JP2000339418A - Contactless identification system reader - Google Patents

Abstract

(57) [Problem] To provide a non-contact identification system reader or identification information storage unit in which a reader such as a reader / writer reads identification information from an identification information storage unit such as an IC card in a non-contact manner. Provided is a reader or the like evaluated by evaluation data that realizes a dimensional coordinate position. In an evaluation data acquisition system, a moving means 1 such as an orthogonal coordinate robot moves a detection object P, which is an IC card used for evaluation, to a high-precision three-dimensional coordinate in accordance with an instruction from a control means 3. The measurement device 2 is moved to a position and held at the position, and the measurement device 2 uses the reader / writer R used for evaluation to detect electric field intensity data and the non-contact communication state between the reader / writer R and the IC card. And the control means 3 controls the moving means 1 to obtain detection data such as electric field strength at three-dimensional coordinate positions as evaluation data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reader and an identification information storage of a non-contact identification system in which a reader such as a reader / writer reads the identification information stored in an identification information storage such as an IC card in a non-contact manner. In particular, the present invention relates to a reader and an identification information storage unit that are evaluated by evaluation data that realizes a highly accurate three-dimensional coordinate position.

[0002]

2. Description of the Related Art For example, an IC card is constructed by embedding a microcomputer chip, a memory chip, and the like on a card substrate having a size similar to that of a credit card or the like. Has been put to practical use. In an IC card system using such an IC card, for example, power is transmitted from a reader / writer to the IC card to operate the IC card, and information such as control codes and data is transmitted between the reader / writer and the IC card. Communication is performed.

In power transmission and information communication between a reader / writer and an IC card, a non-contact method using electromagnetic coupling or the like is employed in addition to a contact method in which terminals are brought into contact with each other. In an IC card system (non-contact IC card system) employing such a non-contact system, for example, an antenna composed of a coil wound in a square or the like is provided in a reader / writer or an IC card (non-contact IC card). In addition, power transmission and information communication are performed without contact using the antenna.

Specifically, for example, when the reader / writer transmits power to the IC card in a non-contact manner, the IC card operates using the power received from the reader / writer. Communication of information with an IC card is performed without contact. Information communicated between the reader / writer and the IC card includes, for example, identification information (information for identifying the IC card) stored in a memory provided inside the IC card. An information processing device such as a computer connected to the writer can identify the IC card by receiving the identification information received from the IC card from the reader / writer. Further, in the reader / writer, for example, information regarding financial transactions and distribution may be further communicated with the identified IC card.

In the above description, the reader / writer has only a communication function of communicating power and information with the IC card in a non-contact manner, and an external information processing apparatus is provided with an IC card based on the identification information received by the reader / writer. Although the configuration provided with the information processing function of performing the process of identifying information and the processing of information related to financial transactions and the like has been described, for example, the configuration may be such that the reader / writer integrally includes the above-described information processing function together with the above-described communication function Can also.

In the above, an example in which a power supply is not provided inside the IC card has been described. For example, a battery or a battery is provided inside the IC card, and the IC card uses the power of the battery or the like. In such a configuration, for example, a reader / writer can
It is possible to omit the configuration for transmitting and supplying power to the card.

[0007] The non-contact IC card system described above can be used for various purposes by utilizing the characteristic that the reader / writer can identify the IC card based on the identification information received from the IC card. It is possible. Specifically, for example, an individual IC card is carried by a person who enters and leaves a predetermined room, and the identification information stored in the IC card that enters and leaves the room is read by a reader / writer installed at the entrance of the room. By doing so, it is possible to manage the entry / exit status of the person carrying the IC card. Also, for example, if an IC card is added to an object related to physical distribution or an animal such as a livestock, and the identification information stored in the IC card attached to the object or the animal is read by a reader / writer, the It is possible to manage the movement of objects and the animals.

In the non-contact IC card system described above, power and information are communicated between the reader / writer and the IC card in a non-contact manner. For example, in order to evaluate the performance of the reader / writer or the IC card, In addition, it is necessary to obtain the evaluation data on the state of the non-contact communication and the like by changing the positional relationship between the reader / writer and the IC card.

FIG. 4 shows an example of a conventional procedure of processing for acquiring evaluation data. That is, conventionally, first, a user (a person who acquires evaluation data) manually places a reader / writer at a desired position (step S1) and manually places an IC card at a desired position (step S2). When the reader / writer and the IC card are installed (positioned) in this manner, the user visually reads the measured value from a measuring device for obtaining predetermined evaluation data (step S3), and the installed reader / writer A measurement value for the positional relationship with the IC card is obtained as evaluation data. If the measured values in other positional relations are necessary (step S4), the user changes the installation position of the IC card, for example, until the measured values in all desired positional relations are obtained. Measurement is repeated.

[0010]

However, in the conventional method of acquiring evaluation data as described above, since the reader / writer or IC card is manually positioned by the user as described above, stable accuracy is obtained. There was a problem that high positioning could not be performed and the accuracy of the obtained evaluation data deteriorated. Also,
Similarly, in the conventional method of acquiring evaluation data, since the measurement values are read by the user's eyes as described above, accurate measurement values cannot be read and recorded, and the accuracy of the obtained evaluation data is There was a problem that it became worse.

In addition, the conventional method of acquiring evaluation data as described above has a configuration in which a measured value is obtained manually or visually by a user as described above, and therefore, there is a disadvantage that the measurement takes time. Further, since the user must be always near the reader / writer or the like, there is a problem that the user may disturb the state of non-contact communication between the reader / writer and the IC card.

The non-contact IC described above will be described later.
Although an apparatus that is not suitable for evaluating a card system but that measures an electromagnetic environment in a relatively large area has been disclosed in the related art, an example of such an apparatus will be described below. For example, Japanese Patent Application Laid-Open No. Hei 6-3395 discloses an electromagnetic environment measuring device for measuring an electromagnetic environment at a spatial position around a radiated interference source such as a radio transmitting antenna for radiating radio waves from a radio or a television. Then, the levitation body equipped with the antenna for measuring the electromagnetic environment is moved in the air to measure the electromagnetic environment. Further, for example, Japanese Patent Application Laid-Open No.
No. 4 discloses a mobile measuring device that divides an area to be measured into a mesh-shaped area and measures the distribution of electric field intensity by a relay antenna for a PHS or a mobile phone. In this device, a mobile measuring device is mounted. The movable table is moved within the measurement symmetry area to measure the electric field intensity distribution.

Here, the above-mentioned electromagnetic environment measuring device and moving measuring device are used for measuring a relatively large area such as an electromagnetic environment around a radiated emission source such as a radio or a distribution of electric field strength due to a relay antenna for a portable telephone. Since it was developed to measure the electromagnetic environment, etc., it is necessary to measure the electromagnetic environment, etc., in a relatively small readable area or writable area of a reader / writer, such as the non-contact IC card system described above. Is not suitable in that the accuracy of the three-dimensional coordinate position cannot be sufficiently obtained. That is, in a system such as a non-contact IC card system which needs to acquire evaluation data in a relatively small area at fine measurement points, some evaluation data in a relatively large area such as the above-described mobile phone system is used. Since high-precision positioning is required as compared with a system that can be obtained at the measurement points of the above, the above-described electromagnetic environment measuring device or moving measuring device that does not realize such high-precision positioning has a non-contact I
The evaluation of the C card system cannot be performed sufficiently.

In the above-described electromagnetic environment measuring apparatus, a configuration is used in which a floating body on which an antenna is mounted is suspended in the air to measure the electromagnetic environment. In such a configuration, the measurement position (ie, the position of the antenna) is measured. ) Is unstable, it is not possible to obtain evaluation data that realizes a highly accurate measurement position. Further, in the above-described movement measuring apparatus, a configuration is used in which the mobile table on which the antenna is mounted is moved to measure the distribution of the electric field intensity. In such a configuration, the measurement position (that is, the position of the antenna) is changed. Since it cannot be moved up and down, three-dimensional measurement cannot be performed with high accuracy.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is possible to obtain evaluation data realizing a highly accurate three-dimensional coordinate position, thereby achieving a high accuracy. It is an object of the present invention to provide a reader / writer or an IC card evaluated based on evaluation data that realizes a three-dimensional coordinate position.

In the above description, the non-contact IC card system has been described as an example. However, for example, an identification information storage body having the same function as the IC card can be formed using a shape different from the IC card. . As an example, an identification information storage body having the same function as the above-described IC card can be configured as an ID tag (a tag storing identification information (ID)). An ID tag system can also be configured.

In view of the above, the present invention provides a non-contact IC card system and a reader / writer of the non-contact IC card system as described above, as well as a non-contact IC card system including an identification information storage such as an ID tag and a reader / writer such as a reader / writer. It is another object of the present invention to provide an identification information storage unit and a reader of an identification system, that is, the present invention provides an identification information storage unit and a reader evaluated by evaluation data that realizes a highly accurate three-dimensional coordinate position. It is intended to be.

[0018]

In order to achieve the above object, the reader of the non-contact identification system according to the present invention evaluates the electric field strength by the following evaluation data acquisition system. The reader has a function of contactlessly reading the identification information stored in the identification information storage body in the communicable area. That is, in the evaluation data acquisition system for evaluating the reader, the electric field intensity detector detects the intensity of the electric field generated by the reader used for the evaluation, and the moving means is instructed by the three-dimensional electric field intensity detector. It is moved to the coordinate position and held at the position, and the control means controls the moving means to acquire detection data of the electric field strength at the three-dimensional coordinate position as evaluation data.

Here, as the above-mentioned moving means, a high-precision three-dimensional device required by a non-contact identification system such as a non-contact IC card system or a non-contact ID tag system is used.
One that can move and hold the electric field strength detector to the dimensional coordinate position is employed. As a specific example, for example, an industrial robot known as an orthogonal coordinate robot, a cylindrical coordinate robot, a polar coordinate robot, an articulated robot, or the like, or a robot using a mechanism similar thereto can be used. Further, for example, if a feed screw mechanism is used, positioning can be performed with a minute accuracy of 0.01 μm, and in a preferred embodiment, a mechanism using such a mechanism can be employed as a moving unit.

Therefore, the above-described evaluation data acquisition system can acquire evaluation data realizing a high-precision three-dimensional coordinate position. Therefore, it is possible to provide a reader evaluated using such high-precision evaluation data. Thus, the performance of the reader can be improved based on, for example, highly accurate evaluation data.

Further, in the reader and the identification information storage of the non-contact identification system according to the present invention, the non-contact communication state is evaluated by the following evaluation data acquisition system. Note that the reader has a function of contactlessly reading the identification information stored in the identification information storage unit existing in the communicable area as described above, and the identification information storage unit is provided, for example, inside. The identification information is stored in the memory, and the identification information can be read by the reader in a non-contact manner when the identification information exists in the communicable area of the reader.

That is, in the evaluation data acquisition system for evaluating the reader and the identification information storage, the moving means moves the identification information storage used for the evaluation to the designated three-dimensional coordinate position and holds the same at the position. The detecting means detects the state of non-contact communication between the identification information storage and the reader used for evaluation via the identification information storage or the reader, and the control means controls the moving means. Then, the detection data of the non-contact communication state for the three-dimensional coordinate position is obtained as evaluation data.

Here, as described above, as the moving means, the IC card or the IC card is moved to a highly accurate three-dimensional coordinate position required by a non-contact identification system such as a non-contact IC card system or a non-contact ID tag system. What can move and hold | maintain an identification information storage body, such as an ID tag, is adopted.

Therefore, the above-described evaluation data acquisition system can acquire evaluation data realizing a high-precision three-dimensional coordinate position. Therefore, a reader or identification information storage evaluated using such high-precision evaluation data can be obtained. A body can be provided, whereby the performance of the reader and the identification information storage body can be improved based on, for example, highly accurate evaluation data.

The state of the non-contact communication includes, for example, a state of a voltage value induced in an identification information storage unit used for evaluation by an electric field generated by a reader used for evaluation, For example, a state such as whether information from an identification information storage unit used for evaluation can be read by a reader used for evaluation, and a state used for evaluation by a reader used for evaluation, for example. It is possible to detect a state such as whether or not information can be written to the identification information storage body. The present invention is not limited to these, and various states for evaluating the performance of the reader and the identification information storage body may be detected as the above-mentioned state of the non-contact communication.

Here, the identification information storage body according to the present invention is not necessarily limited to the above-mentioned IC card or ID tag, but the point is that the identification information is stored and the identification information is read by a reader in a non-contact manner. The identification information storage body may be configured as a plate such as a name plate. Further, the reader according to the present invention is not necessarily limited to the reader / writer described above, and it is essential that the reader be any device that can read the identification information stored in the identification information storage body in a non-contact manner. For example, a reader having only a function of reading information from the identification information storage body and not having a function of writing information to the identification information storage body may be used as the reader.

The non-contact identification system according to the present invention is not necessarily limited to the non-contact IC card system and the non-contact ID tag system described above. Any system may be used as long as it is narrow and it is necessary to obtain evaluation data in the area with high accuracy.

The field to which the non-contact identification system according to the present invention is applied is, in short, any field in which the reader reads the identification information stored in the identification information storage body. The contactless identification system according to the present invention may be applied to a field. Specifically, the non-contact identification system according to the present invention can be applied not only to a system that only identifies an identification information storage body, for example, but also to an identification information storage body in which a reader is identified, for example. The present invention can also be applied to a system for communicating information on financial transactions, distribution, and the like.

Further, the present invention is evaluated based on a reader and an identification information storage used for evaluation and an evaluation data obtained by the evaluation data acquisition system using the reader and the identification information storage. May be the same as the reader and the identification information storage body, or may be different. That is, it is preferable to obtain evaluation data using the reader itself according to the present invention or the identification information storage body according to the present invention, since the reader and the identification information storage body can be evaluated with extremely high accuracy. But,
For example, even when the evaluation data is obtained using a reader or an identification information storage body having the same configuration as the reader according to the invention or the identification information storage body according to the invention, a degree that is practically effective is obtained. It is possible to make an evaluation.

The reader and the identification information storage device according to the present invention are characterized by being evaluated by the above-described evaluation data acquisition system. The term includes, for example, not only a reader or an identification information storage body that has been simply evaluated after being manufactured, but also a reader or an identification information storage body that has been improved or adjusted based on the evaluation, for example. For example, the concept includes a reader and an identification information storage newly manufactured based on evaluation data obtained using a reader and an identification information storage manufactured in the past.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment according to the present invention will be described with reference to the drawings. In this example, a non-contact IC card system was used as the non-contact identification system according to the present invention, a reader / writer was used as the reader, and an IC card (non-contact IC card) was used as the identification information storage body. Show the case. Here, the reader / writer has a function of reading information stored in an IC card in a readable area in a non-contact manner and a function of writing information in a non-contact manner in an IC card in a writable area. The identification information and the like are stored in a memory provided in the inside, and when the information exists in the readable area of the reader / writer, the information can be read without contact by the reader / writer, or when the information exists in the writable area of the reader / writer. It has a function of writing information in a contactless manner by a reader / writer.

In the contactless IC card system of the present embodiment, as an example, the maximum communication distance at which the reader / writer can read information from the IC card and the maximum communication distance at which the reader / writer can write information to the IC card. A case where the distance is different, that is, a case where the above-mentioned readable area and the writable area are different is shown, and such a characteristic is known as a characteristic unique to a general non-contact IC card system.

If the readable area where the reader / writer can read information from the IC card is different from the writable area where the reader / writer can write information on the IC card as in this example, the present invention The communicable area (that is, the area in which the reader reads the identification information stored in the identification information storage body in a non-contact manner) indicates the readable area, but the readable area in the non-contact IC card system. Both the writable area and the writable area are relatively narrower than the communicable area of a mobile phone system or the like.

FIG. 1 shows an example of an evaluation data acquisition system for a contactless IC card system according to the present invention. The evaluation data acquisition system includes a reader / writer R used for evaluation and a reader / writer R for evaluation. Object P, which is an electric field intensity detector or an IC card used in the method, a moving device (in this example, an automatic positioning device and automatic position detecting device) 1 for moving the object P, and detection data such as electric field intensity. Measuring device 2 for moving, moving device 1 and measuring device 2
And a control device 3 for controlling the operation. Also,
The control device 3 and the mobile device 1 are connected via an interface C1, the control device 3 and the measurement device 2 are connected via an interface C2, and the detection object P and the measurement device 2 are connected via an interface C3. Connected through.

The reader / writer R is fixedly installed at a predetermined position, for example, and has a function of transmitting electric power to an IC card in a non-contact manner by generating an electric field using an antenna provided inside, for example. And a function of transmitting information and information without contact. Further, the reader / writer R has a function of receiving information transmitted from an IC card in a non-contact manner using, for example, an antenna provided therein. In addition,
In this example, the power transmittable area where the reader / writer R can transmit and supply power to the IC card and the above-mentioned readable area are set to the same area. The area is set smaller than the possible area.

As the detector P, for example, an electric field intensity detector or an IC card is used. In this example, the electric field intensity detector has a function of detecting the intensity of the electric field generated by the reader / writer R used for evaluation, and the electric field intensity detection data, which is the detection result, is transmitted to the interface C3. It has a function of outputting to the measurement device 2 via the interface.

The IC card has, for example, a function of receiving power and information transmitted from the reader / writer R in a non-contact manner by using an antenna provided therein, and a function of receiving a reader / writer using an antenna provided therein. On the other hand, it has a function of transmitting information such as identification information in a contactless manner. In this example, a case is shown in which a power supply is not provided inside the IC card. However, for example, an IC card having a power supply inside may be used.

In the present embodiment, the moving device 1 is constituted by, for example, a robot using a rectangular coordinate robot or a mechanism similar thereto, and is fixedly controlled by the control device 3 via the interface C1. It has a function of moving the held detection object P to a designated three-dimensional coordinate position and holding it at that position. Further, in the present example, the moving device 1 is fixedly installed on, for example, a floor or a table.

Here, FIG. 2 shows a more detailed configuration example of the moving device 1 described above, which will be described. FIG. 1A shows an example of a three-dimensional moving unit and a frame that constitute the moving device 1. The moving device 1 of the present example uses the X-axis and It has a function of moving the detection object P to a highly accurate three-dimensional coordinate position by moving the detection object P with high precision in each of the Y-axis and Z-axis directions. Specifically, in this example, as shown in FIG. 3A, a first moving mechanism having a function of holding and moving the detection object P in the Z-axis direction (up and down in FIG. 3A). Departments,
The second moving mechanism unit having a function of moving the first moving mechanism unit in the X-axis direction (left and right in FIG. 1A), and the first moving mechanism unit and the second moving mechanism unit in the Y-axis direction (FIG. The moving device 1 is configured using a third moving mechanism having a function of moving back and forth in (a)).

FIG. 2B shows an example of an operation control unit constituting the mobile device 1 and the above-mentioned control device 3 for controlling the operation of the mobile device 1. Although not shown in FIG. 1, in FIG. 2B, a computer 3a having a display screen, a CPU, and the like as the control device 3 is shown.
Also, an example of the program input device 3b is shown, and two interfaces C11 and C12 are shown as an example of the interface C1.

As shown in FIG. 2B, the operation control unit of the moving apparatus 1 of the present embodiment includes, for example, a pulse oscillator (controller) 11 for oscillating a pulse and a positioning control driver for controlling the positioning of the detection object P. 12 and an AC servomotor (AC servomotor) 13 for moving a mechanism for moving the detection object P. The pulse oscillator 11 is connected to the control devices 3a and 3b via the interfaces C11 and C12, and is also connected to the positioning control driver 12 via the interface C13.
3 is connected via two interfaces C14 and C15.

The pulse oscillator 11 includes the control devices 3a, 3b
Is controlled via the interfaces C11 and C12 by the
Has a function of outputting to the positioning control driver 12 via the. The positioning control driver 12 responds to the pulse input from the pulse oscillator 11 by the interface C1.
4. It has a function of controlling the positioning of the detection object P by controlling the AC servomotor 13 via C15.

The AC servomotor 13 is controlled by the positioning control driver 12 to move the first moving mechanism, the second moving mechanism, and the third moving mechanism, for example, so that the detection object P can be moved with high precision. It has a function of moving to a three-dimensional coordinate position. In FIG. 2B, one A
Although only the configuration for controlling the C servo motor 13 is shown, in this example, for example, the AC servo motor and the configuration for controlling the AC servo motor for each of the above-described first to third moving mechanism units are described. Provided.

Further, in the present embodiment, as a preferred embodiment of the operation control section of the moving device 1, a configuration is employed in which servo control (feedback control) is performed using a servomotor 13 capable of generally performing highly accurate position control. Therefore, it is possible to realize that the detection object P is moved to a highly accurate three-dimensional coordinate position and held at the position.

In this embodiment, the moving device 1 moves the detecting object P to the three-dimensional coordinate position designated by the control devices 3a and 3b.
Is moved and held at the position, so that the electric field strength detector according to the present invention is moved to the designated three-dimensional coordinate position and held at the position, and the moving means is used for the evaluation according to the present invention. The moving means for moving the identification information storage body to the designated three-dimensional coordinate position and holding the same at the designated position.

The measuring device 2 is controlled by the control unit 3 via the interface C2, thereby acquiring detection data such as electric field strength from the detection object P via the interface C3, and transmitting the acquired detection data to the interface C2. It has a function of transmitting to the control device 3 via the control unit 3.

Here, in this example, as described above, there are a case where an electric field intensity detector is used as the detection object P and a case where an IC card is used, and a functional example of the measuring device 2 in each case will be described. . That is, for example, the detection object P
When an electric field intensity detector is used as the measurement device 2, the measurement device 2 acquires the electric field intensity detection data detected by the electric field intensity detector via the interface C3, and acquires the acquired detection data via the interface C2. What has the function of transmitting to the control device 3 is used.

For example, when an IC card is used as the detection object P, the measuring device 2 performs non-contact communication between the IC card used for evaluation and the reader / writer R used for evaluation. A device having a function of detecting a state from the IC card via the interface C3 and transmitting the detection data of the non-contact communication state thus obtained to the control device 3 via the interface C2 is used.

The contactless communication state detected by the measuring device 2 may be various. However, in this example, as a practically effective specific example, for example, a reader / writer R used for evaluation is used. The state of the voltage value induced in the IC card used for the evaluation by the electric field generated by, for example, the information from the IC card used for the evaluation by the reader / writer R used for the evaluation can be read. Indicates a case where a state such as whether the information can be written or a state such as whether information can be written into an IC card used for evaluation by a reader / writer R used for evaluation is detected as a non-contact communication state. .

In this example, when an IC card is used as the detection object P, the above-described measuring device 2 performs non-contact communication between the IC card used for evaluation and the reader / writer R used for evaluation. By detecting the state via the IC card, the state of non-contact communication between the identification information storage body used for evaluation and the reader used for evaluation according to the present invention can be determined by the identification information storage body or Detection means for detecting via the reader is configured. In FIG. 1 of the present embodiment, the configuration example in which the measuring device 2 detects the non-contact communication state via the IC card is shown. However, for example, the measuring device 2 and the reader / writer R are connected via the interface. Alternatively, a configuration in which the measurement device 2 detects a non-contact communication state via the reader / writer R may be used.

The control device 3 comprises, for example, a personal computer having a CPU, a memory and the like.
Has a function of performing various processes and controls by expanding and executing a control program in a RAM. Specifically, the control device 3 of the present example moves the detection object P held by the moving device 1 to the specified three-dimensional coordinate position by giving an instruction to the moving device 1 via, for example, the interface C1. Has a function. Further, the control device 3 of the present example has a function of obtaining detection data such as electric field strength via the measurement device 2 by giving an instruction to the measurement device 2 via the interface C2, for example.
Further, the control device 3 of the present embodiment has a function of acquiring detection data for various three-dimensional coordinate positions of the detection object P as evaluation data by performing such control.

Here, FIG. 3 shows the acquisition of evaluation data performed by the control device 3, the moving device (in this example, the automatic positioning device and the automatic position detecting device as described above) 1 and the measuring device 2 of the present embodiment. An example of the processing procedure is shown according to time. That is, first, the control device 3 executes, for example, a control program incorporated in advance by the CPU, so that data of a three-dimensional coordinate position (data of a requested position) requested to the moving device 1 as a destination of the detection object P is obtained. Send
The data of the request position for acquiring the evaluation data is set in the control device 3 in advance by, for example, a user.

Next, upon receiving the data of the above-mentioned requested position from the control device 3, the moving device 1 moves the detecting object P to the three-dimensional coordinate position designated by the data, and detects the detected object P at the three-dimensional coordinate position. Hold the body P. Here, when the moving process of the detecting object P is completed, the moving unit 1 outputs a signal (moving end signal) for notifying that the moving process is completed for confirmation and the destination of the moving of the detecting object P. The data of the dimensional coordinate position (data of the current position) is transmitted to the control device 3.

Next, when the control device 3 receives the above-mentioned movement end signal and the data of the current position from the mobile device 1,
Based on the data, it is confirmed whether or not the detection object P has been accurately moved to the three-dimensional coordinate position indicated by the data of the required position. Then, for example, when the control device 3 confirms that the detection object P has not been accurately moved to the specified three-dimensional coordinate position, the control device 3 transmits the data of the requested position to the moving device 1 again, and the control device 3 described above. While the moving process is executed again by the moving device 1, when it is confirmed that the detection object P has been accurately moved to the designated three-dimensional coordinate position, the detection data is acquired by the measuring device 2 as follows.

That is, first, the control device 3
, An instruction signal (measurement value transmission request signal) for acquiring detection data such as electric field strength is transmitted. Next, when receiving the above-described measurement value transmission request signal from the control device 3, the measurement device 2 transmits detection data (measurement value data) such as electric field strength acquired via the detection object P to the control device 3. .

When receiving the above-described detection data from the measuring device 2, the control device 3 acquires the detection data for the three-dimensional coordinate position of the detection object P as evaluation data. In addition, the control device 3 can acquire evaluation data for various three-dimensional coordinate positions by acquiring detection data for various three-dimensional coordinate positions in the same manner.

In a preferred embodiment, the control device 3 of the present embodiment controls the detection object P via the detection object P by the measuring device 2 after a predetermined time has elapsed since the movement of the detection object P to the required position by the moving device 1. Control to obtain the detection data. That is, in the actual device, the position of the detection object P may slightly fluctuate at the time when the detection object P has just been moved.
The detection data is acquired after a lapse of a predetermined period of time such that the movement of the detection object P stops and stops after the movement of the detection object P is completed. As a result, in this example, it is possible to acquire detection data for an extremely accurate three-dimensional coordinate position.

As an interface according to the communication protocol between the control device 3 of the present example and the mobile device 1 of the present example described above, for example, RS232C, RS485, C bus, or ISA bus is used. As an interface based on the communication protocol between the control device 3 of the present example and the measuring device 2 of the present example described above, for example, a GP-IB bus is used.

As a specific example of obtaining evaluation data by the evaluation data obtaining system of the present embodiment, a specific example of obtaining each of the four types of evaluation data such as the above-described electric field intensity will be described. In the first specific example, the detection object P
An electric field intensity detector is used as, for example, the control device 3 stores the electric field intensity detection data detected by the electric field intensity detector in a memory in association with the three-dimensional coordinate position of the electric field intensity detector. In addition, data indicating a spatial distribution of an electric field generated by the reader / writer R can be acquired as evaluation data.

In the second specific example, an IC card is used as the detector P. For example, the control device 3 determines the detection data of the voltage value induced in the antenna of the IC card and the three-dimensional coordinate position of the IC card. By storing them in the memory in association with each other, it is possible to acquire, as evaluation data, data on the distribution state of the voltage value induced in the antenna of the IC card by the electric field generated by the reader / writer R with respect to the three-dimensional coordinate position. In this case, as the measuring device 2, for example, a device having a function of detecting a voltage value induced in the antenna of the IC card via the interface C3 is used.

In the third specific example, an IC card is used as the detection object P. For example, detection data indicating whether information transmitted from the IC card in a non-contact manner is read by the reader / writer R is transmitted to the control device 3. Is 3 of the IC card
By storing the data in the memory in association with the dimensional coordinate position, the data of the maximum communication distance at which the reader / writer R can read information from the IC card can be obtained as evaluation data. It is possible to acquire, as evaluation data, data on the distribution state with respect to the three-dimensional coordinate position of the readable area in which the image can be read.

In this case, as the measuring device 2, for example, a device having a function of detecting whether or not the information transmitted from the IC card by the reader / writer R has been read (presence or absence of reading) is used. In this example, the reading / writing data indicating whether the reader / writer R has read the information from the IC card is transmitted to the IC card, and the measuring device 2 detects the reading / non-reading data via the IC card. I get it as data. In addition, instead of such a configuration, for example, the measuring device 2 and the reader / writer R may be connected to each other so that the measuring device 2 directly obtains the read presence / absence data from the reader / writer R. Further, for example, the control device 3 may detect the presence or absence of reading by the reader / writer R.

In the fourth specific example, an IC card is used as the detection object P. For example, the control device 3 transmits detection data indicating whether information transmitted from the reader / writer R in a non-contact manner has been written to the IC card. Is stored in the memory in association with the three-dimensional coordinate position of the IC card, so that the data of the maximum communication distance at which the reader / writer R can write information to the IC card is obtained as evaluation data. It is possible to obtain, as evaluation data, distribution state data with respect to the three-dimensional coordinate position of the writable area where R can write information on the IC card.

In this case, the measuring device 2 determines whether or not the information transmitted from the reader / writer R has been written into the memory of the IC card (whether or not the information has been written).
In this example, the measuring device 2 directly obtains, from the IC card, data indicating the presence or absence of writing as detection data. Also, instead of such a configuration, for example, the measurement device 2 is connected to the reader / writer R, and the IC card transmits to the reader / writer R write / non-write data indicating whether information from the reader / writer R has been written. In this way, the measurement device 2 can also acquire the writing presence / absence data as detection data via the reader / writer R. Further, for example, the control device 3 may detect the presence or absence of writing to the IC card by the reader / writer R.

In the present embodiment, the control device 3 controls the moving device 1 and the measuring device 2 to obtain detection data for the three-dimensional coordinate position of the detection object P as evaluation data, thereby obtaining the movement according to the present invention. Control means for controlling the means to obtain detection data of the electric field strength with respect to the three-dimensional coordinate position as evaluation data; Control means for acquiring the information as.

In this example, the control device 3 having a CPU, a memory and the like executes a control program,
Although the above-described configuration is used to control the process of acquiring the evaluation data, in the present invention, each functional unit for executing the process may be configured as an independent hardware circuit. Further, the present invention can be understood as a computer-readable recording medium such as a floppy disk or a CD-ROM storing the above-described control program, and the control program is input from the recording medium to the computer and executed by the processor. Thereby, the processing according to the present invention can be performed.

As described above, the evaluation data acquisition system of this embodiment can acquire various evaluation data realizing a high-precision three-dimensional coordinate position. Since the evaluation data can be automatically acquired by setting the coordinate position information and the like in the control device 3 in advance, for example, a large amount of high-precision evaluation data with small three-dimensional coordinate intervals can be obtained in a short time. Can be obtained. Then, the performance of the reader / writer and the IC card according to the present invention is finely evaluated by evaluating the reader / writer and the IC card according to the present invention by the evaluation data acquisition system capable of acquiring such highly accurate evaluation data. And the performance of the reader / writer or IC card according to the present invention can be improved based on such evaluation.

[0068]

As described above, according to the reader of the non-contact identification system according to the present invention, the electric field intensity detector for detecting the intensity of the electric field generated by the reader used for the evaluation, A moving unit such as a rectangular coordinate robot that moves the intensity detector to a designated three-dimensional coordinate position and holds the position, and obtains, as evaluation data, electric field intensity detection data for the three-dimensional coordinate position by controlling the moving unit. The reader is evaluated by an evaluation data acquisition system including a control unit that performs
It is possible to improve the performance of the reader based on the evaluation data that realizes the dimensional coordinate position.

Further, in the reader and the identification information storage unit of the non-contact identification system according to the present invention, the identification information storage unit used for evaluation is moved to the designated three-dimensional coordinate position and held at the position. Moving means such as a rectangular coordinate robot, detecting means for detecting the state of non-contact communication between the identification information storage and the reader used for evaluation via the identification information storage or the reader, And a control means for controlling the means to obtain detection data of the non-contact communication state with respect to the three-dimensional coordinate position as evaluation data. The evaluation data acquisition system evaluates the reader and the identification information storage body. Similarly to the above, it is possible to improve the performance of the reader and the identification information storage based on the evaluation data that realizes a highly accurate three-dimensional coordinate position.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of an evaluation data acquisition system for a contactless IC card system.

FIG. 2 is a diagram illustrating a more detailed configuration example of a moving device.

FIG. 3 is a diagram illustrating an example of a procedure of a process performed by the evaluation data acquisition system.

FIG. 4 is a diagram illustrating an example of a procedure of a process for acquiring evaluation data according to a conventional example.

[Explanation of symbols]

1 ··· Mobile device, 2 · · Measuring device, 3, 3a, 3b
..Control device, R..reader / writer, P..detector,
C1 to C3, C11 to C15 interface 11
..Pulse oscillators 12 Positioning control drivers
13. AC servo motor,

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yukio Otani 3-14-20 Higashinakano, Nakano-ku, Tokyo Inside Kokusai Electric Co., Ltd. (72) Inventor Kazuo Funakubo 3- 14-20 Higashinakano, Nakano-ku, Tokyo Kokusai Electric (72) Inventor Yuzo Kashiwagi 3-14-20 Higashinakano, Nakano-ku, Tokyo Kokusai Denki Co., Ltd.F-term (reference) 5B058 CA03 CA17 KA28 YA11 YA13 5J070 AK22 BC06 BC08 BC29 BG02

Claims (3)

[Claims] 1. A reader of a contactless identification system for reading contactlessly identification information stored in an identification information storage unit existing in a communicable area, wherein the intensity of an electric field generated by the reader used for evaluation is determined. An electric field intensity detector to detect, moving means for moving the electric field intensity detector to a designated three-dimensional coordinate position and holding the position, and controlling the moving means to detect electric field intensity detection data for the three-dimensional coordinate position. A reader characterized by being evaluated by an evaluation data acquisition system comprising control means for acquiring as evaluation data. 2. A reader of a contactless identification system for reading contactlessly identification information stored in an identification information storage unit existing in a communicable area, wherein an identification information storage unit to be used for evaluation is designated.
The moving means for moving to the dimensional coordinate position and holding it at the position, and the state of non-contact communication between the identification information storage body and the reader used for evaluation, via the identification information storage body or the reader. The evaluation is performed by an evaluation data acquisition system including: a detection unit for detecting; and a control unit for controlling the moving unit and acquiring detection data of a non-contact communication state with respect to the three-dimensional coordinate position as evaluation data. Reader. 3. An identification information storage for a non-contact identification system which stores identification information and reads the identification information in a non-contact manner by the reader when the identification information is present in a communicable area of the reader. 3 specified identification information storage
The moving means for moving to the dimensional coordinate position and holding it at the position, and the state of non-contact communication between the identification information storage body and the reader used for evaluation, via the identification information storage body or the reader. The evaluation is performed by an evaluation data acquisition system including: a detection unit for detecting; and a control unit for controlling the moving unit and acquiring detection data of a non-contact communication state with respect to the three-dimensional coordinate position as evaluation data. Identification information storage.