Therefore, in the same manner as described in the first embodiment, it is possible to appropriately notify the user that the radio wave module main body 2 has been removed from the display device 52, and the radio wave module main body 2 can be tamper resistant. It is possible to appropriately notify the user that the operation has been performed. Moreover, since it comprised so that a vehicle registration number might be displayed among vehicle information, the identity of the vehicle information memorize | stored in the electromagnetic wave module main body 2 and the current number plate 54 can also be confirmed. Further, in this case, since the radio module 51 with a display function is configured to be attached to the current license plate 54, the current license plate 54 can be used effectively, the introduction cost can be reduced, and the introduction cost can be reduced. The feasibility can be improved.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described with reference to FIG. In addition, description is abbreviate | omitted about the same part as above-mentioned 1st Embodiment, and a different part is demonstrated. In the first embodiment described above, the rechargeable battery 27 is disposed in the display device 3 in order to ensure the operating power of the display device 3, whereas in the fourth embodiment, the display device 3 The auxiliary battery is arranged in the display device in order to secure the operating power.

  That is, the display device 61 includes the control unit 29, the display unit 30, and the removal detection unit 31 described in the first embodiment as functional blocks, and also includes a power supply switching unit 62. When the detection unit 31 detects that the radio wave module main body 2 has been removed from the display device 61 and the detection unit 31 detects that the removal detection signal is input from the removal detection unit 31, the control unit 29 supplies the power switching signal to the power switching unit. To 62.

  The power supply switching unit 62 supplies power supplied from the battery 26 of the radio wave module body 2 as operating power to each functional block when the radio module body 2 is normally connected to the display device 61. When 2 is removed from the display device 61 and a power switch signal is input from the control unit 29, the power supplied from the auxiliary battery 63 is supplied to each functional block as operating power.

  As described above, according to the fourth embodiment, when the remaining capacity of the battery 26 of the radio wave module main body 2 decreases to the threshold value, the character information indicating that the remaining capacity of the battery 26 has decreased to the threshold value is displayed on the display device 61. Is switched as display information, and when the radio module main body 2 is removed from the display device 61, the display device 61 displays character information indicating that the radio module main body 2 has been removed from the display device 61. In the same manner as described in the first embodiment, it is possible to appropriately notify the user that the remaining capacity of the battery 26 has decreased to the threshold value, and It is possible to appropriately notify the user that the module main body 2 has been removed from the display device 61, and to appropriately notify the user that the radio wave module main body 2 has performed the tamper resistant operation. Can.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described with reference to FIGS. In addition, description is abbreviate | omitted about the same part as above-mentioned 3rd Embodiment, and a different part is demonstrated. In the third embodiment described above, the display device 52 is configured separately from the radio module main body 2, whereas in the fifth embodiment, the display device is configured as an integral unit with the radio module main body. .

  That is, the radio module 71 with a display function is configured by integrating a display device 73 (display means in the present invention) into a radio module main body 72. The radio wave module main body 72 includes an antenna 74, a storage device 75, a control device 76, a tamper-resistant switch 77, and a battery 78 as a power source, and a predetermined portion of the casing (in this embodiment, the antenna surface of the antenna 74). An opening 72a is formed in a step shape on the front portion facing 74a. An ultraviolet LED 79 (physical state switching means in the present invention) for irradiating ultraviolet rays is mounted on the circuit board 80 together with the antenna 74, the storage device 75, and the control device 76 at a portion facing the opening 72a inside the housing. In the opening 72a, a transparent member 82 to which a label 81 is attached is provided as a display window.

  The label 81 includes a photochromic material that reacts to ultraviolet rays, and is configured such that when the ultraviolet LED 79 irradiates ultraviolet rays, the photochromic material changes irreversibly in response to the ultraviolet rays. Further, an ultraviolet blocking film 83 (ultraviolet blocking member referred to in the present invention) that blocks ultraviolet rays is provided on the surface (outer surface) opposite to the surface (inner surface) to which the label 81 is attached in the transparent member 82. It is pasted.

  FIG. 12 is a functional block diagram showing the electrical configuration of the radio module main body described above. The radio wave module main body 72 includes a control unit 84, a switch unit 16, an RF unit 17, a high-frequency oscillation unit 18, a non-volatile memory 19, a wake-up unit 20, a determination unit 21, a low-frequency oscillation unit 22, and a volatile memory 23 as functional blocks. In addition to the tamper-resistant switch 77 and the power supply unit 25, a voltage detection unit 85 that detects the voltage of the battery 26, a temperature detection unit 86 that detects the ambient temperature, and a display unit 87 that includes the ultraviolet LED 79 described above are provided. It is configured.

  The tamper resistant switch 77 is composed of an on / off switch in the same manner as the tamper resistant switch 24 described above. When the radio module main body 72 is normally attached to the current license plate 88, FIG. As shown in a) and FIG. 10A, in the state where the projecting portion 77a is pushed into the main body portion 77b and turned on, and the radio wave module main body 2 is removed from the current number plate 88, FIG. As shown in FIG. 10 (b), the protruding portion 77a protrudes from the main body portion 77b and is turned off. Then, when the tamper resistant switch 77 is switched from the on state to the off state in this way, the wave module main body 72 is non-volatile as tamper resistant operation in the same manner as described in the first embodiment. The memory information stored in the memory 19 and the volatile memory 23 is completely or partially erased, the communication function of the RF unit 17 is forcibly prohibited, and the subsequent operation is stopped or restricted. The radio wave module main body 72 described above is attached to the current number plate 88 with the mounting bolt 7, the seal 13 and the seal 14 as shown in FIG.

  In this case, the control unit 84 inputs the voltage information of the battery 26 from the voltage detection unit 85 and the ambient temperature information from the temperature detection unit 86, and analyzes the voltage information of the battery 26 and the ambient temperature information. It is determined whether or not the remaining capacity of the battery 26 has decreased to a threshold value. In general, the battery voltage fluctuates depending on the temperature. As shown in FIG. 13, the battery voltage decreases at a low temperature, but the battery voltage recovers at a normal temperature or a high temperature. Because it has. In addition, since it has a characteristic that the battery voltage rapidly decreases beyond a certain point, the voltage information of the battery 26 and the ambient temperature information indicate the number of times the radio module main body 72 is activated, and the radio module main body 72 is normal. Determination material includes at least one of the number of times communication is completed, the number of times the radio module main body 72 interrupts communication (abnormal termination), the number of times the radio module main body 72 is erroneously activated, and the accumulated time of activation of the radio module main body 72 In addition, it may be determined. This makes it possible to more accurately determine whether or not the remaining capacity of the battery 26 has decreased to the threshold value.

  Then, when the control unit 84 detects that the remaining capacity of the battery 26 has decreased to the threshold value, the control unit 84 outputs a lighting signal to the display unit 87. The ultraviolet LED 79 of the display unit 87 is turned on when a lighting signal is input from the control unit 84 and emits ultraviolet rays toward the label 81. When the ultraviolet rays are irradiated from the ultraviolet LED 79, the photochromic material is converted into ultraviolet rays. In response, the color changes irreversibly. In this case, the control unit 84 irradiates the ultraviolet light from the ultraviolet LED 79 for the time until the label 81 changes color, and when the label 81 completes the color change, stops the irradiation of the ultraviolet light from the ultraviolet LED 79, or Irradiation is continued until the battery 26 runs out of capacity.

  When the remaining capacity of the battery 26 of the radio wave module main body 72 decreases to the threshold value by the processing described above, the color of the label 81 changes. Therefore, the user visually observes that the color of the label 81 has changed, whereby the radio wave module main body. It can be confirmed that the remaining capacity of the battery 26 of 72 has decreased to the threshold value, and it can be confirmed that the radio wave module main body 72 needs to be replaced.

  In addition, when the control unit 84 detects that the tamper-resistant switch 77 is switched from the on state to the off state and the radio module main body 72 is removed from the current license plate 88, the control unit 84 also displays a lighting signal in this case. Output to 87. The ultraviolet LED 79 of the display unit 87 is turned on when a lighting signal is input from the control unit 84 and emits ultraviolet rays toward the label 81. When the ultraviolet rays are irradiated from the ultraviolet LED 79, the photochromic material is converted into ultraviolet rays. In response, the color changes irreversibly. The color change in this case may be a color change in a mode different from the case where the remaining capacity of the battery 26 is reduced to a threshold value by changing the wavelength of light irradiated by the ultraviolet LED 79, for example. Also in this case, the control unit 84 irradiates the ultraviolet light from the ultraviolet LED 79 for the time until the label 81 changes color, and when the label 81 completes the color change, stops the irradiation of the ultraviolet light from the ultraviolet LED 79. Alternatively, the irradiation is continued until the capacity of the battery 26 runs out.

  When the radio wave module main body 72 is removed from the current license plate 88 by the above-described processing, the color of the label 81 changes, so that the user visually observes that the color of the label 81 has changed, so that the radio wave module It can be confirmed that the main body 72 has been removed from the current license plate 88.

  By the way, the case where the ultraviolet LED 79 for irradiating ultraviolet rays is provided and the label 82 changes color due to the ultraviolet rays has been described above. However, a sensor that emits heat and magnetism is provided, and the thermo label changes color due to heat or magnetic. Using the fact that the film undergoes color change due to magnetism, the user is informed that the remaining capacity of the battery 26 of the radio module main body 72 has decreased to the threshold value and that the radio module main body 72 has been removed from the current license plate 88. It may be configured to notify.

  As described above, according to the fifth embodiment, when the remaining capacity of the battery 26 of the radio module main body 72 decreases to the threshold value or the radio module main body 72 is removed from the current license plate 88, the ultraviolet LED 79 is used. Since the label 81 is irreversibly changed in color by irradiating ultraviolet rays, it is similar to the one described in the first embodiment, and the radio module that the remaining capacity of the battery 26 is reduced to the threshold value. It is possible to appropriately notify the user that the main body 72 has been removed from the current license plate 88.

  In this case, since the label 81 color changes irreversibly, the power consumption required to change the color of the label 81 is sufficient, so that the product life can be shortened or the radio wave can be reduced in the same manner as described in the first embodiment. It is possible to avoid obstructing the original communication function as a module. In this case, since the display device 73 is provided integrally with the radio wave module main body 72, the radio wave module main body 72 and the display device can be replaced even when the radio wave module main body 72 is removed and replaced by, for example, battery replacement. There is no need to remove and replace 73 separately, the radio wave module main body 72 and the display device 73 can be integrally removed and replaced, and the removal work and the replacement work can be easily performed. In addition, since the ultraviolet film 83 is provided, it is possible to avoid malfunction due to the influence of sunlight.

(Sixth embodiment)
Next, a sixth embodiment of the present invention will be described with reference to FIGS.
The electronic license plate 91 has a function equivalent to that of the display device 3 described in the first embodiment. That is, the electronic license plate 91 requires operating power to switch display information while maintaining display information display. A display device 92 (display means in the present invention) made of, for example, electronic paper having a property that does not require operating power is attached to the base plate. In this case, the display device 92 is configured to operate using, for example, power supplied from a battery as operating power.

  An electronic license plate display control ECU (hereinafter referred to as display control ECU) 93 is a user operation detection signal input from an operation switch operable by a user, a vehicle behavior signal input / output unit 94 (vehicle behavior state acquisition means referred to in the present invention). The display information of the display device 92 is electronically switched on the basis of the vehicle behavior signal input from () and the external communication signal input from the external communication device 95 (external communication means in the present invention).

  The vehicle behavior signal input / output unit 94 includes an accelerator signal indicating an accelerator behavior (degree of opening), a brake signal indicating a brake behavior, a winker signal indicating a blinker behavior, and a steering behavior (degree of turning accuracy). The steering signal, the door opening / closing switch signal indicating the behavior of the door opening / closing switch, the vehicle speed signal detected by the vehicle speed sensor, and the like are input to the display control ECU 93 as the vehicle behavior signal.

  The external communication device 95 performs road-to-vehicle communication with the roadside device 96 installed on the roadside, receives signals such as traffic jam information and accident information from the roadside device 96, and is mounted on other vehicles. When inter-vehicle communication is performed with the communication device 97 and signals such as traffic jam information and accident information are received from the in-vehicle communication device 97, they are output to the display control ECU 93 as external communication signals.

  The display control ECU 93 analyzes the user operation detection signal input from these operation switches, the vehicle behavior signal input from the vehicle behavior signal input / output unit 94, and the external communication signal input from the external communication device 95, and switches display information. . More specifically, as shown in FIG. 15, the display control ECU 93 is used in production at a production factory, transportation from a production factory to a dealer, display at a dealer, and delivery to a customer. For example, each person in charge (such as a worker or a salesperson) operates the operation switch to switch the display information on the electronic license plate 91 to display information corresponding to each process. The display information in this case may be stored in a storage area (not shown) and read out in advance, or may be individually input by each person in charge when the display information is switched. It may be a thing. Although FIG. 15 shows the electronic license plate attached to the front of the vehicle, the same applies to the electronic license plate attached to the rear of the vehicle.

  Further, as shown in FIG. 16, when the vehicle is traveling on the road, the display control ECU 93 analyzes the accelerator behavior, the brake behavior, the blinker behavior, the steering behavior, and the like to register the vehicle. For example, display information such as “departs”, “stops”, “turns right”, “turns left” and “attention to approach” is displayed superimposed on the number ((a) to (in FIG. 16) e)).

  Further, as shown in FIG. 17, the display control ECU 93 superimposes on the vehicle registration number by analyzing either the signal received from the roadside device 96 installed on the roadside or the signal received from the in-vehicle communication device 97. For example, display information such as “There is a traffic jam ahead” is displayed (see (a) to (c) in FIG. 17), or vehicle information stored in the radio wave module described in the first embodiment described above. Is read out, "vehicle inspection expired" indicating that the expiration date of the vehicle inspection has expired, "vehicle tax not paid" indicating that the automobile tax has not been paid, and "theft plate" indicating that the vehicle has been stolen Display information (see (d) to (f) in FIG. 17).

  In these cases, when displaying new display information, the display control ECU 93 may reduce the display density of the vehicle registration number that has been displayed so far (white in FIGS. 16 and 17). The display density of the vehicle registration number displayed so far may be increased, or new display information may be blinked or scrolled. Further, the display control ECU 93 may display new display information in a size larger than the size per character of the vehicle registration number displayed so far. Further, the display control ECU 93 may display a combination of a font and a picture. For example, as shown in FIG. 18, the display control ECU 93 may display not only the vehicle registration number but also a picture related to the area of the vehicle registration number. good.

  As described above, according to the sixth embodiment, since the electronic license plate 91 is configured to electronically switch the display information, it is not necessary to be pre-processed before being attached to the vehicle. The number of labor required for inventory management of license plates can be eliminated, and the information that can be given to users and unspecified number of people is not limited to vehicle information. Can provide useful information other than vehicle information.

  In this case, for example, by acquiring the behavior of the accelerator, the behavior of the brake, the behavior of the blinker, the behavior of the steering, etc., the pedestrians in the surroundings that the vehicle starts, stops, turns right, turns left, etc. Or the following vehicle, and by receiving traffic jam information, accident information, etc. from either the roadside device 96 installed on the roadside or the in-vehicle communication device 97 mounted on other vehicles, And the following vehicle can be notified of the fact that the vehicle is in an accident and that an accident has occurred.

(Other embodiments)
The present invention is not limited to the above-described embodiment, and can be modified or expanded as follows.
The display device is not limited to electronic paper, and any display device may be used as long as it requires operating power to switch display information while it does not require operating power to maintain display information.
The display information displayed when the remaining battery capacity drops to the threshold, when the radio module main body is removed from the display device, or when the electronic license plate is removed from the vehicle is other character information. Alternatively, it may be graphic information that represents the state of the radio wave module or the electronic license plate as a graphic, or character information and graphic information may be combined.

When the radio module main body communicates with the roadside device, the radio module main body may be notified of the status of the radio module main body, and the radio module main body status may be normal as well as abnormal. In addition, the state of the radio module main body may be constantly notified to the roadside device. The radio module main body may communicate with a small checker or tester (tester) to notify the small checker or tester of the status of the radio module main body.
After the radio module main body notifies the roadside unit of the state of the radio module main body, the state of the radio module main body may be individually notified to a user's mobile phone or the like via a public line or the Internet, for example.

In the fifth embodiment, the part in which the display device is integrally incorporated into the radio module main body is not limited to the front part of the housing, but may be the upper surface part or the side part of the housing. A plurality of display devices may be provided, and a combination of display patterns may be used to inform the user of the state of the radio module main body.
In the first to fourth embodiments, in the same manner as described in the fifth embodiment, whether or not the remaining amount of the battery has decreased to the threshold value is determined. The number of times the main unit was started, the number of times the radio module main unit successfully completed communication, the number of times the radio module main unit interrupted communication (abnormal termination), the number of times the radio module main unit was erroneously started, and the accumulated time the radio module main unit was started At least one of them may be determined as a determination material.

  In the sixth embodiment, the electronic license plate may operate using the power supplied from the built-in battery as the operating power. A display device may be configured by two-dimensionally arranging a plurality of LEDs, or a display device may be configured by a liquid crystal display, a plasma display, or an organic EL. As long as the in-vehicle camera is installed, the display information obtained by analyzing the video taken by the in-vehicle camera may be displayed. For example, if a falling object is detected, “There is a falling object”, etc. The display information may be displayed. For example, as long as the configuration has a short-range wireless function such as Bluetooth (registered trademark) or a wireless LAN, a configuration in which an operation signal is received from a portable terminal with a short-range wireless function and display information is switched may be used.

The figure which shows the 1st Embodiment of this invention, Comprising: The figure which shows the aspect by which display information is displayed on the display apparatus External perspective view showing the overall configuration Functional block diagram The figure which shows the aspect by which display information is displayed on the display apparatus The figure which shows the 2nd Embodiment of this invention, Comprising: The figure which shows the aspect by which display information is displayed on the display apparatus The figure which shows the 3rd Embodiment of this invention, Comprising: The figure which shows the aspect by which display information is displayed on the display apparatus 2 equivalent diagram Functional block diagram showing a fourth embodiment of the present invention The side view which shows the 5th Embodiment of this invention, Comprising: The longitudinal section which shows the principal part of invention The figure which shows the aspect which ultraviolet-ray LED has irradiated the ultraviolet-ray The figure which shows the mode that the electric wave module body is attached to the current license plate 3 equivalent figure The figure which shows the aspect in which the relationship between battery voltage and discharge time depends on temperature. Functional block diagram showing a sixth embodiment of the present invention Diagram showing how display information is switched from production to customer delivery The figure which shows the aspect by which display information is display-switched 16 equivalent diagram 16 equivalent diagram

Explanation of symbols

  In the drawings, 1 is a radio module with a display function, 2 is a radio module main body, 3 is a display device (display means), 12 is a base plate, 26 is a battery, 27 is a rechargeable battery, 41 is an electronic license plate, 42 is a base plate, 43 Is a display device (display means), 51 is a radio module with a display function, 52 is a display device (display means), 54 is a current license plate, 61 is a display device (display means), 63 is an auxiliary battery, and 71 is a display function. Radio module with 72, radio module main body, 73 display device (display means), 79 UV LED (physical state switching means), 83 UV blocking film (UV blocking member), 88 license plate, 91 electronic number Plate 92, display device (display means), 94 vehicle behavior signal input / output unit (vehicle behavior state acquisition means), 95 external Shin machine (external communication means), 96 is a roadside device, 97 is a vehicle communication terminal.

Claims (42)

A radio module main body that operates using power supplied from a battery sealed in a housing as operating power;
The battery module has a rechargeable battery that charges and discharges the power supplied from the battery of the radio module main body, and requires operating power to display and switch display information, but does not require operating power to maintain display information. Display means having
Whether the remaining capacity of the battery of the radio module main body has decreased to a threshold, the number of times the radio module main body is activated, the number of times the radio module main body has successfully completed communication, based on battery voltage information and ambient temperature information , the number of times the radio module body has finished their communication abnormal end, also determines added as a judgment material at least one of the accumulated time that radio module number and the radio module body main body is activated accidentally started,
The display means has power supplied from the battery of the radio module main body when the radio module body changes state when power is supplied from the battery of the radio module main body to the display means. Alternatively, display information indicating the state of the radio module main body is displayed and switched using the power charged from the battery of the radio module main body and being supplied from the rechargeable battery as operating power, and the radio module main body When the remaining capacity of the battery decreases to a threshold value, the display is switched from display information before the remaining capacity of the battery decreases to the threshold value to display information indicating that the remaining capacity of the battery has decreased to the threshold value. Radio module with display function. A radio module main body that operates using power supplied from a battery sealed in a housing as operating power;
A display means having an auxiliary battery and having a property that does not require operating power to display and maintain display information while operating power is required to switch display information.
Whether the remaining capacity of the battery of the radio module main body has decreased to a threshold, the number of times the radio module main body is activated, the number of times the radio module main body has successfully completed communication, based on battery voltage information and ambient temperature information , the number of times the radio module body has finished their communication abnormal end, also determines added as a judgment material at least one of the accumulated time that radio module number and the radio module body main body is activated accidentally started,
The display means has power supplied from the battery of the radio module main body when the radio module body changes state when power is supplied from the battery of the radio module main body to the display means. Alternatively, the display information indicating the state of the radio module main body is switched using the power supplied from the auxiliary battery as the operating power, and when the remaining capacity of the battery of the radio module main body falls to a threshold value, A radio module with a display function, wherein display switching is performed from display information before the remaining capacity is reduced to a threshold value to display information indicating that the remaining capacity of the battery is reduced to the threshold value. In the radio module with a display function according to claim 1 ,
The display means charges the rechargeable battery from the battery of the radio module main body when power is not supplied from the battery of the radio module main body to the display means due to the state of the radio module main body being switched. Telecommunications module with display function and displaying the switching display information indicating the state of the radio module body the power being supplied as an operating power from the rechargeable battery is. In the radio module with a display function according to claim 2 ,
The display means uses the power supplied from the auxiliary battery as operating power when power is not supplied from the battery of the radio module main body to the display means due to the radio module main body switching state. A radio wave module with a display function, wherein display information representing a state of the radio wave module body is switched. In the radio module with a display function according to claim 3 or 4 ,
When the radio module main body is removed from the display means, the display means removes the radio module main body from the display means based on display information before the radio module main body is removed from the display means. Telecommunications module with display function, characterized in that the display switching on the display information that represents that the. The radio module with a display function according to any one of claims 1 to 5,
The display means, radio module body radio module body that is invalidated is removed from the same said display means, which is the case attached to the display unit or disable detached from another of said display means, A radio wave module with a display function, wherein display information is not switched when the is attached to the display means. In the radio module with a display function according to any one of claims 1 to 6,
The display means, the display means Gana members plate and configured to be capable of attachment to a base plate which is formed on the same size, when the radio module body is in a normal communicable state, stored in the radio module body A radio wave module with a display function, characterized in that display vehicle information is maintained as display information. In the radio module with a display function according to claim 7 ,
The display function is characterized in that when the radio module main body is in a state in which normal communication is possible, the vehicle registration number among the vehicle information stored in the radio module main body is displayed and maintained as display information. With radio module. The radio module with a display function according to any one of claims 1 to 8,
The display means, radio module with display function, characterized in that is configured to be mounted before quinic members plates so as not to hide the vehicle information that is stamped on the burner members plates. And the base plate, which is formed in the burner members plate the same size,
A battery built in the base plate;
A rechargeable battery that is built in the base plate and charges and discharges the power supplied from the battery;
A radio wave module main body that is built in the base plate and that operates using power supplied from the battery as operating power;
A display means having a property that does not require operating power to display and maintain the display information while requiring operating power to switch display information.
Whether the remaining capacity of the battery has decreased to a threshold value, the voltage information of the battery and the ambient temperature information, the number of times that the radio module body is started, the number of times that the radio module body has successfully completed communication, number of finished their communication abnormal end, also determines added as a judgment material at least one of the accumulated time that radio module number and the radio module body main body is activated accidentally started,
The display unit is charged to the rechargeable battery from the power supplied from the battery or from the battery when the radio module main body switches state when power is supplied from the battery to the display unit. Display information indicating the state of the radio module main body using the power supplied from the rechargeable battery as operating power, and when the remaining capacity of the battery is reduced to a threshold, the remaining capacity of the battery is reduced to the threshold. An electronic license plate characterized in that the display is switched from display information before the reduction to display information indicating that the remaining capacity of the battery has decreased to a threshold value. And the base plate, which is formed in the burner members plate the same size,
A battery built in the base plate;
An auxiliary battery built in the base plate;
A radio wave module main body that is built in the base plate and that operates using power supplied from the battery as operating power;
A display means having a property that does not require operating power to display and maintain the display information while requiring operating power to switch display information.
Whether the remaining capacity of the battery has decreased to a threshold value, the voltage information of the battery and the ambient temperature information, the number of times that the radio module body is started, the number of times that the radio module body has successfully completed communication, number of finished their communication abnormal end, also determines added as a judgment material at least one of the accumulated time that radio module number and the radio module body main body is activated accidentally started,
The display means is a power supplied from the battery or a power supplied from the auxiliary battery when the radio module main body switches state when power is supplied from the battery to the display means. When the display information indicating the state of the radio module main body is switched to the operating power, and the remaining capacity of the battery is reduced to the threshold value, the display information before the remaining capacity of the battery is reduced to the threshold value is displayed. An electronic license plate, wherein the display is switched to display information indicating that the remaining capacity has decreased to a threshold value. The electronic license plate according to claim 10 or 11,
When the display means is removed from the vehicle, the display is switched from display information before being removed from the vehicle to display information indicating that the display has been removed from the vehicle . The electronic license plate according to any one of claims 10 to 12,
When the display means, attached to the vehicle after being disabled when said mounted on the vehicle or detached from another of the vehicle, after being invalidated removed from the same said vehicle An electronic license plate characterized by not switching display information. The electronic license plate according to any one of claims 10 to 13 ,
The electronic license plate characterized in that the display means displays and maintains vehicle information stored in the radio module main body as display information when the radio module main body is in a state in which normal communication is possible . The electronic license plate according to claim 14 ,
The display unit is configured to display and maintain a vehicle registration number as display information among vehicle information stored in the radio module main body when the radio module main body is in a state in which normal communication is possible. plate. A radio module main body that operates using power supplied from a battery sealed in a housing as operating power;
Physical state switching means that is provided integrally with the radio module main body and switches the physical state using the power supplied from the battery of the radio module main body as operating power;
Display means provided integrally with the radio wave module body,
Whether the remaining capacity of the battery of the radio module main body has decreased to a threshold, the number of times the radio module main body is activated, the number of times the radio module main body has successfully completed communication, based on battery voltage information and ambient temperature information , the number of times the radio module body has finished their communication abnormal end, also determines added as a judgment material at least one of the accumulated time that radio module number and the radio module body main body is activated accidentally started,
The display means irreversibly switches the display information representing the state of the radio module main body in conjunction with the physical state switching means switching the physical state when the radio module main body is switched. When the remaining capacity of the battery of the radio module main body is reduced to a threshold value, display information indicating the status of the radio module main body is irreversibly switched in conjunction with the physical state switching means switching the physical state. A radio module with a display function characterized by the above. In the radio module with a display function according to claim 16,
The display means irreversibly displays display information indicating the state of the radio module main body in conjunction with the physical state switching means switching the physical state when the radio module main body is removed from the license plate. A radio module with a display function characterized by switching . The radio module with a display function according to claim 16 or 17,
The physical state switching means varies the degree of switching the physical state according to the content of the radio module main body switching state,
The radio module with a display function, wherein the display means changes the degree of display switching of the display state in conjunction with changing the degree of switching of the physical state by the physical state switching means . The radio module with a display function according to any one of claims 16 to 18,
The physical state switching means emits light as an operation of switching the physical state,
The radio wave module with a display function, wherein the display means switches display information irreversibly in response to light emitted from the physical state switching means . The radio module with a display function according to claim 19 ,
The radio wave module with a display function, wherein the display means is provided with an ultraviolet blocking member that blocks ultraviolet rays on an outer surface portion thereof . The radio module with a display function according to any one of claims 16 to 18 ,
The physical state switching means releases heat as an operation of switching the physical state,
The radio wave module with a display function, wherein the display means switches display information irreversibly in response to heat released from the physical state switching means. The radio module with a display function according to any one of claims 16 to 18 ,
The physical state switching means generates magnetism as an operation for switching the physical state,
The radio module with a display function, wherein the display means switches display information irreversibly in response to magnetism generated from the physical state switching means. A radio wave module main body that operates using electric power supplied from a battery sealed in a housing as operating power, and a rechargeable battery that charges and discharges electric power supplied from the battery of the radio wave module main body and display information Whether or not the remaining capacity of the battery of the radio module main body has been reduced to a threshold value is provided with display means having a property that does not require operating power to maintain display information while requiring operating power to switch display. or, the voltage information and the temperature information of the surrounding cells, the number of times the radio module body is started, the number of times the radio module body completes the communication successfully, the number of times the radio module body has finished their communication abnormal end, radio module The determination is made by adding at least one of the number of times the main body is erroneously activated and the accumulated time when the radio module main body is activated as a determination material, When the radio module main body switches state when power is being supplied from the battery of the wave module main body to the display means, the power of the display means being supplied from the battery of the radio module main body or the The display information indicating the state of the radio module main body is displayed and switched using the power charged from the battery of the radio module main body and being supplied from the rechargeable battery as operating power, and the battery of the radio module main body is switched. When the remaining capacity decreases to a threshold value, the radio wave is switched from display information before the remaining capacity of the battery decreases to the threshold value to display information indicating that the remaining capacity of the battery has decreased to the threshold value. How to display the status of the module body. The radio wave module main body that operates using the power supplied from the battery sealed in the housing as the operating power is equipped with an auxiliary battery and requires display power while switching the display information. A display means having a property that does not require operating power to perform the operation, and whether or not the remaining capacity of the battery of the radio module main body has decreased to a threshold value is determined based on the voltage information of the battery and the ambient temperature information. number, the number of times the radio module body completes the communication successfully, the number of times the radio module body has finished their communication abnormal end, the cumulative time that radio module number and the radio module body main body is activated accidentally started but was started At least one of them is determined as a determination material, and power is supplied to the display means from the battery of the radio module main body. Sometimes, when the radio module main body changes state, the display means uses the power supplied from the battery of the radio module main body or the power supplied from the auxiliary battery as the operating power. When the display information indicating the state is switched to display and the remaining capacity of the battery of the radio module main body is reduced to a threshold value, the remaining capacity of the battery is determined from the display information before the remaining capacity of the battery is reduced to the threshold value. A method for displaying the state of the radio module main body, wherein the display is switched to display information indicating that the signal has been reduced to a minimum. A physical state that switches the physical state using the power supplied from the battery sealed in the housing as the operating power to the radio wave module body that operates using the power supplied from the battery sealed in the housing as the operating power A switching unit and a display unit are integrally provided in the radio module main body, and whether the remaining capacity of the battery of the radio module main body has decreased to a threshold value is determined based on the voltage information of the battery and the ambient temperature information. times the unit is started, the number of times the radio module body completes the communication successfully, radio module number of the body has finished their communication abnormal end, the cumulative time radio module number and the radio module body main body is activated accidentally started When at least one of them is added as a determination material for determination, and the radio module main body switches state, the physical state switching When the display means irreversibly switches the display information indicating the state of the radio module main body in conjunction with switching the physical state, and the remaining capacity of the battery of the radio module main body is reduced to a threshold value, A method for displaying a state of a radio module main body, wherein display switching is performed from display information before the remaining capacity of the battery decreases to a threshold value to display information indicating that the remaining capacity of the battery decreases to the threshold value. The electronic license plate according to any one of claims 10 to 15 ,
The electronic license plate , wherein the display means electronically switches display information . The electronic license plate according to claim 26,
Vehicle behavior state acquisition means for acquiring the behavior state of the vehicle,
The electronic license plate , wherein the display means switches display information based on information acquired by the vehicle behavior state acquisition means . The electronic license plate according to claim 26 or 27 ,
Provided with external communication means for performing road-to-vehicle communication with roadside devices installed on the roadside or vehicle-to-vehicle communication with in-vehicle communication devices mounted on other vehicles,
The electronic license plate , wherein the display means switches display information based on information received by the external communication means from either a roadside device or an in-vehicle communication device . Electronic license plate according to any of claims 26 to 28 ,
The electronic license plate , wherein the display means superimposes new display information on display information displayed when a trigger for switching display information is generated . The electronic license plate according to claim 29,
The electronic license plate according to claim 1, wherein the display means reduces or increases the display density of the display information displayed when a trigger for switching the display of the display information occurs . The electronic license plate according to claim 29 or 30,
An electronic license plate characterized in that the display means blinks new display information . The electronic license plate according to any of claims 29 to 31,
The electronic license plate , wherein the display means scrolls new display information . The electronic license plate according to any one of claims 26 to 31,
The electronic license plate , wherein the display means displays at least one of a font and a picture as display information . The radio module with a display function according to any one of claims 1 to 9, 16 to 22 ,
Before Symbol display means, radio module with display function and displaying switching Viewing information electronically. The radio module with a display function according to claim 34 ,
Vehicle behavior state acquisition means for acquiring the behavior state of the vehicle ,
The radio module with a display function , wherein the display means switches display information based on information acquired by the vehicle behavior state acquisition means . The radio module with a display function according to claim 34 or 35 ,
Provided with external communication means for performing road-to-vehicle communication with roadside devices installed on the roadside or vehicle-to-vehicle communication with in-vehicle communication devices mounted on other vehicles,
The radio module with a display function , wherein the display means switches display information based on information received by the external communication means from either a roadside device or an in-vehicle communication device . The radio module with a display function according to any one of claims 34 to 36 ,
The radio wave module with a display function , wherein the display means superimposes new display information on display information displayed when a trigger for switching display information is generated. The radio module with a display function according to claim 37 ,
The radio wave module with a display function , wherein the display means reduces or increases a display density of display information displayed when a trigger for switching display information is generated . In the radio module with a display function according to claim 37 or 38 ,
The radio wave module with a display function , wherein the display means blinks new display information. 40. The radio module with a display function according to claim 37 ,
The radio wave module with a display function , wherein the display means scrolls new display information . In the display function radio module as claimed in any one of claims 34 to 39,
The radio wave module with a display function , wherein the display means displays at least one of a font and a picture as display information . A vehicle comprising the electronic license plate according to any one of claims 26 to 33.

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