JP4377286B2 - Delivery instruction system and delivery instruction method - Google Patents

Description

  The present invention is the delivery that is delivered together with a part and that is removed from the part by consumption of the part by using a delivery instruction medium that stores part information about the part and supplier information about a supplier who delivered the part. The present invention relates to a delivery instruction system and a delivery instruction method for instructing delivery of the parts based on information on an instruction medium.

  Conventionally, in order to improve the efficiency of product production management in factories, a “kanban system” has been proposed as a part delivery system (see Patent Document 1). In this Kanban system, the delivery of parts is instructed on the assumption that the consumed parts are consumed again. Specifically, in the kanban system, a kanban in which part information related to this part and supplier information related to a supplier who delivered the part are recorded by a barcode or the like is delivered together with the part. In this case, the parts or the parts box are delivered to the production factory in a state where one piece of the kanban corresponds to one part box in which the parts or parts are boxed. The kanban is removed from the part or the part box by the consumption of the part or the part in the part box. The detached kanban removed from this part is collected, and the information recorded on the barcode of the detached kanban is read by a predetermined reader. Next, a delivery instruction created based on the information read by the reader is distributed to each supplier, and each supplier delivers a part or a parts box to the production plant according to this delivery instruction.

  By procuring parts using such a “kanban system”, it is possible to prevent parts from being missing and to save extra inventory space and to procure parts efficiently. In particular, in a production factory for products that are produced using a large number of parts, it is possible to improve the efficiency of parts procurement.

JP-A-8-147384

  By the way, in the conventional kanban system, either a kanban that can be used a plurality of times or a kanban that can be used only once is used. When a Kanban that can be used multiple times is used, after the information on the out-of-use kanban is read by a predetermined reader, the out-of-place kanban is sorted by the specified sorting device for each supplier and is sent to each supplier. Will be returned. The supplier attaches the returned kanban board to a part or a part box corresponding to the part information recorded by the kanban board and delivers it again to the production factory. In addition, when using a Kanban that can be used only once, based on the delivery instruction sheet, the paper with the parts information and supplier information printed on it is attached to the relevant part or parts box, and the production factory Delivered to. Then, after the information of the detachment kanban removed due to the consumption of the parts is read, the detachment kanban is discarded.

  However, a sorting apparatus required when using a Kanban that can be used multiple times needs to have a sorting shelf corresponding to each supplier, and requires a complicated and large apparatus configuration. For this reason, there has been a problem that the configuration of the parts delivery system becomes complicated, and the operation cost of the system cannot be reduced. In addition, when a Kanban that can be used only once is used, the extra Kanban Kan where the information is read by the reader is discarded, which necessitates a disposal cost and a large consumption of paper resources. There was a problem that the cost could not be reduced. Furthermore, both when using a Kanban that can be used multiple times and when using a Kanban that can be used only once, it is necessary to read out the Kanban one by one when reading the information of the out Kanban, so a long reading time is required. Necessary and quick system operation could not be achieved.

  The present invention has been made in view of the above-described drawbacks of the prior art, and an object thereof is to provide a delivery instruction system and a delivery instruction method that have a simple configuration and are capable of promptly instructing delivery.

  In order to solve the above-described problems and achieve the object, a delivery instruction system according to the present invention is delivered together with a part and stores part information related to the part and supplier information related to a supplier who delivered the part. Information on the delivery instruction medium removed from the part in a delivery instruction system for instructing delivery of the part based on information on the delivery instruction medium removed from the part by consumption of the part using the instruction medium Reordering the information of each delivery instruction medium read by the reader for each supplier information, totaling the quantity of information having the same part information for each part information to obtain quantity information, For each supplier information, delivery instruction information including the parts information and the quantity information corresponding to the parts information is sent to each supplier via the network. A transmission processing device to be transmitted to each supplier, the delivery instruction information transmitted from the transmission processing device is received for each reception processing device to receive the delivery instruction information via a network, And a writing device for writing information to the delivery instruction medium based on the delivery instruction information received by the reception processing device.

  Further, in the delivery instruction system according to the present invention, at least the parts information and the supplier information are displayed on the surface of the delivery instruction medium, provided for each reception processing device, and received by the reception device. The apparatus further comprises a surface rewriting device for newly rewriting the component information and the supplier information displayed on the surface of the delivery instruction medium based on the delivery instruction information.

  In the delivery instruction system according to the present invention, the delivery instruction medium is a non-contact information medium that transmits and receives information without contact, and the reading device reads and writes the information of the delivery instruction medium without contact. The apparatus writes information to the delivery instruction medium in a non-contact manner.

  The delivery instruction system according to the present invention is characterized in that the reading device reads information on the delivery instruction medium and erases the read information out of information stored in the delivery instruction medium.

  The delivery instruction system according to the present invention is characterized in that the reader reads information of a plurality of delivery instruction media at a time.

  Also, in the delivery instruction system according to the present invention, the delivery instruction medium is formed of a conductive wire and functions as an antenna for transmitting and receiving radio waves of a predetermined frequency, a capacitor that forms a resonance circuit with the coil, and the reading device And a control circuit for controlling information transmitted / received to / from the writing device, wherein at least a part of the conducting wire is cut off in the coil.

  Further, in the delivery instruction system according to the present invention, on the surface of the delivery instruction medium, in addition to the part information and the supplier information, the encoded part information and the encoded supplier information are provided. And the reading device optically reads the encoded part information and the encoded supplier information in the delivery instruction medium, and the surface rewriting device reads the surface of the delivery instruction medium. In addition to the displayed part information and the supplier information, the encoded part information and the encoded supplier information displayed on the surface of the delivery instruction medium are newly rewritten. And

  In addition, the delivery instruction method according to the present invention includes a delivery instruction medium that is delivered together with a part and stores part information relating to the part and supplier information relating to a supplier that delivered the part. In a delivery instruction method for instructing delivery of the part based on information of the delivery instruction medium removed from the part, a reading step of reading the information of the delivery information medium removed from the part, and a reading in the reading step The sorting step of rearranging the information of each delivery instruction medium for each supplier information, obtaining the quantity information by totaling the quantity of information having the same part information for each part information, and for each supplier information, A transmission processing step for transmitting delivery instruction information including the part information and the quantity information corresponding to the part information over a network. Receiving the delivery instruction information transmitted in the transmission processing step via a network, and on the delivery instruction medium based on the delivery instruction information received in the reception processing step And a writing step for writing information.

  In the delivery instruction method according to the present invention, at least the part information and the supplier information are newly rewritten on the surface of the delivery instruction medium based on the delivery instruction information received in the reception processing step. The method further includes a surface rewriting step.

  The delivery instruction method according to the present invention is characterized in that the reading step reads information of the delivery instruction medium and erases the read information out of information stored in the delivery instruction medium.

  In the delivery instruction method according to the present invention, the reading step reads information of a plurality of the delivery instruction media at a time.

  According to the delivery instruction system according to the present invention, the information read from the removed delivery instruction medium is sorted for each supplier, and the quantity information including the same part information is totaled for each part information to obtain the quantity information. It is necessary to use different delivery instruction media for each supplier by providing a transmission processing device that sends delivery instruction information including parts information and supplier information to each supplier via the network for each supplier information. Therefore, it is possible to adopt a configuration in which the sorting device that has been conventionally required is deleted. For this reason, according to the delivery instruction system according to the present invention, it is possible to realize a delivery instruction system having a simple configuration and to promptly issue delivery instructions to each supplier. As a result, according to the delivery instruction system of the present invention, it is possible to efficiently procure parts in a product production factory.

  In addition, according to the delivery instruction method according to the present invention, it is possible to issue a delivery instruction by a simple method. For this reason, according to the delivery instruction | indication method concerning this invention, it becomes possible to perform the parts procurement in the production factory of a product efficiently.

  A delivery instruction system according to an embodiment of the present invention will be described below with reference to the drawings. The delivery instruction system according to the embodiment of the present invention uses a delivery instruction medium that is delivered together with a part and records part information about the part and supplier information about a supplier who has delivered the part. The delivery instruction of the part is performed based on the information of the delivery instruction medium removed from the part. Note that the present invention is not limited to the embodiments. In the description of the drawings, the same parts are denoted by the same reference numerals.

(Embodiment 1)
First, a delivery instruction system according to the first embodiment will be described. The delivery instruction system according to the first embodiment uses a non-contact information medium that sends and receives information without contact as a delivery instruction medium, and reads the information of the kanban removed from the part due to the consumption of the part without contact. The delivery instruction information created based on the read information is transmitted for each supplier. FIG. 1 is a block diagram illustrating a schematic configuration of a delivery instruction system according to the first embodiment. FIG. 1 schematically shows the physical configuration of the parts and the kanban as well as the schematic configuration of the delivery instruction system. Moreover, FIG. 1 illustrates the case where the suppliers who supply parts to a production factory are A company and B company. FIG. 2 is a diagram showing an example of a plan view of a kanban used in the first embodiment, and FIG. 3 is a block diagram showing a schematic configuration of the kanban shown in FIG.

  As shown in FIG. 1, the delivery instruction system according to the first embodiment includes a reading device 30, a communication terminal 40, communication terminals 60A and 60B, writing devices 70A and 70B, and surface rewriting devices 80A and 80B. Is provided. The reading device 30 and the communication terminal 40 are provided in the production factory where the parts are delivered. The communication terminals 60A and 60B, the writing devices 70A and 70B, and the surface rewriting devices 80A and 80B are supplied by the supplier A company and delivered. It is provided for each company B. That is, the communication terminal 60A, the writing device 70A, and the surface rewriting device 80A are provided on the company A side, and the communication terminal 60B, the writing device 70B, and the surface rewriting device 80B are provided on the company B side. In addition, the communication terminal 40 and the communication terminals 60 </ b> A and 60 </ b> B transmit and receive information via the network 50. The part 20 shown in FIG. 1 indicates a single part or a container in which a plurality of parts are accommodated, and means a delivery unit of parts delivered from a supplier to a production factory. One kanban corresponds to the part 20 which is the delivery unit.

  As shown in FIG. 2, the kanban 10 has, on its surface, part information on parts delivered together with the kanban 10 such as the part number of the parts, supplier information on the supplier who delivered the parts, and the production process in which the parts are consumed in the production factory. The information regarding the order, the information regarding the orderer who ordered the part, and the like are written in visually recognizable letters and numbers. In addition, the surface of the kanban 10 is provided with a material whose display color is changed by performing predetermined heat treatment, temperature rise treatment, and temperature fall treatment.

  In addition, as shown in FIG. 3, the kanban 10 is formed of a conductive wire, and functions as an antenna that transmits and receives radio waves of a predetermined frequency, a capacitor 14 that forms a resonance circuit with the coil 12, and the kanban 10 transmits and receives. An IC chip 15 for controlling information is provided, and a cutting portion 13 is provided in which at least a part of a conducting wire forming the coil 12 is cut. The coil 12 generates an induced current when receiving a radio wave having a predetermined frequency, and supplies an electromotive force to the IC chip 15. The IC chip 15 transmits a carrier wave corresponding to the transmission information to the coil 12 and converts the received radio wave into corresponding information, and the transmission information and the information stored in the memory 15c corresponding to the received radio wave. A control unit 15b for controlling and a memory 15c for storing various information such as parts information and delivery company information are provided. The kanban 10 can transmit and receive information when the kanbans 10 are arranged in the vicinity.

  The reading device 30 reads information stored in the kanban 10 in a non-contact manner via radio waves having a predetermined frequency. The reading device 30 reads the information of the kanban 10 and erases the read information out of the information stored in the kanban 10. Further, the reading device 30 reads information of a plurality of Kanbans 10 at a time. Hereinafter, the kanban 10 before the information is erased by the reader 30 will be referred to as a kanban 10a, and the kanban 10 until the information is erased and newly written by the reader 30 will be referred to as a kanban 10b. The communication terminal 40 sorts the information of the kanban 10a read by the reader 30 for each supplier, calculates the quantity information by summing the quantity of information having the same part information for each part information, and for each supplier, Delivery instruction information including part information and quantity information is transmitted to each supplier via the network 50.

  The communication terminals 60A and 60B receive the delivery instruction information transmitted from the communication terminal 40. Here, the delivery instruction information received by the communication terminal 60A is referred to as delivery instruction information 43A, and the delivery instruction information 43B received by the communication terminal 60B. In addition to receiving information, communication terminals 60A and 60B process the received information and transmit processing control information to other devices that are electrically connected. The writing device 70A is electrically connected to the communication terminal 60A, and writes information to the kanban 10b in a non-contact manner via radio waves of a predetermined frequency based on the delivery instruction information 43A received by the communication terminal 60A. . The writing device 70B is electrically connected to the communication terminal 60B and, similar to the writing device 70B, based on the delivery instruction information 43B received by the communication terminal 60A, information is sent to the Kanban 10b via radio waves of a predetermined frequency. Write. As described above, the writing devices 70A and 70B are provided for each of the communication terminals 60A and 60B, and write information to the kanban 10b based on the delivery instruction information received by the communication terminal 60. The surface rewriting device 80A is electrically connected to the communication terminal 60A and newly rewrites the parts information and the supplier information displayed on the surface of the kanban 10b based on the delivery instruction information 43A received by the communication terminal 60A. . The surface rewriting apparatus 80A erases information written on the surface of the kanban 10b and writes new information by applying predetermined heat treatment, temperature increase processing, and temperature decrease processing to the kanban 10b, and the surface of the kanban 10b. Rewrite the information described in. The surface rewriting device 80B has the same function as the surface rewriting device 80A. As described above, the surface rewriting devices 80A and 80B are provided for each of the communication terminals 60A and B, and the parts information and supplier information displayed on the surface of the kanban 10 based on the delivery instruction information received by the communication terminal 60. And a new rewrite.

  Next, with reference to FIG. 1 and FIG. 4, the delivery instruction processing procedure performed based on the information of the kanban 10 removed from the part 20 due to the consumption of the part 20 in the delivery instruction system shown in FIG. . FIG. 4 is a flowchart of a delivery instruction processing procedure performed based on the information of the kanban 10 removed from the part 20 due to the consumption of the part 20 in the delivery instruction system according to the first embodiment.

  First, as shown in FIGS. 1 and 4, the reading device 30 performs a kanban information reading process of reading information on the kanban 10 a removed due to consumption of the component 20 (step S <b> 102). In this case, the reading device 30 erases the read information out of the information stored in the kanban 10a. Further, the reading device 30 reads information of a plurality of Kanbans 10a at a time. The reading device 30 outputs the read information of the kanban 10 a to the communication terminal 40. As shown in FIG. 1, the kanban 10b that has been subjected to the kanban information reading process is collected and distributed to supplier A and supplier B, respectively. And the kanban 10b distributed to each supplier is subjected to each process in the kanban information writing process and the kanban surface rewriting process described later.

  The communication terminal 40 performs a delivery instruction information creation process for creating delivery instruction information created for each supplier information based on the read information (step S104). The delivery instruction information includes parts information and quantity information corresponding to the parts information. The communication terminal 40 performs a delivery instruction information transmission process for transmitting the created delivery instruction information to each supplier side corresponding to the supplier information in each delivery instruction information via the network 50 (step S106).

  Communication terminals 60A and 60B perform delivery instruction information reception processing for receiving delivery instruction information transmitted from communication terminal 40 via network 50 (step S108). Then, the writing devices 70A and 70B perform information writing processing for writing information in a non-contact manner to the Kanban 10b distributed to each supplier based on the delivery instruction information received by the communication terminals 60A and 60B ( Step S110). Further, the surface rewriting devices 80A and 80B erase the information written on the surface of the kanban 10b based on the delivery instruction information received by the communication terminals 60A and 60B, and newly write the information, thereby kanban 10b. A kanban surface rewriting process is performed to rewrite information written on the surface (step S112). In this case, the Kanban 10b is written and rewritten with at least part information relating to a part that has been instructed to be delivered and supplier information relating to a supplier instructed to deliver this part. The Kanban information writing process and the Kanban information rewriting process performed on the supplier side are delivered to the production plant together with the parts 20 corresponding to the written and rewritten parts information, and are consumed by consumption of these parts 20. In this case, the above-described kanban information reading process is performed.

  Next, the delivery instruction information creation process shown in FIG. 4 will be described. FIG. 5 is a flowchart showing a processing procedure of the delivery instruction information creation process shown in FIG. As shown in FIG. 5, the communication terminal 40 receives the reading information of the kanban 10a read by the reading device 30 (step S122). Since the reading device 30 reads information of a plurality of Kanbans 10a at a time, the reading information received by the communication terminal 40 includes a plurality of parts information and supplier information. The communication terminal 40 sorts the received read information for each supplier information (step S124), and totals the quantity of information having the same part information for each part information (step S126). The quantity information corresponding to each part information is obtained. Then, the communication terminal 40 creates delivery instruction information including parts information and quantity information corresponding to the parts information for each supplier information (step S128).

  Next, the delivery instruction information creation process shown in FIG. 5 will be specifically described. FIG. 6 is a diagram illustrating an example of read information received by the communication terminal 40. FIG. 7 is a diagram illustrating an example of rearrangement information in which the communication terminal 40 performs rearrangement. FIG. 8 is a diagram illustrating an example of total information collected by the communication terminal 40. FIG. 9 is a diagram showing an example of delivery instruction information created by the communication terminal 40.

  As shown in FIG. 6, the read information 31 received by the communication terminal 40 includes information on a plurality of kanbans 10 a, and the supplier information that has delivered the parts 20 and the parts information related to the parts are associated with each other. . In the read information 31, for example, the parts information “154” is associated with the supplier information “B” at the top. In the delivery instruction system shown in FIG. 1, a delivery instruction for parts is given to a supplier on the assumption that consumed parts are consumed again. For this reason, in the delivery instruction system shown in FIG. 1, when the part “154” delivered by the supplier B is consumed, the part “154” is based on the information of the Kanban 10a delivered together with this part. Will be instructed to the supplier “B” company.

  The communication terminal 40 rearranges the parts information of the read information 31 for each supplier information “A” and “B” (step S124), and creates rearrangement information 41 as shown in FIG. And the communication apparatus 40 totals the quantity of the information which is the same component information based on the produced rearrangement information 41 (step S126), and calculates | requires quantity information for every component information. As a result, as shown in FIG. 8, the communication terminal 40 creates total information 42 in which the part information and the quantity information corresponding to the part information are associated for each supplier information. For example, in the supplier information “A”, when there is 12 information indicating the part information “154”, the quantity information “12” corresponding to the part information “154” is associated. Further, in the supplier information “A”, when there is 8 information indicating the part information “162”, the quantity information “8” corresponding to the part information “162” is associated. Then, as shown in FIG. 9, for example, the delivery instruction information 43A transmitted to the communication terminal 60A and the delivery instruction information 43B transmitted to the communication terminal 60B are created based on the created total information 42. (Step S128). Then, the communication terminal 40 transmits the created delivery instruction information 43A and 43B to the supplier side via the network 50 (step S106). On the supplier side, the kanban information writing process (step S110) and the kanban surface rewriting process (step S112) are performed on the kanban 10b based on the delivery instruction information 43A and 43B received by the communication terminals 60A and 60B. For example, on the side of the supplier A, the kanban information writing process and the kanban surface rewriting process are performed on the basis of the delivery instruction information 43A, thereby creating “12” kanbans 10a as the parts information “154” and the supplier information “A”. The kanban 10a is delivered to the production plant together with the part 20 corresponding to the part information “154”.

  As described above, in the first embodiment, the communication terminal 40 rearranges the read information read by the reading device 30 for each supplier, totals the quantity for each part information, and creates the delivery instruction information. On the basis of this delivery instruction information, information on the Kanban 10b is newly written and rewritten on the supplier side. Even if Kanban 10b has been written with parts information and supplier information different from this delivery instruction information at the time of the previous delivery, the parts information and supplier information are based on the delivery instruction information. Newly written and rewritten. In other words, there is no need to use Kanban for each supplier. For this reason, in the delivery system according to the first embodiment, it is not necessary to perform a sorting process for each supplier on the Kanban 10b whose information has been read on the production factory side. Therefore, in this Embodiment 1, it can be set as the structure which deleted the sorting apparatus which sorts kanban for every supplier. As a result, according to the delivery instruction system according to the first embodiment, a delivery instruction system having a simple configuration can be realized, and the cost required for the operation of the delivery instruction system can be reduced. Become.

  Moreover, in this Embodiment 1, the kanban 10 which transmits / receives information without contact is used, and this kanban 10 can be used any number of times as long as each component is not damaged. For this reason, the kanban 10 can be used a plurality of times, and compared with a conventional delivery instruction system using a paper kanban that can be used only once, the kanban disposal cost is reduced and the consumption of paper resources is reduced. Can be achieved.

  In addition, in the delivery instruction system according to the first embodiment, since information necessary for the kanban 10b is rewritten on each supplier side, regardless of the situation at the time of the previous delivery, the kanban 10b after the information reading is used as any supplier. Can also be distributed. For this reason, distribution of the kanban 10b can be performed flexibly irrespective of the information displayed on the surface of the kanban 10b.

  Here, the structure of the kanban 10 will be described in detail. As shown in Japanese Patent Application No. 2003-285884 filed by the present applicant, the kanban 10 shown in FIG. 3 has a plurality of kanbans 10 formed by providing a cutting portion 13 in which the conducting wire forming the coil 12 is partially cut. Even in the overlapped state, it is possible to accurately communicate with the reading device 30 or the writing devices 70A and 70B.

（１）式に示すように、コイル１２とコンデンサ１４とが形成する共振回路の共振周波数ｆｒは、コイル１２のインダクタンスＬの値とコンデンサ１４の容量Ｃの値によって定められる。ここで、かんばん１０においては、導線が切断されていない場合と比較して、コイル１２のインダクタンスＬの値が小さい構成となっているため、共振周波数ｆｒが読取り装置３０または書込み装置７０Ａ，７０Ｂにおいて送信される電波の周波数ｆｃと一致しない。すなわち、コイル１２は、かんばん１０が単体で配置された場合に、コンデンサ１４と形成する共振周波数ｆｒを、読取り装置３０または書込み装置７０Ａ，７０Ｂにおいて送信される電波の周波数ｆｃよりも高くするインダクタンスＬを有する。このため、かんばん１０単体では読取り装置３０または書込み装置７０Ａ，７０Ｂとの間で通信を行なわない。これに対し、近接するかんばん１０の数量が増加するにともない、各々のかんばん１０におけるコイル１２のインダクタンスＬが増加する。このコイル１２は、かんばん１０が複数近傍に配置された場合に、コンデンサ１４と形成する共振回路の共振周波数ｆｒを、読取り装置３０または書込み装置７０Ａ，７０Ｂにおいて送信される電波の周波数ｆｃに等しくするインダクタンスＬを発生する。このため、かんばん１０が所定数量以上近接した場合、各かんばん１０における共振回路の共振周波数ｆｒが周波数ｆｃと一致し、かんばん１０は、読取り装置３０または書込み装置７０Ａ，７０Ｂとの間で情報の送受信を行なうことができる。 As shown in FIG. 10, the cutting portion 13 is provided by cutting a part of the coil 12 around which a conducting wire is wound a predetermined number of times, for example, a length of 10 mm. Here, the following equation (1) shows a relational expression between the resonance frequency fr of the resonance circuit formed by the coil 12 and the capacitor 14, the inductance L of the coil 12, and the capacitance C of the capacitor 14.

As shown in the equation (1), the resonance frequency fr of the resonance circuit formed by the coil 12 and the capacitor 14 is determined by the value of the inductance L of the coil 12 and the value of the capacitance C of the capacitor 14. Here, in the kanban 10, since the value of the inductance L of the coil 12 is small compared to the case where the conducting wire is not cut, the resonance frequency fr is the reading device 30 or the writing devices 70A and 70B. It does not match the frequency fc of the transmitted radio wave. That is, the coil 12 has an inductance L that makes the resonance frequency fr formed with the capacitor 14 higher than the frequency fc of the radio wave transmitted by the reading device 30 or the writing devices 70A and 70B when the kanban 10 is disposed alone. Have For this reason, the Kanban 10 alone does not communicate with the reading device 30 or the writing devices 70A and 70B. In contrast, as the number of adjacent kanbans 10 increases, the inductance L of the coil 12 in each kanban 10 increases. This coil 12 makes the resonance frequency fr of the resonance circuit formed with the capacitor 14 equal to the frequency fc of the radio wave transmitted in the reading device 30 or the writing devices 70A and 70B when the kanban 10 is arranged in the vicinity. An inductance L is generated. Therefore, when the kanbans 10 are close to each other by a predetermined number or more, the resonance frequency fr of the resonance circuit in each kanban 10 coincides with the frequency fc, and the kanban 10 transmits / receives information to / from the reading device 30 or the writing devices 70A and 70B. Can be performed.

  For example, when kanbans without cutting portions 13 are arranged at intervals of 1 mm, communication becomes impossible when four or more kanbans overlap as shown by a straight line lc in FIG. 11 and are arranged at intervals of 3 mm. In this case, as indicated by a straight line ld in FIG. 11, communication becomes impossible when 11 or more kanbans overlap. On the other hand, when the kanban 10 provided with the cutting part 13 is close, as shown by the straight line la, communication is possible when eight or more kanbans 10 overlap when the kanbans 10 are arranged at intervals of 1 mm. Yes, as shown by the straight line lb, when the kanbans 10 are arranged at intervals of 3 mm, communication is possible when 15 or more kanbans 10 overlap.

  For this reason, in the delivery instruction system according to the first embodiment, by using the kanban 10 provided with the cutting unit 13, the reading device 30 causes the information of a plurality of kanbans 10 in the kanban information reading process (step S102). Can be read accurately at a time. As a result, the delivery instruction system according to the first embodiment shortens the processing time required to read the kanban information as compared with the conventional delivery instruction system that had to read the kanban information one by one. Can do. Therefore, according to the delivery instruction system according to the first embodiment, compared with the delivery instruction system according to the prior art, it is possible to shorten the entire processing time required for giving the delivery instruction, and to operate the system quickly. It becomes possible to plan.

  In addition, when the reader 30 performs the kanban information reading process with respect to the kanban 10 of less than communicable quantity, the auxiliary kanban 19 shown in FIG. 12 is used. As shown in FIG. 12, the auxiliary kanban 19 includes a coil 12 provided with a cutting portion 13 and a capacitor 14, and the inductance L of the coil 12 of the auxiliary kanban 19 is substantially equal to the inductance L of the coil 12 of the kanban 10. is there. When the kanban 10 is less than the communicable quantity, the reading device 30 adds a necessary quantity of the auxiliary kanban 19 as shown in FIG. 13, and makes the quantity of the kanban 10 and the quantity of the auxiliary kanban 19 more than the communicable quantity. In this state, the kanban information reading process may be performed. The coil 12 of the kanban 10 makes the resonance frequency fr of the resonance circuit in the kanban 10 equal to the frequency fc of the radio wave transmitted in the reading device 30 or the writing devices 70A and 70B when the auxiliary kanban 19 is arranged in the vicinity. An inductance L is generated. Since the auxiliary kanban 19 has a configuration in which the IC chip 15 is deleted as compared with the kanban 10, the reading device 30 can accurately read only the information of the kanban 10 to be read.

  Moreover, the inductance L of the coil 12 in the kanban 10 is small compared with the inductance L when the cutting part 13 is not provided in the coil. For this reason, when the kanban 10 in which the cutting part 13 is not provided in the coil and the kanban 10 are close to each other, the kanban 10 cannot communicate with the reading device 30 and the writing devices 70A and 70B. On the other hand, only a kanban whose coil is not provided with the cutting part 13 can communicate with the reading device 30 and the writing devices 70A and 70B. Therefore, as shown in FIG. 14, when a non-standard kanban 10d in which the cutting part 13 is not provided in the coil is mixed in the plurality of kanbans 10, the actual quantity and information of the kanban can be read. By comparing the amount of kanban, it is possible to quickly grasp the contamination of the non-standard kanban 10d, and smooth system operation becomes possible.

  In FIG. 10, the cutting length of the cutting portion 13 in the kanban 10 has been described as 10 mm. However, the present invention is not limited to this, and as shown in FIG. 15, a cutting portion 13 a having a length longer than 10 mm may be used. Moreover, as shown in FIG. 16, it is good also as the cutting part 13b which cut | disconnected the conducting wire 1 round.

  Moreover, although the case where the kanban 10 in which the cutting part 13 was provided was used was demonstrated in this Embodiment 1, of course, you may use the kanban in which the cutting part 13 is not provided. In this case, information can be transmitted / received to / from a plurality of kanbans at once using the reading device 30 and the writing devices 70A and 70B having an anti-collision function.

  In the first embodiment, the case where the information written on the surface of the kanban 10 is rewritten by the surface rewriting devices 80A and 80B provided on the supplier side has been described. On the factory side, a surface information erasing device for erasing information written on the surface of the kanban 10 may be provided to erase the information on the surface of the kanban 10b after the kanban information reading process is completed. In this case, the kanban 10b from which the surface information has been deleted is distributed to each supplier. In this way, the kanban 10b from which the surface information has been erased can be easily visually recognized as the kanban 10b although the kanban information reading process has already been completed. For this reason, even if the kanban 10a before the kanban information reading process is mixed in the kanban 10b distributed to each supplier, the kanban 10a before the kanban information reading process is easily determined. This enables accurate operation of the delivery instruction system.

(Embodiment 2)
Next, a second embodiment will be described. In the first embodiment, the case where the reading device provided on the production factory side performs the kanban information reading process for erasing the read information out of the information stored in the kanban has been described. In the second embodiment, the kanban is used. In the information reading process, a case will be described in which the reading device does not delete the Kanban information.

  FIG. 17 is a block diagram illustrating a schematic configuration of the delivery instruction system according to the second embodiment. The reading device 230 shown in FIG. 17 reads the information of the kanban 10a removed from the component 20 in a non-contact manner through a radio wave of a predetermined frequency, like the reading device 30 in the first embodiment, The information of the kanban 10a is read at a time. Note that the reading device 230 does not perform the process of erasing the information stored in the kanban 10a. The writing devices 270A and 270B provided on the supplier side store information stored in the kanban 10a via radio waves of a predetermined frequency based on the delivery instruction information 43A and 43B received by the communication terminals 60A and 60B. rewrite.

  In the delivery instruction system according to the second embodiment, a kanban information reading process is performed to read the information of the kanban 10a removed due to the consumption of the parts 20. In the kanban information reading process according to the second embodiment, the reading device 230 does not erase the information for the kanban 10a from which the information has been read. Similar to the first embodiment, the communication terminal 40 performs a delivery instruction information creation process and a delivery instruction information transmission process by performing the same process procedure as that shown in FIGS. 4 and 5. As in the first embodiment, communication terminals 60A and 60B perform kanban information reception processing in the same processing procedure as the kanban information reception processing shown in FIG. Next, the writing devices 70A and 70B perform kanban information rewriting processing for rewriting the information in the kanban 10a based on the delivery instruction information 43A and 43B received by the communication terminals 60A and 60B. In the second embodiment, since the information on the kanban 10a is not deleted, the parts information and the supplier information at the time of the previous delivery are stored in the kanban 10a distributed to each supplier. The writing devices 270A and 270B rewrite the part information and the supplier information at the time of the previous delivery stored in the kanban 10a with the parts information corresponding to the parts that are newly instructed and the supplier information to which the kanban 10a is distributed. . Then, similarly to the first embodiment, the surface rewriting devices 80A and 80B are based on the delivery instruction information 43A and 43B received by the communication terminals 60A and 60B in the same processing procedure as the kanban surface rewriting process shown in FIG. Then, rewrite the information on the Kanban surface.

  As described above, in the second embodiment, the production factory side does not erase the read information, and the supplier side rewrites the information stored in the Kanban board. Even in such a case, similarly to the first embodiment, the delivery instruction to each supplier can be smoothly performed, and the same effect as the first embodiment can be obtained.

(Embodiment 3)
Next, a third embodiment will be described. In the first and second embodiments, the parts information and the supplier information are described on the surface of the kanban 10, and the supplier side rewrites the parts information and the supplier information in the delivery instruction information. In Embodiment 3, a case where a kanban from which various information described on the surface is deleted is described.

  FIG. 18 is a block diagram of a schematic configuration of the delivery instruction system according to the third embodiment. In the third embodiment, similarly to the kanban 10, the kanban 310 including the coil 12, the capacitor 14, and the IC chip 15 provided with the cutting portion 13 is used. For this reason, in the delivery instruction system according to the third embodiment, the information of the kanban 310 is read in a non-contact manner, and the delivery instruction information created based on the read information is transmitted to the supplier side via the network 50. The same effects as in the first embodiment are obtained. However, this Kanban 310 has deleted various information described on the surface. That is, various information is not described on the surface of the kanban 310. In the third embodiment, the information written on the surface of the kanban is not rewritten based on the delivery instruction information. Therefore, compared with the first embodiment, the surface rewriting devices 80A and 80B provided on the supplier side are deleted. It can be. For this reason, in this Embodiment 3, compared with Embodiment 1, the delivery instruction | indication system which is a simple structure is realizable.

  In the third embodiment, as in the first embodiment, the same processing procedure as that shown in FIGS. 4 and 5 is performed, so that the kanban information reading process, the delivery instruction information creating process, and the delivery instruction information transmission are performed. Processing, delivery instruction information reception processing and kanban information writing processing are performed. In the third embodiment, unlike the first embodiment, the kanban surface rewriting process shown in FIG. 4 is omitted. For this reason, in the third embodiment, compared to the first embodiment, it is possible to shorten the entire processing time required for giving a delivery instruction, and it is possible to achieve a quick system operation.

  As shown in FIG. 18, at the time of sorting the parts 20 in the delivery of the parts 20 or at the time of entering the production process of the parts 20, the kanban 310 is read using a reader 330 that reads the information stored in the kanban 310 in a non-contact manner. The component information stored in is read, and the components 20 are sorted and the components 20 are put into the production process.

(Embodiment 4)
Next, a fourth embodiment will be described. In the first to third embodiments, the case where the kanbans 10 and 310 having the coil 12 provided with the cutting unit 13 has been described. However, in the fourth embodiment, switching means for controlling a communication function with an external device. Delivery instructions using a Kanban board with

  FIG. 19 is a block diagram illustrating a schematic configuration of a delivery instruction system according to the fourth embodiment. FIG. 20 is a block diagram showing a schematic configuration of a kanban used in the fourth embodiment.

  As shown in FIGS. 19 and 20, the delivery instruction system according to the fourth embodiment uses a kanban 410. The delivery instruction system according to the fourth embodiment includes the communication terminal 40, the communication terminals 60A and 60B, and the surface rewriting devices 80A and 80B, similarly to the delivery instruction system according to the first embodiment. In addition, the delivery instruction system according to the fourth embodiment includes a reader 430 that reads information on the kanban 410 in a non-contact manner via radio waves having a predetermined frequency, and a non-contact information on the kanban 410 via the radio waves in a predetermined frequency. Writing devices 470A and 470B.

  As shown in FIG. 20, the kanban 410 includes a coil 413 having a switch 416, a capacitor 14 that forms a resonance circuit with the coil 413, and an IC chip 15 having a transmission / reception unit 15a, a control unit 15b, and a memory 15c. . The coil 413 is formed of a conductive wire and functions as an antenna that transmits and receives radio waves having a predetermined frequency. In addition, on the surface of the kanban 410, various information including parts information and delivery company information is displayed as in the kanban 10.

  The coil 413 includes a switch 416 that is a switching unit that controls a communication function of the kanban 410 with an external device. The switch 416 is an optical switch that is turned on while receiving light of a predetermined wavelength band from the outside. When the switch 416 does not receive light and is in an off state, a part of the conducting wire of the coil 413 is cut off, so that the kanban 410 of a predetermined quantity or more is the same as the kanban 10 in the first embodiment. When close to each other, information is transmitted to and received from the reading device 430 or the writing devices 470A and 470B. Here, the predetermined quantity is a quantity when the resonance frequency fr in the kanban 410 matches the frequency fc of the radio wave transmitted from the reading device 430 or the writing devices 470A and 470B when a plurality of kanbans 410 are brought close to each other. is there.

  In addition, when the switch 416 receives light and is turned on, the conductive wire of the coil 413 is not disconnected. When the switch 416 is in the on state, the inductance L of the coil 413 is larger than the inductance L of the coil 413 when the switch 416 is in the off state, and the resonance frequency fr in the kanban 410 is equal to the reading device 430 or the writing device 470A. , 470B and the frequency fc of the radio wave transmitted from 470B. Therefore, when the switch 416 is in the on state, the kanban 410 can send and receive information to and from the reading device 430 or the writing devices 470A and 470B even if it is a single unit.

  As illustrated in FIG. 19, the reading device 430 includes a reading unit 431 that reads information on the kanban 410 in a non-contact manner via radio waves having a predetermined frequency, and a switch control unit 433 that controls switching of the switch 416 in the kanban 410. . The reading unit 431 reads the information of the kanban 410 and erases the read information out of the information stored in the kanban 410. The switch control unit 433 turns on the switch 416 by transmitting light having a wavelength in a predetermined band to the switch 416 of the Kanban 410. Here, the reading unit 431 can read the information of the kanban 410 over the predetermined number in which the switch 416 is in the OFF state at a time. On the other hand, the reading unit 431 can perform reading processing on the single kanban 410 for the kanban 410 whose switch 416 is turned on by the switch control unit 433. The kanban 410 before the information is erased by the reader 430 will be described as a kanban 410a, and the kanban 410 after the information is erased by the reader 430 will be described as a kanban 410b.

  As shown in FIG. 19, the writing devices 470A and 470B include a writing unit 471 for writing part information and supplier information to the Kanban 410 in a non-contact manner via radio waves of a predetermined frequency, and switching of the switch 416 in the Kanban 410. And a switch control unit 473 for controlling each of them. Similarly to the switch control unit 433, the switch control unit 473 turns on the switch 416 by transmitting light having a wavelength in a predetermined band to the switch 416 of the Kanban 410.

  Next, with reference to FIG. 19 and FIG. 21, the processing procedure of the delivery instruction performed based on the information of the kanban 410 removed from the part 20 due to the consumption of the part 20 in the delivery instruction system shown in FIG. . FIG. 21 is a flowchart showing a delivery instruction processing procedure performed based on the information of the kanban 410 removed from the part 20 due to the consumption of the part 20 in the delivery instruction system according to the fourth embodiment.

  As shown in FIGS. 19 and 21, the reading device 430 performs a kanban information reading process of reading information on the kanban 410 a removed due to consumption of the component 20 (step S <b> 402). In the kanban information reading process (step S402), as in the kanban information reading process (step S102) in the first embodiment, in addition to reading the information of the kanban 410a, the quantity of the kanban 410a from which the information has been read and the actual reading target. It is determined whether or not the quantity of a certain kanban matches, and if it is determined that they do not match, the kanban 410a that cannot be read is specified.

  Then, the communication terminal 40 performs delivery instruction information creation processing by performing the same processing procedure as that shown in FIG. 5 (step S404). Next, by performing the same processing procedure as in the first embodiment, communication terminal 40 performs delivery instruction information transmission processing (step S406), and receiving devices 60A and 60B perform delivery instruction information reception processing (step S408).

  Then, the writing devices 470A and 470B perform kanban information writing processing for writing information to the kanban 410b in a non-contact manner based on the delivery instruction information 43A and 43B received by the communication terminals 60A and 60B (step S410). . In this kanban information writing process (step S410), information is written to the plurality of kanbans 410b by sequentially turning on the switch 416 of the kanban 410b. Then, the surface rewriting devices 80A and 80B perform a kanban surface rewriting process for rewriting information written on the surface of the kanban 410b by performing the same processing procedure as in the first embodiment (step S412).

  Next, the kanban information reading process will be described. FIG. 22 is a flowchart showing the processing procedure of the kanban information reading process. FIG. 23 is a diagram for explaining the kanban information reading process.

  As shown in FIG. 22, the reading unit 431 in the reading device 430 performs a batch reading process of reading information of a plurality of Kanbans 410a at a time (step S422). In this case, since the switch control unit 433 does not transmit light of a wavelength in a predetermined band, the switch 416 of each kanban 410a is in an off state.

  The reading device 430 performs collective reading processing (step S422) in the reading unit 431 to acquire reading information, and then the quantity of the kanban 410a that has read the information in the reading information and the actual quantity of the kanban 410a to be read. Are determined to match (step S424). If the quantity of the kanban 410a in the reading information does not match the actual quantity of the kanban 410a, the kanban 410a to be read includes the kanban 410a in which an abnormality has occurred due to damage to the IC chip 15 or the like. It is considered a thing. In order to give an accurate delivery instruction, it is desirable to identify which kanban 410a the kanban 410a in which such an abnormality has occurred. When the number of kanbans 410a in the reading information matches the actual number of kanbans 410a to be read (step S424: Yes), the reading device 430 is normal because all the kanbans 410a are normal. The read information is output as it is (step S438).

  Therefore, when the reading device 430 determines that the quantity of the kanban 410a in the reading information does not match the actual quantity of the kanban 410a (step S424: No), it identifies which kanban 410a has an abnormality. Therefore, by performing the following processing procedure, it is sequentially confirmed whether or not each Kanban 410a can be read.

  First, the reading device 430 transmits light of a predetermined band from the switch control unit 433 to the switch of the kanban 410a to be confirmed, and turns on the switch 416 of the kanban 410a (step S426). In this case, even when a plurality of kanbans 410 a are close to each other, only the kanban 410 a in which the switch 416 is turned on can transmit and receive information to and from the reading unit 431. As shown in FIG. 23, by receiving the light 433a transmitted from the switch control unit 433, the switch 416 of the kanban 410a changes from the off state to the on state.

  The reading device 430 transmits a response request radio wave having a predetermined frequency from the reading unit 431 to the kanban 410a while continuing to transmit light from the switch control unit 433 (step S428). It is determined whether or not a response radio wave corresponding to the response request radio wave has been received (step S430). Specifically, as shown in FIG. 23, the reading device 430 transmits light 433a from the switch control unit 433 and transmits the radio wave 431a from the reading unit 431 while the switch 416 of the kanban 410a is turned on. Whether or not the response radio wave transmitted from the kanban 410a is received is determined. If an abnormality has occurred in the kanban 410a due to damage to the IC chip 15 or the like, the communication function in the kanban 410a does not function normally, so the kanban 410a receives the response request radio wave and transmits the response radio wave. I can't.

  Therefore, when the reading unit 431 receives a response radio wave (step S430: Yes), the reading device 430 determines that the kanban 410a to be confirmed is normal (step S432). On the other hand, when the reader 431 determines that the response radio wave is not received by the reader 431 (step S430: No), the reader 430 determines that the Kanban 410a to be confirmed is abnormal (step S434). Then, the reading device 430 determines whether or not the communication function is confirmed to be normal or abnormal for all the kanbans 410a (step S436). When the reading device 430 determines that the communication function is not normal or abnormal for all the kanbans 410a (step S436: No), the reader 430 proceeds to step S426 and is the next target for confirmation. Processing for confirming whether the communication function is normal or abnormal is performed on the kanban 410a. On the other hand, when it is determined that the communication function has been confirmed to be normal or abnormal for all kanbans 410a (step S436: Yes), the acquired read information is output to the communication terminal 40 (step S438). ). Note that read information obtained by adding parts information and supplier instruction information of the kanban 410a determined to be abnormal using a method other than non-contact information transmission / reception may be output.

  In this way, in the kanban information reading process, it is determined whether or not the quantity of the kanban 410a from which the information has been read matches the quantity of the kanban that is actually being read. The kanban 410a is unreadable.

  Next, the kanban information writing process will be described. FIG. 24 is a flowchart showing the processing procedure of the kanban information writing process. FIG. 25 is a diagram illustrating a processing procedure in the kanban information writing process.

  The writing devices 470A and 470B transmit light of a predetermined band from the switch control unit 473 to the kanban 410b to which information is to be written, and turn on the switch 416 of the kanban 410b (step S462). As shown in FIG. 25, the switch 416 of the kanban 410b is in an off state before receiving the light transmitted from the switch control unit 473.

  As shown in FIG. 25, the writing devices 470A and 470B instruct the Kanban 410a to write the component information and the supplier information from the writing unit 471 while continuing to transmit light from the switch control unit 473. A radio wave having a predetermined frequency is transmitted to perform a write instruction radio wave transmission process (step S464). In this case, new information is written only in the kanban 410b in which the switch 416 is on. Then, the writing devices 470A and 470B receive the writing end radio wave informing that the writing is normally completed from the kanban 410b in the writing unit 471 (step S466), and the information on the kanban 410b is ended. Then, the writing devices 470A and 470B determine whether or not the writing of information has been completed for all the kanbans 410b (step S468), and determine that the writing of information has not been completed for all the kanbans 410b. If so (step S468: No), the process proceeds to step S462, and information is written to the Kanban board 410b to which information is to be written next. If the writing devices 470A and 470B determine that the writing of information has been completed for all the kanbans 410b (step S468: Yes), the kanban information writing process is terminated. In this way, in the kanban information writing process, new information is written only to the kanban 410b with the switch 416 turned on. Therefore, even when different information is written for each kanban 410b, the information can be written accurately. It is.

  As described above, in the delivery instruction system according to the fourth embodiment, the information of the kanban 410 is read in a non-contact manner, and the delivery instruction information created based on the read information is transmitted to the supplier side via the network 50. Therefore, the same effects as those of the first embodiment are obtained.

  In the delivery instruction system according to the fourth embodiment, in the kanban information reading process, it is determined whether or not the quantity of the kanban 410a that has read the information matches the quantity of the kanban that is actually read. If it is determined that they do not match, the kanban 410a that cannot be read is specified by performing the above-described processing. For this reason, it is possible to prevent the kanban 410a, which is unreadable, from being distributed again to the supplier side and being delivered to the production plant, and the delivery instruction of the parts 20 can be accurately specified. Can be performed.

  In the kanban information reading process, when the number of kanbans 410 to be read is less than a predetermined number, the number of kanbans 410 and the number of kanbans 19 are determined using the auxiliary kanban 19 as in the first embodiment. The kanban information reading process may be performed by setting the total quantity with the quantity to a predetermined quantity or more.

  In addition, as a kanban information writing process in the fourth embodiment, the case where information is written with the switches 416 of each kanban 410b sequentially turned on has been described. Information may be written to 410b at a time.

  Here, as the fourth embodiment, the case where the kanban 410 having the switch 416 which is an optical switch is used has been described. However, the present invention is not limited thereto, and as in the Japanese Patent Application No. 2003-193000 filed by the present applicant, The kanban 410c provided with the switch 416c shown in FIG. 26 may be used. The switch 416 is turned on when pressed by receiving a predetermined pressure. In this case, as illustrated in FIG. 26, the reading device 430c includes a switch control unit 433c having a switch pressing unit 433d that applies a predetermined pressure to the switch 416c.

  In addition, as shown in FIG. 27, the kanban used in the fourth embodiment may be a kanban 410e including a switch 416e that is turned on in response to a predetermined magnetic field strength. In this case, the switch control unit 433e in the reading device 430e includes a magnetic generation unit 433f including a magnet or the like that controls the on state of the switch 416e.

  In addition, as the Kanban in the fourth embodiment, the Kanban 410 provided with the switch 416 on the coil 413 has been described. However, the present invention is not limited thereto, and as shown in FIG. 28, the Kanban provided with the switch 416 in the circuit of the capacitor 14. It may be 410 g. Further, as shown in FIG. 29, a kanban 410h in which a switch 416 is provided on a connection portion 418 between the capacitor 14 and the IC chip 15 may be used. Although not shown, a structure in which a switch 416 is provided on a connection portion 417 between the coil 413 and the capacitor 14 may be employed. Moreover, although the kanban 410 provided with the single switch 416 was demonstrated, it is good not only as this but the kanban 410i provided with the some switch 416 as shown in FIG.

(Embodiment 5)
Next, a fifth embodiment will be described. In the first to third embodiments, the case where the kanbans 10 and 310 having the coil 12 provided with the cutting unit 13 is used has been described. However, in the fifth embodiment, the communication function with the external device is disabled. Delivery instructions are given using a kanban with a coil. FIG. 31 is a block diagram of a schematic configuration of a delivery instruction system according to the fifth embodiment. FIG. 32 is a block diagram showing a schematic configuration of a kanban used in the fifth embodiment.

  As shown in FIGS. 31 and 32, the delivery instruction system according to the fifth embodiment uses a kanban 510 provided with a canceling coil 514. Similarly to the delivery instruction system according to the first embodiment, the delivery instruction system according to the fifth embodiment includes the communication terminal 40, the communication terminals 60A and 60B, the writing devices 70A and 70B, and the surface rewriting devices 80A and 80B. . In addition, the delivery instruction system according to the fifth embodiment reads information on the kanban 510 in a non-contact manner via radio waves of a predetermined frequency, functions as the reading device 30, and a canceling coil 514 in the kanban 510. On the other hand, the canceling coil 514 includes a transmitting device 535 that transmits radio waves having a corresponding frequency.

  As shown in Japanese Patent Application No. 2003-299320 filed by the present applicant, the kanban 510 shown in FIG. 32 further includes a canceling coil 514 provided on the side surface of the kanban 510 compared to the kanban 10. The central axis of the canceling coil 514 is substantially perpendicular to the central axis of the coil 12, and therefore, the direction of the electric field generated by the canceling coil 514 and the direction of the electric field generated by the coil 12 are almost orthogonal. The canceling coil 514 is wound with a conducting wire with a smaller number of turns than the coil 12. The frequency of the radio wave received by the canceling coil 514 is different from the frequency of the radio wave transmitted / received by the coil 12 by a predetermined minute difference. For this reason, when radio waves having frequencies corresponding to the respective coils are transmitted to the coil 12 and the canceling coil 514, an induced current is generated in the coil 12, which is generated in the canceling coil 514. Due to the influence of the induced current, the power supply to the IC chip 15 becomes unstable. That is, the kanban 510 performs accurate communication with the reading device 530 even when the radio wave is transmitted from the transmitting device 535 to the canceling coil 514 even if it is close to the reading device 530. I can't do it. In the case where no radio wave is transmitted to the canceling coil 514, the kanban 510 is similar to the kanban 10 and when the kanban 510 of a predetermined number or more is in proximity, the reading device 530 or the writing devices 70A and 70B. Send and receive information. Also, on the surface of the kanban 510, various information including parts information and delivery company information is displayed as in the kanban 10.

  Next, with reference to FIG. 31 and FIG. 33, the delivery instruction processing procedure performed based on the information of the kanban 510 removed from the part 20 due to the consumption of the part 20 in the delivery instruction system shown in FIG. . FIG. 33 is a flowchart of a delivery instruction processing procedure performed based on the information of the kanban 510 removed from the part 20 due to the consumption of the part 20 in the delivery instruction system according to the fourth embodiment.

  As shown in FIGS. 31 and 33, the reading device 530 performs a kanban information reading process for reading the information of the kanban 510a removed by the consumption of the component 20 (step S502). In the kanban information reading process (step S502), the information of the kanban 510a is read in the same manner as in the first embodiment, and whether the number of the kanban 510a from which the information has been read matches the quantity of the kanban actually being read. If it is determined that they do not match, the kanban 510a that cannot be read is identified.

  Then, communication terminal 40 performs delivery instruction information creation processing by performing a processing procedure similar to the processing procedure shown in FIG. 5 (step S504), and performs a processing procedure similar to that of the first embodiment, thereby delivering a delivery instruction information. Information transmission processing is performed (step S506). Next, by performing the same processing procedure as in the first embodiment, communication terminals 60A and 60B perform delivery instruction information reception processing (step S508), and writing devices 70A and 70B perform kanban information writing processing (step S508). (S510), the surface rewriting devices 80A and 80B perform the kanban surface rewriting process (step S512).

  Next, the kanban information reading process shown in FIG. 33 will be described. FIG. 34 is a flowchart of a process procedure of the kanban information reading process shown in FIG. FIG. 35 is a diagram for explaining the kanban information reading process shown in FIG. FIG. 34 illustrates an example in which one kanban that cannot be read is mixed in the kanban 510a to be read.

  As shown in FIG. 34, the reading device 530 performs a batch reading process of reading the information of the plurality of Kanbans 510a at a time (step S522). In this case, since the transmitting device 535 does not transmit radio waves of a predetermined frequency, no induced current is generated in the canceling coil 514, and the kanban 510a can communicate with the reading device 530. .

  Then, the reading device 530 determines whether or not the quantity N of the kanban 510a that has read the information in the obtained reading information matches the actual quantity M of the kanban 510a that is the reading target (step S524). When the reading device 530 determines that the quantity N of the kanban 510a in the reading information does not match the actual quantity M of the kanban 510a to be read (step S524: No), the reading device 530 starts from the kanban 510a to be read. In order to identify the kanbans 510a that cannot be read, the following confirmation processing is performed for each kanban 510a. Since FIG. 34 shows a case where one kanban that cannot be read is mixed, the quantity N of the kanban 510a in the read information is obtained by subtracting 1 from the actual quantity M of the kanban 510a to be read. It becomes a numerical value. Further, when the reading device 530 determines that the quantity N of the kanban 510a in the reading information matches the actual quantity M of the kanban 510a to be read (step S524: Yes), the reading device 530 reads the information into the kanban 510a. Since the impossible Kanban is not mixed, the read information is output as it is (step S540).

  First, the transmitting device 535 transmits a radio wave having a frequency corresponding to the canceling coil 514 to the canceling coil of the kanban 510a to be confirmed (step S526). Then, the reading device 530 transmits response request radio waves to all the kanbans 510a to be read while the transmission device 535 continues to transmit radio waves (step S528). Then, the response radio wave from the kanban 510a to be read is received (step S530). Then, the reading device 530 determines whether or not the quantity N of the kanban 510a that has read the information in the obtained reading information and the actual quantity M of the kanban 510a that is the reading target are N = M−2. Step S532).

  As shown in FIG. 35, even if the kanban 510a that has transmitted the radio wave 535a from the transmitter 535 to the canceling coil 514 receives the radio wave 531a having a predetermined frequency from the reader 530, the reader 530 is used. Therefore, it is not possible to transmit the response radio wave 531b to the reading device 530. For this reason, when the kanban 510a is normally normal, when the radio wave 535a is transmitted from the transmitting device 535, communication with the reading device 530 becomes impossible, and the quantity N in the read information is 2 from the actual quantity M. The number is reduced by. As a result, when the reading device 530 determines that N = M−2 (step S532: Yes), it is determined that the kanban 510a to which radio waves are transmitted from the transmission device 535 is normal (step S534). . On the other hand, when the kanban 510b is originally unreadable, communication with the reading device 530 is impossible regardless of whether radio waves are transmitted to the canceling coil 514. Therefore, the value of the quantity N in the read information changes. N = M−1. As a result, when the reading device 530 determines that N = M−2 is not satisfied (step S532: No), the kanban 510a to which the radio wave is transmitted from the transmission device 535 is determined to be abnormal (step S536). Then, it is determined whether or not all Kanbans 510a have been confirmed to be normal or abnormal (Step S538), and all Kanbans 510a have been confirmed to be normal or abnormal. If not (step S538: No), the process proceeds to step S526, and normality or abnormality is confirmed for the next kanban 510a to be confirmed. If it is determined that all Kanbans 510a are normal or abnormal (step S538: Yes), the reading device 530 outputs the acquired read information to the communication terminal 40. (Step S540). Note that the part information and supplier information of the Kanban 510a determined to be abnormal may be added to the read information using a method other than non-contact information transmission and output.

  As described above, in the delivery instruction system according to the fifth embodiment, the information of the kanban 510 is read in a non-contact manner, and the delivery instruction information created based on the read information is transmitted to the supplier side via the network 50. The same effects as in the first embodiment are obtained.

  Further, in the delivery instruction system according to the fifth embodiment, it is determined whether or not the quantity of the kanban 510a from which the information has been read matches the actual quantity of the kanban 510a to be read. If it is determined, the kanban 510a that cannot be read is specified by performing the processing procedure shown in FIG. For this reason, there exists an effect similar to Embodiment 4. FIG.

  In the fifth embodiment, the case where one kanban that cannot be read is mixed with the kanban 510a to be read is described. However, when a plurality of kanbans that cannot be read are mixed, This unreadable kanban can be identified. In this case, each time the transmitting device 535 sequentially transmits radio waves to the cancellation coil 514 of each kanban 510a, the number of kanbans 510a that can be communicated is measured, and the measured quantity is larger than the other quantities. The kanban 510a that has transmitted radio waves to the canceling coil 514 when the measurement is performed is specified as the kanban that cannot communicate. For example, when the actual number of Kanbans 510a is 9, the number measured every time radio waves are transmitted from the transmitting device 535 is “7, 7, 7, 8, 7, 7, 7, 7, 8”. In this case, when the quantity “8” is measured, it is possible to specify that the kanban 510 a that has transmitted radio waves from the transmission device 535 is the kanban 510 a that cannot communicate.

  Further, the cutting part 13 in the kanban 510 may be 10 mm as in the cutting part 13 shown in FIG. 36 as in the first embodiment, and may be longer than 10 mm as shown in FIG. The cut part 13a which cut | disconnected may be sufficient, and as shown in FIG. 38, it is good also as the cut part 13b which cut | disconnected the conducting wire 1 round. 32, the Kanban 510 in which the coil 12 and the canceling coil 514 are connected in parallel has been described. However, the present invention is not limited to this, and as shown in FIG. 39, the coil 12 and the canceling coil 514 are connected to each other. It is good also as the Kanban 520 connected in series in 519a, 519b.

  In the delivery instruction system according to the fifth embodiment, not only the kanban 510 shown in FIG. 32, but also a kanban 521 provided with a switch 416 as shown in FIG. In this case, the reading device 530 further includes the switch control unit 433, so that the kanban information reading process can be performed by performing a processing procedure similar to the processing procedure shown in FIG. In this case, as the kanban information reading process, it is sufficient to select either the processing procedure shown in FIG. 34 using the transmitting device 535 or the processing procedure shown in FIG. 22 using the switch control unit 433.

(Embodiment 6)
Next, a sixth embodiment will be described. In the first to fifth embodiments, the case where kanban information is read through radio waves of a predetermined frequency has been described. In the sixth embodiment, the case where kanban information is optically read will be described.

  FIG. 41 is a diagram illustrating an example of a plan view of a kanban used in the delivery instruction system according to the sixth embodiment. As shown in FIG. 41, a kanban 610 used in the delivery instruction system according to the sixth embodiment is a barcode 614 in which various information including at least part information and supplier information is encoded and displayed on the surface of the kanban 610. Is described.

  FIG. 42 is a block diagram illustrating a schematic configuration of a delivery instruction system according to the sixth embodiment. As shown in FIG. 42, the delivery instruction system according to the sixth embodiment includes a reading device 630 that optically reads the information of the barcode 614 described on the surface of the kanban 610. In the sixth embodiment, the surface rewriting devices 80A and 80B encode various information including at least the parts information and the supplier information in addition to the parts information and the supplier information described on the surface of the Kanban 610. The barcode 614 is also rewritten. 42, the kanban 610 before the reading of information by the reading device 630 is referred to as 610a, and the kanban 610 after the reading of information by the reading device 630 is described as the kanban 610b.

  The delivery instruction system according to the sixth embodiment performs a kanban information reading process of reading information on the kanban 610a removed by the consumption of the component 20 using light of a predetermined band. In the kanban information reading process according to the sixth embodiment, the reading device 630 optically reads the barcode 614 described on the surface of the kanban 610a to obtain reading information including part information and supplier information, and performs communication. Output to the terminal 40. Then, similarly to the first embodiment, communication terminal 40 performs processing procedures similar to the processing procedures shown in FIGS. 4 and 5 to perform delivery instruction information creation processing and delivery instruction information transmission processing. Communication terminals 60A and 60B perform delivery instruction information reception processing by performing the same processing procedure as in the first embodiment. Then, the surface rewriting devices 80A and 80B rewrite various information including the barcode 614 described on the surface of the kanban 610b based on the delivery instruction information 43A and 43B received by the communication terminals 60A and 60B.

  As described above, the delivery instruction system according to the sixth embodiment describes the barcode 614 on the surface of the kanban 610, optically reads the information of the barcode 614, and creates the delivery based on the read information. Since the instruction information is transmitted to the supplier side via the network 50, the same effect as in the first embodiment is obtained.

  In addition, although the case where the barcode 614 was described on the surface as the kanban 610 used in the sixth embodiment has been described, the coils 12, 413 functioning as antennas for transmitting and receiving radio waves of a predetermined frequency, the capacitor 14, A kanban further provided with the IC chip 15 may be used. In this case, the delivery instruction system reads and writes information stored in the IC chip 15 via radio waves having a predetermined frequency, and reading devices 30, 230, 430, and 530 and writing devices 70A, 70B, 270A, 270B, and 470A. , 470B. In this case, it is possible to read both the information of the barcode 614 described in the kanban 610 and the information of the IC chip 15 included in the kanban 610. Therefore, even if either the rewriting failure of the barcode 614 or the communication failure due to the breakage of the IC chip 15 or the like occurs, it becomes possible to reliably acquire the reading information including the parts information and the supplier information, Delivery instructions to the supplier can be made accurately. On the other hand, in order to create the delivery instruction information, it is sufficient to read either the information of the barcode 614 or the memory stored in the IC chip 15, so that the reading device 630 or the reading device that optically reads the information of the barcode 614. 30, 230, 430, and 530 can be selectively provided, and a delivery instruction system having a simple configuration can be realized.

  Further, the readers 30, 230, 330, 430, 530, 630, the communication terminal 40, the communication terminals 60A, 60B, the writing devices 70A, 70B, 270A, 270B, 470A, 470B, the surface rewriting device in the first to sixth embodiments. 80A and 80B have programs that define processing procedures of various processing operations of the respective constituent parts constituting the respective devices, and include control means for controlling the respective constituent parts using these programs. Each processing procedure of the delivery instruction system according to the first to sixth embodiments is performed by controlling each processing operation and each information processing operation.

  In the first, second, fourth and sixth embodiments, Kanbans 10, 410, 510, and 610 in which a material whose display color is changed by performing predetermined heat treatment, temperature rise treatment, and temperature fall treatment on the surface are applied. However, the present invention is not limited to this, and a kanban whose surface includes a material containing a predetermined magnetic material may be used. In this case, each supplier provides a surface rewriting device 80A, 80B for each communication terminal 60A, 60B as a surface rewriting device 80A, 80B, which gives a predetermined magnetic field strength to the kanban surface and rewrites information displayed on the kanban surface. Just do it. This is because the information described on the surface of the kanban can be rewritten by changing the direction of the magnetic material applied to the surface of the kanban by giving a predetermined magnetic field strength.

  In the first to sixth embodiments, the case where the kanbans 10, 310, 410, 510 that do not have the battery function are used has been described. Of course, kanbans that have the battery function may be used. Also in this case, since the communication terminal 40 transmits the delivery instruction information created based on the information read from the kanban to the supplier via the network 50, the same effect as described above is obtained.

(Appendix 1)
Information on the delivery instruction medium removed from the part by consumption of the part by using a delivery instruction medium that is delivered together with the part and stores part information on the part and supplier information on a supplier who delivered the part. In the delivery instruction system for instructing delivery of the parts based on the information, the reader for reading the information of the delivery instruction medium removed from the parts, and the information of each delivery instruction medium read by the reader are each supplier information The number of information having the same part information is totaled for each part information to obtain quantity information, and each piece of supplier information includes the part information and the quantity information corresponding to the part information. A transmission processing device that transmits delivery instruction information to each supplier via the network, and is provided for each supplier and is transmitted from the transmission processing device. The delivery instruction information is received via a network, and the reception instruction device is provided for each reception processor, and the delivery instruction medium is received on the basis of the delivery instruction information received by the reception processor. A delivery instruction system comprising a writing device for writing information.

(Appendix 2)
On the surface of the delivery instruction medium, at least the parts information and the supplier information are displayed, provided for each reception processing device, and based on the delivery instruction information received by the receiving device, the delivery instruction The delivery instruction system according to appendix 1, further comprising a surface rewriting device for newly rewriting the component information and the supplier information displayed on the surface of the medium.

(Appendix 3)
The delivery instruction medium is a non-contact information medium that transmits and receives information in a non-contact manner, the reading device reads information in the delivery instruction medium in a non-contact manner, and the writing apparatus is in a contactless manner to the delivery instruction medium. The delivery instruction system according to appendix 1 or 2, characterized in that information is written to the system.

(Appendix 4)
The delivery according to any one of appendices 1 to 3, wherein the reading device reads the information of the delivery instruction medium and erases the read information among the information stored in the delivery instruction medium. Instruction system.

(Appendix 5)
The delivery instruction system according to any one of appendices 1 to 4, wherein the reader reads information of a plurality of delivery instruction media at a time.

(Appendix 6)
The delivery instruction medium is formed of a conductive wire and functions as an antenna that transmits and receives radio waves of a predetermined frequency, a capacitor that forms a resonance circuit with the coil, and information that is transmitted and received between the reading device and the writing device. A delivery instruction system according to any one of appendices 1 to 5, wherein at least a part of the conducting wire is cut off.

(Appendix 7)
The delivery instruction medium includes a coil that functions as an antenna that transmits and receives radio waves of a predetermined frequency, a capacitor that forms a resonance circuit with the coil, and a control circuit that controls information transmitted and received between the reading device and the writing device. And a switching means provided in at least one place on the coil, the capacitor, the control circuit, or a connection portion between them, and for controlling a communication function. The delivery instruction system according to any one of the above.

(Appendix 8)
The delivery instruction system according to appendix 7, wherein the switching means is an optical switch, a magnetic switch, or a mechanical switch means.

(Appendix 9)
The reading device includes switching control means for controlling switching of the switching means, and the reading device delivers the single unit while the switching control unit turns on the switching unit in the single delivery instruction medium. 9. The delivery instruction system according to appendix 7 or 8, characterized in that the information on the instruction medium is read.

(Appendix 10)
The writing device comprises switching control means for controlling the switching of the switching means, and the writing device delivers the single unit while the switching control unit turns on the switching unit in the single delivery instruction medium. 10. The delivery instruction system according to any one of appendices 7 to 9, wherein information is written to the instruction medium.

(Appendix 11)
The delivery instruction medium transmits and receives between the first coil functioning as an antenna for transmitting and receiving radio waves of a predetermined frequency, a capacitor that forms a resonance circuit with the first coil, and the reading device and the writing device. A control circuit for controlling information, and a resonance circuit formed by the first coil and the capacitor are electrically connected, and when receiving a predetermined electromagnetic wave, a value of a current flowing through the resonance circuit is reduced, and The delivery instruction system according to any one of appendices 1 to 5, further comprising: a second coil that disables communication between the reading device and the writing device.

(Appendix 12)
The delivery instruction system according to claim 11, wherein a central axis of the second coil is substantially orthogonal to a central axis of the first coil.

(Appendix 13)
13. The delivery instruction system according to appendix 11 or 12, wherein the direction of the electric field generated by the second coil and the direction of the electric field generated by the first coil are substantially orthogonal.

(Appendix 14)
The delivery instruction system according to any one of appendices 11 to 13, wherein the frequency of the radio wave transmitted and received by the first coil is different from the frequency of the radio wave transmitted and received by the second coil.

(Appendix 15)
The delivery instruction system according to any one of appendices 11 to 14, wherein at least a part of the first coil is cut.

(Appendix 16)
The transmitter further includes a transmitter that transmits radio waves transmitted and received by the second coil to the second coil, and the reader sequentially transmits predetermined radio waves to the second coils of each delivery instruction medium. Each time the transmission is performed, the quantity of the delivery instruction medium that can be communicated is measured, and a predetermined radio wave is transmitted to the second coil when the measured quantity indicates a quantity larger than the other quantities. The delivery instruction system according to any one of appendices 11 to 15, wherein the delivery instruction medium that has been used is identified as the delivery instruction medium that is not communicable.

1 is a block diagram showing a schematic configuration of a delivery instruction system according to a first embodiment. It is a figure which shows an example of the top view of the kanban shown in FIG. It is a block diagram which shows schematic structure of the kanban shown in FIG. 5 is a flowchart showing a delivery instruction processing procedure performed based on information on a kanban removed from a part due to consumption of the part in the delivery instruction system according to the first exemplary embodiment; It is a flowchart which shows the process sequence of the delivery instruction information creation process shown in FIG. It is a figure which shows an example of the read information which the communication terminal shown in FIG. 1 received. It is a figure which shows an example of the rearrangement information which the communication terminal shown in FIG. 1 rearranged. It is a figure which shows an example of the total information totaled by the communication terminal shown in FIG. It is a figure which shows an example of the delivery instruction information which the communication terminal shown in FIG. 1 produced. It is a figure which shows the shape of the coil shown in FIG. It is the figure which illustrated the quantity of the Kanban which the reader shown in Drawing 1 can perform Kanban information reading processing. 1 is a block diagram illustrating a schematic configuration of an auxiliary kanban according to a first embodiment; It is the figure explaining the case where the reader shown in FIG. 1 performs a kanban information reading process using an auxiliary kanban. It is a figure explaining the kanban information reading process in case the nonstandard kanban 10d is mixed in the some kanban. It is a figure which shows the other example of the shape of the coil shown in FIG. It is a figure which shows the other example of the shape of the coil shown in FIG. It is a block diagram which shows schematic structure of the delivery instruction | indication system concerning Embodiment 2. FIG. It is a block diagram which shows schematic structure of the delivery instruction | indication system concerning Embodiment 3. It is a block diagram which shows schematic structure of the delivery instruction | indication system concerning Embodiment 4. It is a block diagram which shows schematic structure of the kanban shown in FIG. 14 is a flowchart illustrating a processing procedure of a delivery instruction performed based on information on a kanban removed from a part due to consumption of the part in the delivery instruction system according to the fourth exemplary embodiment. It is a flowchart which shows the process sequence of the kanban information reading process shown in FIG. It is a figure explaining the kanban information reading process shown in FIG. It is a flowchart which shows the process sequence of the kanban information writing process shown in FIG. It is a figure explaining the kanban information writing process shown in FIG. It is a block diagram which shows the other example of schematic structure of the kanban shown in FIG. It is a block diagram which shows the other example of schematic structure of the kanban shown in FIG. It is a block diagram which shows the other example of schematic structure of the kanban shown in FIG. It is a block diagram which shows the other example of schematic structure of the kanban shown in FIG. It is a block diagram which shows the other example of schematic structure of the kanban shown in FIG. It is a block diagram which shows schematic structure of the delivery instruction | indication system concerning Embodiment 5. FIG. It is a block diagram which shows schematic structure of the kanban shown in FIG. 14 is a flowchart showing a delivery instruction processing procedure performed based on information on a kanban removed from a part due to consumption of the part in the delivery instruction system according to the fifth embodiment. It is a flowchart which shows the process sequence of the kanban information reading process shown in FIG. It is a figure explaining the kanban information reading process shown in FIG. It is a figure which shows the shape of the coil shown in FIG. It is a figure which shows the other example of the shape of the coil shown in FIG. It is a figure which shows the other example of the shape of the coil shown in FIG. It is a block diagram which shows the other example of schematic structure of the kanban shown in FIG. It is a block diagram which shows schematic structure of the kanban shown in FIG. FIG. 20 is a diagram illustrating an example of a plan view of a kanban according to a sixth embodiment. It is a block diagram which shows schematic structure of the delivery instruction | indication system concerning Embodiment 6. FIG.

Explanation of symbols

10, 10a, 10b, 310a, 310b, 410, 410a, 410b, 410c, 410e, 410g, 410h, 410i, 510, 510a, 510b, 520, 521, 610, 610a, 610b Kanban 10c Kanban group 10d Non-standard Kanban 12 , 413 Coil 13, 13a, 13b Cutting unit 14 Capacitor 15 IC chip 15a Transmission / reception unit 15b Control unit 15c Memory 17a, 17b Connection unit 19 Auxiliary kanban 19a Auxiliary kanban group 20 Parts 22 Collection containers 30, 230, 330, 430, 430c, 430e, 530, 630 Reading device 31 Reading information 40, 60A, 60B Communication terminal 41 Sorting information 42 Total information 43A, 43B Delivery instruction information 50 Network 70A, 70B, 270A, 27 B, 470A, 470B Writing device 80A, 80B Surface rewriting device 416, 416c, 416e Switch 417, 418 Connection unit 431 Reading unit 431a, 531a, 531b, 535a, Radio wave 433, 433c, 433e, 473 Switch control unit 433a Light 433d switch Push part 433f Magnetic generation part 471 Writing part 514 Canceling coil 517a, 517b, 518a, 518b Connection part 535 Transmitting device 614 Bar code

Claims (9)

Information on the delivery instruction medium removed from the part by consumption of the part by using a delivery instruction medium that is delivered together with the part and stores part information on the part and supplier information on a supplier who delivered the part. In a delivery instruction system for instructing delivery of the parts based on
A reading device for reading information of the delivery instruction medium removed from the parts;
The information of each delivery instruction medium read by the reader is rearranged for each supplier information, the quantity of information having the same part information for each part information is totaled to obtain quantity information, and for each supplier information A transmission processing device for transmitting delivery instruction information including the part information and the quantity information corresponding to the part information to each supplier via a network;
A reception processing device that is provided for each supplier and receives the delivery instruction information transmitted from the transmission processing device via a network;
A writing device that is provided for each reception processing device and writes information to the delivery instruction medium based on the delivery instruction information received by the reception processing device;
With
The delivery instruction medium is a non-contact information medium that transmits and receives information without contact;
The reader reads the delivery instruction medium information in a non-contact manner,
The writing device writes information to the delivery instruction medium in a non-contact manner,
The delivery instruction medium is
A coil formed of a conductive wire and functioning as an antenna for transmitting and receiving radio waves of a predetermined frequency;
A capacitor that forms a resonant circuit with the coil;
A control circuit for controlling information transmitted and received between the reading device and the writing device;
The coil has an electromagnetic wave emitted from the reading device or the writing device with a resonance frequency of the resonance circuit when at least a part of the conducting wire is cut and the delivery instruction medium is arranged in the vicinity of the coil. A delivery instruction system characterized by having an inductance that generates an inductance that can communicate at a certain frequency . On the surface of the delivery instruction medium, at least the parts information and the supplier information are displayed,
Surface rewriting that is provided for each reception processing device and newly rewrites the parts information and the supplier information displayed on the surface of the delivery instruction medium based on the delivery instruction information received by the receiver. The delivery instruction system according to claim 1, further comprising a device. The delivery instruction system according to claim 1 or 2 , wherein the reading device reads information of the delivery instruction medium and erases the read information from information stored in the delivery instruction medium. The delivery instruction system according to any one of claims 1 to 3 , wherein the reading device reads information of a plurality of delivery instruction media at a time. On the surface of the delivery instruction medium, in addition to the part information and the supplier information, the encoded part information and the encoded supplier information are displayed,
The reader optically reads the encoded part information and the encoded supplier information in the delivery instruction medium;
The surface rewriting device is encoded with the encoded part information displayed on the surface of the delivery instruction medium in addition to the parts information and the supplier information displayed on the surface of the delivery instruction medium. 5. The delivery instruction system according to claim 2 , wherein the supplier information is newly rewritten. Information on the delivery instruction medium removed from the part by consumption of the part by using a delivery instruction medium that is delivered together with the part and stores part information on the part and supplier information on a supplier who delivered the part. In the delivery instruction method for instructing delivery of the parts based on
A reading step of reading information of the delivery information medium removed from the part;
A reordering step of reordering the information of each delivery instruction medium read in the reading step for each supplier information;
A quantity of information having the same part information is aggregated for each part information to obtain quantity information, and for each supplier information, delivery instruction information including the part information and the quantity information corresponding to the part information is networked. A transmission processing step for transmitting via
A reception processing step for receiving the delivery instruction information transmitted in the transmission processing step via a network;
Based on the delivery instruction information received in the reception processing step, a writing step of writing information to the delivery instruction medium;
Only including,
The delivery instruction medium is a non-contact information medium that transmits and receives information without contact;
The reading step reads the information on the delivery instruction medium in a non-contact manner,
The writing step writes information to the delivery instruction medium in a non-contact manner,
The delivery instruction medium is
A coil formed of a conductive wire and functioning as an antenna for transmitting and receiving radio waves of a predetermined frequency;
A capacitor that forms a resonant circuit with the coil;
A control circuit for controlling information transmitted and received between the reading device and the writing device;
The coil has an electromagnetic wave emitted from the reading device or the writing device with a resonance frequency of the resonance circuit when at least a part of the conducting wire is cut and the delivery instruction medium is arranged in the vicinity of the coil. A delivery instruction method characterized by having an inductance that generates an inductance that can communicate at a certain frequency . The method further includes a surface rewriting step of rewriting at least the part information and the supplier information on the surface of the delivery instruction medium based on the delivery instruction information received in the reception processing step. The delivery instruction method according to claim 6 . The delivery instruction method according to claim 6 or 7, wherein the reading step reads information on the delivery instruction medium and erases the read information from information stored in the delivery instruction medium. The delivery instruction method according to any one of claims 6 to 8 , wherein the reading step reads information of a plurality of the delivery instruction media at a time.

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