JP4608914B2 - Vehicle entry / exit management system - Google Patents

Description

  The present invention relates to a vehicle entrance / exit management system that performs management when a vehicle such as an automobile, a motorcycle, or a bicycle enters or leaves a parking lot, a bicycle parking lot, a garage, or other places.

  A conventional vehicle entrance / exit management system includes an entrance management device, an exit management device, a parking position management device, a central management device, and an ID chip mounted on each automobile. The entrance management device and the exit management device each control the entrance and exit of the car with a breaker, communicate with the ID chip of each car and display the entry time, parking position, exit time, parking fee etc. on the display, Entry / exit management by exchanging data with the management device. The parking position management device communicates with the ID chip of the automobile parked in each section of the parking lot, and performs the parking position management by exchanging data with the central management device. The central management device has a parking information database consisting of a customer information database and a parking position database, sends and receives data to and from each device, registers necessary data in the parking information database, and stores the parking information database. The database management is performed to determine the vacant area of the parking lot and transmit it to the entrance management device, and to determine the parking time information of the leaving car and transmit it to the exit management device. In the customer information database, a vehicle number, an owner's address, a name, a telephone number, an entry time, an exit time, a parking fee, a cumulative parking fee, and the like registered in the ID chip are registered. In the parking position database, the parking position of the parking lot, the vehicle number of the parked automobile, and the like are registered. In the ID chip, the vehicle number of the automobile, the address of the owner, the telephone number, the name, and the like are written (for example, see Patent Document 1).

  In addition, the conventional wireless tag is detachably fixed to the back surface, inside of the license plate fixed to the front bumper or rear bumper of the automobile, or to the body of the automobile itself. The wireless tag includes, for example, a nonvolatile memory chip such as an EEPROM and an antenna coil that resonates with a radio wave signal having a predetermined frequency and transmits data of the memory chip as a response. In the memory chip, the vehicle number, outer dimensions, weight, type, and the like are stored in a non-rewritable manner (see, for example, Patent Document 2).

JP 2000-149194 A ([0012] to [0018], FIGS. 1 and 2) JP 2002-230596 A ([0012] to [0013], FIG. 1)

  Vehicle entry / exit management systems used in relatively small parking lots that are attached to apartment buildings and used only by their residents or only by monthly contractors are mainly used by non-residents and contractors. It is intended to prevent unauthorized parking of vehicles (unregistered vehicles) that have not been registered in advance, such as vehicles driven by a person. Therefore, this type of vehicle entrance / exit management system recognizes a vehicle (registered vehicle) registered in advance, rather than a number of functions such as the entrance management function, exit management function, and parking position management function described above, It only needs to have the function to control the opening and closing of the circuit breaker, shutter, gate, movable fence, movable chain, etc. Rather, to secure a lot of parking space even in a narrow area (space saving) is important.

  However, the conventional vehicle entrance / exit management system described above has a relatively large parking area, as can be seen from the fact that a breaker that controls entry and a breaker that controls exit are provided separately. It is assumed to be used in a parking lot. For this reason, in the conventional vehicle entrance / exit management system described above, no consideration is given to space saving, and it is difficult to realize space saving when used in the above-described relatively small parking lots. There was a problem.

The vehicle entrance / exit management system according to the present invention is provided at an entrance / exit where the entrance and exit to the temporary vehicle existence area are shared, and an entrance / exit restriction member for restricting entrance / exit of the vehicle, and identification for identifying the vehicle For each code, the entry / exit history management table storing the entry / exit history of the corresponding vehicle into the vehicle temporary existence area, and the part of the entry / exit restriction member facing the outside of the vehicle temporary existence area are provided. A first antenna, a second antenna provided at a portion of the entrance / exit restriction member facing the inside of the temporary vehicle presence area, and a first inquiry signal to the vehicle approaching the entrance from the outside. transmits through the first antenna, a second interrogation signal transmitted via the second antenna to the vehicle approaching the entrance from the inside, is provided at the distal end portion of the vehicle identification From over de feeder, said identification code supplied in response to the first interrogation signal as the identification code of the entrance side, received via the first antenna, the identification provided at the tip portion of the vehicle An interrogator that receives an identification code supplied from the code supplier in response to the second interrogation signal as an exit side identification code via the second antenna, the entrance side or the exit side And a control device that drives the entry / exit restriction member based on the identification code and updates the contents of the entry / exit history management table , wherein the first antenna is the vehicle temporary existence area. The second antenna has better directivity on the inner side of the temporary vehicle presence area than on the outer side .

As described above, the present invention provides an entrance / exit restriction member for restricting entrance / exit of a vehicle, and an identification code for identifying the vehicle, which are provided at an entrance / exit where the entrance and exit to the temporary vehicle existence area are shared. And an entry / exit history management table for storing the entry / exit history of the corresponding vehicle to the temporary vehicle existence area, and a first part of the entry / exit restriction member provided on the outside of the temporary vehicle existence area. A second antenna provided at a portion of the entrance / exit restriction member facing the inside of the temporary vehicle presence area, and a first inquiry signal to the vehicle approaching the doorway from the outside. transmits through the first antenna, a second interrogation signal transmitted via the second antenna to the vehicle approaching the entrance from the inside, the identification code supplied provided at the tip of the vehicle From the identification code supplied in response to the first interrogation signal as the identification code of the entrance side, it received via the first antenna, from the identification code feeder provided at an end portion of the vehicle The identification code supplied in response to the second interrogation signal is used as an identification code on the exit side, the interrogator receiving via the second antenna, and the identification code on the entrance side or the exit side. And a control device that drives the entrance / exit restriction member and updates the contents of the entrance / exit history management table , wherein the first antenna is oriented outside the temporary vehicle presence area. The second antenna has better directivity inside the temporary vehicle presence area than outside . Therefore, it is possible to permit entry / exit of only the registered vehicle in a relatively small parking lot and to save space.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration of a vehicle entrance / exit management system according to Embodiment 1 of the present invention.
The vehicle entrance / exit management system of this example includes a parking lot management device 1 and a wireless tag 2. The parking lot management device 1 includes a device main body 11, an antenna 12, and a blocking bar 13. As shown in FIG. 2, the apparatus main body 11 is housed in a substantially rectangular cylindrical housing 11 a and is installed near the entrance 31 a of the parking lot 31. As shown in FIG. 2, the antenna 12 has a substantially rectangular plate shape, and one or a plurality (three in the example of FIG. 2) are attached to the surface of the blocking bar 13 at a predetermined interval. It has been. The blocking rod 13 has a substantially cylindrical shape or a substantially rectangular tube shape, and one end thereof is rotatably attached to the vicinity of the distal end portion of the housing 11a. The blocking bar 13 is driven by the device main body 11 with the vicinity of the front end of the housing 11a as a fulcrum, in a steady state (closed state of the entrance / exit) (see FIG. 2) that is substantially horizontal to the ground, and an avoidance state that is substantially perpendicular to the ground. It is driven to rotate in two states (open / closed state).

  The apparatus main body 11 includes an interrogator 14, a control unit 15, a memory 16, and a blocking rod driving unit 17. The interrogator 14 transmits an interrogation signal having a predetermined frequency via the antenna 12 under the control of the control unit 15 at all times, regularly or irregularly, and an identification code (ID code) transmitted from the wireless tag 2 Is supplied to the control unit 15. Here, the identification code is a code assigned to each customer in order to identify a registered customer by signing a use contract for the parking lot 31 with an operating organization that operates the vehicle entrance / exit management system of this example. is there. The question signal is a signal for requesting transmission of this identification code.

The control unit 15 includes a central processing unit (CPU), a digital signal processor (DSP), a sequencer, and the like, and executes vehicle entry / exit management processing and the like based on a vehicle entry / exit management program stored in the memory 16. Thus, the entire parking lot management device 1 is controlled. That is, for example, when the vehicle entrance / exit management program is read, the vehicle entrance / exit management program is read by the control unit 15 to control the operation of the control unit 15. When the vehicle entrance / exit management program is activated, the control unit 15 executes a vehicle entrance / exit management process described later under the control of the vehicle entrance / exit management program. The vehicle entrance / exit management process causes the interrogator 14 to transmit the above-described interrogation signal, and based on the identification code supplied from the interrogator 14, requests to open / close the barrier rod 13 to the barrier rod drive unit 17. It is a process to perform.

  The memory 16 includes a RAM, a ROM, or a semiconductor memory such as a flash memory. The memory 16 stores the vehicle entry / exit management program and other various programs to be executed by the control unit 15 as well as a user information table and other various data. It is used for work when executing management programs and other various programs. In the user information table, a vehicle number, an owner's address, a name, a telephone number, and the like stored in advance in the wireless tag 2 are stored in advance for each identification code described above. Under the control of the control unit 15, the breaking bar drive unit 17 opens and closes the blocking bar 13 with an electric motor via a speed reducer (not shown). For details of the circuit breaker including the blocking bar 13 and the blocking bar driving unit 17, refer to, for example, Japanese Patent Application Laid-Open No. 2001-107327.

  The wireless tag 2 includes a non-volatile memory chip 21 such as an EEPROM and an antenna coil 22 that resonates with the above-described interrogation signal and transmits an identification code stored in advance in the memory chip 21 as a response. In the memory chip 21, in addition to the above identification code, the vehicle number of the vehicle (registered vehicle) 33, the owner's address, the telephone number, the name, and the like are stored in advance so as not to be rewritten. As shown in FIG. 3, the wireless tag 2 is detachably fixed in the vicinity of the upper part of the number plate 34 fixed to the front bumper 33 a of the vehicle 33.

  Next, the operation of the vehicle entrance / exit management system configured as described above will be described with reference to a flowchart showing processing of the control unit 15 shown in FIG. When the power is turned on, the control unit 15 first proceeds to the process of step SP1 shown in FIG. 4, requests the interrogator 14 to transmit the above-described interrogation signal, and then proceeds to step SP2. The interrogator 14 that has received the transmission request for the interrogation signal transmits an interrogation signal having a predetermined frequency via the antenna 12 at regular, regular, or irregular intervals.

  In step SP2, the control unit 15 determines whether or not an identification code is supplied from the interrogator 14. When the determination result is “NO”, the control unit 15 repeats the determination. In this state, as shown in FIG. 2, the vehicle 33 on which the customer boarded travels on the general road 32 and arrives at the entrance 31 a of the parking lot 31, and the leading end of the vehicle 33 faces the barrier 13. Then, the antenna 12 and the wireless tag 2 (not shown) are sufficiently close to each other. As a result, the antenna coil 22 of the wireless tag 2 resonates with the above-described interrogation signal and transmits an identification code stored in advance in the memory chip 21 as a response, so that the interrogator 14 recognizes the identification signal transmitted from the wireless tag 2. The code is received and supplied to the control unit 15. Therefore, the determination result in step SP2 is “YES”, and the control unit 15 proceeds to step SP3. On the other hand, even if the front end of the vehicle to which the wireless tag 2 is not attached is directed to the blocking bar 13, the interrogator 14 cannot receive the identification code. Therefore, in this case, the determination result in step SP2 remains “NO”.

  In step SP3, the control unit 15 refers to the user information table stored in advance in the memory 16, and determines whether or not the identification code supplied from the interrogator 14 is that of the registered vehicle. . If this determination is “YES”, the control unit 15 proceeds to step SP4. On the other hand, if the determination result in step SP3 is “NO”, that is, the wireless tag 2 is attached to the front end portion of the vehicle directed to the shutting bar 13, but is stored in advance in the memory chip 21 constituting the wireless tag 2. If the identified identification code is not for the vehicle registered in the user information table, the control unit 15 returns to step SP2.

  In step SP4, the control unit 15 requests the blocking rod drive unit 17 to open the blocking rod 13, and then proceeds to step SP5. In response to a request for opening the blocking rod 13, the blocking rod drive unit 17 rotates the blocking rod 13 in the inlet / outlet closed state by an electric motor via a reduction gear (not shown). Thereby, the vehicle 33 can enter the inside of the parking lot 31.

  In step SP5, the control unit 15 determines whether or not the rear end portion of the vehicle 33 has passed directly below the blocking bar 13. This determination can be made, for example, by detecting that light emitted from a light sensor attached to the housing 11a of the apparatus main body 11 in a direction parallel to the blocking bar 13 is not blocked by the vehicle 33, or for entering and exiting the parking lot 31. A time lapse signal is supplied from the timer when a predetermined time has passed after the pressure sensor embedded in the ground 31a is detected to stop being applied with a pressure higher than a predetermined value or when the interrogator 14 receives the identification code. It is performed by detecting that it has been done. If the determination result in step SP5 is “NO”, the control unit 15 repeats the determination. Then, when the rear end portion of the vehicle 33 passes directly below the blocking bar 13, the determination result in step SP5 is “YES”, and the control unit 15 proceeds to step SP6.

  In step SP6, the control unit 15 requests the blocking rod driving unit 17 to close the blocking rod 13, and then returns to step SP2 to repeat the processing of steps SP2 to SP6. In response to a request for closing the blocking rod 13, the blocking rod drive unit 17 rotates the blocking rod 13 in the open / closed state by an electric motor via a reduction gear, not shown. Thereby, the entrance 31a of the parking lot 31 is closed. In addition, about the process when the vehicle parked in the parking space of the parking lot 31 leaves, it is substantially the same as the process when the above-mentioned vehicle 33 enters the parking lot 31, Therefore The description is abbreviate | omitted.

  As described above, according to the configuration of this example, one or a plurality of antennas 12 connected to the interrogator 14 are attached to the surface of the blocking bar 13 and the wireless chip having the memory chip 21 in which the identification code is stored in advance. Only when the tag 2 is fixed to the tip of the vehicle 33 that is a registered vehicle so as not to be detachable and the identification code received by the interrogator 14 is stored in advance in the user information table of the memory 16. Admission to the parking lot 31 is permitted. Therefore, a vehicle to which the wireless tag 2 is not attached and a vehicle to which the wireless tag 2 is attached but whose identification code is not registered in advance in the user information table, that is, an unregistered vehicle, enter the parking lot 31. I can't do it.

In addition, according to the configuration of this example, as can be seen from FIG. 2, the parking lot 31 has a housing 11 a in which the apparatus main body 11 including the interrogator 14 and the like is stored in the vicinity of the entrance 31 a and the surface thereof. One or a plurality of antennas 12 may be attached, and one end of the antenna 12 may be installed in the vicinity of the distal end of the housing 11a. Therefore, as shown in FIG. 5, it is necessary to secure a large amount of space only for managing the entrance of the vehicle 33 ₁ to which the wireless tag 2 ₁ is attached and the exit of the vehicle 33 ₂ to which the wireless tag 2 ₂ is attached. Not much parking space can be secured.
That is, according to the configuration of this example, it is possible to permit entry / exit of only registered vehicles in a relatively small parking lot used by a resident of an apartment house or a monthly contractor, and also saves space. Can be achieved.

Embodiment 2. FIG.
FIG. 6 is a block diagram showing a configuration of a vehicle entrance / exit management system according to the second embodiment of the present invention. In FIG. 6, parts corresponding to those in FIG. In the vehicle entrance / exit management system shown in FIG. 6, a parking lot management device 41 is newly provided in place of the parking lot management device 1 shown in FIG. 1.

The parking lot management device 41 includes a device main body 11, an antenna 12, a blocking bar 13, and vehicle detection sensors 42 ₁ and 42 ₂ . As shown in FIG. 7, the apparatus main body 11 is housed in a substantially rectangular cylindrical housing 11 a and is installed near the entrance 31 a of the parking lot 31. The configuration of the apparatus main body 11 is the same as that of the apparatus main body 11 in the first embodiment described above, but the processing executed by the control unit 15 and the programs and data stored in the memory 16 are different. That is, the control unit 15 executes a vehicle entry / exit management process and other processes based on various programs such as a vehicle entry / exit management program stored in the memory 16 and controls the entire parking lot management apparatus 41. The vehicle entrance / exit management program updates the contents of an entrance / exit history management table (described later) stored in the memory 16 based on the entrance detection signal or exit detection signal supplied from the vehicle detection sensor 42 ₁ or 42 _2. At the same time, the interrogator 14 is made to transmit the above-described interrogation signal, and based on the identification code supplied from the interrogator 14, a request for opening / closing the barrier rod 13 is made to the barrier rod drive unit 17. .

  In addition to the new vehicle entrance / exit management program and other various programs to be executed by the control unit 15, the memory 16 stores a user information table, the above entrance / exit history management table and other various data, The control unit 15 is used for work when the vehicle entrance / exit management program and other various programs are executed. The configuration and stored contents of the user information table are the same as those in the first embodiment. The entry / exit history management table stores, for each identification code described above, a history of the date and time when the vehicle entered the parking lot 31 and a history of the date and time when the vehicle left the parking lot 31.

As shown in FIG. 7, a vehicle detection sensor 42 ₁ is attached to a predetermined position on the side facing the open road 32 of the housing 11a, a vehicle detection sensor 42 ₂ is the side facing the inside of the parking lot 31 of the housing 11a It is attached in place. The vehicle detection sensors 42 ₁ and 42 ₂ are optical, electromagnetic, acoustic or ultrasonic, or mechanical, and physically detect a vehicle approaching the entrance / exit 31a of the parking lot 31 and enter the vehicle. The detection signal and the exit detection signal are supplied to the control unit 15.

Next, the operation of the vehicle entrance / exit management system configured as described above will be described with reference to a flowchart showing processing of the control unit 15 shown in FIG. In FIG. 8, the steps corresponding to the steps in FIG. When the power is turned on, the control unit 15 first proceeds to the processing of step SP11 shown in FIG. 8, and requests the interrogator 14 to transmit the above-described interrogation signal. Moreover, the control part 15 transmits the signal (vehicle detection signal) for detecting the vehicle to the general road 32 side with respect to the vehicle detection sensor 42 ₁ depending on the detection method of the vehicle detection sensors 42 ₁ and 42 _2. with requests, requests transmission of a vehicle detection signal to the interior side of the parking lot 31 to the vehicle detection sensor 42 _2. Then, the control unit 15 proceeds to step SP2. The interrogator 14 that has received the transmission request for the interrogation signal transmits an interrogation signal having a predetermined frequency via the antenna 12 at regular, regular, or irregular intervals. The vehicle detection sensor 42 _{1 that} has received the transmission request for the vehicle detection signal transmits the vehicle detection signal to the general road side, and the vehicle detection sensor 42 _{2 that} has received the transmission request for the vehicle detection signal is directed to the inside of the parking lot. A vehicle detection signal is transmitted.

  In step SP2, the control unit 15 determines whether or not an identification code is supplied from the interrogator 14. When the determination result is “NO”, the control unit 15 repeats the determination. In this state, as shown in FIG. 7, the vehicle 33 on which the customer boarded travels on the general road 32 and arrives at the entrance 31 a of the parking lot 31, and the leading end of the vehicle 33 faces the barrier 13. Then, the antenna 12 and the wireless tag 2 (not shown) are sufficiently close to each other. As a result, the antenna coil 22 of the wireless tag 2 resonates with the above-described interrogation signal and transmits an identification code stored in advance in the memory chip 21 as a response, so that the interrogator 14 recognizes the identification signal transmitted from the wireless tag 2. The code is received and supplied to the control unit 15. Therefore, the determination result in step SP2 is “YES”, and the control unit 15 proceeds to step SP3. On the other hand, even if the front end of the vehicle to which the wireless tag 2 is not attached is directed to the blocking bar 13, the interrogator 14 cannot receive the identification code. Therefore, in this case, the determination result in step SP2 remains “NO”.

  In step SP3, the control unit 15 refers to the user information table stored in advance in the memory 16, and determines whether or not the identification code supplied from the interrogator 14 is that of the registered vehicle. . If this determination is “YES”, the control unit 15 proceeds to step SP12. On the other hand, if the determination result in step SP3 is “NO”, that is, the wireless tag 2 is attached to the front end portion of the vehicle directed to the shutting bar 13, but is stored in advance in the memory chip 21 constituting the wireless tag 2. If the identified identification code is not for the vehicle registered in the user information table, the control unit 15 returns to step SP2.

In step SP12, the control unit 15 determines whether or not an entrance detection signal or an exit detection signal (collectively referred to as an entrance / exit detection signal) is supplied from either of the vehicle detection sensors 42 ₁ or 42 ₂ . to decide. When the determination result is “NO”, the control unit 15 repeats the determination. In this state, for example, as shown in FIG. 7, when the leading end portion of the vehicle 33 is directed to the blocking rod 13, vehicle detection sensor 42 ₁ is physically detecting a vehicle 33, controlling the admission detection signal To the unit 15. Therefore, the determination result in step SP12 is “YES”, and the control unit 15 proceeds to step SP13. In step SP13, the control unit 15 determines whether or not the supplied entrance / exit detection signal is an entrance detection signal. If this determination is “YES”, the control unit 15 proceeds to step SP14.

  In step SP14, the control unit 15 refers to the entrance / exit history management table stored in the memory 16, searches for the identification code supplied from the interrogator 14, and the vehicle 33 to which the identification code is assigned is associated with the parking lot. After updating the history of the date and time of entering the car park 31, the process proceeds to step SP4. On the other hand, if the determination result in step SP13 is “NO”, that is, if the supplied entrance / exit detection signal is not an entrance detection signal but an exit detection signal, the control unit 15 proceeds to step SP15. In step SP15, the control unit 15 refers to the entrance / exit history management table stored in the memory 16 to search for the identification code supplied from the interrogator 14, and the vehicle 33 to which the identification code is assigned is associated with the parking lot. After updating the history of the date and time of leaving the parking lot 31, the process proceeds to step SP4. Note that the processing in steps SP4 to SP6 is the same as that in the first embodiment described above, and a description thereof will be omitted.

Thus, according to the embodiment, in addition to the configuration of the first embodiment described above, it detects the entrance of the vehicle attached to the side facing the vehicle detection sensor 42 ₁ to ordinary road 32, the vehicle detection Attach the sensors 42 ₂ on the side facing the interior of the car park 31 detects the exit of the vehicle. Therefore, according to the configuration of this example, it is possible to obtain the effects obtained in the first embodiment described above, but in addition, different processing is required for the entry vehicle and the exit vehicle, such as the above-described vehicle entry / exit history management. It becomes possible to perform the service.

Embodiment 3 FIG.
FIG. 9 is a block diagram showing a configuration of a vehicle entrance / exit management system according to Embodiment 3 of the present invention. 9, parts corresponding to those in FIG. 1 are given the same reference numerals, and descriptions thereof are omitted. In the vehicle entrance / exit management system shown in FIG. 9, a parking lot management device 51 is newly provided in place of the parking lot management device 1 shown in FIG.

The parking lot management device 51 includes a device main body 52, a blocking bar 13, and antennas 53 ₁ and 53 ₂ . As shown in FIG. 10, the apparatus main body 52 is housed in a substantially square cylindrical housing 52 a and is installed near the entrance 31 a of the parking lot 31. On the other hand, the wireless tag 2 is fixed in a non-removable manner in the vicinity of the upper portion of a license plate fixed to a front bumper of a vehicle (not shown). The apparatus main body 52 includes an interrogator 54, a control unit 15, a memory 16, and a blocking rod driving unit 17. Interrogator 54 under the control of the control unit 15, via the antenna 53 ₁ and 53 ₂ to the general road side and car park inside side constantly or periodically the first and second interrogation signal of a predetermined frequency, or non It transmits periodically, to the control unit 15 receives the identification code of the entry side and the exit side is transmitted from the wireless tag 2 which face the antenna 53 ₁ and 53 _2. Here, the identification code of the entry side refers to the identification code received by the antenna 53 ₁ which will be described later, the identification code of exit side, means the identification code received by the antenna 53 ₂ to be described later.

  The control unit 15 executes a vehicle entry / exit management process and other processes based on various programs such as a vehicle entry / exit management program stored in the memory 16, and controls the entire parking lot management device 51. The vehicle entrance / exit management program causes the interrogator 54 to transmit first and second interrogation signals to the general road side and the inside of the parking lot, and the first and second interrogators supplied from the interrogator 54. Based on the identification codes on the entrance and exit sides corresponding to the signal, the contents of the entrance / exit history management table stored in the memory 16 are updated, and the opening / closing request of the shutting bar 13 to the shutting bar driving unit 17 and the like. It is a process to perform.

  The memory 16 stores a user information table, an entrance / exit history management table, and other various data, as well as a new vehicle entrance / exit management program and other various programs to be executed by the control unit 15. The unit 15 is used for work when the vehicle entrance / exit management program and other various programs are executed. The configuration and stored contents of the user information table are the same as those in the first embodiment, and the configuration and stored contents of the entrance / exit history management table are the same as those in the second embodiment.

Antenna 53 _1, as shown in FIG. 10 has a substantially rectangular plate shape, on the side of the surface facing the open road 32 of the blocking rod 13, a plurality at one or a predetermined distance (FIG. 10 In the example of FIG. 3, three are attached and are connected to the first input terminal of the interrogator 54. On the other hand, the antenna _{53. 2} shows only a portion in FIG. 10 has a substantially rectangular plate shape, on the side of the surface facing the inside of the parking lot 31 of the blocking rod 13, contact one or a predetermined distance A plurality (three in the example of FIG. 10) are attached and connected to the second input terminal of the interrogator 54. As the antennas 53 ₁ and 53 ₂ , antennas having excellent directivity ratio are used so that the antenna 53 ₁ or 53 ₂ on the side facing the vehicle receives the identification code transmitted from the wireless tag of the vehicle first. In addition, although not shown in the drawing, an electromagnetic shielding plate that shields radiation of radio waves to the rear is attached to the rear surfaces of the antennas 53 ₁ and 53 ₂ , that is, to the attachment surface with the blocking bar 13. The wireless tag 2 shown in FIG. 9 is fixed in a non-removable manner near the upper part of the number plate fixed to the front bumper of the vehicle (not shown).

Next, the operation of the vehicle entrance / exit management system configured as described above will be described with reference to a flowchart showing processing of the control unit 15 shown in FIG. In FIG. 11, steps corresponding to the steps in FIG. When the power is turned on, the control unit 15 first proceeds to the process of step SP21 shown in FIG. 11, requests the interrogator 54 to transmit the above-described question signal, and then proceeds to step SP22. The interrogator 54 that has received the transmission request for the interrogation signal transmits the first and second interrogation signals of a predetermined frequency via the antennas 53 ₁ and 53 ₂ simultaneously or alternately. The transmission of the first and second question signals is performed constantly, regularly, or irregularly.

In step SP22, the control unit 15 determines whether either the entrance side identification code or the exit side identification code is supplied from the interrogator 54. When the determination result is “NO”, the control unit 15 repeats the determination. In such a state, when a vehicle (not shown) on which the customer has boarded travels on the general road 32 and arrives at the entrance 31a of the parking lot 31 and the front end of the vehicle is directed to the barrier 13, the antenna 53 _1. And the wireless tag 2 (not shown) are sufficiently close to each other. As a result, the antenna coil 22 of the wireless tag 2 resonates with the first interrogation signal and transmits the identification code stored in advance in the memory chip 21 as a response, so that the interrogator 54 transmits from the wireless tag 2. The received identification code is received and supplied to the control unit 15. Therefore, the determination result in step SP22 is “YES”, and the control unit 15 proceeds to step SP3. On the other hand, even if the front end of the vehicle to which the wireless tag 2 is not attached is directed to the blocking bar 13, the interrogator 54 cannot receive the identification code. Therefore, in this case, the determination result in step SP22 remains “NO”.

  In step SP3, the control unit 15 refers to the user information table stored in advance in the memory 16, and determines whether or not the identification code supplied from the interrogator 54 is that of the registered vehicle. . If this determination is “YES”, the control unit 15 proceeds to step SP23. On the other hand, if the determination result in step SP3 is “NO”, that is, the wireless tag 2 is attached to the front end portion of the vehicle directed to the shutting bar 13, but is stored in advance in the memory chip 21 constituting the wireless tag 2. If the identified identification code is not for the vehicle registered in the user information table, the control unit 15 returns to step SP22.

  In step SP23, the control unit 15 determines whether or not the identification code supplied from the interrogator 54 in the process of step SP22 is an identification code on the entrance side. If this determination is “YES”, the control unit 15 proceeds to step SP14. On the other hand, when the determination result of step SP23 is “NO”, that is, when the identification code supplied from the interrogator 54 in the process of step SP22 is not the identification code on the entrance side but the identification code on the exit side, The control unit 15 proceeds to step SP15. Note that the processing of steps SP14, SP15 and SP4 to SP6 is the same as in the case of the above-described second embodiment, and therefore the description thereof is omitted.

Thus, according to the configuration of this example, instead of the vehicle detection sensors 42 ₁ and 42 ₂ in the configuration of the second embodiment described above, the antennas 53 ₁ and 53 ₂ that are also used for vehicle detection are replaced with the blocking rod 13. Are attached to the side facing the general road 32 and the side facing the inside of the parking lot 31, and the presence / absence of the registered vehicle and the entrance / exit of the vehicle are detected by the received identification code. Therefore, according to the configuration of this example, the effects obtained in the second embodiment can be obtained, but the presence / absence of a registered vehicle and the entry / exit of the vehicle can be detected at the same time. In addition, since it is not necessary to separately provide the vehicle detection sensors 42 ₁ and 42 ₂ , the parking lot management device 51 can be configured to be small and light and inexpensive.

Embodiment 4 FIG.
FIG. 12 is a block diagram showing a configuration of a vehicle entrance / exit management system according to Embodiment 4 of the present invention. In FIG. 12, parts corresponding to those in FIG. 9 are assigned the same reference numerals and explanations thereof are omitted. In the vehicle entrance / exit management system shown in FIG. 12, a parking lot management device 61 is newly provided in place of the parking lot management device 51 shown in FIG.

The parking lot management device 61 includes a device main body 62, a blocking bar 13, and antennas 53 ₁ and 53 ₂ . Similar to the parking lot management device 51 shown in FIG. 10, the device main body 62 is housed in a substantially square cylindrical housing and is installed near the entrance 31 a of the parking lot 31. On the other hand, the wireless tag 2 is fixed in a non-removable manner in the vicinity of the upper portion of a license plate fixed to a front bumper of a vehicle (not shown). The apparatus main body 62 includes a control unit 15, a memory 16, a blocking rod driving unit 17, and vehicle detectors 63 ₁ and 63 ₂ .

The vehicle detectors 63 ₁ and 63 ₂ have the same configuration and the same function except that signals transmitted and received by the corresponding antennas 53 ₁ and 53 ₂ are different. For this reason, in FIG. 12, the same reference numerals are given to signals generated and input / output signals inside the vehicle detectors 63 ₁ and 63 ₂ , and only the subscript at the right end of each symbol is the vehicle detector. It is shown differently corresponding to the subscripts attached to the reference numerals 63 ₁ and 63 ₂ . The following description only the structure and functions of the vehicle detector 63 _1. As shown in FIG. 12, the vehicle detector 63 ₁ includes an interrogator 64, bandpass filters (hereinafter referred to as BPF) 65 ₁ and 65 ₂ , a detection signal oscillator 66, and an impedance fluctuation detector 67. ing.

Interrogator 64, based on the first control signal S _C11 supplied from the control unit 15, at all times or periodically the first interrogation signal S _Q1 having a predetermined frequency, or with oscillating irregularly from BPF 65 ₁ The supplied identification code C _D1 is supplied to the control unit 15. BPF 65 ₁ passes only the first interrogation signal S _Q1 and the identification code C _D1 having a predetermined frequency. Based on the second control signal S _C21 supplied from the control unit 15, the detection signal oscillator 66 generates the first detection signal S _D1 having a predetermined frequency for detecting the vehicle constantly, regularly, or irregularly. Oscillates. Note that the first interrogation signal S _Q1 and the first detection signal S _D1 are different in frequency and modulation method, for example. BPF 65 ₂ passes only the first detection signal S _D1 having a predetermined frequency. Impedance variation detector 67 detects the impedance variation due to the influence of the vehicle close to the antenna 53 ₁ and supplies the impedance variation detection signal S _I1 to the control unit 15. That is, the antenna 53 ₁ transmits the first inquiry signal S _Q1 and the first detection signal S _D1 superimposed on each other, and the identification code C _D1 transmitted from the radio tag 2 of the opposite vehicle is BPF 65 _1. And supplied to the control unit 15 via the interrogator 64.

The control unit 15 executes a vehicle entry / exit management process and other processes based on various programs such as a vehicle entry / exit management program stored in the memory 16, and controls the entire parking lot management device 61. The vehicle entrance / exit management program supplies the first control signals S _C11 and S _C12 to the vehicle detectors 63 ₁ and 63 ₂ , the first question signal S _Q1 to the general road side, and the second inside to the parking lot. the interrogation signal S _Q2 is respectively transmitted together with the opening and closing request or the like of the blocking rod 13 relative to the blocking rod drive unit 17 on the basis of the identification code C _D1 and C _D2 supplied from the vehicle detector 63 ₁ and 63 _2, The second detection signals S _C21 and S _C22 are supplied to the vehicle detectors 63 ₁ and 63 ₂ to transmit the first detection signal S _D1 to the general road side and the second detection signal S _D2 to the inside of the parking lot, respectively. The contents of the entry / exit history management table stored in the memory 16 are updated based on the impedance fluctuation detection signals S _I1 and S _I2 supplied from the vehicle detectors 63 ₁ and 63 ₂ .

  The memory 16 stores a user information table, an entrance / exit history management table, and other various data, as well as a new vehicle entrance / exit management program and other various programs to be executed by the control unit 15. The unit 15 is used for work when the vehicle entrance / exit management program and other various programs are executed. The configuration and stored contents of the user information table are the same as those in the first embodiment, and the configuration and stored contents of the entrance / exit history management table are the same as those in the second embodiment.

Next, the operation of the vehicle entrance / exit management system configured as described above will be described with reference to a flowchart showing processing of the control unit 15 shown in FIG. When the power is turned on, the control unit 15 first proceeds to step SP31 shown in FIG. 13, the first to the general road side by supplying a first control signal S _C11 to vehicle detector 63 ₁ with a request for transmission of the interrogation signal S _Q1, requests transmission of the second interrogation signal S _Q2 to vehicle detector 63 ₂ is supplied to the first control signal S _C12 to parking inner side. Further, the control unit 15 supplies the second detection signal S _C21 to the vehicle detector 63 ₁ to request transmission of the first detection signal S _D1 to the general road side, and also sends the first detection signal S _D1 to the vehicle detector 63 ₁ . the second control signal S _C22 requesting transmission of the second detection signal S _D2 to the parking lot inner side is supplied. Then, the control unit 15 proceeds to step SP32.

In the vehicle detector 63 ₁ supplied with the first control signal S _C11 , the interrogator 64 oscillates the first interrogation signal S _Q1 having a predetermined frequency constantly, regularly, or irregularly. Only the signal S _Q1 passes through the BPF 65 ₁ and is superimposed on the first detection signal S _D1 and then transmitted via the antenna 53 ₁ . On the other hand, in the vehicle detector 63 ₂ supplied with the first control signal S _C12 , the interrogator 64 oscillates the second interrogation signal S _Q2 having a predetermined frequency constantly, regularly, or irregularly. after only interrogation signal S _Q2 is overlapped with the second detection signal S _D2 passes through the BPF 65 _1, sent via the antenna 53 _2.

Further, in the vehicle detector 63 ₁ supplied with the second control signal S _C21 , the detection signal oscillator 66 oscillates the first detection signal S _D1 having a predetermined frequency constantly, regularly, or irregularly. Only one detection signal S _D1 passes through the BPF 65 ₂ and is superimposed on the first interrogation signal S _Q1, and then transmitted via the antenna 53 ₁ . On the other hand, in the vehicle detector 63 ₂ to which the second control signal S _C22 is supplied, the detection signal oscillator 66 constituting the vehicle detector 63 ₂ outputs the second detection signal S _D2 having a predetermined frequency constantly or regularly, or Since it oscillates irregularly, only the second detection signal S _D2 passes through the BPF 65 ₂ and is superimposed on the second interrogation signal S _Q2 and then transmitted via the antenna 53 ₂ .

In step SP32, the control unit 15, either from one of the vehicle detectors 63 ₁ or 63 ₂ of the identification code C _D1 or C _D2 determines whether supplied. When the determination result is “NO”, the control unit 15 repeats the determination. In such a state, when a vehicle (not shown) on which the customer has boarded travels on the general road 32 shown in FIG. 10 and arrives at the entrance 31 a of the parking lot 31, the front end of the vehicle is directed to the barrier 13. , and the wireless tag 2 which is not shown and the antenna 53 ₁ is sufficiently close. Thereby, the antenna coil 22 of the wireless tag 2, and transmits the identification code stored in advance in the memory chip 21 as a resonant response to the first interrogation signal S _Q1 mentioned above, in the vehicle detector 63 _1, antenna only the identification code received via the 53 ₁ passes through the BPF 65 _1, it is supplied to the control unit 15 via the interrogator 64 as an identification code C _D1. Therefore, the determination result in step SP32 is “YES”, and the control unit 15 proceeds to step SP33. On the other hand, even if the tip of a vehicle wireless tag 2 is not attached is directed to the blocking rod 13, a vehicle detector 63 ₁ is unable to receive an identification code. Therefore, in this case, the determination result in step SP32 remains “NO”.

In step SP33, the control unit 15, whether or not by referring to the user information table stored in advance in the memory 16, the vehicle detector 63 _first identification code C _D1 supplied from is of the vehicle which is registered Determine whether. If this determination is “YES”, the control unit 15 proceeds to step SP34. On the other hand, if the determination result in step SP33 is “NO”, that is, the wireless tag 2 is attached to the front end portion of the vehicle directed to the shutting bar 13, but is stored in advance in the memory chip 21 constituting the wireless tag 2. If the identification code _CD1 is not that of the vehicle registered in the user information table, the control unit 15 returns to step SP32.

In step SP34, the control unit 15 supplies either the impedance fluctuation detection signal S _I1 or S _I2 (collectively referred to as an entrance / exit detection signal) from either the vehicle detector 63 ₁ or 63 ₂ . It is judged whether it was done. When the determination result is “NO”, the control unit 15 repeats the determination. In this state, for example, when the front end portion of a vehicle (not shown) is directed to the blocking rod 13, by detecting the impedance variation due to the influence of the vehicle impedance variation detector 67 approaches the antenna 53 _1, the impedance variation detection The signal S _I1 is supplied to the control unit 15. Therefore, the determination result in step SP34 is “YES”, and the control unit 15 proceeds to step SP35.

In step SP35, the control unit 15 determines whether or not the supplied entrance / exit detection signal is an impedance fluctuation detection signal S _I1 (entrance detection signal). If this determination is “YES”, the control unit 15 proceeds to step SP14. On the other hand, when the determination result in step SP35 is “NO”, that is, when the supplied entrance / exit detection signal is not the entrance detection signal but the impedance fluctuation detection signal S _I2 (exit detection signal), the control unit 15 Advances to step SP15. Note that the processing of steps SP14, SP15 and SP4 to SP6 is the same as in the case of the above-described second embodiment, and therefore the description thereof is omitted.

Thus, according to the embodiment, in place of the interrogator 54 in the configuration of the third embodiment described above, it superimposes the first interrogation signal S _Q1 to antenna 53 ₁ and the first detection signal S _D1 the vehicle detector 63 ₁ and antenna 53 ₂ is provided a vehicle detector 63 ₂ which overlaps the second interrogation signal S _Q2 and the second detection signal S _D2, detects the presence or absence of vehicles registered by the identification code received In addition, the entrance / exit of the vehicle is detected by detecting the impedance fluctuation due to the influence of the approaching vehicle. Therefore, according to the configuration of this example, substantially the same effect as that obtained in the third embodiment can be obtained.

Embodiment 5 FIG.
In each embodiment mentioned above, although the example which applies this invention only when managing the entrance / exit to the parking lot of a vehicle was shown, this invention is not limited to this. The present invention can also be applied to the case where various facilities provided with the parking lot are used as shown below, for example. First, as shown in FIG. 14, a key holder made of a resin or the like on which an identification code stored in advance in the memory chip 21 constituting the wireless tag 2 or a bar code corresponding to data related to the identification code is displayed. 71 is attached to the vehicle key 72 via a ring 73. On the other hand, various parking lot management devices and on-site networks (LAN :) are provided at various facilities provided with the parking lot, such as apartment houses such as apartments and condominiums, entrances and accounting registers of membership restaurants, and the like. A bar code reader connected via a communication line such as a Local Area Network is provided. Then, the customer instructs the bar code displayed on the key holder 71 to open and close the blocking bar 13 by causing the bar code reader to read the bar code. When the facility is a restaurant, the bar code reader provided in the accounting register may read the bar code after eating and drinking, so that the parking fee may be settled together with the food and drink fee.

  In addition, the key holder 71 is composed of another wireless tag having the same configuration as the wireless tag 2, and instead of the bar code reader, the key holder 71 is composed of components other than the blocking bar drive unit 17 in the apparatus main body 11 shown in FIG. A device connected to each parking lot management device described above via a communication line may be provided at the entrance of the facility or the accounting register. Further, instead of the key holder 71, the above-described identification code may be stored together in a transponder constituting the immobilizer. Here, the immobilizer means that if an improperly manufactured key of a vehicle key used for a certain vehicle is used and intruded into the vehicle, the key is verified by collation with an electronic key of a computer. The one that prohibits engine starting using.

The embodiment has been described in detail with reference to the drawings. However, the specific configuration is not limited to the embodiment, and there are design changes and the like without departing from the scope of the invention. Are also included in the present invention.
For example, in each of the above-described embodiments, the example using the wireless tag 2 has been described, but the present invention is not limited to this. For example, the present invention may use an electronic license plate instead of the wireless tag 2. For details of the electronic license plate, refer to, for example, Japanese Patent Application Laid-Open Nos. 2003-198569 and 2003-248894. Here, the wireless tag and the electronic license plate are collectively referred to as an identification code supplier.

  Moreover, in each embodiment mentioned above, although the example which attaches an antenna to the surface of the barrier rod 13 was shown, it is not limited to this, You may incorporate an antenna in the barrier rod 13. Further, in each of the above-described embodiments, an example in which the apparatus main body is built in the housing has been shown. However, the present invention is not limited to this. You may comprise so that a housing | casing may be attached externally. Moreover, in each embodiment mentioned above, although the example which opens and closes a parking lot with a barrier was shown, it is not limited to this, A parking lot is replaced with a shutter, a gate, a movable fence, or a movable chain. May be opened and closed. Here, the barrier rod, shutter, gate, movable fence, and movable chain are collectively referred to as an entrance / exit restriction member.

  Moreover, in each embodiment mentioned above, although the example which provides a parking lot management apparatus in the entrance / exit vicinity of the parking lot where a four-wheel vehicle enters / exits was shown, it is not limited to this, A parking lot management apparatus is a motorcycle, It may be provided in the vicinity of the entrance / exit of a bicycle parking lot where a vehicle such as a bicycle enters and exits, a garage, a living road, a school road, and other places. In particular, when a parking lot management device is installed near the entrance of a living road or school road, unregistered vehicles other than residents living near the living road or school road use the living road or school road for so-called exit routes. It is possible to prevent the student from going to school and to ensure the safety of the students and students who attend the school. Parking lots, bicycle parking lots, garages, residential roads, school roads, and other places are collectively referred to as temporary vehicle existence areas.

Moreover, in each embodiment mentioned above, although the example which controls only opening / closing of the barrier 13 was shown, it is not limited to this, You may comprise so that the parking space previously allocated to the customer may be guided with an audio | voice. In addition, when the customer is behind with the parking fee, the shutting bar 13 may not be opened and closed even when the identification code is registered.
In addition, each of the above-described embodiments can divert each other's technology as long as there is no particular contradiction or problem in its purpose and configuration.

It is a block diagram which shows the structure of the vehicle entrance / exit management system which is Embodiment 1 of this invention. It is the schematic which shows the use condition of a vehicle entrance / exit management system. It is the schematic which shows the attachment state of a wireless tag. It is a flowchart which shows the process of a control part. It is the schematic which shows the use condition of a vehicle entrance / exit management system. It is a block diagram which shows the structure of the vehicle entrance / exit management system which is Embodiment 2 of this invention. It is the schematic which shows the use condition of a vehicle entrance / exit management system. It is a flowchart which shows the process of a control part. It is a block diagram which shows the structure of the vehicle entrance / exit management system which is Embodiment 3 of this invention. It is the schematic which shows the use condition of a parking lot management apparatus. It is a flowchart which shows the process of a control part. It is a block diagram which shows the structure of the parking lot management apparatus which comprises the vehicle entrance / exit management system which is Embodiment 4 of this invention. It is a flowchart which shows the process of a control part. It is the schematic which shows the state which attached the key holder which comprises the vehicle entrance / exit management system which is Embodiment 5 of this invention to the key.

Explanation of symbols

1, 41, 51, 61 Parking lot management device (management device), 2, 2 ₁ , 2 ₂ wireless tag (identification code supplier), 11, 52, 62 device main body, 11a, 52a housing, 12, 53 ₁ , 53 ₂ Antenna, 13 Barrier (entrance / exit restriction member), 14, 54, 64 Interrogator, 15 Control unit (control drive unit), 16 Memory, 17 Barrier drive unit (control drive unit), 21 Memory chip, 22 antenna coil 31 Parking (vehicle temporary storing section), 31a doorway, 32 open road, 33 _1, 33 ₂ vehicles, 33a front bumper, 34 a license plate, 42 _1, 42 ₂ vehicle detection sensor (first vehicle detection Sensor, second vehicle detection sensor), 63 ₁ , 63 ₂ vehicle detector, 65 ₁ , 65 ₂ BPF, 66 detection signal oscillator, 67 impedance fluctuation detector, 71 key holder (Accessory), 72 Vehicle key, 73 Ring.

Claims (2)

An entrance / exit restriction member that is provided at an entrance / exit in which entry and exit to a temporary vehicle existence area are shared, and restricts entry / exit of the vehicle;
For each identification code for identifying a vehicle, an entry / exit history management table in which the entry / exit history of the corresponding vehicle to the vehicle temporary existence area is stored;
A first antenna provided on a portion of the entrance / exit restriction member facing the outside of the temporary vehicle presence area;
A second antenna provided at a portion facing the inside of the temporary vehicle presence area of the entry / exit restriction member;
A first interrogation signal is transmitted from the outside to the vehicle approaching the doorway via the first antenna;
A second interrogation signal is transmitted via the second antenna to the vehicle approaching the doorway from the inside;
An identification code supplied according to the first question signal is received as an identification code on the entrance side from the identification code supplier provided at the front end of the vehicle via the first antenna,
An interrogator for receiving, via the second antenna, an identification code supplied in response to the second interrogation signal from an identification code supplier provided at the front end of the vehicle as an exit side identification code When,
A control drive unit that drives the entrance / exit restriction member based on the identification code on the entrance side or the exit side and updates the content of the entrance / exit history management table;
A management device having
The first antenna has better directivity on the outside of the temporary vehicle presence area than on the inside,
The second antenna drive both entrance and exit management system that is characterized in that inside the directivity of the vehicle temporary storing area is better than the outside. Provided in the facility adjacent to the vehicle temporary existence area,
The identification code from a separate identification code supplier different from the identification code supplier provided in the vehicle, or the vehicle key of the vehicle to which the identification code or data related to the identification code is attached or an accessory thereof. Or reading data associated with the identification code,
Based on the read identification code or data related to the identification code, a device is provided for controlling the management device or for paying a fee that accompanies the use of the vehicle temporary existence area and the facility. vehicle entrance and exit management system of claim 1 Symbol mounting characterized.

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