Information collection system, information collection device and computer program

Abstract

To improve security for registration of an information detection device which is illegally obtained.SOLUTION: Identification information is allocated to each of a plurality of information detection devices 12. An information collection device 11 can perform registration processing to register identification information. Each of the plurality of information detection devices 12 transmits a signal SG including detected information and identification information. The information collection device 11 collects the detected information when identification information included in the signal SG matches identification information registered by the registration processing. Management information used in registration processing is allocated to the identification information. The information collection device 11 permits registration of the identification information when reception of the signal SG is performed in an order that is determined on the basis of a rule which changes a combination of the identification information and the management information.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an information collection system mounted on a mobile object, an information collection device that can be included in the system, and a computer program executable by a processor mounted on the device. [Background technology]

[0002] Patent Document 1 discloses a tire pressure monitoring system as an example of an information collection system mounted on a mobile object. The system includes multiple sensor units and a pressure monitor ECU. Each sensor unit, which serves as an information detection device, is assigned an ID code as identification information. The pressure monitor ECU, which serves as an information collection device, is capable of executing a registration process to register the ID code. Each sensor unit transmits a signal containing information corresponding to the detected tire pressure and the ID code to the pressure monitor ECU. If the ID code contained in the signal matches the ID code registered by the registration process, the pressure monitor ECU collects information corresponding to the detected tire pressure. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-074923 Summary of the Invention [Problem to be solved by the invention]

[0004] There is a demand for improved security against the registration of illegally obtained information detection devices. [Means for solving the problem]

[0005] One example aspect provided by the present disclosure is an information collection system mounted on a moving object, comprising: a plurality of information detection devices each assigned with identification information; an information collection device capable of executing a registration process for registering the identification information; It contains each of the plurality of information detection devices is configured to transmit a signal including the detected information and the identification information; the information collection device is configured to collect the detected information when the identification information included in the signal matches the identification information registered by the registration process, management information used in the registration process is assigned to the identification information; The information collection device permits registration of the identification information when the signal is received in a first order determined based on a rule for changing the combination of the identification information and the management information.

[0006] One example aspect provided by the present disclosure is an information collection device mounted on a moving object, comprising: a communication interface; a processor capable of executing a registration process for registering identification information assigned to each of a plurality of information detection devices; It is equipped with each of the plurality of information detection devices is configured to transmit a signal including the detected information and the identification information; the processor is configured to collect the detected information when the identification information included in the signal received by the communication interface matches the identification information registered by the registration process; management information used in the registration process is assigned to the identification information; The processor permits registration of the identification information when the signals are received in a first order determined based on a rule for changing the combination of the identification information and the management information.

[0007] One example aspect provided by the present disclosure is a computer program executable by a processor mounted on an information collection device mounted on a moving body and capable of executing a registration process for registering identification information assigned to each of a plurality of information detection devices, the computer program comprising: each of the plurality of information detection devices is configured to transmit a signal including the detected information and the identification information; management information used in the registration process is assigned to the identification information; When the computer program is executed, the information collection device collect the detected information if the identification information included in the signal matches the identification information registered by the registration process; In the registration process, if the signal is received in a first order determined based on a rule for changing the combination of the identification information and the management information, registration of the identification information is permitted.

[0008] According to the configurations of the above-described exemplary embodiments, registration of an information detection device is permitted only when identification information is received from all information detection devices in a first order determined using management information. This eliminates the need for an additional user interface on the information collection device for inputting management information. Because the first order is determined by changing the initial combination of identification information and management information, the number of possible combinations of the first order is a factorial of the number of information detection devices. Unless a person who illegally obtains an information detection device knows the assigned management information, it becomes difficult to identify the first order to complete registration. This improves security against the registration of illegally obtained information detection devices. [Brief explanation of the drawings]

[0009] [Figure 1] 1 illustrates an example of a functional configuration of an information collection system according to an embodiment. [Figure 2] 2 illustrates an example of the appearance of the information detection device of FIG. 1; [Figure 3] 2 illustrates a nut to which the information detecting device of FIG. 1 is attached. [Figure 4] 2 shows an example of a flow of processing executed by the information processing device of FIG. [Figure 5] 10 shows another example of the flow of processing executed by the information processing device of FIG. [Figure 6] 10 shows a registration process according to a comparative example. [Figure 7] 10 shows a registration process according to a comparative example. [Figure 8] 2 illustrates an example of a registration process executed by the information processing device of FIG. 1; [Figure 9] 10 illustrates another example of the registration process executed by the information processing device of FIG. [Figure 10] 10 illustrates another example of the registration process executed by the information processing device of FIG. [Figure 11] 10 illustrates another example of the registration process executed by the information processing device of FIG. [Figure 12] 10 illustrates another example of the registration process executed by the information processing device of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] Exemplary embodiments are described in detail below with reference to the accompanying drawings.

[0011] 1 illustrates an example of the functional configuration of an information collection system 10 according to an embodiment. The information collection system 10 includes an information collection device 11 and a plurality of information detection devices 12. The information collection device 11 is mounted at an appropriate position in a vehicle. The vehicle is an example of a moving object.

[0012] Each of the plurality of information detection devices 12 includes a housing 121 as shown in Fig. 2. The housing 121 is attached to a nut 22 of the vehicle as shown in Fig. 3. The nut 22 is rotated around its axis to fasten to a bolt that fixes the wheel 21 to the vehicle.

[0013] 1, each of the plurality of information detection devices 12 includes a sensor 122. The sensor 122 is configured to detect looseness of the nut 22. The looseness of the nut 22 is an example of the fixed state of the wheel 21. The sensor 122 can be realized by an acceleration sensor, a magnetic sensor, or the like.

[0014] Each of the multiple information detection devices 12 includes a transmitter 123. The transmitter 123 includes an antenna (not shown). The antenna is configured to be able to transmit a signal SG. The signal SG is configured to include information related to the loosening of the nut detected by the sensor 122. In addition to this information, the signal SG may also include information such as temperature and battery voltage detected by an appropriate sensor. The signal SG may be an analog signal or a digital signal depending on the specifications of the transmitter 123.

[0015] The transmitter 123 includes a storage (not shown). The storage is a memory element realized by a semiconductor memory or the like. The storage stores data corresponding to the identification information and data corresponding to the management information.

[0016] The identification information is information for identifying each information detection device 12 and distinguishing it from other information detection devices 12. Examples of the identification information include a product number, a serial number, etc. The identification information can be provided as information that can be known by an unspecified number of people.

[0017] The management information is information that can identify each information detection device 12 by being associated with the identification information. In other words, each information detection device 12 is assigned a single piece of identification information and a single piece of management information. Examples of management information include additional numerical information such as a check digit or a security code. The management information assigned to different information detection devices 12 does not necessarily have to be different. The management information is notified in advance to the owner of the information detection device 12 in a manner that is not accessible to the general public. Examples of channels through which the management information is provided include an instruction manual, a management app, etc.

[0018] The transmitter 123 includes a processor (not shown). The processor is configured to transmit the information detected by the sensor 122 and the identification information and management information stored in the storage, included in a signal SG. The identification information included in the signal SG may be in plain text or may be encrypted. The identification information included in the signal SG is encrypted. In other words, the identification information is transmitted from the transmitter 123 in a state in which the contents cannot be understood by an unspecified number of people.

[0019] A processor having the above-described functions can be realized by a dedicated integrated circuit such as a microcontroller, an ASIC, an FPGA, etc. The above-described storage can be realized by a memory element included in the dedicated integrated circuit.

[0020] Note that each of the multiple information detection devices 12 does not have a signal receiving function. In other words, the transmission of the signal SG by the transmitter 123 is not performed in response to an external request, but is performed spontaneously and unidirectionally. For example, the information detection devices 12 may be configured to start transmitting the signal SG when an acceleration sensor or the like detects that the housing 121 is in a predetermined position.

[0021] The information collection device 11 includes a communication interface 111. The communication interface 111 is configured as a hardware interface capable of receiving a signal SG transmitted from each of the multiple information detection devices 12. When the signal SG is an analog signal, the communication interface 111 includes an appropriate conversion circuit including an A / D converter.

[0022] The information collection device 11 includes a storage 112. The storage 112 is configured to store data corresponding to identification information assigned to the information detection device 12 that has undergone a registration process, which will be described later.

[0023] The information collection device 11 includes a processor 113. The processor 113 is configured to check whether registered identification information that matches the identification information included in the signal SG received by the communication interface 111 is stored in the storage 112.

[0024] The processor 113 is configured to acquire, when registered identification information that matches the identification information included in the signal SG is stored in the storage 112, information related to the loosening of the nut 22 that is included in the signal SG. In other words, when information included in the signal SG transmitted from a certain information detection device 12 matches registered identification information, the processor 113 is configured to collect information detected by the information detection device 12.

[0025] FIG. 4 illustrates the flow of processing executed by the processor 113 configured as described above.

[0026] The processor 113 determines whether the signal SG has been received by the communication interface 111 (STEP 11). The process is repeated until it is determined that the signal SG has been received (NO in STEP 11).

[0027] When it is determined that the signal SG has been received (YES in STEP 11), the processor 113 checks the identification information (STEP 12). Specifically, it checks whether the identification information that matches the identification information included in the signal SG is stored in the storage 112.

[0028] If it is determined that identification information matching the identification information included in the signal SG is stored in the storage 112, the processor 113 determines that the information detection device 12 that transmitted the signal SG has been registered (YES in STEP 13). In this case, the processor 113 acquires information related to the loosening of the nut 22, which is included in the signal SG (STEP 14).

[0029] If it is determined that identification information matching the identification information included in the signal SG is not stored in the storage 112, the processor 113 determines that the information detection device 12 that transmitted the signal SG is unregistered (NO in STEP 13). In this case, the processor 113 executes a process of notifying the user of an error (STEP 15). Note that the "notification of the error" does not necessarily have to be made to the user, and may be completed as an internal process of the processor 113.

[0030] 1, the information collection system 10 includes an output device 13. The output device 13 may be a device installed at an appropriate position in a vehicle, or may be a mobile device that can be carried by a user.

[0031] The processor 113 causes the communication interface 111 to transmit a notification control signal NC that causes the output device 13 to notify of an error. That is, the communication interface 111 is also configured as a hardware interface capable of transmitting the notification control signal NC. The notification control signal NC may be an analog signal or a digital signal depending on the specifications of the output device 13. When the notification control signal NC is an analog signal, the communication interface 111 includes an appropriate conversion circuit including a D / A converter.

[0032] The output device 13 is configured to notify the user that the signal SG is being transmitted from the unregistered information detection device 12 based on the notification control signal NC. The notification can be made through at least one of a visual notification, an auditory notification, and a tactile notification.

[0033] Next, a description will be given of a registration process for enabling information collection from an unregistered information detection device 12. Fig. 5 illustrates the flow of the registration process executed by the processor 113 of the information collection device 11.

[0034] The information collection device 11 includes a user interface (not shown) that accepts a predetermined operation (a registration start instruction) for starting the registration process. The user interface may be a button switch, a touch sensor, or the like. The predetermined operation may be a long press on the user interface.

[0035] Processor 113 determines whether a registration start instruction has been accepted (STEP 21). The process is repeated until it is determined that a registration start instruction has been accepted (NO in STEP 21).

[0036] If it is determined that the registration start instruction has been accepted (YES in STEP 21), the processor 113 allows the communication interface 111 to receive the signal SG (STEP 22). The user causes each of the multiple information detecting devices 12 to transmit the signal SG in an order determined based on a predetermined rule, which will be described later.

[0037] Subsequently, the processor 113 determines whether the signal SG has been received from the last information detection device 12 to be registered (STEP 23). The process is repeated until it is determined that the signal SG has been received from the last information detection device 12 (NO in STEP 23).

[0038] The determination as to whether the received signal SG was transmitted from the last information detection device 12 can be made based on an operation accepted by the above-mentioned user interface.

[0039] For example, an operation to specify the number of information detection devices 12 to be registered may be received after issuing a registration start instruction. If five information detection devices 12 are to be registered, five operation inputs are repeated on the user interface.

[0040] Alternatively, a long press on the user interface after the last information detection device 12 has transmitted the signal SG may inform the processor 113 that the subsequent information detection device 12 is absent.

[0041] When it is determined that the signal SG from the last information detection device 12 has been received (YES in STEP 23), the processor 113 checks whether the signals SG have been transmitted from the multiple information detection devices 12 in the order determined based on a predetermined rule (STEP 24). The order is checked using management information assigned to each information detection device 12.

[0042] 6 and 7 illustrate a method for determining the registration order of a plurality of information detection devices 12 according to a comparative example.

[0043] The combination of identification information and management information assigned to each information detection device 12 according to this example is as shown in Table T61. Table T62 shows the order determined so that the numerical values ​​of the management information are in ascending order. In this case, the user causes the multiple information detection devices 12 to transmit signals SG so that the assigned numbers are in the order 4 → 3 → 2 → 5 → 1.

[0044] As illustrated in FIG. 1, a user can add a new information detection device 12A to the information collection system 10 through a registration process. In FIG. 7, the information detection device 12A is assigned the number 6 (table T71). When additionally registering the information detection device 12A, it is necessary to have all information detection devices 12, including the information detection device 12A, transmit signals SG in the above order. In this example, the additional registration of the information detection device 12A is completed by having the information detection devices 12 transmit signals SG so that the assigned numbers are in the order 4 → 3 → 6 → 2 → 5 → 1 (table T72).

[0045] If the information detection device 12A is obtained illegally, the user can know the identification information assigned to the information detection device 12A, but cannot know the assigned management information. Therefore, the correct signal transmission sequence for performing additional registration cannot be known. However, since the signal transmission sequence when the information detection device 12A is not included is known, the correct sequence can be identified by changing the transmission sequence of the information detection device 12A and attempting the registration process up to six times.

[0046] In the configuration according to this embodiment, the management information is first rearranged "so that the numerical values ​​of the management information are in ascending order," thereby obtaining the order shown in T81.

[0047] Next, a rule for changing the combination of identification information and management information is applied. In this example, the combination is changed so that the management information in the nth row in the table T81 is assigned to the identification information in the (n+1)th row (the management information in the last row is assigned to the identification information in the first row) (table T82). Note that any rule can be applied as long as the combination of identification information and management information can be changed.

[0048] Furthermore, the product is calculated for each combination of the changed identification information and management information, and the calculation results are sorted in ascending order (Table T83). The sorting rule for the calculation results may be descending order or any other arbitrarily determined rule.

[0049] The signals SG are transmitted from the plurality of information detection devices 12 in the order (first order) determined based on the above rule. In this example, the signals SG are transmitted from the plurality of information detection devices 12 so that the assigned numbers are in the order 2 → 3 → 1 → 5 → 4.

[0050] The user may be notified of the above rules in advance along with the management number. The correct registration order determined using the rules may be calculated manually by the user or may be automatically provided using the management app.

[0051] The above rules are also preset in processor 113 of information collection device 11. Processor 113 acquires a combination of identification information and management information each time signal SG is received by communication interface 111, and stores the order in which the identification information was received. When all combinations have been acquired, processor 113 rearranges the combinations based on the above rules, and determines whether the order of the resulting identification information matches the order in which it was received.

[0052] If it is determined that the two orders match (YES in STEP 24 of FIG. 5), data corresponding to at least the identification information of the multiple information detection devices 12 subjected to the registration process is stored in the storage 112 (STEP 25). This completes the registration of the information detection devices 12.

[0053] If it is determined that the two orders do not match (NO in STEP 24 of FIG. 5), the processor 113 causes the communication interface 111 to transmit a notification control signal NC to cause the output device 13 to notify the user that the transmission order is incorrect (STEP 26). The output device 13 is configured to notify the user of the registration failure based on the notification control signal NC. The notification can be made through at least one of a visual notification, an auditory notification, and a tactile notification.

[0054] 9 illustrates an example of registering a new information detecting device 12A using the method according to this embodiment. Table T91 shows a state in which the information detecting device 12A and other information detecting devices have been rearranged "so that the numerical values ​​of the management information are in ascending order."

[0055] Next, as shown in Table T92, the rules for changing the combination of identification information and management information are applied, and the product is calculated for each combination of changed identification information and management information. Finally, as shown in Table T93, the calculation results are sorted in ascending order.

[0056] Therefore, in order to additionally register the information detecting device 12A, it is necessary to transmit signals SG from the plurality of information detecting devices 12 so that the assigned numbers are in the order 4→3→6→2→5→1.

[0057] If the information detection device 12A has been obtained illegally, the user attempting to perform additional registration will not be able to know the management information assigned to the information detection device 12A, and therefore a maximum of 6 factorial attempts (720 attempts) will be required to complete the additional registration in the correct signal transmission order.

[0058] That is, according to the configuration of this embodiment, registration of an information detection device 12 is permitted only when identification information is received from all information detection devices 12 in the correct order determined using the management information. This eliminates the need for an additional user interface on the information collection device 11 side for inputting management information. Because the "correct order" is determined by changing the initial combination of identification information and management information, the number of possible combinations of the "correct order" is a factorial of the number of information detection devices 12. Unless a person who illegally obtains an information detection device 12 knows the assigned management information, it becomes difficult to determine the "correct order" required to complete registration. This improves security against the registration of illegally obtained information detection devices 12.

[0059] In this embodiment, the identification information includes a numerical value. The rule for determining the "correct order" includes multiplying the identification information and the management information. The multiplication is an example of a calculation using the numerical value included in the identification information.

[0060] According to this configuration, it is possible to increase the difficulty of inferring the "correct order" from the identification information without excessively increasing the processing load on the processor 113 of the information collection device 11.

[0061] 10 shows another example of a method for determining the registration order of a plurality of information detecting devices 12. Table T101 illustrates a case where an information detecting device 12A assigned number 6 is added to information detecting devices 12 assigned numbers 1 to 5 so that the numerical values ​​of the identification information are in ascending order.

[0062] Next, the rules for changing the combination of identification information and management information are applied, as shown in the table of T102. The rules are the same as those explained with reference to Figures 8 and 9, so a repeated explanation will be omitted.

[0063] In this example, a modulo operation is performed on the combination of the changed identification information and management information. That is, the numeric value of the identification information is divided by the numeric value of the management information to obtain the remainder. The remainder is then sorted in ascending order (Table T103). The sorting rule for the remainder may be descending order or any other arbitrarily determined rule.

[0064] The processor 113 of the information collection device 11 can be configured to generate identification information and management information assigned to a virtual information detection device and execute a registration process when the number of multiple information detection devices 12 is less than a threshold. Examples of the threshold include 4 or 5.

[0065] 11 illustrates a case where the number of information detecting devices 12 is 3. In this case, the processor 113 generates a combination of identification information and management information that is the same as that of the information detecting device 12 to which the smallest value of identification information is assigned, and assigns it to the virtual information detecting device (table T111).

[0066] The rule that "the information detection device 12 with the smallest numerical value of the identification information is set as the virtual information detection device" is notified to the user in advance. The information detection device 12 assigned to the virtual information detection device may be the information detection device 12 with the largest numerical value of the identification information, or may be an information detection device 12 determined based on any other rule. The number of virtual information detection devices may be more than one.

[0067] Next, the rules for changing the combination of identification information and management information are applied, as shown in the table of T112. The rules are the same as those explained with reference to Figures 8 and 9, so a repeated explanation will be omitted.

[0068] Next, a remainder operation is performed on the combination of the changed identification information and management information in the same manner as in the example of Fig. 10. After that, the calculated remainders are rearranged in ascending order (table T113).

[0069] Therefore, the user causes the multiple information detection devices 12 to transmit the signal SG so that the assigned numbers are in the order of 1 → 3 → 1 → 2. In other words, the order is determined so that the signal SG is transmitted multiple times from at least one information detection device 12.

[0070] With this configuration, even if the number of multiple information detection devices 12 included in the information collection system 10 is small, the number of ``correct order'' combinations required to complete the registration process can be increased (in this example, from 6 to 18), thereby preventing a decrease in security against the registration of information detection devices 12 that have been obtained illegally.

[0071] As another example, when the number of multiple information detection devices 12 is less than a threshold value, the processor 113 of the information collection device 11 can be configured to add an order (second order) determined by changing a predetermined rule to an order (first order) determined based on the predetermined rule.

[0072] 12 illustrates a case where the number of information detecting devices 12 is three (table T121). In this example, in addition to the rule of using modular arithmetic as in the example of FIG. 11, the rule of using multiplication as in the example of FIG. 8 is applied (table T122).

[0073] As shown in the table of T123, the processor 113 determines the final registration order by adding the order determined based on the rule using multiplication (second order) to the order determined based on the rule using modular arithmetic (first order). In this example, the user causes the multiple information detection devices 12 to transmit signals SG so that the assigned numbers are in the order 1 → 3 → 2 → 1 → 3 → 2.

[0074] This configuration also increases the number of "correct sequence" combinations required to complete the registration process (increased from 6 to 36 in this example). Therefore, even if the number of information detection devices 12 included in the information collection system 10 is small, it is possible to prevent a decrease in security against the registration of an information detection device 12 that has been illegally obtained.

[0075] The processor 113 of the information collection device 11, which has the various functions described above, may be realized by a general-purpose microprocessor operating in cooperation with general-purpose memory. Examples of general-purpose microprocessors include a CPU, an MPU, and a GPU. Examples of general-purpose memory include a ROM and a RAM. In this case, a computer program that realizes the various functions described above may be stored in the ROM. The ROM is an example of a non-transitory computer-readable medium that stores a computer program. The general-purpose microprocessor specifies at least a portion of the program stored in the ROM, deploys it on the RAM, and executes the above-described processing in cooperation with the RAM. The computer program may be pre-installed in the general-purpose memory, or may be downloaded from an external server device via a communication network and then installed in the general-purpose memory. In this case, the external server device is an example of a non-transitory computer-readable medium that stores a computer program. Note that the general-purpose memory may be used as the storage 112.

[0076] The processor 113 may be realized by a dedicated integrated circuit such as a microcontroller, ASIC, or FPGA that can execute the computer program. In this case, the computer program is pre-installed in a memory element included in the dedicated integrated circuit. The memory element is an example of a computer-readable medium that stores a computer program. The processor 113 may also be realized by a combination of a general-purpose microprocessor and a dedicated integrated circuit.

[0077] The various configurations described above are merely examples for facilitating understanding of the present disclosure. Each configuration example can be appropriately modified or combined with other configurations within the scope of the present disclosure.

[0078] In the above embodiment, encrypted management information is included in the signal SG transmitted from the information detecting device 12. According to this configuration, the processor 113 of the information collecting device 11 only needs to be equipped with an algorithm for decrypting the management information, so that an increase in the processing load can be suppressed.

[0079] However, if rules for generating management information from identification information are shared between the user and information collecting device 11, a configuration may be adopted in which management information is not included in the signal SG transmitted from information detecting device 12. In this case, processor 113 of information collecting device 11 internally generates management information by applying the rules to identification information included in signal SG received by communication interface 111, and can determine the signal transmission order for completing registration processing based on the identification information and the management information. Such a configuration can simplify the configuration of transmitter 123 in information detecting device 12.

[0080] In the above embodiment, each of the information detection devices 12 transmits the signal SG unidirectionally and autonomously. However, each of the information detection devices 12 may be configured to transmit the signal SG in response to a request signal transmitted from the information collection device 11.

[0081] In the above embodiment, the information detection device 12 is attached to the nut 22 fastened to the bolt that fixes the wheel 21 to the vehicle. However, in the case of a configuration in which the wheel 21 is fixed by fastening a bolt to a female thread provided on the vehicle side, the information detection device 12 can be attached to the bolt.

[0082] In the above embodiment, the information detected by the information detection device 12 corresponds to the state of fixation of the wheels 21 to the vehicle. However, the information detected by the information detection device 12 may also correspond to the state of sensors mounted at multiple locations on the vehicle to acquire various types of information.

[0083] The information collection system 10 may be mounted on a moving body other than a vehicle. Examples of other moving bodies include trains, airplanes, and ships. The moving body may not require a driver. Information detected by the information detection device 12 may correspond to the fixed state of a specific member relative to the moving body in order to prevent the specific member from detaching from the moving body.

[0084] The configurations listed below also form part of this disclosure. Item 1: An information collection system mounted on a moving body, a plurality of information detection devices each assigned with identification information; an information collection device capable of executing a registration process for registering the identification information; It contains each of the plurality of information detection devices is configured to transmit a signal including the detected information and the identification information; the information collection device is configured to collect the detected information when the identification information included in the signal matches the identification information registered by the registration process, management information used in the registration process is assigned to the identification information; the information collecting device permits registration of the identification information when the signal is received in a first order determined based on a rule for changing the combination of the identification information and the management information. Information gathering system. Item 2: the identification information includes a numerical value; The rule includes an operation using the numerical value. Item 1. The information collection system according to item 1. Item 3: The management information is encrypted and included in the signal. Item 1 or 2. The information collection system according to item 1 or 2. Item 4: the information collection device generates the management information based on the identification information included in the signal. Item 1 or 2. The information collection system according to item 1 or 2. Item 5: When the number of the plurality of information detection devices is less than a threshold, the information collection device generates identification information and management information assigned to a virtual information detection device, and executes the registration process using the identification information and the management information. 5. The information collection system according to any one of items 1 to 4. Item 6: when the number of the plurality of information detection devices is less than a threshold, the information collection device adds a second order determined by changing the rule to the first order. 5. The information collection system according to any one of items 1 to 4. Item 7: the detected information corresponds to a fixation state of the wheels to the moving body; 7. The information collection system according to any one of items 1 to 6. [Explanation of symbols]

[0085] 10: Information collection system, 11: Information collection device, 111: Communication interface, 113: Processor, 12: Information detection device, 21: Wheel, SG: Signal

Claims

1. An information collection system mounted on a moving body, a plurality of information detection devices each assigned with identification information; an information collection device capable of executing a registration process for registering the identification information; It contains each of the plurality of information detection devices is configured to transmit a signal including the detected information and the identification information; the information collection device is configured to collect the detected information when the identification information included in the signal matches the identification information registered by the registration process, management information used in the registration process is assigned to the identification information; the information collecting device permits registration of the identification information when the signal is received in a first order determined based on a rule for changing the combination of the identification information and the management information. Information gathering system.

2. the identification information includes a numerical value; The rule includes an operation using the numerical value. The information collection system according to claim 1 .

3. the management information is encrypted and included in the signal; The information collection system according to claim 1 .

4. the information collection device generates the management information based on the identification information included in the signal. The information collection system according to claim 1 .

5. When the number of the plurality of information detection devices is less than a threshold, the information collection device generates identification information and management information assigned to a virtual information detection device, and executes the registration process using the identification information and the management information. The information collection system according to claim 1 .

6. when the number of the plurality of information detection devices is less than a threshold, the information collection device adds a second order determined by changing the rule to the first order. The information collection system according to claim 1 .

7. the detected information corresponds to a fixation state of a wheel to the moving body; The information collection system according to claim 1 .

8. An information collection device mounted on a moving body, a communication interface; a processor capable of executing a registration process for registering identification information assigned to each of a plurality of information detection devices; It is equipped with each of the plurality of information detection devices is configured to transmit a signal including the detected information and the identification information; the processor is configured to collect the detected information when the identification information included in the signal received by the communication interface matches the identification information registered by the registration process; management information used in the registration process is assigned to the identification information; the processor permits registration of the identification information when the signal is received in a first order determined based on a rule for changing the combination of the identification information and the management information. Information gathering device.

9. A computer program executable by a processor mounted on an information collection device mounted on a moving body and capable of executing a registration process for registering identification information assigned to each of a plurality of information detection devices, the computer program comprising: each of the plurality of information detection devices is configured to transmit a signal including the detected information and the identification information; management information used in the registration process is assigned to the identification information; When the computer program is executed, the information collection device collect the detected information if the identification information included in the signal matches the identification information registered by the registration process; In the registration process, when the signal is received in a first order determined based on a rule for changing the combination of the identification information and the management information, registration of the identification information is permitted. Computer program.

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