JP5137313B2 - Entrance / exit management system - Google Patents

Description

The present invention relates to a vehicle / person entrance / exit management apparatus, an entrance / exit management system, and an entrance / exit management method using a wireless ID tag. In particular, when the communication area of the entry wireless ID reader and the communication area of the entry wireless ID reader overlap with the traveling direction of the vehicle or person due to the narrow road width of the road where the vehicle or person enters or exits. performing vehicle or human entrance and exit management, vehicle or human entrance and exit management apparatus using a wireless ID tag, it relates to an entrance and exit management method and entrance and exit management system.

  In a conventional entrance / exit management system using a wireless ID tag or an IC card, is this person entering the room to determine whether the individual approaching the entrance / exit is an entrance person or an exit person? There is an entrance / exit management system provided with an entrance / exit direction detection sensor that outputs a detection signal that varies depending on whether the user is in the middle of leaving the room (for example, see Patent Document 1).

Japanese Unexamined Patent Publication No. 2003-213998 (page 5, FIG. 2)

In recent years, not only entrance / exit management for people but also a vehicle entrance / exit management system for vehicles entering and leaving buildings such as factories has been proposed. For example, in a vehicle entrance / exit management system, an entrance / exit leader capable of long-distance transmission is installed beside a road on which the vehicle travels. The entrance reader reads the data of the wireless ID tag mounted on the vehicle that will enter the factory (hereinafter referred to as the entrance vehicle) to authenticate the entrance, and the exit reader leaves the factory. The data of the wireless ID tag mounted on the vehicle (hereinafter referred to as a leaving vehicle) is read to authenticate the leaving.

However, the entrance reader reads only the data of the wireless ID tag mounted on the entering vehicle, and the exit reader does not always read only the data of the wireless ID tag mounted on the exiting vehicle. In a situation where the road width of the road to be entered is narrow, the entrance reader may read the data of the wireless ID tag of the exiting vehicle in addition to the data of the wireless ID tag of the entering vehicle.
For this reason, in the conventional entrance / exit management system, the exit is authenticated immediately after the vehicle or person to be managed enters, or the entrance authentication is performed immediately after the vehicle or person to be managed leaves. There has been a problem of performing wrong authentication such as.

As a countermeasure for this problem, an entry / exit direction detection sensor may be installed. However, it is necessary to install an entry / exit direction detection sensor, which causes an increase in cost. Further, when the trouble in the entering and leaving direction detection sensor occurs can manage vehicle or person to be managed for entry and exit to the can not determine whether a managed to exit or to be managed for admission There was a problem of disappearing.

The present invention has been made in order to solve the above-described problems, and prevents entry / exit of a vehicle or a person by using a wireless ID tag to prevent erroneous recognition of the entry / exit of the vehicle or person , thereby providing highly reliable entrance / exit management. An object is to obtain a device , an entrance / exit management system, and an entrance / exit management method .

The entrance / exit management system according to claim 1 of the present invention comprises:
An entrance / exit management system for managing entrance / exit of a vehicle or a person who is a management target equipped with a wireless ID tag and enters / exits the facility,
Forming a communication area for admission management to enter the facility, receiving radio waves from the wireless ID tag mounted on the management object in the communication area for admission management, reading identification data, and reading the identification data And an entry reader device for outputting the readout time when the identification data is read out as entrance identification data,
The communication area for the entrance management object overlaps with the front and rear of the direction of travel of the management object, and the communication area for the exit management object that leaves the facility is formed closer to the facility than the communication area for the entrance management object And receiving the radio wave from the wireless ID tag mounted on the management target in the communication area for the exit management target, reading the identification data, and identifying the identification data and the read time when the identification data is read out. An exit reader device that outputs as
The management object is identified based on the input identification data and the exit identification data that have been input, and when the same management object is used, the time of reading the entrance identification data and the time of reading the exit identification data Take the difference
Comparing the difference with a preset threshold time, and when the difference is smaller than the threshold time, the later of the entry identification data read time and the exit identification data read time An entrance / exit management device that determines that the entrance identification data or the exit identification data is erroneous identification data,
The entrance / exit management device inputs the entrance identification data read by the entrance reader device from the wireless ID tag mounted on the same management target when the difference is larger than the threshold time. Then, after the exit identification data read by the exit reader device is input,
Determining that the identification data of the wireless ID tag mounted on the same management target is erroneous identification data when the identification reader device reads the identification data before the entry reader device. It is a feature.

The entrance / exit management system according to claim 2 of the present invention comprises:
An entrance / exit management system for managing entrance / exit of a vehicle or a person who is a management target equipped with a wireless ID tag and enters / exits the facility,
Forming a communication area for admission management to enter the facility, receiving radio waves from the wireless ID tag mounted on the management object in the communication area for admission management, reading identification data, and reading the identification data And an entry reader device for outputting the readout time when the identification data is read out as entrance identification data,
It overlaps with the communication area for the entrance management object before and after the direction of travel of the management object, and the communication area for the exit management object leaving the facility is opposite to the facility for the entrance management object communication area. The identification data is read out by receiving radio waves from the wireless ID tag mounted on the management target in the communication area for the exit management target, and the reading time at which the identification data is read out. An exit reader device for outputting as exit identification data;
The management object is identified based on the input identification data and the exit identification data that have been input, and when the same management object is used, the time of reading the entrance identification data and the time of reading the exit identification data Take the difference
The difference is compared with a preset threshold time, and when the difference is smaller than the threshold time, the earlier of the entry identification data read time and the exit identification data read time An entrance / exit management device that determines that the entrance identification data or the exit identification data is erroneous identification data,
The entrance / exit management device inputs the entrance identification data read by the entrance reader device from the wireless ID tag mounted on the same management target when the difference is larger than the threshold time. Then, after the exit identification data read by the exit reader device is input,
Determining that the identification data of the wireless ID tag mounted on the same management target is incorrect identification data when the identification reader device reads the identification data before the exit reader device. It is a feature.

According to the present invention, it is possible to prevent erroneous recognition of entrance / exit in the entrance / exit management of a vehicle or a person using a wireless ID tag, and to obtain a highly reliable entrance / exit management system .

  In Embodiments 1 to 3 of the present invention, management of entry / exit of a vehicle will be described, but it may be applied to, for example, management of entrance / exit of a person other than the vehicle.

Embodiment 1 FIG.
Embodiments of the present invention will be described below.
FIG. 1 is a diagram for explaining the configuration of an entrance / exit management system according to the first embodiment.
In FIG. 1, this entrance / exit management system performs entrance / exit management of vehicles entering / exiting a factory, and includes an entrance reader antenna 11 and an entrance reader antenna 11 that form an entrance reader communication area 30. The reader device 10, the exit reader antenna 21 that forms the exit reader communication area 40, the exit reader device 20 having the exit reader antenna 21, the vehicle that receives data from the entrance reader device 10 and the exit reader device 20 An entrance / exit management device 50 is provided for managing entrance / exit.

  In the present invention, the communication area of the ID reader for entry and the communication area of the ID reader for exit overlap in the traveling direction of the vehicle due to reasons such as the narrow road width, and the entrance leader communication area 30 when entering or leaving the vehicle. In the situation where the vehicle passes through both the exit leader communication area 40 and the exit leader communication area 40, entry / exit management of the vehicle is performed. In the first embodiment, as an example, the exit leader communication area 40 is the entrance leader communication. The case where it forms in the factory side which performs entrance / exit management rather than the area 30 is demonstrated.

In FIG. 1, a vehicle 1 is equipped with a wireless ID (identification) tag 70. A vehicle 1 ′ indicated by a broken line schematically shows a place where the vehicle 1 entering the factory leaves the factory.
The wireless ID tag 70 is also referred to as an RFID (Radio Frequency identification) tag or an IC chip, and communicates with the reader device by radio waves or electromagnetic waves. In FIG. 1, the wireless ID tag 70 communicates with the entrance reader device 10 and the exit reader device 20 by radio waves such as electromagnetic waves.

The entrance reader device 10 and the exit reader device 20 are installed on the side of the road 80 near the entrance of the factory, and communicate wirelessly with the wireless ID tag 70 mounted on the vehicle.

FIG. 2 is a block diagram of the entrance / exit management system.
The entrance reader device 10 stores an entrance reader antenna 11a that transmits and receives radio waves to and from the wireless ID tag 70, a control unit 12a that performs communication control, and a reader device ID number assigned to each reader device. A memory 13a and a clock 14a for outputting the current time.
The exit reader device 20 has the same configuration as the entrance reader device 10, and is provided for each reader device 11b, an entrance reader antenna 11b that transmits and receives radio waves to and from the wireless ID tag 70, and a control unit 12b that performs communication control. A memory 13b that stores the reader ID number and a clock 14b that outputs the current time.

The entrance / exit management device 50 is connected to the processing unit 51 and the processing unit 51 for inputting information from the entrance reader device 10 and the exit reader device 20 and executing the entrance / exit management processing, and the entrance reader device 10 and the exit reader. A traffic history database 52 that records the traffic history of vehicles detected by the device 20, a registered vehicle database 53 that records vehicle ID numbers of registered vehicles, and a reader device database 54 that registers ID numbers of reader devices are provided.

FIG. 3 is a block diagram of the wireless ID tag 70.
The wireless ID tag 70 includes an antenna 72 that transmits and receives information to and from the entrance reader device 10 and the exit reader device 20, a control unit 73 that performs communication control, and a memory unit 74 that stores a vehicle ID number assigned to each vehicle. Is provided.

  Next, the operation of the entrance / exit management system will be described with reference to FIGS.

In the present invention, in a vehicle that frequently enters and leaves the factory, “does not leave before entering”, “does not leave for a predetermined time (for example, several seconds) after entering the factory. ”,“ Vehicle entry / exit management is performed on the premise that there will be no entry for a predetermined time (for example, several seconds after leaving the factory) ”.

Details of entrance / exit management will be described below.
FIG. 4 is a flowchart showing the operation of the processing unit 51 of the entrance / exit management system according to Embodiment 1 of the present invention. FIG. 9 is a diagram for explaining a reading state of the wireless ID tag when the vehicle enters.

  First, the case where the vehicle 1 enters the premises will be described in order.

When the vehicle 1 equipped with the wireless ID tag 70 enters the entrance reader communication area 30, the entrance reader device 10 receives the vehicle ID number from the wireless ID tag 70 mounted on the vehicle 1 via the entrance reader antenna 11 a. 71 is read (see FIG. 9A).
The entrance reader device 10 transmits radio waves via the entrance reader antenna 11 and electrically activates the wireless ID tag 70 in the entrance reader communication area 30. The wireless ID tag 70 retrieves the vehicle ID number from the memory 74 and places the vehicle ID number 100a on the radio wave and transmits it to the entrance reader antenna 11.
The controller 12a receives the radio wave from the wireless ID tag 70 via the entrance reader antenna 11a, demodulates the received radio wave, and acquires the vehicle ID number 100a of the vehicle that has entered the entrance reader communication area 30.

When the control unit 12a receives the radio wave from the wireless ID tag 70, the control unit 12a acquires the reception time 101a that is the reception time from the clock 14a.
Further, when receiving the radio wave from the wireless ID tag 70, the control unit 12a acquires the reader device ID number 102a from the memory 13a.

The control unit 12a transmits the vehicle ID number 100a, the reception time 101a, and the reader device ID number 102a as entry / exit vehicle information 110a to the processing unit 51 of the entrance / exit management device 50 by wire or wirelessly.
FIG. 6 is an example of entry / exit vehicle information 110a.

  The processing unit 51 of the entrance / exit management device 50 receives the entrance / exit vehicle information 110a from the entrance reader device 10 (S101 in FIG. 4).

Next, the processing unit 51 accesses the registered vehicle database 53 and performs an authentication process as to whether the vehicle in the entrance reader communication area 30 is a registered vehicle (S102).
The authentication process is performed based on the vehicle ID number. If it is a registered vehicle, the process proceeds to the next step S110, and if it is not a registered vehicle, an alarm process such as blinking a red signal is performed (S103).

The processing unit 51 registers the received entrance / exit information 110a in the passage history database 52 (S110).

FIG. 7A shows an example of the traffic history database 52 after database registration.
The traffic history database 52 is a database in which the entry / exit vehicle information 110 is registered, and the entry / exit vehicle information 110 received in the previous step S101 is registered in time series. The registration data includes a reader device ID number 102, a reception time 101, and a vehicle ID number 100. In addition, a flag indicating whether entry authentication has been completed, exit authentication has been completed, or entrance / exit has been completed is recorded. Has been.

The processing unit 51 determines whether or not the received entry / exit vehicle information 110a is information from the entrance reader device (S111).

The reader device database 54 stores an ID number of a reader device assigned in advance, information about whether the reader device is for entry or exit, and attribute information such as the installation location.
The processing unit 51 searches the reader device database 54 for the reader device ID number of the received entry / exit vehicle information 110a to determine whether the entry / exit vehicle information 110a is information from the entrance reader device. . If the information is from the entrance reader device, the process proceeds to the next step of S120.

Even if the processing unit 51 determines that the received entry / exit vehicle information 110a is information from the reader device for entrance, the processing unit 51 uses only the received entry / exit vehicle information 110a as information from the vehicle that is about to enter. There is no judgment as to whether there is information from the vehicle that is about to leave. This is because the vehicle which is about to leave also passes through the reader communication area 30 for entrance.
Therefore, the processing unit 51 accesses the traffic history database 52 and searches for the vehicle ID number of the received entry / exit vehicle information 110a.

Specifically, the processing unit 51 targets the data whose reception time recorded in the traffic history database 52 is between the current time and X (seconds) before the vehicle ID number of the received entry / exit vehicle information 110a. Search for. However, the entry / exit vehicle information 110a most recently registered in S102 is excluded from the search target.
As a result, it is determined whether the received entry / exit vehicle information 110a is information from the vehicle that is about to enter or information from the vehicle that is about to leave.
If the vehicle is about to leave, the entry reader device 10 passes the exit reader communication area immediately before reading the vehicle ID number, the exit reader device 20 reads the vehicle ID number of the vehicle, and enters and exits the vehicle. This is because the information 110b is transmitted to the entrance / exit management device 50.

Here, the setting of the first avoidance time (X (seconds)) will be described.
In the first embodiment, when the vehicle ID is authenticated by the wireless ID tag, the vehicle passes through the entrance reader communication area 40 after passing through the entrance reader communication area 30. In this way, after passing through the entrance reader communication area 40, the exit leader communication area 40 also passes, so that the vehicle is authenticated as having exited in the exit leader communication area 40, resulting in a problem of erroneous authentication. .
Similarly, in the case of a vehicle that is about to leave, the vehicle is authenticated as an entrance vehicle by passing through the entrance leader communication area 30 after passing through the exit leader communication area 40, thus causing a problem of erroneous authentication.

For this reason, the processing unit 51 does not leave before entering, “does not leave for a predetermined time (for example, several seconds) after entering the factory”, “leaves from the factory” After that, entry / exit determination processing is performed on the premise that there will be no entry for a predetermined time (for example, several seconds).

Here, after the vehicle passes the exit leader communication area 40 and leaves the factory, it may actually enter again in the time interval from passing through the entrance leader communication area to entering the factory. The shortest time is set as the first avoidance time (X (seconds)).
For example, even if the vehicle is turned over immediately after leaving the exit leader communication area 40 and exits again, X (seconds) after passing the exit leader communication area 40 Sets the first avoidance time (X (seconds)), assuming that it does not enter the reader communication area for entrance.

The first avoidance time (X (seconds)) is, for example, 15 seconds, but can be set according to the installation conditions of the entrance reader device and the exit reader device.

Similarly, the shortest time during which the user can actually leave is set as the second avoidance time (Y (seconds)) until the user leaves after entering. The second avoidance time (Y (second)) is, for example, 15 seconds, but can be set according to the installation conditions of the entrance reader device and the exit reader device.

In S120, the vehicle ID number of the received entry / exit vehicle information 110a is searched for data in which the reception time recorded in the traffic history database 52 is between the current time and X (seconds) before. If not, the processing unit 51 authenticates that the entrance / exit information 110 received by the entrance reader antenna 11 is correct entrance information (S125).
Then, at the location corresponding to the entrance / exit vehicle information 110a registered in the traffic history database 52, a flag indicating that the entrance authentication has been completed is set in the entry authenticated column of the traffic history database 52 (FIG. 7B). In the example of Fig. 7B, "1" is recorded in the entry-authenticated field (S126).

And while entrance / exit management is continuing, it returns to S101 via S140.

Next, the entering vehicle that has passed through the entrance leader communication area 30 enters the exit leader communication area 40 (FIG. 9B).
The exit reader device 20 reads the vehicle ID number 71 from the wireless ID tag 70 mounted on the vehicle 1 via the exit reader antenna 11b.
When the control unit 12b receives the radio wave from the wireless ID tag 70, the control unit 12b acquires the reception time 101b, which is the reception time, from the clock 14b.
Further, when receiving the radio wave from the wireless ID tag 70, the control unit 12b acquires the reader device ID number 102b from the memory 13b.

The control unit 12b transmits the vehicle ID number 100b, the reception time 101b, and the reader device ID number 102b as entry / exit vehicle information 110b to the processing unit 51 of the entrance / exit management device 50 by wire or wirelessly.

  The processing unit 51 of the entrance / exit management device 50 receives the entry / exit vehicle information 110b from the exit reader device 20 (S101).

Next, the process proceeds to S130 via S102 to S111. In S110, the entry / exit vehicle information 110b is registered in the passing history database 52 (FIG. 7C).

Next, the processing unit 51 targets the vehicle ID number of the received entry / exit vehicle information 110b for data in which the reception time recorded in the traffic history database 52 is between the current time and Y (seconds) before. Search is performed (S130). However, the entry / exit vehicle information 110b registered immediately before in S102 is excluded from the search target.

  In S130, when the vehicle ID number of the received entry / exit vehicle information 110b is searched, that is, until Y seconds ago, the vehicle of the received entry / exit vehicle information 110b passes through the entrance reader communication area 30. If it is determined that there is, the process proceeds to S135.

In S135, the processing unit 51 determines that the received entry / exit vehicle information 110b is incorrect information.

  Then, the processing unit 51 deletes the entry / exit vehicle information 110b once registered in S110 from the passing history database 52 (S136, see FIG. 7D).

And if entrance / exit management is continuing, it will return to S101 via S140.

  Next, a case where the vehicle 1b equipped with the wireless ID tag 70 leaves the factory will be described.

When the vehicle 1b equipped with the wireless ID tag 70 enters the area of the leaving reader communication area 40, the leaving reader device 20 moves from the wireless ID tag 70 mounted on the vehicle 1 to the vehicle via the leaving reader antenna 11b. The ID number 71 is read (see FIG. 10A).

Similarly, the control unit 12b transmits the vehicle ID number 100b, the reception time 101b, and the reader device ID number 102b as entry / exit vehicle information 110b to the processing unit 51 of the entrance / exit management device 50 by wire or wirelessly. .

  The processing unit 51 of the entrance / exit management device 50 receives the entry / exit vehicle information 110b from the exit reader device 20 (S101).

After entering / leaving vehicle information 110b is registered in the passage history database 52 (S110, see FIG. 8A), the process proceeds to S130 according to the determination of S111.

The control unit 51 searches for the vehicle ID number of the received entry / exit vehicle information 110b for data in which the reception time recorded in the traffic history database 52 is between the current time and Y (seconds) before ( S130). However, the entry / exit vehicle information 110b registered immediately before in S102 is excluded from the search target.

In S130, if the vehicle ID number of the received entry / exit vehicle information 110b is not searched, that is, the vehicle of the received entry / exit vehicle information 110b from the present to Y seconds ago, the entrance leader communication area 30 If it is determined that it has not passed, the process proceeds to S131.
Since the leaving vehicle leaving the factory has not passed the entrance reader communication area 30 immediately before, the process proceeds to S131.

  When the vehicle ID number of the entry / exit vehicle information 110b received in S130 is not searched, the processing unit 51 authenticates that the entry / exit information 110b received by the exit reader antenna 11 is correct exit information (S131). .

Then, the processing unit 51 sets a flag indicating that the exit has been authenticated in the exit authenticated column of the travel history database 52 at the location corresponding to the entrance / exit vehicle information 110b registered in the travel history database 52 in S110. (Refer to FIG. 8B. In the example of FIG. 8B, “1” is recorded in the exit authenticated column . S132).

  Next, after the third avoidance time (Z (seconds)) has elapsed from the time after the authentication of the exit, the processing unit 51 corresponds to the entrance / exit information 110a registered at the entrance and the entrance / exit information 110b registered at the exit. In the entry / exit completion column of the traffic history database 52, a flag indicating that the entrance / exit is normally completed is set (in the example of FIG. 8, the entrance / exit information 110a registered at the entrance and the entrance / exit information 110b registered at the exit). “1” is recorded in the entry / exit completion fields of the two places (see FIG. 8C) (S133).

Here, the third avoidance time (Z (seconds)) is set to be longer than the first avoidance time (X (seconds)). The meaning of the third avoidance time (Z (seconds)) will be described later.

And while entrance / exit management is continuing, it returns to S101 via S140.

  The exiting vehicle that has passed through the exit leader communication area 40 then enters the entrance leader communication area 30 (FIG. 10B).

The entrance reader device 10 reads the vehicle ID number 71 from the wireless ID tag 70 mounted on the vehicle 1b via the entrance reader antenna 11a.
When the control unit 12b receives the radio wave from the wireless ID tag 70, the control unit 12b acquires the reception time 101b, which is the reception time, from the clock 14b.
Further, when receiving the radio wave from the wireless ID tag 70, the control unit 12b acquires the reader device ID number 102b from the memory 13b.
Similarly, the control unit 12b transmits the vehicle ID number 100a, the reception time 101a, and the reader device ID number 102a as entry / exit vehicle information 110a to the processing unit 51 of the entrance / exit management device 50 by wire or wirelessly. To do.

  The processing unit 51 of the entrance / exit management device 50 receives the entrance / exit vehicle information 110a from the entrance reader device 10 (S101).

After entering / leaving vehicle information 110a is registered in the travel history database 52 (S110, see FIG. 8C), the process proceeds to S120 according to the determination in S111.

In S120, the control unit 51 sets the vehicle ID number of the received entry / exit vehicle information 110a for data in which the reception time recorded in the traffic history database 52 is between the current time and X (seconds) before. Search for. However, the entry / exit vehicle information 110b registered immediately before in S102 is excluded from the search target.

In S120, when the vehicle ID number of the received entry / exit vehicle information 110a is searched, that is, the vehicle of the received entry / exit vehicle information 110a passes through the exit leader communication area 40 for X seconds before the present. If it is determined that it is, the process proceeds to S121.
Since the leaving vehicle leaving the factory has passed the leaving leader communication area 40 immediately before, the process proceeds to S121.

  Next, the processing unit 51 determines whether or not the vehicle of the received entry / exit vehicle information 110a has not been entered (S121).

Here, the non-entry determination method in S121 will be described with reference to FIG. Non-entry means that the vehicle has not entered the factory.
The processing unit 51 extracts a vehicle ID number from the received entry / exit vehicle information 110a (S201).

  The processing unit 51 searches whether or not the extracted vehicle ID number is recorded in the traffic history database 52. The search range can be set according to the management status, for example, searching from those recorded in the traffic history database 52 within two days (S202).

  If no search is made in S202, the vehicle is determined not to enter (S203).

  On the other hand, when the extracted vehicle ID number is searched, the processing unit 51 determines whether or not a flag is set in the entry / exit completion column corresponding to the most recently searched vehicle ID number in the traffic history database 52. (S204).

  If the flag is set, that is, if there is a record that has been entered last time but the exit has been completed, the process proceeds to S203, and it is determined that the entry has not been made (S203).

On the other hand, if the flag is not set in the determination of S204, that is, if there is a record that has been entered and the exit has not been completed, the process proceeds to S205, and it is determined that the entry has not been made (S205).

As described above, in S121 of FIG. 4, it is determined whether or not the vehicle that has received the entry / exit vehicle information 110a is not yet entered. If not, the process proceeds to S122.
In S122, the processing unit 51 determines that the received entry / exit vehicle information 110a is incorrect information (S122).

Then, the processing unit 51 deletes the entry / exit vehicle information 110a once registered in S110 from the passing history database 52 (see FIG. 8E) (S123).

If it is determined in S121 of FIG. 4 that the vehicle that has received the entry / exit vehicle information 110a is not yet entered, the process proceeds to S125.

If entrance / exit management is being continued, the process returns to S101 via S140.

In the previous S132, the processing unit 51 corresponds to the entrance / exit information 110a registered at the entrance and the entrance / exit information 110b registered at the exit after the third avoidance time (Z (seconds)) from the time after the authentication of the exit. At a location, a flag indicating that entry / exit is properly completed is set in the entry / exit completion column of the traffic history database 52.
Here, if the processing unit 51 sets a flag in the entry / exit completion field immediately after leaving authentication, the processing unit 51 makes a non-entry determination in the determination of S121 and proceeds to S125, and erroneously detects the leaving vehicle. Will be processed for admission authentication.
For this reason, in S132, the processing unit 51 does not set the entry / exit completion flag for the first avoidance time (X (seconds)) after the exit, and is longer than the first avoidance time (X (seconds)). After the passage of the third avoidance time (Z (seconds)), a flag indicating that entry / exit has been normally completed is set in the entry / exit completion column of the passage history database 52.

  As described above, in the first embodiment, the entrance / exit management device 50 includes the processing unit 51, the traffic history database 52, the registered vehicle database 53, the reader device database 54, and the clock 55. The entry / exit vehicle information 110 is input from the device 10 and the exit reader device 20, and the entrance / exit vehicles are managed according to the flowchart of FIG.

  As a result, in the entrance / exit management system that manages the entrance / exit vehicles using the wireless ID tag, the communication area of the entrance ID reader and the exit ID reader is the vehicle for reasons such as narrow road width. Even if the vehicle overlaps the direction of travel and the vehicle passes both the entrance leader communication area 30 and the exit leader communication area 40 at the time of entry and exit, it is inexpensive and reliable without erroneous entry and exit of the vehicle. A highly enterable entrance control system can be obtained.

Embodiment 2. FIG.
In the first embodiment, the case has been described in which the exit leader communication area 40 is formed on the side of the building that performs entrance / exit management rather than the entrance leader communication area 30, but in the second embodiment, the entrance leader communication area 40 The case where 30 is formed in the factory side which performs entrance / exit management rather than the leader communication area 40 for exit is demonstrated.

FIG. 11 is a diagram for explaining the configuration of an entrance / exit management system according to Embodiment 2 of the present invention. As described above, in the second embodiment, the entrance leader communication area 30 is formed on the factory side that performs entrance / exit management more than the exit leader communication area 40.

In the second embodiment, the same or corresponding components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

In the second embodiment, the processing unit 51 performs entrance / exit management according to the flowchart of FIG. 4 described in the first embodiment. The processing contents of each step (S101 to S140) are the same as those in the first embodiment.

  In Embodiment 2, description of each step of the flowchart of FIG. 4 is omitted, and only the steps of the flowchart of FIG.

  First, a case where the vehicle 1a enters the factory will be described.

The vehicle 1 a first enters the exit leader communication area 40. Then, the process proceeds to S130 through S101, S102, S110, and S111 in FIG.
In S <b> 130, the processing unit 51 determines that Y seconds or more have elapsed after entering, and proceeds to S <b> 135. In S130, when it is not yet entered, it is determined that X seconds or more have elapsed since entering. The non-entry determination process is determined by the same process as S121 described in the first embodiment.
In S135, the processing unit 51 determines that the reading reader device is misread, and deletes the entry / exit information 110b registered in S110 from the passing history database 52 (S136).

If entrance / exit management is being continued, the process returns to S101 via S140.

Next, the vehicle 1 a enters the entrance reader communication area 30. Then, the process proceeds to S120 through S101, S102, S110, and S111 in FIG.

In S120, the processing unit 51 determines that X seconds or more have not elapsed after leaving, and proceeds to S121.
In S121, the processing unit 51 determines that no entry has been made, and the process proceeds to S125. Then, the entrance / exit information 110 received by the entrance reader antenna 11 is authenticated as normal entrance information (S125), and an entrance authenticated flag is set (S126).

If entrance / exit management is being continued, the process returns to S101 via S140.

  Next, the case where the entered vehicle 1a leaves the premises will be described. The vehicle at this time is indicated by a broken line in FIG.

The vehicle 1 b first enters the entrance reader communication area 30. Then, the process proceeds to S120 through S101, S102, S110, and S111 in FIG.

In S120, the processing unit 51 determines that X seconds or more have not elapsed after leaving, and proceeds to S121.
In S121, the processing unit 51 determines that it is not yet entered, and proceeds to S122.
In S135, the processing unit 51 determines that the entry reader device is misread, and deletes the entry / exit information 110a registered in S110 from the passing history database 52 (S123).

If entrance / exit management is being continued, the process returns to S101 via S140.

Next, the vehicle 1b enters the exit leader communication area 40. Then, the process proceeds to S130 through S101, S102, S110, and S111 in FIG.

In S <b> 130, the processing unit 51 determines that Y seconds or more have elapsed after entering, and proceeds to S <b> 131.
Then, the entrance / exit information 110 received by the entrance reader antenna 11 is authenticated as normal entrance information (S131), and an exit authentication flag is set (S132).

Then, after the third avoidance time (Z (seconds)) has elapsed since the authentication of the exit, the processing unit 51 corresponds to the entrance / exit information 110a registered at the entrance and the entrance / exit information 110b registered at the exit. In the entry / exit completion column of the traffic history database 52, a flag indicating that entry / exit is normally completed is set.

If entrance / exit management is being continued, the process returns to S101 via S140.

  Thus, in the second embodiment, the entrance / exit management device 50 includes the processing unit 51, the traffic history database 52, the registered vehicle database 53, the reader device database 54, and the clock, and the processing unit 51 includes the entrance reader device. 10 and entry / exit vehicle information 110 are input from the exit reader device 20, and entry / exit vehicles are managed according to the flowchart of FIG.

As a result, in the entrance / exit management system that manages the entrance / exit vehicles using the wireless ID tag, the communication area of the entrance ID reader and the exit ID reader is the vehicle for reasons such as narrow road width. Even if the vehicle overlaps the direction of travel and the vehicle passes both the entrance leader communication area 30 and the exit leader communication area 40 at the time of entry and exit, it is inexpensive and reliable without erroneous entry and exit of the vehicle. A highly enterable entrance control system can be obtained.

Embodiment 3 FIG.
In the first and second embodiments, the entrance reader device 10 and the exit reader device 20 are provided with the clock 14, and the reception time 101 is transmitted as the entrance / exit vehicle information 110 to the entrance / exit management device 50. 3, the entrance reader device 10 and the exit reader device 20 do not include a clock, and the time when the entrance / exit management device 50 receives the entrance / exit vehicle information 110 is treated as a reception time.

FIG. 12 is a block diagram of the entrance / exit management system according to Embodiment 1 of the present invention. Configurations that are the same as or equivalent to those in Embodiments 1 and 2 are given the same reference numerals, and descriptions thereof are omitted.

The control unit 12a of the entrance reader device 10 according to the third embodiment uses the vehicle ID number 100a and the reader device ID number 102a as entry / exit vehicle information 110a, wired or wireless to the processing unit 51 of the entrance / exit management device 50. Send by.
The processing unit 51 uses the time when the entry / exit vehicle information 110a is received (the time output by the clock 55) as the reception time, and adds the reception time to the entry / exit vehicle information 110a as new entry / exit vehicle information 110a. To do.

In addition, the control unit 12b of the exit reader device 20 according to the third embodiment is wired to the processing unit 51 of the entrance / exit management device 50 using the vehicle ID number 100b and the reader device ID number 102b as entrance / exit vehicle information 110b. Or transmit by radio.
The processing unit 51 uses the time when the entry / exit vehicle information 110b is received as the reception time (the time output by the clock 55), and adds the reception time to the entry / exit vehicle information 110b as new entry / exit vehicle information 110b. To do.

The subsequent operation of the processing unit 51 is the same as in the first or second embodiment.

In Embodiment 3, since the clocks are common, the comparison accuracy when comparing the reception times is improved.

In the first to third embodiments, the wireless ID tag may be a passive tag that does not incorporate a battery, or may be an active tag that incorporates a battery.
The transmission medium through which information is transmitted and received between the wireless ID tag 70 and the reader device may be an electromagnetic wave in the MHz band, a microwave in the GHz band, and further light in the THz band.

In the first to third embodiments, the entrance / exit of the vehicle is managed. However, as described above, the present invention may be applied to, for example, management of entrance / exit of people other than the vehicle.

It is a figure explaining the structure of the entrance / exit management system which concerns on Embodiment 1 of this invention. 1 is a block diagram of an entrance / exit management system according to Embodiment 1 of the present invention. FIG. It is a block diagram of the radio | wireless ID tag which concerns on Embodiment 1 of this invention. It is a flowchart figure which shows operation | movement of the process part 51 of the entrance / exit management system which concerns on Embodiment 1 of this invention. It is a flowchart figure which determines whether it is the non-entrance performed by the process part 51 which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the entrance information 110 which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the traffic history database which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the traffic history database which concerns on Embodiment 1 of this invention. It is a figure explaining the reading condition of the wireless ID tag at the time of vehicle entrance which concerns on Embodiment 1 of this invention. It is a figure explaining the reading condition of the radio | wireless ID tag at the time of vehicle leaving which concerns on Embodiment 1 of this invention. It is a flowchart figure which shows operation | movement of the process part 51 of the entrance / exit management system which concerns on Embodiment 2 of this invention. It is a block diagram of the entrance / exit management system which concerns on Embodiment 3 of this invention.

DESCRIPTION OF SYMBOLS 1 Vehicle, 1 'Vehicle 1 to exit, 10 Reader device for entrance, 11 Reader antenna, 12 Control part, 13 Memory, 14 Clock, 20 Reader device for exit, 30 Reader communication area for entrance, 40 Reader communication area for exit, 50 entry / exit management device, 51 processing unit, 52 traffic history database, 53 registered vehicle database, 54 reader device database, 55 clock, 70 wireless ID tag, 71 vehicle ID number, 72 wireless ID tag antenna, 80 road, 100 vehicle ID Number, 101 reception time, 102 reader device ID number, 110 entry / exit car information.

Claims (2)

An entrance / exit management system for managing entrance / exit of a vehicle or a person who is a management target equipped with a wireless ID tag and enters / exits the facility,
Forming a communication area for admission management to enter the facility, receiving radio waves from the wireless ID tag mounted on the management object in the communication area for admission management, reading identification data, and reading the identification data And an entry reader device for outputting the readout time when the identification data is read out as entrance identification data,
The communication area for the entrance management object overlaps with the front and rear of the direction of travel of the management object, and the communication area for the exit management object that leaves the facility is formed closer to the facility than the communication area for the entrance management object And receiving the radio wave from the wireless ID tag mounted on the management target in the communication area for the exit management target, reading the identification data, and identifying the identification data and the read time when the identification data is read out. An exit reader device that outputs as
The management object is identified based on the input identification data and the exit identification data that have been input, and when the same management object is used, the time of reading the entrance identification data and the time of reading the exit identification data Take the difference
Comparing the difference with a preset threshold time, and when the difference is smaller than the threshold time, the later of the entry identification data read time and the exit identification data read time An entrance / exit management device that determines that the entrance identification data or the exit identification data is erroneous identification data,
The entrance / exit management device inputs the entrance identification data read by the entrance reader device from the wireless ID tag mounted on the same management target when the difference is larger than the threshold time. Then, after the exit identification data read by the exit reader device is input,
When the identification data of the wireless ID tag mounted on the same management target is read to the exit reader device before the entrance reader device, it is determined to be incorrect identification data. An entrance / exit management system. An entrance / exit management system for managing entrance / exit of a vehicle or a person who is a management target equipped with a wireless ID tag and enters / exits the facility,
Forming a communication area for admission management to enter the facility, receiving radio waves from the wireless ID tag mounted on the management object in the communication area for admission management, reading identification data, and reading the identification data And an entry reader device for outputting the readout time when the identification data is read out as entrance identification data,
It overlaps with the communication area for the entrance management object before and after the direction of travel of the management object, and the communication area for the exit management object leaving the facility is opposite to the facility for the entrance management object communication area. The identification data is read out by receiving radio waves from the wireless ID tag mounted on the management target in the communication area for the exit management target, and the reading time at which the identification data is read out. An exit reader device for outputting as exit identification data;
The management object is identified based on the input identification data and the exit identification data that have been input, and when the same management object is used, the time of reading the entrance identification data and the time of reading the exit identification data Take the difference
The difference is compared with a preset threshold time, and when the difference is smaller than the threshold time, the earlier of the entry identification data read time and the exit identification data read time An entrance / exit management device that determines that the entrance identification data or the exit identification data is erroneous identification data,
The entrance / exit management device inputs the entrance identification data read by the entrance reader device from the wireless ID tag mounted on the same management target when the difference is larger than the threshold time. Then, after the exit identification data read by the exit reader device is input,
When the identification data of the wireless ID tag mounted on the same management target is read to the entrance reader device before the exit reader device, it is determined to be erroneous identification data. An entrance / exit management system.

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