JP4497157B2 - Keyless system - Google Patents

Description

  The present invention relates to a keyless system used for locking / unlocking a lock provided in an automobile, a motorcycle, a house, or the like.

  Conventionally, as a system for controlling the locking and unlocking of doors of automobiles, etc., the signals transmitted from portable devices having a wireless communication function are received by the in-vehicle wireless device mounted on the automobile, and the identifications transmitted from the portable devices When the information matches the identification information registered in advance in the in-vehicle wireless device, there is one that locks and unlocks the lock provided on the door.

In such a keyless system, when a plurality of portable devices are used, if there are a plurality of portable devices in the communication area of the in-vehicle wireless device, a return signal from each portable device may cause interference and malfunction may occur. was there. Therefore, in order to prevent crosstalk of return signals, individual IDs are assigned to a plurality of portable devices, and the operation in which the in-vehicle wireless device transmits an activation signal including ID information in a predetermined transmission order is repeated a plurality of times. There has been proposed a system in which identification information is returned only by a portable device having a matched ID.
JP 2002-188340 A

  In the above-mentioned keyless system, if the correct identification information cannot be received from the portable device until the start signal including the ID information is transmitted in a predetermined transmission order from the in-vehicle wireless device and the transmission of the first round is completed, The activation signal is transmitted in the predetermined transmission order by returning to the first transmission order, but the surrounding radio wave environment is unstable even though the portable device exists in the communication area of the in-vehicle wireless device. Therefore, if the activation signal transmitted from the in-vehicle wireless device cannot be received on the portable device side or the identification information returned from the portable device cannot be received on the in-vehicle wireless device side, then the in-vehicle wireless Since the activation signal is transmitted from the device after one cycle of transmission of the activation signal, it takes a long time to successfully authenticate the identification information, and there is a problem that the usability is poor.

  The present invention has been made in view of the above problems, and its object is to provide a keyless system that can authenticate identification information in a short time even when used in a place where the radio wave environment is unstable. To provide a system.

  In order to achieve the above object, the invention of claim 1 is directed to a plurality of portable devices to which individual IDs are respectively assigned, and identification information returned from the portable device by requesting the portable device to return identification information. An electric lock device that locks and unlocks the lock when the authentication is successful, and the portable device receives the first wireless communication device and the first wireless communication device that performs wireless communication with the electric lock device. When the ID information included in the activated signal coincides with its own ID, the first wireless communication means transmits first identification information, and the electric lock device includes a plurality of portable devices. A storage means in which an ID is registered in advance, a second wireless communication means for transmitting an activation signal including ID information by a wireless signal, and receiving identification information returned from the portable device in response to the activation signal; Received wireless communication means If the information is a correct signal, the authentication means for locking / unlocking the lock, and if there is a trigger input, the ID is registered in the storage means for each portable device in a predetermined transmission order for a plurality of portable devices. The second communication control means for transmitting the activation signal from the second wireless communication means for each number of times of transmission, and the individual portable devices whose IDs are registered in the storage means are given a weight according to the use frequency, and at least the weight is the largest Transmission number setting means for setting the number of transmissions for each portable device so as to increase the number of transmissions of the portable device as compared with a portable device having a small weight is provided.

  According to a second aspect of the present invention, in the first aspect of the invention, the second communication control unit performs a process of transmitting an activation signal from the second wireless communication unit to the plurality of portable devices in the transmission order when a trigger is input. Executed one or more times until the identification information is successfully authenticated. In the first round, the number of transmissions of the activation signal to each portable device is set to the number of transmissions set by the transmission number setting means. The number of transmissions of the start signal to is set to once.

  According to a third aspect of the invention, in the first or second aspect of the invention, the electric lock device is provided with a transmission order determining means for determining a transmission order, and the transmission order determining means transmits the portable device used at the time of previous authentication. It is the first in the order, and other portable devices are rearranged in the order of earlier transmission order.

  According to a fourth aspect of the present invention, in the first or second aspect of the present invention, the electric lock device is provided with a transmission order determining means for determining a transmission order, and the transmission order determining means determines the number of times of use in a plurality of previous authentications. The most portable device is the first in the transmission order, and the other portable devices are rearranged in the order of the previous transmission order.

  According to a fifth aspect of the present invention, in the electric lock device according to any one of the first to fourth aspects of the present invention, the electric lock device is provided with a transmission order determining means for determining a transmission order according to the usage status of the plurality of portable devices, When the transmission order is changed by the determining means, the second communication control means keeps the first transmission order until the changed transmission order returns the identification information a predetermined number of times continuously from the first portable device. When the number of transmissions of the portable device is one, and the identification information is returned continuously from the first portable device with the first transmission order, the number of transmissions of the first portable device with the transmission order is set by the transmission number setting means It is characterized by being made the number of times.

  According to the first aspect of the invention, the transmission number setting means of the electric lock device assigns a weight corresponding to the frequency of use to each portable device whose ID is registered in the storage means, and at least the transmission of the portable device having the largest weight. Since the number of transmissions for each portable device is set so as to increase the number of times more than that of the portable device having a small weight, the number of transmissions of the activation signal can be increased at least for the portable device having the highest use frequency. Therefore, by increasing the number of transmissions for transmitting the activation signal to a portable device with a high probability of use, even when used in an unstable communication environment, the activation signal or identification between the portable device and the electric lock device There is an effect that it is possible to increase the probability of succeeding in exchanging information and to compensate for instability of communication.

  According to the invention of claim 2, in the first round, the number of transmissions of the activation signal to each portable device is set as the number of transmissions set by the transmission number setting means, and at least the activation signal is transmitted to the portable device having the highest use frequency. Since the number of transmissions can be increased, even when used in an unstable place in the communication environment, it is possible to increase the probability that the activation signal or identification information will be successfully exchanged between the portable device and the electric lock device. There is an effect that it is possible to compensate for the instability. In addition, if the identification information is not returned from any portable device after the first round of transmission, the identification information is transmitted even though the portable device with the highest usage frequency has multiple transmission opportunities. Is not returned, it is highly possible that this portable device does not exist within the range that can communicate with the electric lock device. Therefore, the second communication control means starts and outputs the activation signal to each portable device after the second round. By setting the number of transmissions once, there is an effect that it is possible to shorten the time required for one cycle of the process of transmitting the activation signal to each portable device.

  According to the invention of claim 3, the transmission order determination means sets the transmission order of the portable device used at the time of the previous authentication as the first, and rearranges the other portable devices in the order of the earlier transmission order, By setting the transmission order of the portable device used last time in the early order, there is an effect that the time required for authentication of the portable device can be shortened when the same portable device is continuously used. Even if a portable device different from the previous authentication is used, the transmission order of this portable device is changed to the first. Therefore, if this portable device is used from the next time, the time required for authentication from the next time There is also an effect that can be shortened.

  According to the invention of claim 4, the transmission order determining means sets the portable device having the highest number of uses in the immediately preceding multiple times of authentication as the first transmission order, and for the other portable devices, the order of the previous transmission order is early. If the mobile device that has been used the most frequently has been rearranged first, the time it takes to authenticate the mobile device There is an effect that can be shortened. In addition, the transmission order of the activation signals is not changed only by changing the portable device used for authentication once. Therefore, for example, when a plurality of users each have a portable device, the user who is frequently used is used. There is also an effect that the time required for authentication can be shortened by speeding up the transmission order of the portable devices possessed by.

  According to the invention of claim 5, even when the transmission order is changed by the transmission order determining means, the second communication control means returns the identification information continuously from the portable device whose transmission order is the first predetermined number of times. Until the first portable device in the transmission order is set to one transmission, the first portable device in the transmission order is frequently changed (that is, the portable device to be used is frequently changed). In the case), the transmission signal of the first portable device with the first transmission order is transmitted to the first portable device with the first transmission order, while the number of transmissions of the first portable device with the first transmission order is one. There is an effect that the time until the activation signal is transmitted to the portable device can be shortened.

  Hereinafter, an embodiment in which a keyless system according to the present invention is applied for locking and unlocking a motorcycle will be described with reference to FIGS. Needless to say, the use of the keyless system according to the present invention is not limited to the locking and unlocking of a motorcycle, but may be applied to a system for locking and unlocking a lock provided on a door of an automobile or a house. Yes.

  FIG. 1 is a block diagram showing a schematic configuration of a keyless entry system. Individual IDs are assigned to a plurality of portable devices 1 that are carried by a motorcycle passenger and used for locking / unlocking. If the identification information returned from the portable device is successfully authenticated, the electric lock device 10 that locks and unlocks the lock mechanism 14 that locks engine start, trunk opening and closing, etc., for example, is used. It is configured. Although only one portable device 1 is illustrated in FIG. 1, a plurality of portable devices 1 are actually registered in the electric lock device 10 and used for locking / unlocking operations.

  The portable device 1 includes a non-volatile memory 2 that stores data including unique ID information and identification information for authentication assigned to each portable device 1 in order to individually call the plurality of portable devices 1, and an electric lock A wireless communication unit (first wireless communication means) 3 that performs wireless communication with the electric lock device 10 by receiving an LF wave transmitted from the device 10 and returning an RF wave as a response signal; and wireless communication When the ID information included in the activation signal received by the unit 3 matches the own ID registered in the memory 2, the control unit (first communication control) that transmits the identification information read from the memory 2 from the wireless communication unit 3 Means) 4. Here, the control unit 4 is constituted by a microcomputer, for example. The communicable range of the portable device 1 is set to about 1 to 2 m so that the engine can be started and the trunk can be unlocked only when a passenger carrying the portable device 1 is in the vicinity of the motorcycle. .

  On the other hand, the electric lock device 10 is provided near the handle of a motorcycle, for example, and generates an access switch 11 that generates a trigger signal in response to a pressing operation, an ID assigned to each of the plurality of portable devices 1, and each portable device 1. A non-volatile memory 12 that stores data such as registered identification information, transmission order of activation signals and the number of transmissions for each portable device, and an activation signal including ID information are transmitted by LF waves, and according to the activation signal A wireless communication unit (second wireless communication means) 13 that receives identification information returned from the portable device 1 by RF waves, a lock mechanism 14 that locks the start of a motorcycle, opening and closing of a trunk, etc. And a control unit 15 configured by a computer and controlling the entire electric lock device 10.

  The operation of this keyless system will be described with reference to the flowcharts of FIGS. 2A is a flowchart for explaining the operation of the electric lock device 10, and FIG. 2B is a flowchart for explaining the operation of the portable device 1.

  When a rider of a motorcycle holds the portable device 1 registered in the electric lock device 10 in advance and approaches the motorcycle and presses the access switch 11, a trigger input is given from the access switch 11 to the control unit 15. (Step S1 in FIG. 2). When a trigger signal is input from the access switch 11, the control unit 15 serving as the second communication control unit determines the ID of the portable device 1 to be transmitted first according to the transmission order read from the memory 12 and the number of transmissions for each portable device. The activation signal including the ID of the portable device 1 to be communicated is created (step S2), and the activation signal is transmitted from the wireless communication unit 13 by the LF wave (step S3).

  In the portable device 1, when the wireless communication unit 3 receives the activation signal transmitted by the LF wave from the electric lock device 10 (step S11), the control unit 4 is registered in the memory 2 with the ID included in the activation signal. The self ID is compared (step S12). Here, if the received ID matches with its own ID, the control unit 4 causes the identification information read from the memory 2 to be transmitted as a response signal from the wireless communication unit 3 by an RF wave (step S13). If not, no response signal is returned (step S14).

  The control unit 15 of the electric lock device 10 determines whether or not a response signal has been received from the portable device 1 until a predetermined time elapses after the activation signal is transmitted in step S3 (step S4). If the response signal can be received within the predetermined time, the control unit 15 serving as the authentication unit compares the identification information included in the response signal with the identification information registered in advance in the memory 12 (step S5). Here, if the identification information included in the response signal matches the identification information registered in the memory 12, the control unit 4 outputs an unlock command to the lock mechanism 14 to unlock the lock mechanism 14. The engine can be started and the trunk can be opened (step S6). On the other hand, if the response signal cannot be received within the predetermined time in step S4 or the identification information is not authenticated in step S5, the control unit 4 sets the transmission order read from the memory 12 and the number of transmissions for each portable device. Based on this, after determining the ID of the portable device 1 to be transmitted next, creating an activation signal including the ID of the portable device 1 to be communicated, and transmitting the activation signal from the wireless communication unit 13 by the LF wave ( In step S7), the process proceeds to step S4 described above.

  To summarize the above operations, the electric lock device 10 performs the operations shown in the flowchart of FIG. Note that the flow chart of FIG. 3 shows an operation in the case where the activation signal is transmitted once to each of the plurality of portable devices 1a to 1n. In the electric lock device 10, when there is a trigger input (unlock request) (step S21), an activation signal is transmitted to the first portable device 1a according to the preset transmission order (step S22). It is determined whether or not the response signal from 1a has been received within a predetermined time (step S23). If the response signal can be received within a predetermined time, the electric lock device 10 authenticates the identification information returned from the portable device 1a (step S24), and if the authentication is successful, the lock mechanism 14 is released (step S25).

  On the other hand, when the response signal cannot be received within the predetermined time in step S23 or the authentication fails in step S24, the electric lock device 10 transmits an activation signal to the portable device 1b having the second transmission order (step S26). ), It is determined whether or not the response signal from the portable device 1b has been received within a predetermined time (step S27). Here, if the response signal can be received within the predetermined time, the electric lock device 10 authenticates the identification information returned from the portable device 1b (step S28), and if the authentication is successful, the lock mechanism 14 is released (step S25). ). On the other hand, when the response signal cannot be received within the predetermined time in step S27 or the authentication fails in step S28, the electric lock device 10 transmits an activation signal to the third portable device whose transmission order is third.

  After that, when the response signal to the activation signal cannot be received until the order of the portable device 1n whose transmission order is the last is reached, the electric lock device 10 transmits the activation signal to the portable device 1n whose transmission order is the last (step S29). ), It is determined whether or not the response signal from the portable device 1n has been received within a predetermined time (step S30). If the response signal can be received within a predetermined time, the electric lock device 10 authenticates the identification information returned from the portable device 1n (step S31). If the authentication is successful, the lock mechanism 14 is released (step S25). ). On the other hand, if the response signal cannot be received within the predetermined time in step S30, or if the authentication fails in step S31, the electric lock device 10 has received no response from the portable device 1 during one round of transmission of the activation signal. It is determined (step S32), and it is determined whether or not the number of cyclic transmissions up to the present (transmission operation for transmitting one round in a predetermined transmission order) has reached, for example, five (step S33). Here, in the electric lock device 10, if the number of cyclic transmissions is less than 5, the process returns to step S22 and the above processing is repeated. If the number of cyclic transmissions has reached 5, the lock mechanism 14 is locked. A state is continued and a process is complete | finished (step S34).

  The electric lock device 10 of the present embodiment performs the operation as described above. However, since the surrounding radio wave environment is unstable, the portable device 1 to be communicated receives the activation signal transmitted from the electric lock device 10. If a communication error occurs such that the electric lock device 10 cannot receive the identification information returned from the portable device 1 to be communicated according to the activation signal, the next activation signal is transmitted to the portable device 1 to be communicated. Since it is performed after transmitting the activation signal to all other portable devices 1, it takes a relatively long time to successfully authenticate the portable device 1 and release the lock mechanism 14. It was.

  Therefore, in the electric lock device 10 according to the present embodiment, the control unit 15 serving as the transmission count setting unit weights each portable device 1 whose ID is registered in the memory 12 according to the frequency of use, and the larger the weight, the greater the weight. Since the number of transmissions is set for each portable device 1 so as to increase the number of transmissions, and the number of transmissions of the activation signal is increased for the portable device 1 having a high priority (that is, a high frequency of use), Even when a communication error occurs, the time until the activation signal is transmitted again is shortened. Therefore, the time until the portable device 1 is successfully authenticated and the lock mechanism 14 is unlocked can be shortened.

  For example, when the IDs of four portable devices 1a, 1b, 1c, and 1d are registered in the memory 12 of the electric lock device 10, as shown in Table 1, the number of times used at the time of the latest 10 unlocking operations is as follows. If the portable device 1a is six times, the portable device 1b is three times, the portable device 1c is one time, and the portable device 1d is zero times, the control unit 15 determines whether the portable device 1a> the portable device 1b> the portable device according to the frequency of use. The weighting is performed in the order of the machine 1c> the portable machine 1d. Based on the weighting result, the number of transmissions per round is three times for the portable machine 1a, twice for the portable machine 1b, and once for both the portable machines 1c and 1d. It is said. The control unit 15 sets the number of transmissions of each portable device 1a to 1d so that the activation signal is transmitted at least once to all the portable devices 1a to 1d during one cycle of transmission of the activation signal. Yes.

  As described above, the control unit 15 of the electric lock device 10 sets the number of transmissions of the portable device 1a having the highest usage frequency to three times, and the transmission frequency of the portable device 1b having the second highest usage frequency to two times. The number of transmissions of the low portable devices 1c and 1d is one by one. By increasing the weight of the portable device 1 that is frequently used, even when the radio wave environment is unstable, the activation signal is transmitted one round. The instability of the communication can be compensated by increasing the probability of successful communication with the portable devices 1a and 1b having a higher weight.

  As shown in Table 2, if the number of times the portable devices 1a and 1b are used 5 times and the number of the portable devices 1c and 1d is 0 times as shown in Table 2, the control unit 15 The weights 1a and 1b are increased, the weights of the portable devices 1c and 1d are decreased, and the number of transmissions per round is determined by the portable devices 1a and 1b three times based on the weighting result. Both are set once. Also in this case, by increasing the weights of the frequently used portable devices 1a and 1b, even if used in a place where the radio wave environment is unstable, the portable device having a heavy weight during one round transmission of the activation signal The instability of communication can be compensated by increasing the probability of successful communication with 1a and 1b.

  In the electric lock device 10 according to the present embodiment, when the access switch 11 is pressed, it is unclear which portable device 1 is present in the vicinity, and thus the weight of the registered portable devices 1a to 1d is the highest. Even in the small portable devices 1c and 1d, the number of transmissions for each portable device 1a to 1d is set so that the activation signal is transmitted at least once during one cycle of transmission of the activation signal.

  Here, when there is a trigger input, the control unit 15 of the electric lock device 10 performs a cyclic transmission process in which an activation signal is transmitted from the wireless communication unit 13 to the plurality of portable devices 1a in a predetermined transmission order. It is executed one to a plurality of times (up to 5 times in the present embodiment) until the authentication is successful. In the first round, the number of activation signals transmitted to each portable device 1a is set to the weight of each portable device 1a. Based on the number of transmissions set based on the second round, the number of transmissions of the activation signal to each portable device 1a. In this case, in the first round, the number of transmissions of the activation signal to each portable device 1a... Is set to the number of transmissions set based on the weight of each portable device 1a. On the other hand, the number of transmissions of the activation signal can be increased, and there is an effect that the activation signal or the identification information can be reliably exchanged with the electric lock device 10. If the identification information is not returned from any of the portable devices 1a ... after the first round of transmission, the identification is performed even though the frequently used portable device 1a ... has multiple transmission opportunities. Since the information was not returned, it is highly likely that the portable device 1a... With a large weight does not exist within the communication range with the electric lock device 10, and the possibility that a portable device with a large weight exists within the communication range. It is expected that the possibility that a small mobile device will be in the communication range is the same. Therefore, the time required for the control unit 15 of the electric lock device 10 to make one cycle of transmission of the activation signal by making the number of transmissions of the activation signal to each portable device 1a. As a result, the time required for authentication can be shortened. In this embodiment, as shown in Tables 1 and 2, the control unit 15 serving as a transmission count setting unit sets each mobile device so that the number of transmissions increases as the mobile device 1 is used more frequently (has a higher weight). The number of transmissions for each portable device may be set so that only the portable device 1 having the highest use frequency (the largest weight) has a plurality of transmission times. What is necessary is just to set the frequency | count of transmission for each portable device so that the frequency | count of transmission of an activation signal may be increased rather than the portable device 1 with small weight about the portable device 1 with the largest.

  Further, the control unit 15 of the electric lock device 10 has a function of determining a transmission order for transmitting activation signals to the plurality of portable devices 1a, and registering the determined transmission order in the memory 12, and the transmission order. Operates as a determination means. That is, when there is a trigger input from the access switch 11, the control unit 15 of the electric lock device 10 sends a transmission target in a predetermined transmission order to a plurality of portable devices 1 a. Since the activation signal including the ID of the portable device 1 is transmitted from the wireless communication unit 13, if the transmission order of the activation signal is fixed, the portable device 1 that reacts quickly (the time required for authentication is short) and the reaction Mobile device 1 that is slow. Therefore, in the control unit 15, the setting of the transmission order is changed so that the activation signals are transmitted in order from the frequently used portable devices 1a..., And the keyless system can be made easy to use.

  For example, as shown in FIG. 4A, when the transmission order before the change is portable device 1a → portable device 1b → portable device 1c → portable device 1d, the electric lock device 10 follows the above transmission order according to the trigger input. As a result of transmitting the activation signal, when the identification information is returned from the portable device 1c and the authentication is successful, the control unit 15 of the electric lock device 10 determines that the portable device 1c that received the identification information at the previous authentication is the first in the transmission order. For the other portable devices 1a, 1b, and 1d, the transmission order is changed so as to be rearranged in the earlier order of the previous transmission order, and the changed transmission order is stored in the memory 12. FIG. 4B shows the transmission order after the change, and the order is portable device 1c → portable device 1a → portable device 1b → portable device 1d. As described above, the control unit 15 as the transmission order determination unit sets the transmission order of the portable device 1 used at the time of the previous authentication (unlocking) as the first, and the other transmission devices 1 have the previous transmission order. Since the rearrangement is performed in the earlier order, the time required for authentication of the portable device 1 is shortened when the same portable device 1 is continuously used by setting the transmission order of the recently used portable device 1 to the earlier order. be able to. Further, even when a portable device 1 different from the one used at the previous authentication is used this time, the transmission order of this portable device 1 is changed to the first, so that the portable device 1 is used from the next time onward. Can shorten the time required for authentication from the next time.

  Further, when the control unit 15 of the electric lock device 10 succeeds in the authentication, the history information (ID of the portable device 1 of the transmission partner) is stored in the memory 12, and the previous multiple times (for example, 10 times) are stored. At the time of authentication, the portable device 1 having the highest number of uses may be the first in the transmission order, and the other portable devices 1 may be rearranged in the order of the previous transmission order. In this way, the control unit 15 serving as a transmission order determination unit rearranges the transmission order of the portable devices 1 that have been used most frequently recently, so that the frequently used portable devices 1 are continuously used. In this case, the time required for authentication of the portable device 1 can be shortened. In addition, since the transmission order of the activation signals is not changed only by changing the portable device 1 used for authentication once, for example, when a plurality of users each have the portable device 1, the usage frequency is high. The transmission order of the portable device 1 can be advanced and the time required for authentication can be shortened.

  By the way, when the control unit 15 of the electric lock device 10 determines the change of the transmission order as described above, the transmission order after the change is repeated a predetermined number of times from the first portable device 1 until the identification information is returned. (That is, until the first portable device 1 in the transmission order is continuously used a predetermined number of times), the number of transmissions of the activation signal to the first portable device 1 in the transmission order is one, and the second and subsequent portable devices If the number of transmissions to the machine 1 is the number of transmissions at the time of the previous transmission, and the identification information is returned continuously for a predetermined number of times from the portable device 1 whose transmission order is the first, the number of transmissions to each portable device 1 is The number of transmissions set based on the weight of the device 1 may be used. When the portable device 1 with the first transmission order is frequently changed, the portable device 1 with the first transmission order is changed to another portable device 1. The transmission signal of the first portable device whose transmission order is 1 The By once, the start signal for the second and subsequent to the portable device 1 has the effect of being able to reduce the time to be transmitted.

  In addition, when the control part 15 of the electric lock device 10 determines the change of the transmission order as described above, the transmission order after the change is repeated a predetermined number of times from the first portable device 1 until the identification information is returned. (That is, until the first portable device 1 with the first transmission order is used a predetermined number of times), the activation signal is transmitted to each portable device 1 once, and the first portable device 1 with the first transmission order. When the identification information is returned continuously for a predetermined number of times, the number of transmissions to each portable device 1 may be set to the number of transmissions set based on the weight of each portable device 1, and the portable device having the first transmission order When 1 is frequently changed, the number of transmissions to each portable device 1 is set to one, so that the activation signal is transmitted to all the portable devices 1 without bias, thereby reducing the time required for authentication. can do.

  It should be noted that a wide variety of different embodiments can be configured without departing from the spirit and scope of the present invention, and the present invention is not limited to a specific embodiment.

It is a schematic block diagram which shows the system configuration | structure of this embodiment. (A) (b) is a flowchart explaining the operation | movement same as the above. It is a flowchart explaining other operation | movement same as the above. (A) (b) is explanatory drawing explaining the setting method of the transmission order same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable machine 2 Memory 3 Wireless communication part (1st wireless communication means)
4 control unit (first communication control means)
10 electric lock device 11 access switch 12 memory (memory means)
13 Wireless communication section (second wireless communication means)
14 Locking mechanism 15 Control unit (authentication means, second communication control means, transmission count setting means)

Claims (5)

A plurality of portable devices each assigned with an individual ID, and an electric lock device that requests the portable device to return identification information and locks and unlocks the lock upon successful authentication of the identification information returned from the portable device; Comprising
When the ID information included in the activation signal received by the first wireless communication unit and the first wireless communication unit that performs wireless communication with the electric lock device matches the own ID, And a first communication control means for transmitting identification information from the wireless communication means,
The electric lock device transmits the activation signal including the ID information and the storage means in which the IDs of the plurality of portable devices are registered in advance, and receives the identification information returned from the portable device in response to the activation signal. A second wireless communication unit; an authentication unit that locks / unlocks the identification information received by the second wireless communication unit; if there is a correct signal; A second communication control means for transmitting an activation signal from the second wireless communication means by the number of transmissions set for each portable device in a predetermined transmission order to the portable device, and an individual whose ID is registered in the storage means A transmission number setting means for setting the number of transmissions for each portable device so that the number of transmissions of the portable device having the largest weight is set to be larger than that of the portable device having the smallest weight. Tako Keyless system according to claim.   The second communication control unit performs a process of transmitting an activation signal from the second wireless communication unit to a plurality of portable devices in the transmission order when the trigger is input until the identification information is successfully authenticated. The number of transmissions of the activation signal to each portable device is set to the number of transmissions set by the transmission number setting means in the first round, and the number of transmissions of the activation signal to each portable device is set to 1 after the second round. The keyless system according to claim 1, wherein the keyless system is turned once.   The electric lock device is provided with a transmission order determining means for determining the transmission order. The transmission order determining means sets the portable device used at the time of previous authentication as the first transmission order, and the other portable devices for the previous time. The keyless system according to claim 1, wherein the keyless system is rearranged in the order of early transmission order.   The electric lock device is provided with a transmission order determining means for determining the transmission order. The transmission order determining means sets the portable device having the largest number of uses in the immediately preceding multiple authentications as the first in the transmission order, The keyless system according to claim 1, wherein the portable devices are rearranged in the order of the previous transmission order.   The electric lock device is provided with a transmission order determining means for determining the transmission order according to the usage status of a plurality of portable devices, and when the transmission order is changed by the transmission order determining means, the second communication control means The transmission order of the first portable device with the first transmission order is the first portable device until the identification information is returned a predetermined number of times continuously from the first portable device with the changed transmission order. 5. When the identification information is returned a predetermined number of times consecutively from the device, the number of transmissions of the mobile device having the first transmission order is set as the number of times set by the transmission number setting means. A keyless system according to claim 1.

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