JP2000057276A - Information tag detecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the information tag detecting device which uses a noncontact IC tag to securely read information out of an information tag. SOLUTION: The information tag detecting device which uses the noncontact type IC tag 1 reads the information out of the information tag 1 by linking an IC tag reader 46, installed so as to read the information out of the information tag 1, to moving bodies 41 and 53 mounted with the information tag 1 on the IC tag reader 46 only when the IC tag reader 46 detects the moving bodies 41 and 53 approaching within a predetermined distance. Consequently, the information can securely be read out of the information tag 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an information tag detecting device.

[0002]

2. Description of the Related Art Conventionally, a magnetic card on which information is magnetically recorded is used as an information tag, which is an information recording medium of an information tag detecting device, and this information is read by contacting a magnetic head of a magnetic card reader with the magnetic card. Following the commercialization of the contact-type information tag detection device, one-chip CPU
And read IC card with battery in contact type
Practical use of C-card contact information tag detection device
Furthermore, an antenna is built into this IC card,
A non-contact type information tag detecting device using a non-contact type IC card in which an interface with a card reader / writer can be obtained by radio waves or electromagnetic waves has been put to practical use. A non-contact information tag detection device using a battery-less non-contact IC card as an information tag that does not require the incorporation of a battery power supply into the IC card has been commercialized as a ferroelectric RAM (FeRAM) as a volatile memory element. It has been put into practical use (Reference: Monthly Semiconductor World March 1998 and July 1998).

[0003]

In a conventional information tag detecting device using such a non-contact type IC card, consideration has been made so that the non-contact type IC card can be used only in a specific detection area. IC card reader with malicious intent from a distant point invisible to others
It is possible to input information to the writer, and it is not possible to prevent information from being input to the IC card reader / writer from a plurality of different points at the same time. There is a possibility that inconvenience such as inability to write data may occur.

As countermeasures for this, non-contact type IC cards can be read in close contact type (readable distance: several mm or less), proximity read type (readable distance: several tens cm or less) and remote read type (readable distance: several tens cm or less). Standardization is being carried out into three types (several meters or less), and an approach is being put into practical use of a system in which an appropriate one is selected and used according to the use case of a non-contact type IC card.

However, standardizing a plurality of non-contact type IC cards in this way requires a distinction in the use of the non-contact type IC card (the non-contact type IC card to be used needs to be brought into close contact with a reader / writer). Is the user's judgment and use?
There is a disadvantage that the use of the C card is complicated.

In view of the above, the present invention solves these problems in using a non-contact type IC card as an information tag as an information recording medium of an information tag detection device, and improves usability in use. The purpose is to aim.

[0007]

SUMMARY OF THE INVENTION The present invention relates to an information tag detecting apparatus which reads out information of an information tag by a main body device when a moving body to which the information tag is attached approaches the main body device. And detecting means for detecting that the distance between the moving object and the moving object is within a predetermined distance,
When the detecting means detects that the moving body has approached the main body device within the predetermined distance, the main body device is linked to the moving body and the information of the information tag is read, so that the non-contact type Attempts to solve these problems in the use of information tags.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an information tag detecting device according to the present invention will be described below with reference to the drawings.

FIG. 2 is an exploded perspective view showing a main part of the non-contact type IC tag 1 when the non-contact type IC tag 1 is used as an information tag to be attached to a moving body.
A tag 1 is made of a polyimide wiring board member 2 having a strip shape, a first pressure-sensitive adhesive member 4, a reinforcing plate member 3, a second pressure-sensitive adhesive member 5, and a coated paper member. 7
And a double-sided adhesive member 9 and a release layer member 11.

On the upper surface side of the wiring board member 2 in FIG. 2, an IC chip portion 13, a thin battery 14, and an antenna portion 15 are provided, and the antenna portion 15 and the thin battery 14 are mounted on an IC.
It is connected to the chip unit 13.

Next, the assembly of these members will be described. As shown in FIG. 2, the double-sided adhesive member 9 is adhered to the lower surface side of the wiring board member 2, and the release layer member 11 is adhered to the surface opposite to the surface of the double-sided adhesive member 9 adhered to the wiring board member 2. The reinforcing plate member 3 is bonded to the upper surface side of the wiring board member 2 on which the chip portion 13 and the like are disposed via the first pressure-sensitive adhesive member 4, and the reinforcing plate member 3 is bonded to the upper surface side as viewed in FIG. 2
The coated paper member 7 is adhered via the pressure-sensitive adhesive member 5 described above, and these members are integrated to form the non-contact type IC tag 1.
Assemble.

Next, the non-contact type IC described with reference to FIG.
An example of a protective case for housing the tag 1 will be described with reference to FIG. However, the same reference numerals in FIG. 3 denote the same parts as in FIG. 2, and a detailed description thereof will be omitted.

Reference numeral 30 denotes a main part of the protective case. The protective case 30 has a rectangular shape as a whole and includes a front surface portion 31 and a back surface portion 32 each made of a resin sheet material. 32 is adhered at a portion outside the portion indicated by the dotted line 34 to integrate the front surface portion 31 and the back surface portion 32,
The bag portion 35 is provided in a portion inside the portion indicated by the dotted line 34, and the bag portion 35 has a structure in which the non-contact type IC tag 1 can be accommodated.

Reference numeral 36 denotes an opening provided through the surface portion 31. The opening 36 holds the non-contact type IC tag 1 in the bag portion 3.
An opening 37 provided for insertion into the bag 5 is a window formed by an opening formed through the surface 31 of the bag 35, and the window 37 is covered with a film 38 made of a transparent resin sheet material. The non-contact type IC tag 1 inserted into the bag portion 35 through the film 38 can be seen.
Reference numeral 39 denotes a surface portion 3 at each end of the protective case 30.
1 and a through-hole portion provided through the back surface portion 32. Each of these through-hole portions 39 is provided with a protective case 30 for passing a band, a chain, or the like for attaching the protective case 30 to the moving body by winding or the like. It is provided in.

Next, control for opening and closing the home entrance door will be described with reference to FIGS. 1A and 1B. However, FIG. 1A
Also, in FIG. 1B, the same parts as those in FIGS. 2 and 3 are denoted by the same reference numerals, and detailed description will be omitted.

FIG. 1A shows an example of a case where a moving object is detected by an information tag detecting device, when a person 41 or a pet 53 carrying a non-contact type IC tag 1 arrives at a predetermined position at an entrance. FIG. 4 is a diagram for explaining a configuration and operation for reading and collating the non-contact type IC tag 1 after detecting and then opening and closing the entrance door section 44 when the collation result is correct.

In FIG. 1A, reference numeral 40 denotes an entrance, 42 denotes the inside of the entrance, and 43 denotes the outside of the entrance. The entrance 40 is an entrance door 44, an opening / closing control device 45 for the entrance door 44, and a person 41.
Of the non-contact type IC tag 1 provided with an infrared sensor 52 for detecting the approach of the IC tag 1 (hereinafter, referred to as an IC tag reader).

Reference numeral 47 denotes an infrared sensor light for detecting the proximity emitted from the infrared sensor 52, and reference numeral 48 denotes a radio wave for reading the non-contact type IC tag 1 radiated from the IC tag reader 46. The area indicated by the arrow 50 is the infrared sensor 5.
2 is an approach detection area.

In the example shown in FIG. 1, the infrared sensor light 47 is emitted at an upward angle α1 with respect to the horizontal direction 49 and can receive infrared reflected light from this angle direction. The infrared sensor 52 and the IC tag reader 46 are moved to the front door part in a state where the radio wave 48 for reading the IC tag 1 is emitted at an upward angle α2 with respect to the horizontal direction 49 and the radio wave from this angle direction can be received. 44 or near it. The reason why the upward angle α1 and the upward angle α2 are set in this manner is to avoid the influence of infrared noise or radio wave noise that often comes from a horizontal direction or a direction close to horizontal.

Then, when the infrared sensor 52 detects the person 41 by the infrared sensor light 47, the IC tag reading device 46 is operated to read the non-contact type IC tag 1.

Next, as another example of this mobile object, a non-contact type IC tag 1 is attached to pets 53 such as domestic cats and the like.
A case in which the tag reading device reads the non-contact type IC tag 1 attached to the pets 53 will be described.

In this case, a mat 51 for weight detection is laid in the proximity detection area 50 and the IC tag reader 46L having the same function as the IC tag reader 46 is attached to the entrance door 44 or in the vicinity thereof. In this example, the non-contact IC tag 1 is read out by operating the IC tag reader 46L when it is detected that the pets 53 are on the mat 51.

Next, when the person 41 or pets 53 enters the approach detection area 50, the IC tag reading device 46,
The operation of 46L, the entrance door unit 44, and the opening / closing control device 45 of the entrance door unit 44 will be described with reference to FIGS. 1A and 1B.

When the person 41 carrying the non-contact type IC tag 1 enters the approach detection area 50, the reflected light of the infrared sensor light 47 emitted from the infrared sensor 52 changes and the person 41 enters the approach detection area 50. Is detected by the infrared sensor 52, and based on the detection output, the system power supply 61 of the reading device 46 is controlled so that the reader / writer unit 62 is activated, and the communication state with the non-contact type IC tag 1 carried by the person 41 is established. to go into.

As a result of this communication, the reader / writer confirms that the password recorded in the non-contact type IC tag 1 matches the password stored in the reader / writer section 62 in advance.
When confirmed by the writer unit 62, the door opening / closing control unit 45 is set to the unlocked state where the entrance door unit 44 can be opened by relaying the door opening / closing control unit 63 from the reader / writer unit 62,
Then, the person 41 opens the entrance door part 44 to open a part 4 in the entrance.
2, the entrance door 44 is closed by the opening / closing controller 45 when the entrance door 44 is closed.

When it is detected that the pets 53 are on the weight detection mat 51, the IC tag reading device 4 is operated by the detection output from the weight detection mat 51.
The 6L system power supply 61 is controlled and the reader / writer unit 6 is controlled.
2 to the operating state, and the non-contact type I
Enters communication state with C tag 1. The operation of the opening / closing control device 45 after entering the communication state is the same as the case of the person 41 described above, and thus the description is omitted.

Next, IC tag reading devices 46 and 46L
Will be described with reference to FIG. 4 which shows a block diagram of the main part. In FIG. 4, the same portions as those in FIGS. 1A, 1B, 2 and 3 are denoted by the same reference numerals, and detailed description will be omitted.

In FIG. 4, the IC tag reading device 4
6 / 46L, a reader / writer unit 62 including a transmitting / receiving antenna 71, an RF stage 72, a modulator / demodulator 73, a CPU 74, a key matrix 77 and a memory 75, a peripheral device unit 76, an external device unit 78, and a system power supply. Part 61
And a door opening / closing control section 63.

The peripheral device section 76 is connected to an external device I / O 80,
It comprises an input unit 81, a display 82 and an alarm device 83. The external device section 78 is composed of the infrared sensor 52 and the weight detection mat 51.

Next, IC tag reading devices 46 and 46L
Will be described.

The state in which the person 41 is not detected by the infrared sensor 52 and the pets 5
In a state in which No. 3 is not detected, the system power supply 61 is in an off state, and the IC tag readers 46 and 46L are maintained in a so-called sleep state in which a minimum necessary function such as storage maintenance of the memory unit 75 is maintained. However, even in this state, the operation state of the external device section 78 is maintained.

When the person 41 is detected by the infrared sensor 52 or the pets 53 are detected by the mat 51 for weight detection in a state where the necessary minimum functions are maintained, the system power supply 61 is set to the operating state. IC tag readers 46, 46 that have entered and been kept in the sleep state
With the entire L in the operating state, the CPU 74 generates ID number transmission command data, supplies the ID number transmission command data to the modem 73, and modulates the ID number transmission command data into an RF signal in the modem 73.

The ID number transmission command data modulated to the RF signal is supplied to the RF stage 72, and the RF signal whose high frequency power has been amplified to a predetermined signal level is supplied to the transmission / reception antenna 71, and the transmission / reception antenna 71 is contactless. This RF signal is transmitted to the antenna section 15 of the type IC tag 1.

The non-contact type IC tag 1 receiving the ID number transmission command data modulated on the RF signal by the antenna unit 15
Analyzes the RF signal in the IC chip unit 13, determines that the content of the RF signal is an ID number transmission command, modulates and amplifies the ID number recorded in the IC chip unit 13 into an RF signal, From the antenna unit 15 to the IC tag reading device 4
The signal is transmitted to the 6,46L transmitting / receiving antenna 71.

The IC tag readers 46 and 46L having received the RF signal transmitted from the non-contact type IC tag 1 by the transmission / reception antenna 71 convert the received RF signal into an RF signal.
In a stage 72, the high frequency is amplified and supplied to a modem 73 for demodulation.
The ID number recorded on the IC chip unit 13 obtained by demodulation is supplied to the CPU 74. The CPU 74 that has received the supplied ID number compares each of the ID numbers stored in the memory unit 75 with the supplied ID number one by one, and selects one of the ID numbers stored in the memory unit 75. When a matching ID number is found, it is determined that the ID number recorded in the IC chip unit 13 is a valid ID number.

When the CPU 74 determines that the ID number is valid, the CPU 74 sets the open / close control unit 45 to the unlocked state where the entrance door unit 44 can be opened by relaying the door open / close control unit 63. The person 41 enters the entrance door 44
When the door is opened to enter the portion 42 in the entrance and close the entrance door 44, the CPU 74 relays the door opening / closing control unit 63 and locks the entrance door 44 by the opening / closing control device 45. When a pet 53 is included as a moving object equipped with the non-contact type IC tag 1, the opening / closing control device 45 is provided with an automatic opening / closing mechanism, and the entrance door unit 44 is unlocked / locked together with the entrance door unit 44. The automatic opening and closing of the door 44 is performed so that the pets 53 can enter and exit the entrance door section 44.

On the other hand, the CPU receiving the ID number
74 is to compare each of the ID numbers stored in the memory unit 75 with the supplied ID number one by one, and when no matching ID number is found in the ID numbers stored in the memory unit 75 Determines that the ID number recorded on the IC chip unit 13 obtained by demodulation from the non-contact type IC tag 1 is an invalid number, and relays the door opening / closing control unit 63 to open / close the control unit 45. Is maintained in a locked state where the entrance door 44 cannot be opened, and the alarm device 83
Is warned as an alert state.

The input section 81 is composed of character input means such as a keyboard or a tablet. The input section 81 searches for information recorded in the memory section 75 while the IC tag readers 46 and 46L are activated. Is displayed on the display 82, and the entry / exit status of the entrance door unit 44 is displayed as an ID number or a name list corresponding to the ID number.

The key matrix unit 77 includes a first mode for allowing the entrance door unit 44 to enter and exit only when it is determined that the ID number recorded on the IC chip unit 13 is a valid ID number; The second mode, in which the entrance door 44 can always enter and exit, and the entrance door 44 can freely enter and exit only in a specific time range, and the IC tag reading devices 46 and 46L use the IC tag readers 46 and 46L in other times. The third approach is to allow the entrance door 44 to enter and exit only when it is determined that the read ID number recorded on the IC chip section 13 of the non-contact type IC tag 1 is a valid ID number.
Mode, and the door opening / closing control unit 63
5 is provided with a function of switching a mode for controlling 5.

The first mode is a normal mode, and the second mode is a non-contact type IC tag 1 for a long time.
The third mode is a mode in which the entrance is kept open when a plurality of customers who do not carry the non-contact IC tag 1 do not carry the non-contact type IC tag 1 in a specific time range. This mode is provided so as to cope with a case where it is necessary to keep the entrance open during a specific time range, such as when it is known in advance that there is a certain time.

Further, the key matrix unit 77 is provided with a function of turning on / off the sounding of the alarming sound of the alarming device 83, so that the sounding of the alarming sound of the alarming device 83 can be set to the off state as necessary. Constitute.

In this embodiment, a port for connecting to a public telephone line via a telephone line interface is provided in addition to a port for connecting to the external device section 78.
0, and enables communication with the IC tag readers 46 and 46L from a portable computer such as a mobile computer connected to an external telephone terminal using the port by using the personal identification number. The operation status of the readers 46 and 46L is monitored, and the information recorded in the memory unit 75 is not searched, or when the non-contact IC tag 1 is lost, the lost non-contact I
The IC tag readers 46, 46 store the ID number of the C tag 1
Remote login for performing operations such as deletion from the L ID number list may be enabled.

Further, in this embodiment, the CPU 74 relays the door opening / closing controller 63 and sets the door 44 in an unlocked state by the opening / closing controller 45 so that the door 41 can be opened. Open and part 42 in the entrance
When the entrance door portion 44 is closed and the entrance door portion 44 is closed, in a series of operations for locking the entrance door portion 44 by the opening / closing control device 45, the person 41 opens the entrance door portion 44 after setting the door door 44 to this unlocked state. The time until the door 42 enters the part 42 in the entrance and closes the entrance door 44 is measured by a timer means, and when this time exceeds the time set in advance in the timer, the alarm device 83 is set to an alarm state and the entrance door 44 is It may be notified that the door is left open, or the entrance door 44 may be forcibly closed and locked.

Further, in this embodiment, the entrance door section 4
2 has been described as an example from the outside 43 of the entrance to the part 42 in the entrance, but the present invention is not limited to such a case, and the entrance door part 42 can be moved from the part 42 in the entrance to the outside 43 of the entrance. This example can also be applied to the case where the user goes out.

Further, when the moving body is a person 41, the entrance door portion 42 enters the entrance portion 42 from the exterior 43 of the entrance and the entrance door portion 42 enters the entrance 4 from the exterior portion 43 of the entrance.
This example is applied to both cases where the vehicle goes out to 3 and when the moving object is a pet 53, the example is applied only when the entrance door portion 42 enters the portion 42 inside the entrance from the outside 43 of the entrance. This example may be limitedly applied according to the type of the moving object.

Further, in this embodiment, the entrance door section 4
Although the embodiment of the present invention has been described by taking 4 as an example, the present invention is not limited to the entrance door section 44 but can be widely applied to general gate opening / closing devices. For example, the present invention can be applied to a car garage, an entrance / exit gate of a parking lot, a ticket gate of transportation, and the like.

[0047]

According to the present invention, when it is detected on the main device side that a moving object having the information tag attached thereto has approached within a predetermined distance from the main device installed for reading information from the information tag. Only the main device is linked to the moving body to which the information tag is attached, and the information of the information tag is read, so that the information can be reliably read from the information tag.

[Brief description of the drawings]

FIG. 1A is a block diagram illustrating a case where an IC tag reading device according to the present invention is applied to a front door unit. FIG. 3B is a block diagram illustrating a main part of opening / closing control of the entrance door by the IC tag reading device of the present invention.

FIG. 2 is an exploded perspective view illustrating an example of a main part of a non-contact type IC tag.

FIG. 3 is an external view illustrating an example of a protective case for housing the non-contact type IC tag 1.

FIG. 4 is a block diagram illustrating a configuration of a main part of the IC tag reading device.

[Explanation of symbols]

1 Non-contact IC tag, 15 Antenna, 41
{People, 46, 46L} IC tag reader, 51}
{Mat for weight detection, 52} Infrared sensor, 53}
{Pets, 71} transmitting / receiving antennas

Claims (1)

[Claims] 1. An information tag detection device wherein, when a moving body equipped with an information tag having a function of sending out information via an antenna approaches a main device, information of the information tag is read by an antenna of the main device. A detecting unit that detects that a distance between the main body device and the moving body is within a predetermined distance; and detects that the moving body has approached the main body device within a predetermined distance. An information tag detecting device, wherein when the means detects the information, an information tag is read out by linking an antenna of the main device to an antenna of the information tag mounted on the moving body.