JPH04997A - Individual identifying device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention enables an interrogator to read out the memory contents of a transponder attached to each individual without contact using electromagnetic waves, thereby identifying the individual or identifying the individual. The present invention relates to an individual identification device for confirming accompanying information.

[Conventional technology]

In conventional individual identification devices, when attempting to measure surrounding conditions such as temperature, a measuring unit consisting of a measuring device and a controller (computer) connected to it is installed at the point to be measured. Measurement data from the measurement section was input to the transponder.

[ml that invention tries to solve! ! Measuring ambient conditions using such conventional individual identification devices requires a measurement unit (measuring device and controller), and this measurement unit often only measures the conditions at a fixed measurement point. The problem often arose that it was difficult to measure at the desired location.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide an individual identification device that can perform measurement and detection at a desired point and eliminates the need for a measuring section.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention comprises a transponder equipped with a memory and a non-contact communication means inside, and an interrogator equipped with a non-contact communication means therein, and the transponder and the interrogator are connected to each other. In an individual identification device that uses electromagnetic waves to exchange information non-contact, the transponder has a built-in sensor that is sensitive to the surrounding conditions, and this sensor detects the ambient conditions after a predetermined period of time based on the interrogator's interrogation signal. Measurements were taken and the data was stored in the memory, and an alarm was stored in the memory when the interrogator called.

[For production]

The transponder has a built-in sensor that is sensitive to the surrounding conditions, and this sensor measures the ambient conditions after a predetermined period of time based on the interrogator's interrogation signal, stores the measured data in memory, and then uses the interrogator's interrogation signal to Since the measurement data is read from the memory and transmitted to the interrogator, it becomes easy to measure the ambient conditions at a desired point.

〔Example〕

FIG. 1 is a circuit block diagram showing the configuration of an individual identification device according to an embodiment of the present invention, in which an interrogator 1 is connected to a microcomputer 10. The transponder 2 is composed of a transmitting/receiving circuit 11 and an interface 12, and communicates with the transceiver circuit 11 and an interface 12 in a non-contact manner using t magnetic waves. Transmission/reception circuit 21.
Memory 22. It is composed of a battery 23 and a sensor 24 (for example, a temperature sensor). Further, an external controller 3 such as a personal computer is connected to the interrogator 10 via an interface 12.

FIG. 2 is an operation timing chart showing an example of communication between the interrogator 1 and the transponder 2 in the individual identification device which is an embodiment of the present invention. In the figure, the interrogator 1 calls the transponder 2 at timing CALLI, the transponder 2 receives the call at timing CALLI, and responds to interrogator 1 at timing CALLI. Responder 2 is at timing A
Data measured by the sensor 24 after time T4 from the NSI is stored in the memory 22 in the transponder 2 at timing S1. The interrogator 1 calls the transponder 2 at a timing CALL2, the transponder 2 receives the call at a timing CALL2, and responds to the interrogator 1 at a timing ANS2. At this time, the responder 2 reads the data from the sensor 24 from the memory 22 and includes it in the response data. In this way, the interrogator 1 and the transponder 2 communicate without contact using electromagnetic waves.

3 and 4 show the information content of the interrogator signal transmitted from the interrogator 1 and the response signal transmitted from the transponder 2 in FIG. 2.

Figure 3 shows an example of a measurement command, where CALLl is data sent from the interrogator 1 to the responder 2, and includes a command Cl indicating the start of measurement, a sampling timing T indicating the measurement time, and an alarm level AL indicating the measured value of the alarm. Parity P for error checking.

It consists of The response ANS 1 to this is data sent from the transponder 2 to the interrogator 1.

It consists of an individual number 1DNo, and a parity P'I for confirming the command and checking for errors.

CALL3 in FIG. 2 also has the same information content as described above.

FIG. 4 is an example of the measured data output request command, and the call CALL2 is the measured data output request command C! and parity P for error checking! It consists of Response A
NS2 is individual number 1DNo.

It consists of measurement data D+, presence/absence of alarm SA, and parity Pt.

Interrogator 1 in an individual identification device which is an embodiment of the present invention
A flowchart showing the operation of the interrogator 1 is shown in FIG.
The microcomputer IO calls and transmits CALLI to the responder 2 via the transmitter/receiver circuit 11 (S 1 )
, Next, in step S2, the microcomputer 10 of the interrogator 1 receives the response A from the transponder 2 via the transmitting/receiving port 1114.
Receive NSI. Furthermore, in step S3, the measurement time T
, the process proceeds to step S4, where the microcomputer 10 of the interrogator 1 calls the transponder 2 via the transmitting/receiving circuit 11 and transmits CALL2. and receives the response ANS2 from the responder 2.

FIG. 6 is a flowchart showing the operation of the transponder 2 corresponding to the interrogator 1, in which the microcomputer 2 of the transponder 2
0 is the call C from the interrogator 1 via the transmitter/receiver circuit 21
After receiving ALLI, the microcomputer 20 analyzes the command content of the received information in step S2,
If the command is 01, that is, a command for measurement by the sensor 24, the process proceeds to step S3, and if the command is C2, that is, a request to transmit measurement data, the process proceeds to step S).

In step S3, the microcomputer 20 of the transponder 2 transmits the response ANΣ to the interrogator l via the transmitter/receiver circuit 21.Next, in step B4, the microcomputer 20 proceeds to step 5 after time T4 has elapsed; 20 compares whether the set value of the alarm level AL of the sensor 24 is exceeded. If it is exceeded, the process goes to step S8; if not, the process goes to step 311. In step S8, the microcomputer 20 stores the alarm level in the memory 22. The process then proceeds to step Sll.

Further, if the command C2 is received in step S2, the microcomputer 20 reads the measured data from the memory 22 in step S9, and transmits a response ANS2 to the interrogator 1 via the transmitter/receiver circuit 21.

This response ANS2 includes measurement data.

FIG. 7 shows the internal structure of the transponder 2. This transponder is constructed as shown in FIG.

〔Effect of the invention〕

In the present invention, by incorporating a sensor such as a temperature sensor into the transponder, a conventional measuring section is not required, and therefore measurement can be performed at a desired measurement point without being subject to restrictions on measurement points.

Furthermore, there is an advantage that manufacturing costs are reduced by reducing the number of measurement sections in the conventional device.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a circuit showing the configuration of an individual identification device according to an embodiment of the present invention, FIG. 2 is an operation timing chart showing an example of communication between an interrogator and a transponder in the individual identification device, and FIG. Figures 4 and 4 show the content of communication information between the interrogator and the transponder. Figure 3 shows the content of communication information at the time of starting measurement, and Figure 4 shows the content of communication information at the time of requesting measurement data output. FIG. 5 is a flow chart showing the operation of the interrogator of the individual identification device, FIG. 6 is a flow chart showing the operation of the transponder of the individual identification device, and FIG. 7 is an internal configuration diagram of the transponder. l: interrogator, 2: responder, 22: memory, 24: second
Figure 3 Figure 4 Figure 6 Figure 5 Figure 7

Claims (1)

[Claims] 1) A transponder equipped with internal memory and non-contact communication means,
An individual identification device consists of an interrogator equipped with an internal non-contact communication means, and uses electromagnetic waves to communicate information between the transponder and the interrogator in a non-contact manner. This sensor measures the ambient conditions after a predetermined period of time based on the interrogator's interrogation signal, stores the data in memory, and reads out the measured data from the memory based on the interrogator's interrogation signal. An individual identification device characterized in that an alarm is stored in a memory when the value of the measured data exceeds an abnormal value while transmitting the data.