JP4482879B2 - Process information management system - Google Patents

Description

The present invention relates to a process information management system , and more particularly to a management system suitable for managing processing process information in a food processing factory.

  In food processing factories, in order to respond to quality assurance of foods, investigation of causes when problems occur in products, etc., processing information in food processing processes is managed. The management of processing information is, for example, recording information such as whether heat treatment has been appropriately performed on a product that requires heat treatment as a history for each product, and reading the history as necessary. Be able to do that.

  Conventionally, the recording of the history of processing information as described above has been a manual input operation. However, at present, automation is being promoted on the production line of factories in order to increase the efficiency of product manufacturing. Under such circumstances, considerable labor is required to manually manage the process information of all products, and human error is unavoidable.

A method and apparatus for solving these problems is disclosed in Patent Document 1. The method and apparatus disclosed in Patent Document 1 are intended to automate history recording as to whether a heat treatment on a product has been appropriately performed at a temperature higher than a specified temperature in a food processing process such as canned food. As a specific method, a plate is affixed to a stage for conveying a product, temperature indicating ink is applied to the plate, and this is monitored by a camera or the like. Here, the temperature indicating ink is an ink whose color disappears when exposed to a specified temperature, and when the heat treatment is appropriately performed, the color of the temperature indicating ink applied to the plate disappears. Then, the state before and after the processing step of the temperature indicating ink is monitored by a camera or the like, and the disappearance state of the ink is recorded as individual product information.
JP 2002-131145 A

  According to the above method, it is possible to automate the information management of the machining process, and confirm whether the product has been heat-treated at an appropriate temperature by following the history of recorded information. can do. However, in the method described in Patent Document 1, if the specified temperature is achieved even in a short time, the temperature indicating ink may be lost. For this reason, it cannot be confirmed whether the product has been heat-treated at a specified time and at a specified temperature. Moreover, even if a plurality of temperature indicating inks having different reaction temperatures are applied, there is a problem that a detailed history of the processing state cannot be left.

Accordingly, an object of the present invention is to provide a process information management system capable of recording and managing detailed information on the machining state of a product that changes with time in a machining process.

A process information management system for achieving the above object includes a processing device provided in a product transport route as a circulation route, a sensor for acquiring product processing information in time series, and processing information acquired by the sensor. comprising: a first recording means for recording in association with the acquired time, a, in a system for managing process information products, repeatedly attached to a container containing a product or products to move the transport route is used, the individual and tags recorded serial number is rewritten to each cycle of the identification information and the patrol route of the said identification information recorded in the tag provided in inlet and outlet of the processing device and the reading means for reading said serial number, said reading means of the tag read by the first data to be recorded in association with the identification information and the serial number and the read time Writing rewriting and over scan, a second recording means for constructing a second database for recording information recorded on the first recording means, the serial number recorded on the tag to each cycle of the cyclic path And a calculation means having software for managing a database constructed in the second recording means, and a time associated with the identification information and the serial number of the tag recorded in the first database, The processing history of a specific product or a product stored in a container can be searched by checking the time associated with the processing information recorded in the second database via the calculation means. To do.

In the process information management system configured as described above, the comprising: a front of the reading unit provided in the inlet of the processing apparatus, the respective other reading means in a subsequent stage of the reading means comprising an outlet of the processing device, comprising the inlet The other reading means preceding the reading means writes the serial number to the tag, and the other reading means following the reading means provided at the outlet deletes the serial number recorded on the IC tag. A configuration is good. By adopting such a configuration, it is possible to rewrite information recorded in the tag, and the same tag (IC tag) can be repeatedly used in the transport route as a cyclic route, which is economical.

In the process information management system having the above-described configuration, another reading unit is provided before the reading unit provided at the entrance of the processing apparatus, and the other reading unit before the reading unit provided at the entrance is connected to the tag. The serial number may be written, and the reading means provided at the exit may be configured to read the identification information and serial number recorded in the tag and delete the serial number. Even in such a configuration, the information recorded in the tag can be rewritten, and the same tag (IC tag) can be repeatedly used in the transport route as a cyclic route, which is economical.

According to the process information management system as described above, individual data of the processing information and processing information acquisition time in the processing process (processing apparatus) and the process entry / exit time when the product enters and exits the processing apparatus are separately acquired. Then, the individual data are linked based on the time that is common data. For this reason, when searching for a history of processing information of a product, it is possible to know in detail according to a time series what the product has been processed in the processing step. In addition, since the processing information is recorded separately from the product entering and exiting the processing device, the processing information of the product itself remains as data even if the product cannot be detected entering or exiting the processing device. It becomes.

In addition, according to the process information management system of the above configuration, it is only necessary to add equipment etc. to acquire the time when the product enters and exits the processing apparatus based on equipment manufactured only for the acquisition of processing information . It is possible to make effective use of existing facilities. Therefore, it is possible to reduce the equipment cost for installing new equipment.

Hereinafter, an embodiment according to a process information management system of the present invention will be described with reference to the drawings. The following embodiments are a part of the embodiments according to the present invention, and the technical scope of the present invention is not limited to the following embodiments.

  First, an overview of the first embodiment according to the process information management system 10 of the present invention will be described with reference to the block diagram of FIG. The process information management system 10 according to the present embodiment reads an antenna 28 as a reading unit that reads a tag 30 with identification information (hereinafter referred to as an ID number), a sensor 54 that reads processing information in a processing step, and the antenna 28. And a computer 12 for managing information read by the sensor 54. In the present embodiment, the tag 30 and the antenna 28 serving as the reading unit serve as an entry / exit detection unit for a processing apparatus (processing step) described later.

  Examples of the tag 30 with the ID number include a bar code, a two-dimensional code, and an IC (Integrated Circuit) chip. In this embodiment, an IC chip is used. An RFID (Radio Frequency Identification) tag that is mounted and can read and write recorded information without contact by radio waves or electromagnetic waves will be described as an example. In addition, since a tag (not shown) generally has a memory (not shown) as a recording unit for recording information, a tag equipped with an IC is necessary by using a readable / writable RAM (Random Access Memory). There is an advantage that it is possible to write and read various information. In addition, as long as the RFID tag 30 can exchange information by radio waves, it can read and write data without contact, and is suitable for data exchange on a production line that involves transportation. is there.

  In the case of the present embodiment, the antenna 28 is an antenna (RFID antenna) that enables reading of information recorded in the RFID tag 30 and writing of information.

  Further, the sensor 54 that reads the processing information refers to various sensors such as temperature, humidity, odor, and pressure. In the present embodiment, the processing device 59 (see FIG. 2) will be described as a heating process, and therefore the sensor will be described as a temperature sensor.

  Further, the processing device 59 described in the present embodiment has, as first recording means, processing information (temperature information in the processing device) read by the sensor 54, and a time at which the processing information is acquired (read). Is connected to a data recorder 50 having a memory 52 for temporarily recording the. Then, the processing information and the time when the processing information is acquired are transmitted from the data recorder 50 to the computer 12.

  The computer 12 includes a hard disk 16 as second recording means for recording data transmitted from the RFID antenna 28 and the data recorder 50, and arithmetic means for executing various data input and output processes. 14 are provided. The hard disk 16 includes at least an RFID information database (first database: hereinafter referred to as RFID information DB) 20 for registering information on the RFID tag 30 acquired by the RFID antenna 28, processing information transmitted from the data recorder 50, and the like. Is a database management software for constructing a processing information database (second database: hereinafter referred to as a processing information DB) 22 for registering data, and for performing processing such as search and connection of data registered in the RFID information DB 20 and the processing information DB 22 18 (hereinafter referred to as DB management software) is recorded. The DB management software 18 is activated in response to an instruction by a signal from the calculation means 14.

In addition to the RFID antenna 28 and the data recorder 50, the computer 12 may be connected to an input / output means 26 for searching data. Here, the input / output means 26 includes a keyboard for inputting keywords by character input, a mouse for selecting symbols such as icons, and a monitor for enabling visual recognition of input / output information. Or projector.
Note that data input to the computer 12 and data output from the computer 12 are performed via an interface 24.

Hereinafter, a specific configuration of the process information management system 10 of the present embodiment will be described in detail with reference to FIG.
A production line to which the process information management system 10 of this embodiment is applied includes a transport route 58 for transporting products, and a basket 56 that accommodates a plurality of products (product groups) 40 and is transported on the transport route 58. And a processing device 59 that is provided on the transport route 58 and performs a processing step for processing the product 40. And in the production line of such a structure, the said sensor 54 is provided in the said processing apparatus 59, and it is set as the structure which can read the process information in a process.

  The conveyance route 58 is constituted by, for example, a belt conveyor, a roller conveyor, or other conveyance means, and may constitute a circulation route as shown in FIG. In the conveyance route 58 having such a configuration, the basket 56 that accommodates and conveys the product 40 circulates in the direction indicated by the white arrow 60. In the transport route 58 as described above, there are at least two places (four places in the present embodiment) of the RFID antennas 28 (four places in the present embodiment) through which the basket 56 passes from receiving the product to dispensing the product. 28A to 28D).

  The basket 56 includes at least one RFID tag 30 described above. The RFID tag 30 may be provided as long as it can be read / written by the RFID antenna 28 in the transport route 58.

  Although not shown in FIG. 1, in the process information management system 10 of the present embodiment, the function of reading information from the RFID tag 30 and the RFID tag 30 are connected between the RFID antenna 28 and the computer 12. A switching means (controller) 27 for switching between information writing functions is provided. With such a configuration, the RFID antenna 28 can read information related to the RFID tag 30 that passes through the RFID antenna 28 and write information to the RAM.

  In the process information management system 10 having the above-described configuration, the processing device 59 reads processing information (for example, heating temperature) by the sensor 54 and processes the processing information in the memory 52 (see FIG. 1) provided in the data recorder 50. The time when is read is recorded in time series.

  Further, in the transport route 58, information attached to the RFID tag 30 is read every time the basket 56 passes through the place where the RFID antenna 28 is disposed. The read information is registered in the RFID information DB 20 constructed on the hard disk 16 of the computer 12 together with the time when the information is read.

  Since the transport route 58 of the present embodiment is a circulation route, the basket 56 provided with the RFID tag 30 accommodates a different product group 40 for each lap and passes again through the place where the same RFID antenna 28 is disposed. It will be. For this reason, it is necessary to prevent the registration data from being confused when the ID number of the RFID tag 30 read by the RFID antenna 28 overlaps. Therefore, in the process information management system 10 according to the present embodiment, the RFID antenna 28A disposed at the product receiving position on the transport route 58 reads the ID number assigned to the RFID tag 30 and also has a unique number ( The identification information for each product (for example, serial number) is written in the RAM provided in the RFID tag 30. Further, in response to writing by the RFID antenna 28A on the product receiving side, the RFID antenna 28D disposed at the product payout position deletes the unique number written in the RAM and resets the data. . By adopting such a system, even if the basket 56 provided with the RFID tag 30 is circulated and reused, there is no possibility of confusion in managing the registered data.

In the process information management system 10 as described above, data registration / management is performed according to the procedure shown in FIG.
In the transport route 58, first, the product 40 is accommodated in the basket 56 having the RFID tag 30 at the receiving position of the product 40. In the basket 56 containing the product 40, the ID number of the RFID tag 30 is read by the RFID antenna 28A disposed at the product receiving position, and the serial number is written in the RAM. Then, the RFID antenna 28A that has read the ID number, the ID number of the read RFID tag 30, the serial number that has been written to the RAM, and the time at which the ID number has been read are stored in the RFID information DB 20 constructed in the hard disk 16 of the computer 12. It is registered as data (step 100). Thereby, the time when the product 40 is received by the transport route 58 can be grasped.

  Next, when the basket 56 containing the product 40 enters the processing step (processing device) 59, the RFID tag provided in the basket 56 is moved by the RFID antenna 28B disposed at the inlet of the processing device 59. The ID number assigned to the RFID tag and the serial number recorded in the RAM are read. Based on the read ID number and serial number, the serial number and ID number registered in the RFID information DB 20 are associated with the serial number and ID number, and the RFID antenna 28B that has read the ID number and serial number, and the ID number and the time at which the serial number was read are registered as data. (Step 110).

  Next, the ID number and serial number of the RFID tag 30 provided in the basket 56 that has passed through the processing device 59 through the processing step are read by the RFID antenna 28 </ b> C disposed at the outlet of the processing device 59. Then, from the read ID number and serial number, the RFID antenna 28C that reads the ID number and serial number, and the time when the ID number and serial number are read, are associated with the ID number and serial number registered in the RFID information DB 20. (Step 120).

  Then, the basket 56 that has passed through the processing device 59 is transported on the transport route 58 and passes in the vicinity of the RFID antenna 28 </ b> D disposed at the product delivery position. The basket 56 that has passed in the vicinity of the RFID antenna 28D reads the ID number and serial number of the RFID tag 30 by the RFID antenna 28D. The serial number written in the RAM is deleted from the RFID tag 30 whose ID number and serial number have been read by the RFID antenna 28D. The read ID number and serial number are associated with the ID number and serial number registered in the RFID information DB 20, and the read RFID antenna 28D and the time when the ID number and serial number were read are registered as data (step 130). ).

  Further, in the processing device 59 provided in the transport route 58, apart from the steps 100 to 130, the processing information (data) is read in time series by the sensor 54, and the time when the processing information is read. In addition, the data is recorded in the memory 52 provided in the data recorder 50. Then, the machining information recorded in the memory 52 and the time when the machining information is read are registered in the machining information DB 22 built in the hard disk 16 provided in the computer 12 (step). 140). In addition, the process from step 100 to step 130 and step 140 are steps executed in parallel.

  FIG. 4 shows data recorded in the databases 20 and 22 constructed in the hard disk 16 through the above steps. In FIG. 4, the table shown in FIG. 4A is registered in the RFID information DB 20, and the table shown in FIG. 4B is registered in the processing information DB 22.

  In the data recorded in both databases 20 and 22, the time at which the data was acquired is registered in time series for each specified location. Therefore, among the data registered in these databases, the time is common category data. For this reason, when searching the history of the processing information regarding the registered product 40, the processing state in the processing process of the product 40 is grasped by collating the times registered in both the databases 20 and 22. Can do. That is, the processing information registered in the processing information DB 22 corresponding to the interval between the process entrance passage time and the process exit passage time in the serial number (serial number) corresponding to the lot number of the product 40 registered in the RFID information DB 20 is read. By retrieving the time and reading the sensor value corresponding to the time, it is possible to retrieve the history of machining information in the machining process.

  For example, when searching for a processing history for a product with serial number 4 and lot number A004, a sensor read at a corresponding time between the process entrance passage time 3:10 and the process exit passage time 3:40 of the product. The value may be extracted from the processing information BD22. That is, in FIG. 4B, the portion surrounded by the broken line is the history of the processing information corresponding to the serial number 4 product.

  According to the process information management system 10 as described above, the history of the processing information of the product 40 can be registered in detail in time series, and can be read out as necessary. Further, since the process information is read separately (regardless of whether the product is actually processed) separately from the flow of the product 40 (flow of the RFID tag), an error occurs in reading the RFID tag 30 temporarily. Even then, the processing information itself when the corresponding product is processed is registered in the database as a history. Therefore, from the entry / exit time of the product processed before and after the product in which the reading error of the RFID tag 30 provided in the basket 56 occurs, the entry / exit time of the product having the reading error into / from the processing device 59 is calculated. By specifying, the history of the machining state can be estimated.

  In the process information management system 10 of the present embodiment, the product 40 that is accepted into the transport route 58 is assigned a lot number in units of the basket 56 that is accommodated. The lot number of the product 40 is read before the product receiving position by a lot number reading unit (not shown) and is registered in the RFID information DB 20. The lot number is registered by associating the lot number with the ID number of the RFID tag 30 read by the RFID antenna 28A immediately after reading the lot number. At this time, a serial number is recorded in the RAM of the RFID tag 30. Here, as a method of assigning a lot number in units of basket 56, information recorded using a bar code or a two-dimensional code is used even if a lot number written on a plate is pasted on basket 56. It may be a thing or information recorded on an IC tag. The lot number reading means may be a means corresponding to the lot number assignment method described above. For example, when attaching a lot number written on a plate to the basket 56, a camera or the like may be employed as the lot number reading means. Further, when information is recorded in a bar code or a two-dimensional code, a reading sensor may be used as the lot number reading means.

Next, with reference to FIG. 5, a second embodiment according to the process information management system of the present invention will be described.
Most of the configuration of the process information management system according to this embodiment is the same as that of the process information management system shown in the first embodiment. Therefore, the same constituent elements are denoted by the same reference numerals plus 100 and shown in FIG. 5, and detailed description thereof is omitted.

  The difference between the process information management system 110 according to the present embodiment and the process information management system 10 according to the first embodiment is that the number of RFID antennas arranged on the transport route and the processing performed by the RFID antennas are different. Only the difference. That is, in the present embodiment, the RFID antenna 28D (see FIG. 2) disposed at the product delivery position is eliminated, and the data recorded on the RFID tag 130 by the RFID antenna 128C disposed at the outlet of the processing device 159. It is configured to perform the reset.

  By adopting such a configuration, the number of RFID antennas 128 disposed on the transport route 158 can be reduced, and the process information management system can be configured at a lower cost than in the first embodiment. .

In the process information management system 110 of this embodiment, data registration / management is performed according to the procedure shown in FIG.
In the transport route 158, the product is first stored in the basket 156 provided with the RFID tag 130 at the product receiving position. The basket 156 containing the product can read the ID number of the RFID tag 130 provided by the RFID antenna 128A disposed at the product receiving position. The RFID tag 130 from which the ID number has been read is written with a serial number in a RAM serving as a recording unit. Then, the RFID antenna 128A that has read the ID number, the ID number of the read RFID tag 130, the serial number written in the RAM, and the time at which the ID number was read are stored in the RFID information DB built on the hard disk of the computer 112. Registered (step 200). Thereby, the time when the product is received by the transport route 158 can be grasped.

  When the basket 156 containing the product enters the processing step (processing apparatus) 159, the ID number attached to the RFID tag 130 provided in the basket 156 by the RFID antenna 128 </ b> B disposed at the entrance of the processing apparatus 159. The serial number recorded in the RAM is read. An RFID antenna that reads the ID number and serial number in association with the ID number and serial number registered in the RFID information DB based on the read ID number and serial number, and the time when the ID number and serial number are read are the RFID information DB. (Step 210).

  Next, the ID number and serial number of the RFID tag 130 provided in the basket 156 that has passed through the processing device 159 after the processing step are read by the RFID antenna 128C provided at the outlet of the processing device 159. In the RFID tag 130 from which the ID number and serial number are read, the serial number written in the RAM is deleted. Then, from the read ID number and serial number, the RFID antenna 128C that reads the ID number and serial number of the RFID tag 130 in association with the ID number and serial number registered in the RFID information DB, and the time when the ID number and serial number are read Are registered in the RFID information DB (step 220).

  In addition, in the machining process, apart from the steps 200 to 220, machining information (data) is read in time series by the sensor 154, and the data recorder 150 is provided together with the time when the machining information is read. Recorded in memory. Then, the processing information recorded in the memory and the time at which the processing information is read are registered in the processing information DB built on the hard disk provided in the computer 112 (step 230). . In addition, the process from step 200 to step 220 and step 230 are steps executed in parallel.

The data registered by the procedure as described above is in the state where there is no data related to the payout time in the RFID information DB shown in FIG. 4 (A). This can be performed in the same procedure as the process information management system 10 of the first embodiment.
About another structure, an effect | action, and an effect, it is the same as that of the process information management system 10 shown in 1st Embodiment.

Next, a third embodiment according to the process information management system of the present invention will be described with reference to FIG.
The basic configuration of the process information management system of this embodiment is the same as that of the first embodiment. Therefore, the same constituent elements are denoted by the same reference numerals with 200 added thereto and shown in FIG. 7, and detailed description thereof will be omitted.

  The process information management system 210 of this embodiment is different from the process information management system 10 of the first embodiment in that a plurality of processing devices 259 (two in this embodiment) are provided on the transport route 258. In this embodiment, after receiving a product at the product receiving position and passing through the RFID antenna 228A arranged at the product receiving position, the transport route 258 is branched into two systems. Then, the processing devices 259A and 259B are provided in each of the branched routes of the respective systems to shorten the processing time in the processing process. The basket 256 that has passed through the processing devices 259A and 259B of the respective branch systems passes through the RFID antennas 228C and 228E disposed at the outlets of the processing devices 259A and 259B, and converges again into one system. The basket 256 focused on one system passes the RFID antenna 228F disposed at the product delivery position, delivers the product, and is then transported to the product receiving place on the return route. In addition, RFID antennas 228B and 228D are provided at the entrances of the processing devices 259A and 259B of each system, respectively, and the time of entering and exiting the processing device 259 can be acquired as in the first and second embodiments. It is possible.

  In the process information management system 210 of this embodiment, when the basket 256 containing the product is branched into two systems, basically, the basket is alternately branched. Further, since the process information management system 210 of this embodiment includes the data recorder 250 (250A, 250B) for each processing device 259, the processing information DB constructed on the hard disk of the computer 212 also registers the processing information of the processing device 259A. Database A to be processed and database B to register the processing information of the processing device 259B (see FIG. 8B).

  Therefore, the data of the database constructed on the hard disk of the computer 212 of this embodiment is as shown in FIG. As can be seen from FIG. 8, there are two processing information DBs shown in FIG. 8B for one RFID information DB shown in FIG. 8A. Each processing information DB is registered independently. Yes.

  According to the process information management system 210 of the present embodiment as described above, the same effects as those of the process information management system 10 according to the first embodiment can be obtained. Further, by providing a branch system on the transport route 258 and disposing the processing devices 259 on the branch system, the throughput is improved.

  In each of the above embodiments, the reason why the unique number (serial number) is written in the RAM provided in the RFID tag is to prevent the registration data from being confused due to duplication of read information (for example, ID number). Therefore, if the lot number assigned to each basket is a unique number, and the combination of the ID number assigned to the RFID tag and the lot number is a unique number, a serial number is written separately. There is no need to provide a process.

  In any of the embodiments, the serial number is written at the product receiving position and the serial number is reset at the product payout position. However, for example, the serial number may be incremented by an RFID antenna disposed at a product receiving position.

  Although not shown in the embodiment, a sensor (for example, an infrared sensor) that can detect the passage of an object may be installed in the front stage or the vicinity of the RFID antenna. With such a configuration, if the RFID tag is not read by the RFID antenna even though the infrared sensor detects the passage of an object, it means that an RFID tag reading error has occurred. I understand. Therefore, the product line can be corrected by temporarily stopping the production line.

  In the above embodiment, the information recorded in the data recorder is recorded in the processing information DB built in the hard disk provided in the computer, and the recorded data can be searched by collating the time data. However, it is not always necessary to re-register information recorded in the data recorder in the hard disk. In other words, the processing information DB may be constructed in the memory provided in the data recorder for the purpose of long-term data storage. Then, when searching for the processing history, the DB management software may read the information directly from the processing information DB constructed in the data recorder.

  Further, in the embodiment, it is described that an RFID tag and an RFID antenna that reads the RFID tag are used as means for detecting that a basket containing a product enters and exits the processing apparatus. However, the effect of the process information management method and system of the present invention can be obtained even if the means for detecting that the basket enters and leaves the processing apparatus is changed to another one. Examples of means for detecting the entry / exit of the basket processing apparatus include a means for attaching a barcode or a two-dimensional code to the basket and reading this by a sensor, or a means for reading a plate on which identification information is written by a camera or the like. Can do. However, since two-dimensional codes and bar codes cannot write new information, if the transport route is a circulation route, a new one must be attached to the basket every turn.

  In any of the above embodiments, the basket containing the product is provided with an RFID tag, and the RFID antenna is configured to read the RFID tag provided in the basket. However, such a configuration is one of means for improving the efficiency of information acquisition in a production line that processes a plurality of products simultaneously. Therefore, it goes without saying that an RFID tag may be provided for each product. In addition, when it is set as the structure provided with the RFID tag for every product, the operation | work of providing an RFID tag in the receiving position of a product and removing an RFID tag in the delivery position of a product is needed.

  In addition, the process information management system of the above-described embodiment may be configured to include a sub computer in consideration of a case where a transmission path of data from an RFID antenna, a data recorder, or the like to the computer is cut off or in consideration of computer maintenance. . The sub computer may be a portable handy terminal. By adopting such a configuration, there is no leakage of recording data. In addition, it is not necessary to stop the production line due to a malfunction of the computer.

  In the said embodiment, the process information management system and method of this invention were demonstrated for the production line in a food processing factory. However, the process information management system and method of the present invention can also be applied to other industrial fields having processing steps. For example, it can be applied to a production line of a metal processing factory that requires heat treatment.

It is a block diagram which shows the structure of the process information management system of this invention. It is the figure shown in detail about 1st Embodiment of the process information management system of this invention. It is the flowchart which showed the process information management method about 1st Embodiment. It is the figure which showed the example of the database constructed | assembled in the computer of the process management system which concerns on 1st Embodiment, and the data registered. It is the figure shown in detail about 2nd Embodiment of the process information management system of this invention. It is the flowchart which showed the process information management method about 2nd Embodiment. It is the figure shown in detail about 3rd Embodiment of the process information management system of this invention. It is the figure which showed the example of the database constructed | assembled in the computer of the process management system which concerns on 3rd Embodiment, and the data registered.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ......... Process information management system, 12 ......... Computer, 14 ......... Calculation means, 16 ......... Hard disk (second recording means), 18 ......... Database management software, 20 ......... RFID information database , 22 ......... Processing information database, 27 ......... Switching means (controller), 28 (28A to 28D) ......... RFID antenna, 30 ......... RFID tag, 40 ......... Product (product group), 50 ... ... Data recorder, 52 ... Memory, 54 ... Sensor, 56 ... Basket, 58 ... Transfer route, 59 ... Processing device.

Claims (3)

A first recording that records, in association with a sensor that acquires processing information of a product in time series, and an acquisition time of processing information acquired by the sensor, on a processing device that is provided on a product conveyance route that is a traveling route. A system for managing process information of products,
A tag that records the identification number and the serial number that is rewritten for each round of the circulation route , repeatedly used by being attached to a product that moves the conveyance route or a container that contains the product,
A reading means for reading the serial number and the identification information recorded in the tag provided in inlet and outlet of the processing device,
Of the tag read by the reading means, a first database for recording in association with said identification information and the serial number and the read time, and a second database for recording information recorded on the first recording means A second recording means to be constructed;
Writing means for rewriting the serial number recorded in the tag for each round of the circulation path;
Computing means having software for managing a database constructed in the second recording means,
The time associated with the identification information and the serial number of the tag recorded in the first database and the time associated with the processing information recorded in the second database are collated through the calculation means. Thus, a process information management system characterized in that a processing history of a specific product or a product stored in a container can be searched. Wherein the front of the reading unit provided in the inlet of the processing device, comprising a respective other reading means in a subsequent stage of the reading means comprising an outlet of the processing device, another reading means of the preceding stage of said reading means provided in said inlet said writes the serial number of the tag, the process of claim 1 subsequent other reading means of said reading means provided in said outlet, characterized in that the deletion of the serial number recorded in the IC tag Information management system. Another reading means is provided in front of the reading means provided at the inlet of the processing apparatus, and the other reading means preceding the reading means provided in the inlet writes the serial number to the tag and is provided at the outlet. 2. The process information management system according to claim 1, wherein the reading unit reads the identification information and the serial number recorded in the tag and deletes the serial number.

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