JPH02245965A - Data processing method for article discriminator - Google Patents

Abstract

PURPOSE:To improve written data reliability and to shorten a transfer time by storing respective data into the plural memory area of an ID controller beforehand, and using the data as the write data. CONSTITUTION:The respective data are stored into the plural memory areas of a memory 23 of an ID controller 2 beforehand, and when the data are written to a data carrier 4, a write command, which consists of a written command, an address, and the memory area corresponding to the written data, is transmitted from a host controller 1 to the ID controller 2. The ID controller 2 transmits the write command to the data carrier 4 with the designated storage data as the written data. Consequently when the data with the same contents are written to the respective types of the data carriers 4, it is unnecessary for the host controller 1 to transfer the written data every time. Thus the transmitting time can be shortened, and the data reliability can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention provides a data processing method for an article identification device, which comprises:
The ID controller is provided with multiple memory areas for data storage, and various types of data are stored in each memory area in advance. When executing data write processing to the data carrier, the data to be stored in the memory area specified by the host controller is stored in the memory area specified by the host controller. The present invention relates to a data processing method for an article identification device using as written data.

(b) Prior Art FIG. 5 is an explanatory diagram showing a data processing method of a conventional article identification device.

The article identification device includes an upper controller (upper computer) 51, an ID controller 52 electrically connected to the upper controller 51, and an ID controller 5.
2 and a data carrier (data storage unit) 53 that reads and writes data without contact.

For example, when writing data to the data carrier 53, the host controller 51 sends a write command to the ID controller 52 consisting of a "write command", "address (memory area of the data carrier 53)", and "write data". to transmit. Upon receiving this write command, the ID controller 52 transmits a write command consisting of a "write command", "address", and "write data" to the data carrier 53, and causes the data carrier 53 to execute a data write process.

(c) Problems to be Solved by the Invention There are several types of data to be written to a data carrier. Of course, data with the same content is written to data carriers of the same type, and data with the same content may be written to different data carriers. For example, for the same type of data carrier,
When writing the same data to different addresses,
Alternatively, there is a case where common data having the same content is written to data carriers of the same type. In such a case, data with the same content will be written to various data carriers.

By the way, in the data processing method of the conventional article identification device described above, when a data carrier is caused to execute a data write process, the ID controller transmits a write command that is exactly the same as the write command transmitted from the upper controller to the data carrier. It is a method. Therefore, when writing the same data to various data carriers, the upper controller must transmit "write data" in addition to the "write command" and "address" to the ID controller each time. Become. As a result, the data writing operation of the host controller is not only time-consuming, but the more data of the same content is repeatedly transmitted, the higher the risk of transmission errors occurring. Furthermore, since the "write data" of the write command is long as an information signal, there are disadvantages such as excessive transmission time when repeatedly transmitting data of the same content.

SUMMARY OF THE INVENTION An object of the present invention is to provide a data processing method for an article identification device that solves the above-mentioned problems and improves the reliability of written data and reduces transmission time.

(d) Means and operation for solving the problem In order to achieve this object, in the data processing method of the article identification device of the present invention, various data are stored in a plurality of memory areas of the ID controller in advance, and the data When executing data write processing to the carrier, the I
A write command consisting of a write command, an address, and the above memory area corresponding to the write data is transmitted to the D controller, and the ID controller sends the write command to the data carrier to store the data in the specified memory area as write data. It is characterized by transmitting.

According to such a data processing method for an article identification device, various data are stored in advance in a plurality of memory areas of the ID controller, and the data stored in these memory areas is used as write data. In other words, the data stored in each memory area of the ID controller is known to the upper controller (upper computer).

Therefore, when writing data to a data carrier, the upper controller specifies the write command, address (memory area of the data carrier), and memory area number corresponding to the write data, and sends the write command to the upper controller. Transmit. Upon receiving this write command, the ID controller recognizes the data to be stored in the designated memory area (memory area number) as write data. In other words, a write command is transmitted to the data carrier using this stored data as "write data".

Therefore, when writing the same data to various data carriers, the upper controller does not need to transmit the write data each time. Simply specify the number. The memory area number is shorter than "write data" as an information signal. As a result, transmission time can be significantly shortened, and the possibility of transmission errors occurring can be eliminated, and data reliability can be improved.

(e) Examples FIG. 2 is a circuit block diagram showing the article identification device.

The article identification device includes a high-level controller (high-level computer) 1 and an ID electrically connected to the high-level controller 1.
It consists of a controller 2, a read/write head 3 electrically connected to the ID controller 2, and a data carrier (data storage unit) 4 that stores various data.

The ID controller 2 includes a higher-level transmission circuit 21 that receives commands from the higher-level controller 1 and transmits responses, a CPU (central processing unit) 22, a memory 23, and a modulation/demodulation circuit 24. The memory 23 includes a plurality of memory areas 2 for storing data.
Areas such as 3a, 23b, 123c, and write data area 23d are provided (see memory map in Figure 1).
.

Upon receiving the data storage command from the host controller 1, the CPU 22 stores data in the designated memory area (for example, memory area No. 1) 23a, and upon receiving the memory write command from the host controller 1, stores the data in the designated memory area 23a. (For example, memory area Not) 23
The data stored in a is read out, and the read data is used as write data (it is put into the write data area 23d as write data and transmitted to the data carrier 4). Further, the modulation/demodulation circuit 24 modulates or demodulates the transmission/reception signal, and transmits/receives the signal to/from the read/write head (oscillation/reception circuit) 3.

The data carrier 4 has a modulation/demodulation circuit 41 and an encoding/demodulation circuit 41.
Decoding circuit 42 and command memory controller 43
and an EE-PROM 44. The command signal transmitted from the read/write head 3 is received by the command/memory controller 43 via the modulation/demodulation circuit 41 and the encoding/decoding circuit 42. ) is determined. For example, if the command is a write command, data is written to the specified address of the EE-PROM 44.

FIG. 1 is an explanatory diagram illustrating the processing operations of the ID controller 2 as well as the contents of the memory map of the memory 23.

In the embodiment, data to be stored in the ID controller 20 memory 23 is transmitted from the host controller 1 in advance. In other words, the host controller 1 transmits a data storage command to the ID controller [step (rSTJ)
)1]. This data storage command is shown in Figure 4 (A
), as shown in "Storage command" and [Memory area N
.

(for example, memory area No. 1)" 23a and "data" to be stored.

Upon receiving this storage command, the ID controller 2
Specified memory area (memory area No. 1) 23a
The data is stored (stored) in (Sr1). And I.D.
The controller 2 sends a response to the upper controller 1 indicating that the data storage process has been completed (Sr3). This response transmits a "response command" and a "storage end code" as shown in FIG. 4 (C). do.

Thereafter, various data are similarly stored in the memory areas (memory areas No. 2, . . . No. 5) 23b and 23C.

When writing data to the data carrier 4, a memory write command [see FIG. 4(B)] is transmitted from the host controller 1 to the ID controller 2 (Sr4). In other words, as shown in FIG. 3, the host controller 1 sends a "write command" and "address (EE-P
ROM44 write command page area)” and “memory area No.
”. Upon receiving this write command, the ID controller 2 reads the data to be stored in the designated memory area number (for example, memory area No. 1) 23a, and stores it in the write data area 23d (Sr5). After this,
Executes write processing on data carrier 4 (Sr
1). That is, the ID controller 2 reads data from the write data area 23d and uses this as write data. Then, as shown in FIG. 3, the "write command" and "address" received from the host controller 1 are
Then, a write command consisting of "write data (data read from the write data area 23d)" is transmitted to the data carrier 4. The data carrier 4 receives this write command and writes data to the designated address of the EE-PROM 44. Then, the ID controller 2 transmits the end response of this write process to the upper controller 1 (ST7). This response is performed by transmitting a "response command" and a "write end code" as shown in FIG. 4(C).

Thus, when executing data write processing to the data carrier 4, the host controller 2 only needs to specify the "write command", "address", and "memory area NOJ" corresponding to the write data;
There is no need to transmit it. This “memory area N”
The OJ information signal is shorter than the "write data" signal,
Transmission time is short. Therefore, when writing the same data repeatedly to various data carriers,
The host controller does not need to transmit the same content data (write data) over and over again, eliminating the risk of transmission errors and achieving a significant reduction in transmission time.

(f) Effects of the Invention In this invention, as described above, various data are stored in advance in a plurality of memory areas of the ID controller, and when writing data to a data carrier, the host controller responds to the written data. Since the memory area number is designated, when writing the same data to various data carriers, it is sufficient to simply designate the memory area number corresponding to the write data. Therefore,
Since there is no need to transmit the same write data to various data carriers each time as in the past, the risk of transmission errors is eliminated, data reliability is improved, and transmission time is significantly shortened. It has an excellent effect of achieving the purpose of the invention.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram illustrating the processing operation of the ID controller and a memory map in the data processing method of the article identification device according to the embodiment, FIG. 2 is a block diagram showing an example of the circuit configuration of the article identification device, and FIG. The figures are explanatory diagrams showing the data processing method of the article identification device according to the embodiment, FIG. 4(A) is a format showing a data storage command, FIG. 4(B) is a format showing a memory write command, and FIG. C)
is a format showing a response, and FIG. 5 is an explanatory diagram showing a data processing method of a conventional article identification device. upper controller, 2: ID controller, 4: data carrier, 23: memory, 23a/23b
・23c: Memory area, 23ni write data area. Figure 3 Patent applicant Tateishi Electric Co., Ltd. agent
Patent Attorney Shigeru Nakamura Figure 4? - Data Al, inner frame t Sorite command V and screen 0'J space (A) Fig.

Claims (1)

[Claims] (1) Various data are stored in multiple memory areas of the ID controller in advance, and when executing data write processing to the data carrier, the host controller sends write commands, addresses, and write data to the ID controller. A data processing method for an article identification device, in which the ID controller transmits a write command consisting of the memory area and the data to be stored in the designated memory area as write data to a data carrier.