JPH06317658A - Individual identifying device - Google Patents

Abstract

PURPOSE:To grasp the state of communication in an antenna part even in the case of the distance between an ID controller and the antenna part being long in a device performing contactless communication between an ID controller and a data carrier through the antenna part using electromagnetic waves or the like. CONSTITUTION:An antenna part 2 is provided with a discriminating circuit 25 for discriminating an identification mark, and a state indicator 26 is connected to the discriminating circuit 25. It is so constituted that data transmitted form an ID controller 1 is inputted to a transmitting circuit 21 via the discriminating circuit 25 of the antenna part 2. An identification mark indicating data to be transmitted to a data carrier, and an identification mark indicating transmit data to the antenna part 2 itself are added to the data transmitted to the antenna part 2 from the ID controller 1. When the transmit data to the antenna part 2 itself is discriminated by the discriminating circuit 25, the antenna part 2 displays the state of communication on the state indicator 26 on the basis of this data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an individual identification device used in a production line for managing production instructions and quality information for each product.

[0002]

2. Description of the Related Art Information such as a processing method and an assembling method of a product is written in a data carrier from an ID controller and an antenna section at a starting point of a production line, and then, at a processing or assembling point between the end point and a data carrier. The read data is used for processing and assembling, writing to the quality information data carrier such as processing results, and the individual identification device is used to integrate the product and its production and quality information.

FIG. 10 is a system configuration diagram of a conventional individual identification device. The ID controller 1 is provided with a microcomputer 10 which is the center of control, to which a transmission interface 11, a reception interface 12, a status display interface 13 and a detection sensor interface 14 are provided. The memory 15 is connected to the memory 15 and the power source 16 is provided. The detection sensor interface 14 is connected to the ID detection sensor 4.

The antenna section 2 comprises a transmitting circuit 21, a transmitting antenna 22, a receiving circuit 23, a receiving antenna 24, an interface circuit 25, a status indicator 26 and a voltage stabilizing circuit 27 connected to the power supply 16. The data carrier 3 is a microcomputer 30 which is the center of control.
And a transmitting circuit 31, a transmitting antenna 32, a receiving circuit 33,
It is composed of a receiving antenna 34, a memory 35, and a battery 36.

The operation of this individual identifying apparatus will be described with reference to FIGS. 11 and 12. First, FIG. 11 is a timing chart of the write operation of the ID controller.
_{When the} signal JW indicating that the data carrier 3 is present is transmitted from the ID detection sensor 4 to the ID controller 1 at ₀ , the ID controller 1 inspects the write command CW, the write data D1 and the presence or absence of a communication error at the timing t _1. Interrogation signal CALL1 including parity P1 used for
Is transmitted to the data carrier 3. Data carrier 3 is I
C indicating success or failure of writing to the D controller 1
A response signal ANS1 including 2 and parity P2 is transmitted at timing t ₂ . Timing t ₃ in ID controller 1 status information J3 indicating success or failure of the write
Is transmitted to the antenna unit 2.

FIG. 12 is a timing chart of the read operation of the ID controller. When the signal JR indicating the presence of the data carrier 3 is transmitted from the ID detection sensor 4 to the ID controller 1 at the timing t ₀ , the ID controller 1 is activated. At the timing t ₁ , a read command CR and an interrogation signal CALL 1 including a parity P 1 used for checking the presence or absence of a communication error are transmitted to the data carrier 3. The data carrier 3 transmits to the ID controller 1 a response signal ANS1 including a command C2 indicating a read response, read data D1, and parity P2 at timing t ₂ . At timing t ₃ , the ID controller 1 transmits the status display information J3 indicating the success or failure of reading to the antenna unit 2.

[0007]

In this individual identifying device, if the distance between the ID controller and the antenna section becomes long,
It is desired that the antenna section can also grasp the communication state between the data carrier and the ID controller. An object of the present invention is to provide a means for easily grasping the above-mentioned communication state even at the antenna portion without separately laying a long display signal cable.

[0008]

According to the present invention, a data carrier having a function of holding data and a data carrier attached to an object to be identified and the data carrier are communicated by contact using electromagnetic waves or the like. In the individual identification device including the antenna unit and the ID controller unit, the ID controller adds an identification mark for identifying the data to be transmitted to the antenna unit and the data to be transmitted to the data carrier, and the antenna unit is to transmit the data sent from the ID controller. Based on the identification mark, data to be transmitted to the data carrier is taken out of the above, amplified or modulated, and then transmitted to the data carrier. A discriminating circuit was provided in the antenna section, and the data sent from the ID controller was connected to the transmitting circuit via the discriminating circuit and also to the status display circuit from the discriminating circuit.

[0009]

The ID controller attaches an identification mark for a data carrier to information including a data write / read command and write data, and sends it to the antenna section. The antenna unit takes out the data for the data carrier from the received data by using the identification mark and transmits this to the data carrier. The data carrier transmits the data write result or read data to the ID controller according to the received command. The ID controller receives the data transmitted by the data carrier via the antenna unit, determines whether or not there is a communication error by using the parity included in this data, and determines the result of the determination and the success of writing the data to the data carrier. An identification mark for the antenna is added to the failure data and sent to the antenna unit. The antenna section takes out the data of the judgment result from the received data using the identification mark and displays the content on the status display.

[0010]

FIG. 1 is a system configuration diagram of an embodiment of the present invention, in which the same reference numerals as those in the conventional system configuration diagram are the same parts. The ID controller 1 is provided with a microcomputer 10, which is the center of control, to which a transmission interface 11, a reception interface 12, a detection sensor interface 14, and a memory 15 are connected, and these components and a power source 16 are provided. The detection sensor interface 14 is connected to the ID detection sensor 4.

The antenna section 2 includes a transmitting circuit 21, a transmitting antenna 22, a receiving circuit 23, a receiving antenna 24, and a judging circuit 2.
5, a status indicator 26 and a voltage stabilizing circuit 27. The data carrier 3 includes a microcomputer 30, which is the center of control, a transmission circuit 31, a transmission antenna 32,
The receiving circuit 33, the receiving antenna 34, the memory 35, and the battery 36 are included.

The operation of the ID controller 1 of this individual identification device is shown in the timing chart of the write operation in FIG.
This will be described with reference to the flowchart showing the write operation shown in FIG. 3, the timing chart of the read operation shown in FIG. 4, and the flowchart showing the read operation shown in FIG. In FIG. 2, from the ID detection sensor 4 to I at timing t ₀
When the signal JW indicating that the data carrier 3 exists is sent to the D controller 1, the ID controller 1 at the timing t ₁ the identification mark M1, the write command CW, the write data D1, and the parity P1 used for checking the presence or absence of a communication error. Is transmitted to the data carrier 3. Data carrier 3 transmits a response signal ANS1 consists C2 and parity 2 indicating the success or failure of writing is received interrogation signal CALL1 to processed ID controller 1 at timing t _2.
At timing t ₃ , the ID controller 1 makes the identification mark M
3. An interrogation signal CALL2 including display information J3 indicating the success or failure of writing is sent to the antenna unit 2. As shown in the flowchart of FIG. 3, the ID controller determines the reception state of the signal JW indicating the presence or absence of the data carrier 3 sent from the ID detection sensor 4 in step S1. When it is determined by the signal JW that the data carrier 3 exists, the process proceeds to step S2, and when it is determined that there is no data carrier 3, the process ends. In step S2, the interrogation signal CALL1 including the write data D1 is transmitted to the data carrier 3 via the antenna unit 2 at the timing t ₁ in FIG.
Go to 3. In step 3, using the parity P2 included in the response signal ANS1 received from the data carrier 3, it is checked whether or not there is a communication error in the response signal ANSI. If there is no abnormality, the process proceeds to step S4, and if there is an abnormality, the step Proceed to S5. Through the transmission interface 11 in step S4 and displays information J3 indicating a successful write the identification mark M3 at a timing t ₃ of Figure 2 the feed to the antenna section 2, the process ends. In step 5, the display information J indicating the writing failure is sent via the transmission interface 11.
3 and the identification mark M3 are sent to the antenna unit 2 at the timing 3 in FIG. 2, and the process is ended.

FIG. 4 shows a timing chart of the read operation of the ID controller. At the timing t ₀ , the ID detection sensor 4 sends a signal JR indicating that the data carrier 3 exists to the ID controller 1. ID controller 1
Then, at the timing t ₁ , the identification mark M ₁ and the read command C
An interrogation signal CALL1 composed of R and a parity P1 used for checking the presence or absence of a communication error is transmitted to the data carrier 3. The data carrier 3 receives the interrogation signal CALL1 and, after processing, transmits to the ID controller 1 a response signal ANS1 including a command C2 indicating a read response, read data D1, and parity P2 at timing t ₂ . At timing t ₃ , the ID controller 1 sends an interrogation signal CALL2 including the identification mark M3 and display information J3 indicating the success or failure of the reading to the antenna unit 2. As shown in the flowchart of FIG. 5, the microcomputer 10 of the ID controller 1 performs the I
It is determined whether the signal JR indicating the presence or absence of the data carrier 3 sent from the D detection sensor 4 is received via the detection sensor interface 14. When it is determined by this signal JR that the data carrier 3 exists, the process proceeds to step S21, and when it is determined that there is no data carrier 3, the process ends. The step S21 interrogation signal CALL1 including the read data D1 at and transmitted to the data carrier 3 through the antenna section 2 at the timing t ₁ in FIG. 4, step S
Proceed to 31. In S31, the parity P2 included in the response ANS1 received from the data carrier 3 is used to check whether or not there is a communication error in the response signal ANS1, and if there is no abnormality, the process proceeds to step S41, and if there is an abnormality, step S51.
Go to. In step S41, the transmission interface 11
Through the process ends and transmitted to the antenna unit 2 display information J3 and identification mark M3 indicating a successful read at the timing t ₃ of FIG. Step S51 in via the transmission interface 11 to terminate the process by sending to the antenna unit 2 an interrogation signal CALL2 including display information J3 and identification mark M3 indicating a failed read at a timing t ₃ of FIG.

The writing or reading operation of the antenna section 2 will be described with reference to the flowchart shown in FIG. That is, the determination circuit 25 of the antenna unit 2 sets I in step S12.
Interrogation signal CALL1 sent from the D controller 1
In response to this, the process proceeds to step S22. The discriminating circuit 25 discriminates whether or not the received data is the transmission data to the data carrier 3 using the identification mark included in the interrogation signal CALL1. If this is transmission data to the data carrier 3, the process proceeds to S32 and the antenna unit 2
That is, if it is the transmission data to itself, the process proceeds to step S42. In step S42, the data J3 received by the antenna unit 2 is displayed on the status display unit 26, and the process ends.

The write operation and read operation of the data carrier 3 will be described with reference to the flowcharts shown in FIGS. 7 and 8. First, in FIG. 7, the microcomputer 30 detects the presence or absence of the interrogation signal CALL1 sent from the ID controller 1 in step S13 at the timing t ₁ shown in FIG. Receiving antenna 34, receiving circuit 33
The interrogation signal CALL1 received via the is input to the microcomputer 30. Call signal CALL
When 1 is detected, the process proceeds to step S23, and when not detected, the process ends. In step S23, the presence or absence of a communication error is determined using the parity P1 included in the interrogation signal CALL1 transmitted by the ID controller 1. If there is no error, the process proceeds to step S33, and if there is, the process proceeds to step S53. In step S33, the write data D1 included in the interrogation signal CALL1 is stored in the memory 35 in accordance with the content of the received command CR, and the process proceeds to step S43. In step S43, the transmitting circuit 3
1, the response signal ANS1 including the registration number D2 created in step S33 is transmitted to the ID controller 1 at the timing t ₂ in FIG. 2 through the transmitting antenna 32, and the process is ended. In step S53, the response signal ANS1 indicating the reception failure is transmitted via the transmission circuit 31 and the transmission antenna 32.
Is transmitted to the ID controller 1 at the timing t ₂ in FIG. 2 and the process ends. Figure 8 is a flow chart showing the read operation of the data carrier 3, the microcomputer 30 of the data carrier 3 is detected by the timing t ₁ indicating the presence of the interrogation signal CALL1 the ID controller 1 at step S14 is sent to FIG. Receiving antenna 3
4. Call signal CA received via the receiving circuit 33
The LL1 is input to the microcomputer 30. When the call signal CALL1 is detected, the process proceeds to step S24, and when not detected, the process ends. Step S
At 24, the presence or absence of a communication error is determined using the parity P1 included in the CALL1 transmitted by the ID controller 1. If there is no error, the process proceeds to step S34, and if there is, the process proceeds to step S54. In step S34, a response signal ANS1 including the data D1 to be transmitted to the ID controller 1 is created from the data written in the memory 35 according to the content of the received command CR, and the process proceeds to step S44. Step S44 In the transmission circuit, and terminates the process by transmitting a response signal ANS1 including data D1 being generated to the ID controller 1 at the timing t ₂ in FIG. 4 in step S34 via the transmitting antenna 32. Further, in step S54, the response signal ANS1 indicating the reception failure is transmitted through the transmission circuit 31 and the transmission antenna 32 at the timing t ₂ in FIG.
It is transmitted to the controller 1 and the processing is ended.

9A and 9B are external views of a case accommodating the antenna part, FIG. 9A being a front view and FIG. 9B being a right side view. Three indicator lights 28, 29, 30 are arranged on the front side.
Reference numeral 28 indicates, for example, the presence or absence of writing or reading processing, which is lit when the processing is executed, and 29 indicates success or failure of writing or reading, which is lit when succeeding, 3
0 indicates that the power supply voltage is normal or abnormal, and is lit when normal.

[0017]

According to the present invention, since the discrimination circuit is provided in the antenna section and the status indicator is connected to this, the data sent from the ID controller is inputted to the transmission circuit via the discrimination circuit. The communication result between the data carrier and the ID controller can be grasped in the antenna section by utilizing the communication with the ID controller. Therefore, the maintenance and inspection work of the antenna section provided at a place away from the ID controller is facilitated.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of an embodiment of the present invention.

FIG. 2 is a timing chart of the write operation of the ID controller according to the embodiment of the present invention.

FIG. 3 is a flowchart showing a write operation of the ID controller according to the embodiment of the present invention.

FIG. 4 is a timing chart of the read operation of the ID controller according to the embodiment of the present invention.

FIG. 5 is a flowchart showing a read operation of the ID controller according to the embodiment of the present invention.

FIG. 6 is a flowchart showing a write or read operation of the antenna unit according to the embodiment of the present invention.

FIG. 7 is a flowchart showing the write operation of the data carrier in the embodiment of the present invention.

FIG. 8 is a flowchart showing a read operation of the data carrier in the embodiment of the present invention.

FIG. 9 is an external view of a case accommodating the antenna part,
(A) is a front view, (B) is a right side view

FIG. 10 is a system configuration diagram of a conventional individual identification device.

FIG. 11 is a timing chart of a write operation of a conventional ID controller.

FIG. 12 is a timing chart of a read operation of a conventional ID controller.

[Explanation of symbols]

 1 ID controller 2 Antenna part 3 Data carrier 25 Discrimination circuit 26 Status indicator

Claims (2)

[Claims] 1. A data carrier, which has a function of holding data and is attached to an object to be identified, and an antenna unit and an ID controller, which perform contactless communication between the data carrier and electromagnetic waves or the like. In the individual identification device, the ID controller adds the identification mark for identifying each other to the data to be transmitted to the antenna unit and the data to be transmitted to the data carrier, and the antenna unit transmits the identification mark from the data transmitted from the ID controller. An individual identification device, comprising: a discriminating means for discriminating between the data carrier and the data carrier, the data is transmitted to the data carrier, and the communication state is displayed based on the data to itself. 2. The device according to claim 1, wherein a status indicator is connected to a discrimination circuit provided in the antenna section and the ID is provided.
An individual identification device characterized in that data sent from a controller is configured to be input to a transmission circuit after passing through a discrimination circuit.