JP3165601B2 - Product identification system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tag attached to a product requiring crime prevention in a field requiring product identification, such as POS, ECR, etc., and a reading device therefor.
The present invention relates to a product identification system .

[0002]

2. Description of the Related Art In the prior art, a code tag is provided with storage means for storing predetermined code information, communication means for communicating with the outside, and notification means for notifying that the storage means matches the received code information. . Therefore, by attaching the code tag to the search target, when code information that matches the code information of the code tag is input from the outside, a notification process is performed and the code tag of the corresponding code information, that is, the search target, Can be notified of the presence or absence and location.

[0003]

However, in the above prior art, a search target is specified, and the location of the search target,
We only knew the existence. In other words, the user outputs the code of the desired product from the reader device and notifies it when the ID code tag reads the ID and the ID matches. In the process of the present invention, not only the matching but also the product-specific The code (information) is converted into an audio signal, output from the tag, and the audio information is read by a reader device, whereby a code unique to the product can be obtained. In addition, since a voice is generated from the tag, a security effect can be obtained at the same time.

[0004]

[MEANS FOR SOLVING THE PROBLEMS] Product identification in the present invention
The system is capable of receiving electromagnetic waves from the outside and converting them to electric power.
Force receiving means and code storage for storing a product-specific code
Means, an oscillating means for oscillating a fixed frequency, and the oscillating means
Storing in code storage means by giving sine wave from means
Code generation means for extracting a code which has been
The signal from the communication means and the signal from the code generation means are combined.
Synthesizing means, and a signal from the synthesizing means is output as voice.
And a tag having an audio output unit for
Signal generating means for generating a signal,
An electromagnetic wave output device that outputs electromagnetic waves in a specific direction based on signals
Receiving the audio output from the tag and the tag;
Voice receiving means for converting the converted voice into an electrical signal;
Converting means for converting an air signal into a digital signal;
Analysis means for analyzing the ground signal and storing the result of the analysis
Storage means for performing the operation, and output means for outputting the result.
And a reading device for reading the tag.
It is stored based on the electromagnetic wave transmitted from the reading device.
Transmits product-specific information by voice and reads
The receiving device receives the sound transmitted from the tag and
Into one signal and analyze it to form one data
All data in the same sampling cycle
In this case, it is determined that the data is normal,
If all data are judged to be normal at the end of data analysis,
The product-specific information stored in the tag is output to the output unit.
Output to an external device while different data exists.
In this case, it is judged as an error and all received data is invalid.
Then, the output means indicates that the abnormal data has been discarded.
It is characterized by reporting .

[0005] The product discriminating system according to the present invention comprises:
The reader is designed to analyze multiple signals with different phases.
And an error processing means.
Receiving the voice transmitted from the tag,
Converted into a digital signal by the interrupt processing means and analyzed
As a result, the sampling size that constitutes one data
If all data is the same, it is judged to be normal and before
Stored in the serial storage means, all said at the end analysis of all the data
If the tag is determined to be normal,
Output the product-specific information to an external device using output means.
On the other hand, if different data exists,
Processing by the error processing means and terminating the processing.
It is a sign.

[0006] The product discriminating system according to the present invention comprises:
Tags are audio output based on the intensity of external electromagnetic waves.
It further comprises means for changing the signal strength.
Things .

[0007]

[Action] In the tag, by an electromagnetic wave that has been supplied from the outside,
Power is supplied from a power receiving circuit, and a sine wave is generated from a transmitting circuit based on the power. This sine wave is transmitted to the code generation circuit, forms a composite waveform, and is output from the speaker. The reader device applies an electromagnetic wave to the tag from an antenna, picks up a sound generated from the tag by a microphone, and outputs the data as data.

[0008] A plurality of tags can be scanned simultaneously in front of the reading device.
If you cancel, there will be a slight difference
Occurs. For this slight difference or scan at the same time
On the other hand, error processing is enabled.

According to the intensity of the electromagnetic wave given from the outside,
The intensity of the output audio signal is changed. This allows
When reading the code, an electromagnetic device that can output the required low volume
Performs at wave intensity and provides sufficient sound when operating for security
Increase the electromagnetic wave intensity so that the amount becomes For this purpose
The electromagnetic wave intensity can be adjusted accordingly.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following is a description of a product identification system according to the present invention.
This will be described with reference to the drawings. FIG. 1 is a diagram showing the product discrimination of the present invention.
FIG. 2 is a block diagram of a tag used in the system. FIG.
Is a perspective view of the tag used in the product identification system of the present invention.
FIG. As shown in the figure, the structure of the tag
In addition, the power receiving circuit (1-1, 2-1) and the oscillation circuit (1
-2, 2-2), a code generation circuit (1-3, 2-3),
Code storage circuit (1-4, 2-4), synthesis circuit (1-
5, 2-5) and speakers (1-6, 2-6).
You. The power receiving circuit (2-1) externally supplies an electromagnetic wave.
When this occurs, the coil resonates, and current flows and power is supplied.
It is. This power is used for the circuit operations of (2-2) to (2-5).
Used to make sound from speakers at the same time
Also used for. Oscillation circuit (2-2) gives a voltage
And a circuit that oscillates. The oscillation signal supplied from here is
At the same time as the speaker of the logic circuit used
-The oscillation sound from-.

The code generation circuit (2-3) shifts data of the code storage circuit one bit at a time based on a clock from the oscillation circuit. The code storage circuit (2-4) is a circuit that stores data in advance. Synthesis circuit (2-5)
Is a circuit that combines the output of the code generation circuit (2-3) and the output of the oscillation circuit. The speaker (2-6) is a device that converts an electric signal output from the synthesis circuit into sound.

In the above configuration, when an electromagnetic wave is applied from outside, power is supplied from a power receiving circuit, and a sine wave is generated in a transmitting circuit based on the power. This sine wave is transmitted to the code generation circuit (2-3) . Code generation circuit (2-
The sine wave transmitted to 3) is frequency-divided, and one code is extracted from the code storage circuit (2-4) into n sine waves. This behavior by the Ricoh de waveform is formed. This code waveform is transmitted to the synthesis circuit (2-5) . FIG. 3 shows the generated composite waveform.
Block diagram and the generated signal waveform
FIG. As shown in the figure,
A sine wave (3-1) is generated, and a code wave is generated from the code generation circuit.
Shape (3-2) is formed, respectively synthesis circuit (2-
Input to 5).

As shown in FIG . 3, a synthesizing circuit (2-
5) In the sine wave (3-1) from the oscillation circuit (2-2)
Code waveform from a code generator circuit (2-3) (3-
Taking the logical product of the 2) to form a composite waveform (3-3). The synthesized waveform (3-3) is transmitted to the speaker (2-6) to generate a sound.

FIG . 4 is used in the commodity identification system of the present invention.
1 is a perspective view of a reading device to be used. As shown
In addition, the reading device includes an antenna (4-2) and a microphone (4).
-3) Target tag (4-1)
, An electromagnetic wave is applied from an antenna (4-2), a sound emitted from the tag (4-1) is picked up by a microphone (4-3), and output as data by an internal reading device.

FIG . 5 is used in the commodity identification system of the present invention.
1 is a block diagram of a reading device to be used. Shows
Thus, (5-1) is a target tag, and (5-
2) is an antenna for generating an electromagnetic wave, (5-3) is a signal generator for generating an electromagnetic wave, (5-4) is a microphone for converting a sound signal such as sound or voice emitted from a tag into a signal waveform, and (5-5). -5) is a sampling point generator,
(5-6) is a device for sampling the signal waveform of the microphone, (5-7) is a CPU for processing the signal, (5-7)
8) a ROM for storing a program for controlling the CPU,
(5-9) is a RAM for storing data, and (5-10) is an output circuit for outputting a code to ECR / POS or the like.

FIG . 6 is used in the commodity identification system of the present invention.
The signal waveform at each point of the reading device block
is there. From the signal generator (5-3), the antenna (5-
Generate electromagnetic waves via 2). On the other hand, based on the signal diagram (6-A) from the signal generator (5-3), the signal diagram (6-6A) showing the point in time when the tag signal should be sampled by the sampling point generator (5-6). -C) is created. FIG. 6 shows the signal taken from the microphone (5-4).
B) is converted into a data signal diagram 6 (6-D) by the sampling device (5-6) based on the sampling signal diagram 6 (6-C). This signal is captured by the CPU (5-7) and
/ 1 information in the RAM (5-9) as shown in FIG.
E). By analyzing this data, the output circuit (5
Output to the outside through -10).

FIG . 7 shows the flow of the above data analysis processing.
It is shown. (7-1) to (7-4) show a routine for taking in the data converted to the data signal FIG. 6 (6-D) by the sampling device, and (7-5) to (7-11) 2 shows a routine for analyzing the obtained data. The symbols used here have the following meanings.
' 1' indicates the total number of sampling data, and the maximum (a *
m) are present. ' a' indicates the number of cycles constituting one data. In the case of the example shown in FIG. 6 , this constant is 4. ' m' indicates the number of data. ' n' is a variable that indicates an integer (0, 1, 2, ...) and a number up to m. Regarding the routine to be analyzed, (7-6) is (a *
n) to (a * (n + 1)), and if this value is " 1", (a * n) to (a *
It is determined that all data up to (n + 1)) is ' 1'. Next, (7-7) is converted from (a * n) to (a * (n +
AND the data up to 1)) with NOT logic,
If this value is ' 1', (a * n) to (a * (n +
It is determined that all the data up to 1)) are ' 0'. That is, if all the data of the cycle constituting one data is the same, it is stored as (Data) (7
-8). This is repeated m times. If there is different data in the cycle configuring one data, it is determined that an error has occurred.

As a result of this analysis, normal termination (7-1)
0), the generated (Data) is output to the outside via the output circuit (5-10).

If an error is determined (7-11), it is determined that the data contains noise, all the read data is invalidated, and the data is discarded without outputting the data . The generation lamp (4-4) is turned on to call attention to the operator.

[0020] of phase is the total number of data in the case of deviation (m *
from particular a) increases, by parallel processing data acquisition routine of FIG. 7, to determine the success or failure. FIG. 8 shows a flow of the processing in this case .
It is .

(8-1) and (8-2) show routines (for example, using a time interrupt, an external interrupt, etc.) for taking in data in accordance with a cycle inputted from the sampling device. (8-3) to (8-10) show data analysis routines performed in parallel. The symbols used here have the following meanings. ' a' indicates the number of cycles constituting one data. In the case of the example shown in FIG.
, This constant is 4. ' m' indicates the number of data.
' n' is a variable that indicates an integer (0, 1, 2, ...) and a number up to m. About the routine to be analyzed, (8-4)
Takes the logical product of the data from (a * n) to (a * (n + 1)), and if this value is ' 1', the data from (a * n) to (a * (n + 1)) All are determined to be ' 1'. Next, (8-5) is converted from (a * n) to (a * (n
+1)) takes the logical product of the negation logic for data up to, if the value is '1', from (a * n) (a *
It is determined that all data up to (n + 1)) is ' 0'. That is, if all the data of the cycle constituting one data is the same, it is stored as (Data) (8-6). This is repeated m times (8-7). if,
If there is different data in the cycle configuring one data, it is determined that an error has occurred. If there is more data than the original number of data (8-8), error processing (8-10)
And if there is no data, the process ends normally (8-
9). Note that the error end includes a parity error in the data.

As a result of this analysis, the processing ends normally (8-9)
If, made (Data) is output circuits shown in FIG. 5 (5
Output to the outside via 10).

FIG . 9 is used in the commodity identification system of the present invention.
FIG. 10 is a perspective view of another tag, and FIG.
It is a lock figure. As shown in the figure , a constant voltage generator (9-3) is added to the configuration of FIG.
1), oscillation circuit (9-2), code generation circuit (9-
4), code storage circuit (9-5), synthesis circuit (9-
6) and a speaker (9-7).

In the power receiving circuit (9-1), when an electromagnetic wave is applied from the outside, the coil resonates, a current flows, and power (transmission waveform) is supplied. This is supplied to the oscillation circuit of (9-2). On the basis of this, a constant voltage is generated by the constant voltage generator if the electromagnetic wave has a certain intensity or higher. With this structure, if the electromagnetic wave has a certain strength or more, the circuits such as the code generator (9-4) and the code storage device (9-5) operate normally, and the amplitude from the oscillation circuit is proportional to the strength of the electromagnetic wave. Is output. That is, a sound signal such as a sound or a voice output externally by combining them has an amplitude waveform proportional to the intensity of the electromagnetic wave.

As can be seen from the above, ECR, POS such as accounting calculation, etc.
It is suitable for use by connecting to such as. By connecting a POS or the like to the output circuit as shown in FIG. 5, it is possible to easily manage products and also obtain a security effect.

[0026]

【The invention's effect】BookBy the invention, audio signals such as sound or voice
Generating a product code using a numberthingThe product
DiscriminationCanWith functionsthingBecome possible and shoplifting
It is also a measure to prevent crime from coming in. Also, sound or voice
Which audio signal is used to recognize the code,
Recognition if the product crosses in front of the reading deviceCan
You. In other words, which side of the product is facing the reader
ThinkthingReadable withoutFor, Less effort when reading
I don't have to.

[0027] When multiple items are scanned at the same time, sound or audio signal is treated as an error if they overlap
It is possible.

[0028] The read only Rudake small sound can recognize the code at the time of take-up, by generating a large sound when for the purpose of crime prevention, etc., to realize the intensity of the sound depending on the purpose.

[Brief description of the drawings]

FIG. 1 is a block diagram of a tag used in a product identification system of the present invention.

FIG. 2 is a perspective view of a tag used in the product identification system of the present invention.

FIG. 3 is a diagram showing a tag used in the product identification system of the present invention.
FIG. 2 is a block diagram of a composite waveform generation and a diagram showing a signal waveform generated therein .

FIG. 4 is a perspective view of a reading device used in the product identification system of the present invention.

FIG. 5 is a block diagram of a reading device used in the product identification system of the present invention.

FIG. 6 is a signal waveform at each point of a block of the reading device used in the product identification system of the present invention.

FIG. 7 is a diagram showing a flow of a data analysis process of the reading device used in the product identification system of the present invention.

FIG. 8 is a diagram showing another processing flow of the data analysis processing of the reading device used in the product identification system of the present invention.

FIG. 9 is a perspective view of another tag used in the product identification system of the present invention.

FIG. 10 shows another product used in the product identification system of the present invention.
It is a block diagram of a tag .

[Explanation of symbols]

 1-1 Power receiving circuit 1-2 Transmission circuit 1-3 Code generation circuit 1-4 Code storage circuit 1-5 Synthesis circuit 1-6 Speaker

──────────────────────────────────────────────────続 き Continuation of front page (51) Int.Cl. ⁷ identification code FI G07G 1/12 321 G07G 1/12 321Z G08B 13/24 G08B 13/24 (58) Fields surveyed (Int. Cl. ⁷ , DB G07G 1/00-5/00 G06K 7/00 G06K 7/08 G06K 17/00 G06K 19/00 G08B 13/00-15/02

Claims (3)

(57) [Claims] 1. An electromagnetic wave is received from the outside and converted into electric power.
Power receiving means and code storage for storing product-specific codes
Storage means, transmitting means for oscillating a predetermined frequency,
By providing a sine wave from the communication
Code generating means for extracting stored code,
The signal from the transmitting means and the signal from the code generating means
Synthesizing means for synthesizing, and a signal from the synthesizing means in voice
A tag having an audio output means for outputting, a signal generating means for generating a signal which is a source of electromagnetic waves,
Outputs electromagnetic waves in a specific direction based on the generated signal
Electromagnetic wave output means and receives audio output from the tag
And a voice receiver that converts the received voice into an electrical signal.
Stage and conversion means for converting the electrical signal into a digital signal
Analysis means for analyzing the digital signal;
Storage means for storing the result of the above, and an output for outputting the result
Means, and a reading device having , the tag, the electromagnetic wave emitted from the reading device,
Dissemination of product-specific information stored based on voice
The reading device receives a sound transmitted from the tag.
Sampling that forms one data as a result of receiving and converting to digital signal and analyzing
If all data in the cycle is the same, it is considered normal
And stored in the storage means, wherein it is determined all the normal at the end analysis of all the data fields
In this case, the product-specific information stored in the tag is output.
Output to external device by input means , but if different data exists, judge as error
Invalidate all the received data, and
A product discriminating system wherein the discarding is notified by the output means . 2. The reading device according to claim 1, wherein the plurality of reading devices have different phases.
Interrupt processing means for analyzing a signal of the same and error processing means
And the reading device receives a sound transmitted from the tag.
And convert it to a digital signal by the interrupt processing means.
And the sampling that constitutes one data as a result of analysis
If all data in the cycle is the same, it is considered normal
And stored in the storage means, wherein it is determined all the normal at the end analysis of all the data fields
In this case, the product-specific information stored in the tag is output.
Output to external device by input means , but if different data exists, judge as error
2. The merchandise discriminating system according to claim 1, wherein the processing is terminated by the error processing means . 3. The tag according to claim 1, wherein the intensity of the external electromagnetic wave is reduced.
Therefore, there is further means for changing the intensity of the output audio signal.
2. The merchandise discrimination system according to claim 1, wherein
M