JP6507474B2 - Telematics terminal - Google Patents

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JP6507474B2
JP6507474B2 JP2014051110A JP2014051110A JP6507474B2 JP 6507474 B2 JP6507474 B2 JP 6507474B2 JP 2014051110 A JP2014051110 A JP 2014051110A JP 2014051110 A JP2014051110 A JP 2014051110A JP 6507474 B2 JP6507474 B2 JP 6507474B2
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uim
mobile communication
state
telematics terminal
communication network
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JP2015177279A (en
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柴田 直人
直人 柴田
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大日本印刷株式会社
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Description

  The present invention relates to a telematics terminal used in Telematics, which provides services using a mobile communication network, and more particularly to a telematics terminal having an emergency call function for transmitting an emergency call to an emergency contact point in an emergency.

  As an example of telematics that provides information services to automobiles using a mobile communication network, a vehicle emergency call service (for example, a car emergency call service that sends an emergency call to a predetermined emergency contact point when an emergency such as a traffic accident occurs) The practical application of Patent Document 1) is under consideration.

  In order to use the vehicle emergency notification service, it is necessary to mount a telematics terminal having at least a mobile communication function on the vehicle, and the "prior art" of Patent Document 1 includes a telematics terminal used in the vehicle emergency notification service. In addition to the mobile communication function, it has a function to send an emergency call in an emergency, a function to detect vehicle position information included in the emergency call, and a function to detect an emergency situation using a collision detection sensor or a rollover detection sensor Is described.

  In order to perform data communication using a mobile communication network, a UIM (User Identity Module), which is a subscriber identification module for mobile communication, is required, as with mobile phones. The UIM is a medium storing information and applications required for mobile communication.

  A terminal for mobile communication equipped with a UIM transmits a command (a STATUS command defined in 3GPP TS 31.101) to detect that the UIM has been detected in order to confirm that the UIM is installed. The process is performed periodically (for example, every 30 seconds), and if the UIM detection fails, it is determined that the state of the UIM is abnormal, and a message indicating that the UIM is abnormal is displayed on the display, It is common to limit the functions available at terminals for mobile communications.

  Failure to detect UIM occurs due to various causes. For example, according to Patent Document 2, when an ETC card, which is a contact IC card, is inserted into an on-board unit for ETC, a contact is made between the on-board unit for ETC and the ETC card due to vibration during traveling of the vehicle. It is described that a failure occurs and the ETC card is inactivated while running. In Patent Document 3, in order to eliminate the inactivation state of the ETC card, the car navigation system connected to the on-board unit for ETC is turned on again after temporarily turning off the on-board unit for ETC. Execute reset operation.

  The cause of failure to detect UIM may be due not only to the above-mentioned cause but also to the security function provided by UIM. Since UIM is sometimes used for mobile payment, the IC chip implemented in UIM is required to have a security function against failure analysis, side channel attack and physical attack as well as IC chip for credit card .

  For example, as an IC card with measures taken against failure utilization analysis that changes the operating state (for example, clock frequency, power and temperature), sensors for measuring the operating state (for example, clock frequency sensor, power sensor and temperature sensor) Patent Document 3 discloses an IC card having the In addition, in patent document 3, although the measurement result of the sensor which measures an operation state is included in a response, as described in "the background art" of patent document 3, the measurement result of the sensor which measures an operation state is It is general to stop the operation of the IC card when the reference value is deviated.

  If the UIM equipped with the security function described above is attached to a mobile communication terminal, the operation of the UIM stops when the measurement result of the sensor that measures the operation state deviates from the reference value for some reason. Since the detection fails, the functions available to the mobile communication terminal are limited.

  In particular, in the case of a vehicle emergency call service, considering that the system operates when an emergency such as a traffic accident occurs, the operation state (for example, voltage) of the UIM is affected by the impact when the traffic accident occurs. It can be assumed that the operation of the UIM is stopped by the above-mentioned security function.

Unexamined-Japanese-Patent No. 2000-232533 JP 2009-80540 A Unexamined-Japanese-Patent No. 2012-27667

  Therefore, an object of the present invention is to provide a telematics terminal capable of transmitting an emergency call to an emergency contact address even when the detection of a UIM fails in the UIM detection processing for detecting a UIM mounted. .

First invention for solving the above problems, when processing initializing the UIM, was held in the memory by reading the subscriber identification code from the UIM, the UIM detection process for detecting the UIM being mounted If the UIM can not be detected normally in the UIM detection process, the control means determines that the state of the UIM is abnormal and limits the usable functions, and measures the operating environment of the UIM. An environment measuring means is provided, and when the control means determines that the state of the UIM is an abnormal state, the output of the environment measuring means confirms whether or not an environmental abnormality has occurred, and holds the confirmation result in a memory. advance, when receiving a connection request to the mobile communication network after the UIM state is abnormal state, a connection request to the mobile communication network, due to the operation of transmitting an emergency call Check in either of the case is due to the operation of transmitting the emergency call, or to confirm the occurrence of environmental abnormality is recorded, only when there is occurrence of environmental abnormality, the subscriber held in memory It is a telematics terminal characterized by connecting to a mobile communication network using an identification code and transmitting an emergency call. According to the first aspect of the invention, the emergency notification can be issued only when it is determined that the cause of the failure to normally detect the UIM in the UIM detection processing is an abnormality of the operating environment of the UIM. In the case of the cause, it is possible not to make an emergency call.

  As described above, according to the present invention, it is possible to provide a telematics terminal capable of transmitting an emergency call to the emergency contact address even when the UIM detection process for detecting the UIM mounted fails in a case where the UIM detection fails.

FIG. 1 is a diagram for explaining a telematics terminal according to a first embodiment. Diagram for explaining the file structure of UIM. FIG. 1 illustrates the operation of a telematics terminal that causes the state of UIM to transition. FIG. 1 illustrates the operation of a telematics terminal when receiving a connection request to a mobile communication network. FIG. 6 is a diagram for explaining a telematics terminal according to a second embodiment. FIG. 2 illustrates the operation of the telematics terminal that causes the state of UIM to transition. FIG. 2 illustrates the operation of the telematics terminal when receiving a connection request to the mobile communication network.

We will now describe preferred embodiments of the present invention. The following description does not limit the scope of the present invention, but is described to aid understanding.
(Embodiment 1)

  FIG. 1 is a diagram for explaining the telematics terminal 1 according to the first embodiment. The telematics terminal 1 according to the first embodiment has an emergency notification function of transmitting an emergency call to the emergency contact number of the emergency center 4b using the mobile communication network 3 when an emergency such as a traffic accident occurs. And in FIG. 1, the telematics terminal 1 is installed in the vehicle 4a. In addition, it is considered that the telematics terminal 1 is equipped with various functions such as electronic mail by connecting with a computer cloud as well as the above-mentioned emergency notification function.

  As illustrated in FIG. 1, the UIM 2 mounted on the telematics terminal 1 is a type of contact IC card, and an IC module in which an IC chip is mounted on a contact substrate having eight contact terminals is used as a card substrate The physical and logical features are defined in 3GPP TS 31.101, and the file structure is defined in 3GPP TS 31.102.

  FIG. 2 is a diagram for explaining the file structure of the UIM 2. In the file structure 20 illustrated in FIG. 2, the UIM 2 according to the first embodiment includes one MF (Master File) 21 and an ADF_UIM 22 that is an application dedicated file (ADF: Application Dedicated File) that stores information related to the UIM 2. At least have. Below the ADF_UIM 22 are an EF 23a storing a subscriber identification code as a basic file (EF: Elementary File) 23 storing information necessary for connection to the mobile communication network 3, and a contact point of the emergency center 4b. An EF 23b is provided to store emergency contact numbers. Although FIG. 2 shows only the EF 23b for storing the emergency contact number as the EF 23 for storing the information related to the emergency notification, the EF 23 or the like for storing the blood type and medical history of the subscriber may be provided.

As illustrated in FIG. 1, the telematics terminal 1 according to the first embodiment includes a mobile communication unit 11, a control unit 10, and a UIM interface 12, and further, a ROM, which is a read only memory, as a memory. Only Memory (Random Memory) 13 and RAM (Random Access Memory) 14 which is volatile memory are provided.

  The mobile communication means 11 of the telematics terminal 1 is a means for the mobile communication of the telematics terminal 1, and is a circuit for modulating and transmitting an electrical signal encoded data to be transmitted using the mobile communication network 3, It comprises a circuit etc. which demodulates and demodulates the electric signal received via the mobile communication network 3, and an antenna 11a for mobile communication is connected to the mobile communication means 11 of the telematics terminal 1.

  The UIM interface 12 of the telematics terminal 1 is a means for the telematics terminal 1 to communicate with the UIM 2, and modulates an electrical signal obtained by encoding data to be transmitted to the connection terminal electrically connected to the contact terminal of the UIM 2 and the UIM 2 It comprises a circuit to transmit, and a circuit to demodulate and then demodulate an electric signal received from the UIM 2.

  Specifically, the control means 10 of the telematics terminal 1 is a CPU, and the control means 10 of the telematics terminal 1 holds information indicating the state of the UIM 2 in the RAM 14 and can be used by the telematics terminal 1 according to the state of the UIM 2 Limited functions. A computer program whose function is restricted according to the state of the UIM 2 is stored in the ROM 13.

  FIG. 3 is a first diagram for explaining the operation of the telematics terminal 1 for changing the state of the UIM 2. When the telematics terminal 1 is activated, the control means 10 of the telematics terminal 1 changes the state of the UIM 2 to the state before initialization (S1), and then executes initialization processing (S2). The change of the state of the UIM 2 is made by changing the information indicating the state of the UIM 2 held in the RAM 14.

  The state before initialization is the state before initializing UIM2. In the pre-initialization state, the control means 10 of the telematics terminal 1 has not acquired the subscriber identification code or the like from the UIM 2.

  The initialization process performed by the control unit 10 of the telematics terminal 1 includes a reset process of the UIM 2 and a process of acquiring information for connecting to the mobile communication network 3 from the UIM 2 and storing the information in the RAM 14. The information acquired from the UIM 2 includes the subscriber identification code stored in the EF 23 a and the emergency contact address stored in the EF 23 b.

  The control means 10 of the telematics terminal 1 confirms whether or not the initialization processing is successful (S3), and when the initialization processing is successful, changes the state of the UIM 2 from the state before initialization to the operating state (S4) . The active state is a state after success in the initialization processing, in which the functions available to the telematics terminal 1 are not restricted.

  If the initialization process fails, the control unit 10 of the telematics terminal 1 displays a message (for example, a car navigation display) that causes the user to confirm the installation state of the UIM 2 and the like, and then displays the state of the UIM 2 The process returns to S1 without transitioning to the operating state.

  After the control means 10 of the telematics terminal 1 succeeds in the initialization processing and changes the state of the UIM 2 to the operating state, the control means 10 executes the UIM detection processing for detecting the UIM 2 mounted on the telematics terminal 1 (S5). In the UIM detection process (S5), the control means 10 of the telematics terminal 1 transmits a predetermined command (for example, the above-mentioned STATUS command) to the UIM 2, and compares the response received from the UIM 2 with the expected value of the response. If the response received from the UIM 2 matches the expected value of the response, the control means 10 of the telematics terminal 1 determines that the detection of the UIM 2 is successful, otherwise (the expected value of the response received from the UIM 2 is If they do not match, or if a response can not be received from the UIM 2 even if the predetermined period of time is exceeded, it is determined that the detection of the UIM 2 has failed.

  Next, the control means 10 of the telematics terminal 1 confirms the result of the UIM detection process (S5) (S6), and when it is determined that the detection of the UIM 2 succeeds, a predetermined time interval (for example, 30 seconds) After elapse of time, the process returns to S5 to execute UIM detection processing (S5).

  Further, the control means 10 of the telematics terminal 1 determines that the detection of the UIM 2 has failed, and otherwise executes reinitialization processing (S7). The reinitialization process (S7) includes the reset process of the UIM 2 and the control means 10 of the telematics terminal 1 executes the reinitialization process (S7), the state of the UIM 2 held in the RAM 14, the subscription The person identification code and the emergency contact are not deleted from the RAM 14.

  The control means 10 of the telematics terminal 1 checks whether or not the reinitialization process (S7) is successful, and if the reinitialization process (S7) is successful, the process returns to S5 and executes the UIM detection process (S5) Do. Also, if the re-initialization process fails, the control means 10 of the telematics terminal 1 increments the number of failures of the re-initialization process (S7), and then the number of failures of the re-initialization process (S7) at this time is , Check whether the specified number of times set in the reinitialization process (S7) is exceeded (S9).

  If the number of failures of the reinitialization process (S7) does not exceed the specified number set in the reinitialization process (S7), the control means 10 of the telematics terminal 1 returns to S7 and the reinitialization process (S7) To do). In addition, when the number of failures of the reinitialization process (S7) exceeds the specified number set in the reinitialization process (S7), the control means 10 of the telematics terminal 1 is in the operating state of the UIM 2 After the change to the abnormal state (S10), the process waits until there is a connection request to the mobile communication network 3 (S11).

  Repeatedly executing the reinitialization process (S7) until the number of failures of the reinitialization process (S7) exceeds the specified number set in the reinitialization process (S7) This is to activate the activated UIM2. If the UIM 2 is not in an inoperable state, the UIM 2 can be activated by the reinitialization process (S 7), but the number of failures of the reinitialization process (S 7) is set in the reinitialization process (S 7) If the number is exceeded, it is considered that the UIM 2 is inoperable for some reason.

  FIG. 4 is a first diagram for explaining the operation of the telematics terminal 1 when the connection request to the mobile communication network 3 is received. When receiving a connection request to the mobile communication network 3, the control means 10 of the telematics terminal 1 first confirms whether the state of the UIM 2 is a state before initialization (S20).

  The timing at which the telematics terminal 1 according to the first embodiment receives a connection request to the mobile communication network 3 is the timing at which a service using mobile communication is received. When the service using mobile communication is a service related to emergency notification, the timing of transmitting the emergency notification is when the operation of transmitting the emergency notification is performed. The operation of sending an emergency notification is the operation of the user sending the emergency notification or the operation of the air bag. Also, in the case of a service that receives content, the timing of receiving this service is when the time interval for receiving content has passed or when an operation for receiving content is performed.

  When the state of UIM 2 is the state before initialization, the control means 10 of the telematics terminal 1 can not obtain the information necessary for connection to the mobile communication network 3 from the UIM 2, so the connection request to the mobile communication network 3 is requested. (S24), and the procedure ends without connecting to the mobile communication network 3.

  If the state of UIM2 is not a pre-initialization state, then the state of UIM2 is either an active state or an abnormal state. If the initialization processing is successful, the information necessary for connection to the mobile communication network 3 can be obtained from the UIM 2, so the control means 10 of the telematics terminal 1 requests connection to the mobile communication network 3. Check if it is the operation of sending an emergency call (S21), and if it is the operation of sending an emergency call (for example, the operation of the user who sends the emergency call or the operation of the air bag), the mobile communication Accept the connection request to network 3 (S23), connect to the mobile network using the subscriber identification code stored in RAM 14, and send an emergency call to the emergency number stored in RAM 14. This procedure ends. The emergency notification generally includes a subscriber identification code, and may include other information (for example, the blood type and medical history of the subscriber, etc.).

  Also, if the connection request to the mobile communication network 3 is not due to an operation of transmitting an emergency notification, the control means 10 of the telematics terminal 1 confirms whether the state of the UIM 2 is in the operating state. If the state of the UIM 2 is in the operating state, the control means 10 of the telematics terminal 1 accepts the connection request to the mobile communication network 3 (S23), and connects to the mobile communication network 3 using the subscriber identification code. Then this procedure ends.

  Also, if the state of the UIM 2 is not in operation, the control means 10 of the telematics terminal 1 will be in the abnormal state, so the state of the UIM 2 will be abnormal. The connection request is denied (S24), and the procedure ends without connecting to the mobile communication network 3.

As described above, according to the first embodiment described above, even if the telematics terminal 1 determines that the UIM 2 is in an abnormal state even after the UIM 2 has been successfully initialized, the emergency notification is urgently issued. You can now dial out to contacts.
Second Embodiment

  FIG. 5 is a diagram for explaining the telematics terminal 5 according to the second embodiment. The telematics terminal 5 according to the second embodiment has an emergency notification function of transmitting an emergency call to the emergency contact number of the emergency center 4b using the mobile communication network 3 when an emergency such as a traffic accident occurs. Thus, as in the first embodiment, this terminal is capable of transmitting an emergency call to the emergency contact number of the emergency center 4b even when there is an abnormality in the UIM 6.

  In the first embodiment described above, the emergency notification can be issued even if the state of the UIM 6 is abnormal regardless of the reason why the state of the UIM 6 is abnormal. If it is determined that the reason for the state becoming abnormal is due to an abnormality in the UIM 6 operating environment, and it is determined that the reason for the UIM 6 state becoming abnormal is due to an abnormality in the UIM 6 operating environment Only, it is possible to send an emergency call.

  In the second embodiment, the physical and logical features and file structure of the UIM 6 used by being attached to the telematics terminal 5 are the same as the first embodiment, but as illustrated in FIG. 5, the UIM 6 according to the second embodiment In order to give tamper resistance to failure utilization analysis, at least one operation state measurement sensor 60 for measuring the operation state of the UIM 6 is provided as in Patent Document 3, and the measurement result of the operation state measurement sensor 60 It has a security function that makes the UIM 6 inoperable when out of the reference range. The operation state measurement sensor 60 that measures the operation state of the UIM 6 means a sensor circuit that measures the clock frequency, a sensor circuit that measures the power, and a sensor circuit that measures the temperature.

  As illustrated in FIG. 5, the telematics terminal 5 according to the second embodiment includes the mobile communication unit 51, the control unit 50, and the UIM interface 52 as in the first embodiment, and further, as a memory, a read only memory And a random access memory (RAM) 54, which is a volatile memory. The mobile communication unit 51 and the UIM interface 52 included in the telematics terminal 5 according to the second embodiment are the same as those in the first embodiment, and thus the description thereof is omitted here.

  In addition, the telematics terminal 5 according to the second embodiment includes the environment measuring means 55 for measuring the environment of the UIM 6, and in FIG. 5, the environment measuring means is an acceleration sensor for measuring the acceleration applied to the UIM 6 as the environment measuring means 55. 55a and environment measurement means 55b which is a temperature sensor for measuring the internal temperature of the telematics terminal 5 are illustrated. In the second embodiment, a reference range is determined in advance for each of the environment measurement means 55, and the environment measurement means 55 outputs a warning signal indicating that the measurement result deviates from the reference range when the measurement result deviates from the reference range. It is configured to output.

  Specifically, the control unit 50 of the telematics terminal 5 is a CPU, and the control unit 50 of the telematics terminal 5 holds information indicating the state of the UIM 6 in the RAM 54 and can be used by the telematics terminal 5 according to the state of the UIM 6 Limited functions. A computer program whose function is restricted according to the state of the UIM 6 is stored in the ROM 53.

  FIG. 6 is a second diagram for explaining the operation of the telematics terminal 5 for causing the state of the UIM 6 to transition. In addition, since the processing content which concerns on S30-S35 of FIG. 7 is the same as the processing content which concerns on S1-S6 of FIG. 3, description is abbreviate | omitted here.

  If the UIM 6 can not be detected normally in the UIM detection process (S34), the control means 50 of the telematics terminal 5 determines whether an environmental abnormality has occurred by confirming whether the environment measurement means 55 outputs a warning signal (S36).

  When the environmental abnormality occurs, that is, when at least one of the environment measurement means 55 outputs a warning signal, the control means 50 of the telematics terminal 5 uses the RAM 54 as an environmental abnormality flag indicating that the environmental abnormality has occurred. After recording the occurrence of environmental abnormality (S37), change the state of UIM 6 from the operating state to the abnormal state (S38), etc., and wait until there is a request for connection to mobile communication network 3 (S39).

  Further, when no environmental abnormality occurs, that is, when all of the environmental measurement means 55 do not output a warning signal, the control means 50 of the telematics terminal 5 does not record the occurrence of the environmental abnormality, and the control means 50 of the UIM 6 The state is changed from the operating state to the abnormal state (S38), and the process waits until there is a connection request to the mobile communication network 3 (S39).

  When UIM 6 can not be detected normally in the UIM detection process (S 34), the control means 50 of the telematics terminal 5 confirms the occurrence of the environmental abnormality because the reason why the UIM 6 can not be detected normally is the UIM 6 It is to confirm whether it is due to the operating environment. For example, when the environment measurement means 55a, which is an acceleration sensor, outputs a warning signal, it can be determined that a large acceleration occurs due to an emergency or the like and the UIM 6 becomes inoperable. In addition, when the environment measurement means 55b, which is a temperature sensor, outputs a warning signal, it can be determined that the temperature rises due to an emergency or the like and the UIM 6 becomes inoperable.

  FIG. 7 is a second diagram for explaining the operation of the telematics terminal 5 when the connection request to the mobile communication network 3 is received. When receiving a connection request to the mobile communication network 3, the control means 50 of the telematics terminal 5 first confirms whether the state of the UIM 6 is a state before initialization (S40).

  The telematics terminal 5 according to the second embodiment receives the connection request to the mobile communication network 3 at the same time as the first embodiment receives the service using the mobile communication. When the service using mobile communication is a service related to emergency notification, the timing of transmitting an emergency notification is when the operation of transmitting an emergency situation is performed. The operation of sending an emergency situation is the operation of the user sending an emergency report or the operation of the air bag. Also, in the case of a service that receives content, the timing of receiving this service is when the time interval for receiving content has passed or when an operation for receiving content is performed.

  When the state of the UIM 6 is the state before the initialization, the control means 50 of the telematics terminal 5 can not acquire the subscriber identification code necessary for connecting to the mobile communication network 3 from the UIM 6, so the mobile communication network 3 is This procedure is ended without denying the connection request to the mobile communication network 3 (S45), and without connecting to the mobile communication network 3.

  If the state of the UIM 6 is not the state before initialization, the control means 50 of the telematics terminal 5 checks whether the state of the UIM 6 is in the operating state (S41). If the state of the UIM 6 is in the operating state, there is no need to restrict the function of the telematics terminal 5, regardless of whether the connection request to the mobile communication network 3 is due to the operation of sending an emergency call or not. The control means 50 of the telematics terminal 5 accepts the connection request to the mobile communication network 3 (S44), and connects to the mobile communication network 3 using the subscriber identification code held in the RAM 54, This procedure ends.

  If the state of the UIM 6 is not in operation, the state of the UIM 6 becomes abnormal, so that the control means 50 of the telematics terminal 5 sends an emergency call to the connection request to the mobile communication network 3 (for example, emergency) It is confirmed whether it is the operation by the user who sends a report or the operation of the air bag (S42).

  If not by the operation of sending an emergency notification, the control means 50 of the telematics terminal 5 rejects the connection request to the mobile communication network 3 (S45), and this procedure is performed without connecting to the mobile communication network 3. Ends.

  Further, if the connection request to the mobile communication network 3 is the operation of transmitting an emergency notification, the control means 50 of the telematics terminal 5 confirms whether the occurrence of the environmental abnormality is recorded (S43), Check whether the reason for the abnormal state of UIM6 is due to an abnormal operation of UIM6.

  If the occurrence of an environmental abnormality is recorded, the control means 50 of the telematics terminal 5 causes the abnormal state of the UIM 6 to be due to an abnormality in the operating environment of the UIM 6 and is caused by unauthorized use such as failure utilization analysis It decides that it is not a thing, accepts the connection request to the mobile communication network 3 (S44), connects to the mobile communication network 3 using the subscriber identification code held in the RAM 54, and holds it in the RAM 54 Send an emergency call to the current emergency contact number, and this procedure ends. The emergency notification generally includes a subscriber identification code, and may include other information (for example, the blood type and medical history of the subscriber, etc.).

  Further, if the occurrence of an environmental abnormality is not recorded, the control means 50 of the telematics terminal 5 does not cause the abnormal state of the UIM 6 because the abnormal state of the operating environment of the UIM 6 and the failure utilization analysis etc. It is determined that there is a possibility of unauthorized use, the connection request to the mobile communication network 3 is denied (S45), and this procedure ends without connecting to the mobile communication network 3.

  As described above, according to the second embodiment, even after the telematics terminal 5 determines that the state of the UIM 6 is abnormal, the initialization process of the UIM 6 succeeds, and the state of the UIM 6 becomes abnormal. However, it is possible to send an emergency call to the emergency contact address only when it is determined that the operation is due to the UIM 6 operating environment.

1, 5 Telematics terminal 10, 50 Control means 11, 51 Mobile communication means 12, 52 UIM interface 13, 53 ROM
14,54 RAM
55 Environmental Measurement Means 2, 6 UIM
3 Mobile communication network

Claims (1)

  1. When processing initializing the UIM, was held in the memory by reading the subscriber identification code from the UIM, it performs UIM detection process for detecting the UIM being mounted, normally the UIM in the UIM detection processing And control means for determining that the state of the UIM is abnormal and limiting usable functions, and environment measurement means for measuring the operating environment of the UIM , and
    If the control means determines that the state of the UIM is abnormal, the control means confirms from the output of the environment measurement means whether or not an environmental abnormality has occurred, and holds the confirmation result in the memory . If a connection request to the mobile communication network is received after it is determined that the status is abnormal, it is confirmed whether the connection request to the mobile communication network is due to an operation of sending an emergency call, and an emergency call is sent. If it is due to an operation to be performed, check whether the occurrence of an environmental abnormality is recorded, and only when there is an environmental abnormality, the mobile communication network using the subscriber identification code held in the memory A telematics terminal characterized by connecting to and sending out an emergency call.
JP2014051110A 2014-03-14 2014-03-14 Telematics terminal Active JP6507474B2 (en)

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JPWO2018138956A1 (en) * 2017-01-25 2019-11-07 京セラ株式会社 Wireless communication device, wireless communication device control method, and wireless communication system

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JP2002216270A (en) * 2001-01-22 2002-08-02 Denso Corp Onboard emergency report device
JP2005063044A (en) * 2003-08-08 2005-03-10 Mitsubishi Electric Corp Emergency notification system
JPWO2007029617A1 (en) * 2005-09-08 2009-03-19 日本電気株式会社 Mobile communication terminal and mobile communication method
JP5506819B2 (en) * 2009-01-27 2014-05-28 テレフオンアクチーボラゲット エル エム エリクソン(パブル) Emergency call handling

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