JP2015191489A - Data writing system and data writing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further improve the production efficiency of a circuit board.SOLUTION: A data writing system 1 of the present invention includes a plurality of circuit boards 11-14 and a data transmission device 2. Each of the plurality of circuit boards 11-14 has a circuit part that includes: a radio communication unit that can receive data including an initial program by radio communication; a memory where data can be written; and a data writing unit that writes data to the memory. The data transmission device 2 transmits data to the plurality of circuit boards 11-14 by radio communication in a circuit board manufacturing process.

Description

  The present invention relates to a data writing system and a data writing method used in a circuit board manufacturing process.

  Conventionally, in the manufacturing process of a circuit board on which an electronic circuit is printed and a circuit board on which an electronic component is mounted, for example, in order to improve work efficiency and reduce costs, a plurality of substrates A technique using a collective circuit board designed so as to obtain a circuit board is proposed.

  For such collective circuit boards, various electronic components are usually mounted on the circuit board, and then the various electronic components are electrically connected to check whether the circuit in the electronic components operates normally. An electrical inspection is performed for the purpose. At the time of this inspection, the inspection terminals of the inspection jig are electrically connected to, for example, contact with the inspection conduction terminals provided on the individual circuit boards. Therefore, after separating each circuit board from the collective circuit board individually and performing such an inspection on each separated circuit board, the inspection terminal of the inspection jig and the conduction terminal of the circuit board are connected. Increases the number of contacts. In this case, for example, problems such as an increase in inspection time and deterioration of an inspection jig (such as wear of inspection terminals) occur.

  Therefore, conventionally, various techniques for solving this problem have been proposed (see, for example, Patent Documents 1 and 2). In Patent Documents 1 and 2, an electronic circuit composed of inspection wiring connected to each circuit board is printed on the area of the collective circuit board (the discarded board area) remaining after the circuit board is separated from the collective circuit board. However, there has been proposed a technique that makes it possible to inspect each circuit board in the state of the collective circuit board before the circuit board is cut off.

JP 2006-344879 A JP 2004-235575 A

  If the techniques proposed in Patent Documents 1 and 2 described above are used, effects such as improvement in work efficiency of circuit board continuity inspection and reduction in wear of inspection jigs can be obtained. However, further improvement in production efficiency of circuit boards is required in this technical field.

  The present invention has been made to meet the above-described demands, and an object of the present invention is to provide a technique capable of further improving the production efficiency of a circuit board in a circuit board manufacturing process.

  In order to solve the above-described problems, a data writing system of the present invention includes a wireless communication unit that can receive data including an initial program by wireless communication, a memory that can write data, and a data writing unit that writes data to the memory. A plurality of circuit boards each having a circuit portion including the data circuit, and a data transmission device that transmits data to the plurality of circuit boards by wireless communication in the circuit board manufacturing process.

  The data writing method of the present invention is a data writing system comprising a plurality of circuit boards each having a circuit unit including a memory capable of writing data, and a data transmission device for transmitting data to the plurality of circuit boards. This is a data writing method for writing data to a memory in a circuit unit included in each circuit board, and is performed according to the following procedure. First, in a circuit board manufacturing process, a data transmission device transmits data including an initial program to a circuit unit in the circuit board by wireless communication. Next, a wireless communication unit provided in the circuit unit and capable of wireless communication receives data transmitted from the data transmission device. Then, the data writing unit provided in the circuit unit writes the received data to the memory in its own circuit unit.

  In the present invention configured as described above, in a circuit board manufacturing process, data including an initial program is transmitted from a data transmission device (external) to a plurality of circuit boards by wireless communication. According to the present invention having such a configuration, the production efficiency of the circuit board can be further improved.

It is a figure for demonstrating the outline | summary of a structure and operation | movement of the data writing system which concerns on one Embodiment of this invention. 1 is a block configuration diagram of a data writing device in a data writing system according to an embodiment of the present invention. It is a block block diagram of the circuit board in the data writing system which concerns on one Embodiment of this invention. It is a figure which shows the data writing operation example 1 to the several circuit board by the data writing system which concerns on one Embodiment of this invention. It is a figure which shows the data writing operation example 2 to the several circuit board by the data writing system which concerns on one Embodiment of this invention. It is a figure which shows the data write operation example 3 to the several circuit board by the data write system which concerns on one Embodiment of this invention. It is a flowchart which shows the procedure of the data writing process to the several circuit board by the data writing system which concerns on one Embodiment of this invention. It is a schematic block diagram of the data writing system of the modification 1.

<Outline of data writing system>
The content of the data writing system according to the embodiment of the present invention will be specifically described below with reference to the drawings. First, specific problems to be solved by the data writing system of the present invention will be described. explain.

  As described above, conventionally, in the circuit board manufacturing process, a continuity test is performed for each of the plurality of circuit boards provided on the collective circuit board to confirm whether or not the circuit board normally operates. When the technique proposed in Patent Documents 1 and 2 is applied in this continuity inspection process, effects such as improvement in work efficiency of circuit board continuity inspection and reduction in wear of inspection jigs are obtained. It is done.

  However, in general, a circuit board manufacturing process is divided into two processes, a so-called physical process and a logical process. In the logical process, for example, a process of programming firmware for a product or the like (so-called on-board programming process) is performed on a storage device (memory) included in an electronic component mounted on a circuit board.

  In such a programming process, a program such as product firmware is conventionally written in a memory in each circuit board separated from the collective circuit board by using a data writing device with a jig. Specifically, the data writing device is attached to the circuit board via a jig, and then a program is transmitted from the data writing device to the circuit board, and the program is written to a memory in the circuit board.

  Therefore, in the circuit board manufacturing process, in order to further improve the production efficiency of the circuit board, it is necessary to further improve the work efficiency of the data writing process to the memory mounted on each circuit board. Note that the techniques proposed in Patent Documents 1 and 2 cannot be applied to the processing of the programming process.

  Therefore, the present invention proposes a data writing system capable of further improving the work efficiency of data writing processing to a plurality of circuit boards in a programming process such as product firmware.

[Data writing system configuration]
First, the configuration of a data writing system according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic configuration diagram of a data writing system according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an internal configuration of the data writing apparatus according to the present embodiment, and FIG. 3 is a diagram illustrating an internal configuration of each circuit board according to the present embodiment.

  As shown in FIG. 1, the data writing system 1 includes a data writing device 2 (data transmitting device) and a plurality of circuit boards 11 to 14 (hereinafter referred to as first circuit board 11 to fourth circuit board 14 respectively). Prepare. In the present embodiment, an example in which the first circuit board 11 to the fourth circuit board 14 are provided separately from each other will be described. In the present embodiment, an example in which the data writing system 1 includes four circuit boards as shown in FIG. 1 will be described. However, the present invention is not limited to this, and the number of circuit boards can be arbitrarily set. Can be set.

  As shown in FIG. 2, the data writing device 2 includes a memory 3, a wireless communication unit 4, and a CPU (Central Processing Unit) 5. The data writing device 2 wirelessly communicates with a circuit unit described later (see FIG. 3 described later) provided on each circuit board to transmit various data (various programs, identification ID, individual information, commands, etc.) to the circuit unit. It has the function to transmit to. Therefore, the data writing device 2 is disposed at a position where wireless communication is possible with respect to each circuit board.

  The memory 3 in the data writing device 2 stores various data (various programs, identification ID, individual information, commands, etc.) written to the memory in each substrate circuit. These various data are preinstalled in the memory 3 in the data writing device 2 in advance.

  Various programs stored in the memory 3 in the data writing device 2 need to be stored in the memory in the circuit board in advance before shipping (manufacturing stage) of the circuit board, such as product firmware. A program (hereinafter referred to as an initial program) is included. Further, in this embodiment, in order to enable a data write operation example 2 (see FIG. 5 to be described later) and a data write operation example 3 (see FIGS. 6A and 6B to be described later) described later, A transmission correspondence table that defines the correspondence between the type of each stored data (firmware, etc.) and information about the circuit board that is the transmission destination of each data (for example, the serial number of the memory in the circuit board of the transmission destination). Is also stored.

  The wireless communication unit 4 in the data writing device 2 is configured by a communication circuit including an IC (Integrated circuit), an antenna, and the like. The wireless communication unit 4 has a function of wirelessly communicating with each circuit board and transmitting various data stored in the memory 3 to each circuit board. In this embodiment, as a communication method between the data writing device 2 and the circuit board, for example, a short-range communication method such as BLE (Bluetooth (registered trademark) Low Energy) or WiFi (registered trademark) is used. it can. Furthermore, in the present embodiment, the wireless communication unit 4 in the data writing device 2 has a configuration capable of broadcast transmission to the first circuit board 11 to the fourth circuit board 14. Therefore, in the present embodiment, the same data can be simultaneously transmitted from the data writing device 2 to the first circuit board 11 to the fourth circuit board 14.

  The CPU 5 in the data writing device 2 is an arithmetic processing device for controlling various operations performed in the data writing device 2. For example, various operations such as a data transmission operation to each circuit board described later are controlled. Although not shown in FIG. 2, power for driving the CPU 5 in the data writing device 2 is supplied to the data writing device 2 during the data writing operation in the data writing system 1.

  The first circuit board 11 to the fourth circuit board 14 have the same configuration. Therefore, only the configuration of the first circuit board 11 will be described here.

  As shown in FIG. 3, the first circuit board 11 includes a circuit board main body 11a and a circuit unit 20 provided on the circuit board main body 11a.

  The circuit unit 20 includes a functional unit 21, a memory 22, a wireless communication unit 23, and a CPU 24 (data writing unit). In the circuit unit 20, the CPU 24 is electrically connected to the function unit 21, the memory 22, and the wireless communication unit 23.

  The functional unit 21 is a circuit for realizing a predetermined function performed by the first circuit board 11 (circuit unit 20).

  The memory 22 in the circuit unit 20 stores various programs (when necessary functions are executed on the first circuit board 11 (circuit unit 20) by the data writing operation of the data writing system 1 in the circuit board manufacturing process). (Including an initial program), various data such as an identification ID, individual information, and a command are stored.

  Further, the memory 22 in the circuit unit 20 is connected between the CPU 24 in the circuit unit 20 and the data writing device 2 and another circuit board, which is performed in the data writing operation in the circuit board manufacturing process described later. A program for executing data transmission / reception processing and data writing processing to the memory 22 in its own circuit unit 20 is also included. The execution program of this data writing process is preinstalled in advance in the memory 22 in the circuit unit 20, for example.

  Although not shown in FIG. 3, during the data writing operation in the data writing system 1, power for driving electronic components such as a CPU, a memory, and a wireless communication unit mounted on each circuit board is supplied to each circuit board. Supplied. By this power supply, an execution program for data write processing stored in advance in the memory in each circuit board is started.

  The wireless communication unit 23 in the circuit unit 20 includes a communication circuit including an IC, an antenna, and the like. The wireless communication unit 23 has a configuration capable of wireless communication with other circuit boards and the data writing device 2. Specifically, the wireless communication unit 23 has a function of receiving data from the data writing device 2 and a function of transmitting and receiving data to and from other circuit boards.

  In this embodiment, a short-range communication method such as BLE or WiFi (registered trademark) can be used as a communication method between circuit boards. Furthermore, in the present embodiment, the wireless communication unit 23 has a configuration capable of broadcast transmission to other circuit boards. Therefore, in the present embodiment, the same data can be simultaneously transmitted from a predetermined circuit board to the other three circuit boards. Moreover, in this embodiment, each circuit board is arrange | positioned in the position where wireless communication is possible with respect to another circuit board.

  The CPU 24 in the circuit unit 20 is an arithmetic processing unit for controlling all the various operations executed on the first circuit board 11 (circuit unit 20). Therefore, the CPU 24 controls the operation of the functional unit 21, the data input / output operation for the memory 22 (including the data writing operation to the memory 22 in the circuit board manufacturing process), and the communication operation of the wireless communication unit 23. The

[Operation examples of data writing system]
Next, various operation examples (data write operation example 1 to data write operation example 3) during data write processing in the data write system 1 of the present embodiment will be described.

(1) Data write operation example 1
First, a data write operation example 1 performed by the data write system 1 in a circuit board programming process will be described with reference to FIG. FIG. 4 is a diagram showing an operation state of the data writing system 1 in the data writing operation example 1.

  In the data writing operation example 1, an example will be described in which all data (including product firmware and the like) stored in the memory 3 in the data writing device 2 is transmitted to each circuit board. In this example, as shown in FIG. 4, an example in which data A and data B are stored in the memory 3 in the data writing device 2 will be described.

  In the data writing operation example 1, first, the data writing device 2 transmits all data (data A and data B) stored in the memory 3 in the data writing device 2 to each circuit board. At this time, the data writing device 2 transmits data A and data B simultaneously to the first circuit board 11 to the fourth circuit board 14 by broadcast transmission.

  Then, the CPU in the circuit unit provided on each circuit board writes the received data A and data B into the memory in its own circuit unit. As a result, as shown in FIG. 4, all the data (data A and data B) stored in the memory 3 in the data writing device 2 is written into the memory in the circuit section provided on each circuit board.

  In the data write operation example 1, the example in which broadcast transmission is performed between the data writing device 2 and the plurality of circuit boards and the same data is simultaneously transmitted to the plurality of circuit boards has been described. It is not limited to this. For example, data may be transmitted from the data writing device 2 to each circuit board in a predetermined order.

(2) Data write operation example 2
Next, a data write operation example 2 performed by the data write system 1 in the circuit board programming process will be described with reference to FIG. FIG. 5 is a diagram showing an operation state of the data writing system 1 in the data writing operation example 2.

  In the data writing operation example 2, an example in which the type of data transmitted from the data writing device 2 is changed for each circuit board will be described. In this example, as shown in FIG. 5, an example in which data A and data B are stored in the memory 3 in the data writing device 2 will be described, as in the data writing operation example 1.

  In the data writing operation example 2, first, the data writing device 2 simultaneously transmits the data A stored in the internal memory 3 to the first circuit board 11 and the second circuit board 12 by broadcast transmission. Next, the data writing device 2 simultaneously transmits the data B stored in the internal memory 3 to the third circuit board 13 and the fourth circuit board 14 by broadcast transmission. In this embodiment, data transmission processing from the data writing device 2 to the first circuit board 11 and the second circuit board 12 is performed, and data transmission from the data writing device 2 to the third circuit board 13 and the fourth circuit board 14 is performed. It may be performed after the transmission process.

  In the data transmission operation between the data writing device 2 and the plurality of circuit boards, the CPU 5 in the data writing device 2 stores, for example, the type of data and the destination of the data stored in the memory 3 in the data writing device 2. With reference to a transmission correspondence table that defines a correspondence relationship with information on circuit boards (such as serial numbers of memories in each circuit board), predetermined data is transmitted to the corresponding circuit board.

  Then, the CPU in the circuit unit provided on each circuit board writes the received data (data A or data B) in the memory in its own circuit unit. As a result, as shown in FIG. 5, data A is written in each memory in the circuit section provided on the first circuit board 11 and the second circuit board 12, and the third circuit board 13 and the fourth circuit board 14 are written. Data B is written in each memory in the circuit portion provided in the circuit.

  In the data writing operation example 2, the combination of the circuit board and the type of data to be written is not limited to the example shown in FIG. 5 and can be arbitrarily set. For example, data B is written in each memory in the first circuit board 11 and the second circuit board 12, and data A is written in each memory in the third circuit board 13 and the fourth circuit board 14. It may be. Further, for example, in any one of the first circuit board 11 to the fourth circuit board 14, as in the data write operation example 1, all the data stored in the memory 3 in the data writing device 2 ( Data A and data B) may be written.

  Furthermore, in the data writing operation example 2, the same data is simultaneously transmitted from the data writing device 2 to the first circuit board 11 and the second circuit board 12, or the third circuit board 13 and the fourth circuit board 14 by broadcast transmission. Although the example to do was demonstrated, this invention is not limited to this. For example, data may be transmitted from the data writing device 2 to each circuit board in a predetermined order.

(3) Data write operation example 3
Next, a data write operation example 3 performed by the data write system 1 in the circuit board programming process will be described with reference to FIGS. 6A and 6B. 6A and 6B are diagrams illustrating an operation state of the data writing system 1 in the data writing operation example 3. FIG.

  In the data writing operation example 3, the type of data transmitted from the data writing device 2 is changed for each circuit board, and the received data is mutually transmitted and received between the circuit boards, so that the memory 3 in the data writing device 2 An example of the operation of writing all data stored in the memory in each circuit board will be described. In this example, as shown in FIGS. 6A and 6B, an example will be described in which four data of data A to data D are stored in the memory 3 in the data writing device 2.

  The data A to data D stored in the memory 3 in the data writing device 2 may be independent (unrelated) data, or each of the data A to data D is a piece of data. It may be data. In the latter case, after the mutual data transmission / reception processing between the circuit boards is completed, one data consisting of data A to data D is completed in the memory in each circuit board.

  In the data writing operation example 3, first, as shown in FIG. 6A, the data writing device 2 receives the data A to data D stored in the memory 3 inside thereof as the first circuit board 11 to the fourth circuit board, respectively. 14 to send.

  In this transmission operation, the CPU 5 in the data writing device 2, for example, stores information on the data type and destination circuit board stored in the memory 3 in the data writing device 2 (serial number of the memory in each circuit board). , Etc.) is referred to, and predetermined data is transmitted to the corresponding circuit board. At this time, the data transmission order from the data writing device 2 to each circuit board can be arbitrarily set.

  Next, the CPU in the circuit unit provided on each circuit board writes the predetermined data received from the data writing device 2 to the memory in its own circuit unit. As a result, at the end of data transmission / reception processing between the data writing device 2 and the plurality of circuit boards, as shown in FIG. 6A, the data A is written into the memory in the first circuit board 11, and the second Data B is written in the memory in the circuit board 12, data C is written in the memory in the third circuit board 13, and data D is written in the memory in the fourth circuit board 14. Generated.

  Thereafter, as shown in FIG. 6B, the data received between the circuit boards is transmitted and received. Specifically, the first circuit board 11 transmits data A to each of the second circuit board 12, the third circuit board 13, and the fourth circuit board 14. The second circuit board 12 transmits data B to each of the first circuit board 11, the third circuit board 13, and the fourth circuit board 14. The third circuit board 13 transmits data C to each of the first circuit board 11, the second circuit board 12, and the fourth circuit board 14. Further, the fourth circuit board 14 transmits data D to each of the first circuit board 11, the second circuit board 12, and the third circuit board 13. In the data write operation example 3, broadcast transmission is performed between the predetermined circuit board and the other three circuit boards, and the same data is simultaneously transmitted from the predetermined circuit board to the other three circuit boards. The

  Then, the CPU in each circuit board writes the received various data in the memory in its circuit unit. As a result, after the mutual data transmission / reception processing between the circuit boards is completed, as shown in FIG. 6B, all data (data A to data D) stored in the memory 3 in the data writing device 2 are stored. , Written in the memory in each circuit board.

  The data transmission form in the data write operation example 3 is not limited to the example shown in FIGS. 6A and 6B. For example, the combination of the type of circuit board and the type of data transmitted from the data writing device 2 to the circuit board is not limited to the example shown in FIG. 6A and can be arbitrarily set. In this example, the example in which the type of data transmitted from the data writing device 2 to each circuit board is one has been described. However, the configuration is such that two or three types of data are transmitted to a predetermined circuit board. It may be.

  In this example, in data communication between circuit boards, data is transmitted from a predetermined circuit board to all other circuit boards, and all data stored in the memory 3 in the data writing device 2 ( Although the example in which the data A to data D) is written in the memory in each circuit board has been described, the present invention is not limited to this. In data communication between circuit boards, data may be transmitted only from a predetermined circuit board to a specific other circuit board, and the type of data written to the memory may be different for each circuit board.

  For example, data A and data B are written in the memories of the first circuit board 11 and the second circuit board 12, and data C and data D are written in the memories of the third circuit board 13 and the fourth circuit board 14, respectively. May be written. In this case, when data is transmitted and received between the circuit boards, the first circuit board 11 transmits the data A only to the second circuit board 12, and the second circuit board 12 is the first circuit board. Only data 11 needs to be transmitted. In this case, the third circuit board 13 may transmit the data C only to the fourth circuit board 14, and the fourth circuit board 14 may transmit the data D only to the third circuit board 13.

  In this case, data to be written in the memory can be changed for each circuit board, and even when a plurality of types of circuit boards having different uses are included in the plurality of circuit boards, it can be dealt with.

[Data writing system write processing]
Next, with reference to FIG. 7, a processing procedure when performing various data write operations by the data write system 1 of the present embodiment described above will be described in more detail. FIG. 7 is a flowchart showing a procedure of data writing processing to a plurality of circuit boards by the data writing system 1.

  Further, in the present embodiment, during the data write operation to the memory in each circuit board, the power for driving each CPU in the data writing device 2 and each circuit board is supplied to the data writing system 1 as described above. Supplied. With this power supply, an execution program for data write processing stored in advance in a memory in each circuit board is activated, and various processing described below is executed.

  In the data writing system 1 of the present embodiment, in the circuit board programming step, first, the CPU 5 in the data writing device 2 stores the circuit unit provided in each circuit board in the memory 3 in the data writing device 2. The stored predetermined data is transmitted by wireless communication (step S1). At this time, communication is performed between the wireless communication unit 4 in the data writing device 2 and the wireless communication unit in the circuit unit provided in each circuit board.

  At this time, in the above-described data writing operation example 1 (see FIG. 4), the CPU 5 in the data writing device 2 transmits all data stored in the memory 3 in the data writing device 2 to each circuit board. On the other hand, in the above-described data write operation example 2 (see FIG. 5) or data write operation example 3 (see FIGS. 6A and 6B), the CPU 5 in the data write device 2 is stored in the memory 3 in the data write device 2. Corresponding predetermined data is transmitted for each circuit board from the various data.

  Next, the CPU in the circuit unit provided on each circuit board receives data from the data writing device 2 by wireless communication, and writes the received data in the memory in its own circuit unit (step S2).

  Next, the CPU in each circuit board that has completed the data writing process in step S2 determines whether or not it is necessary to transmit and receive data between the circuit boards by wireless communication (step S3). Specifically, the CPU in the circuit unit provided in each circuit board is based on information (corresponding table, command, etc.) included in the data written in the memory in the circuit unit. It is determined whether or not it is necessary to transmit the data written to the other circuit board.

  When it is determined in step S3 that the CPUs in the circuit units provided on the circuit boards do not need to transmit / receive data to / from each other (step S3 is NO), that is, for example, a data write operation When the form is the form of the data write operation example 1 (see FIG. 4) or the data write operation example 2 (see FIG. 5), the CPU in each circuit board ends the data write process. .

  On the other hand, when it is determined in step S3 that the CPUs in the circuit units provided on the circuit boards need to transmit / receive data to / from each other (when step S3 is YES), for example, the data When the write operation is the data write operation example 3 (see FIGS. 6A and 6B), the CPU in each circuit board transmits the received data to another circuit board by wireless communication. At the same time, data transmitted from another circuit board is received (step S4).

  Next, the CPU in the circuit unit provided in each circuit board writes the data received from the other circuit board into the memory in its own circuit unit (step S5). Thereafter, the CPU in each circuit board ends the data writing process. In the data writing system 1 of the present embodiment, data writing processing is performed on a plurality of circuit boards as described above.

  In the data writing system 1 and the data writing method thereof according to the present embodiment described above, data is transmitted from the data writing device 2 to a plurality of circuit boards by wireless communication, and thereafter, predetermined data is stored in a memory in a circuit unit provided in each circuit board. Data is written. That is, in the present embodiment, unlike the prior art, it is not necessary to individually connect the data writing device to the circuit board via the dedicated mounting jig to perform the data writing operation. Therefore, in this embodiment, the work efficiency of the circuit board programming process can be improved, and the production efficiency of the circuit board can be further improved.

  In this embodiment, in the data write operation example 3 shown in FIGS. 6A and 6B, when various data are transmitted from the data writing device 2 to the corresponding circuit boards, data is transmitted and received between the circuit boards. During the period of execution, the data writing device 2 can start the next data transmission operation. Therefore, in this embodiment, the occupation time of the data writing apparatus 2 for one circuit board can be shortened. In this case, for example, even when the data writing system 1 includes a plurality of types of circuit boards, the efficiency of the data writing process can be improved.

  In the present embodiment, the data writing device 2 has a broadcast transmission function, and can simultaneously transmit the same data from the data writing device 2 to a plurality of circuit boards. Therefore, in this embodiment, it is possible to further improve the work efficiency of the process of writing data to a plurality of circuit boards.

  Furthermore, in this embodiment, a dedicated attachment jig for directly attaching the data writing device 2 to the circuit board is not required. Therefore, in this embodiment, it is possible to reduce the manufacturing cost of the dedicated mounting jig, the replacement cost of the mounting jig due to wear of the connection terminals of the mounting jig, and the circuit board can be manufactured at a lower cost.

<Various modifications>
The data writing system and the data writing method according to the present invention are not limited to the examples described in the above embodiment. Various other modifications are also included in the present invention without departing from the gist of the present invention described in the claims. For example, the following various modifications are also included in the present invention.

[Modification 1]
In the data writing system 1 of the above embodiment, the example in which the plurality of circuit boards are provided as separate bodies has been described, but the present invention is not limited to this. For example, a plurality of circuit boards may be provided on a single collective circuit board.

  An example is shown in FIG. FIG. 8 is a schematic configuration diagram of a data writing system according to the first modification. In the data writing system 30 shown in FIG. 8, the same components as those in the data writing system 1 (see FIG. 1) of the above-described embodiment are denoted by the same reference numerals, and description of those components is omitted.

  The data writing system 30 of Modification 1 includes a collective circuit board 31 on which a plurality of circuit boards (first circuit board 11 to fourth circuit board 14) are mounted, and the data writing device 2. The data writing device 2 is disposed at a position where wireless communication is possible with respect to each circuit board in the collective circuit board 31.

  As shown in FIG. 8, the first circuit board 11 to the fourth circuit board 14 are provided on the collective circuit board 31. At this time, each circuit board is arranged in the collective circuit board 31 at a position where wireless communication is possible with respect to the other circuit boards.

  Although FIG. 8 shows an example in which four circuit boards are arranged on the collective circuit board 31 in a 2 (vertical) × 4 (horizontal) arrangement, the present invention is not limited to this. The number of circuit boards provided on the collective circuit board 31 is appropriately set according to conditions such as the size of the collective circuit board 31 and the size of the circuit board, for example. Further, the arrangement form of the first circuit board 11 to the fourth circuit board 14 is appropriately set according to conditions such as the size and shape of the collective circuit board 31 and the size and shape of each circuit board.

  In the example shown in FIG. 8, the first circuit board 11 to the fourth circuit board 14 are arranged on the collective circuit board 31 so as to be separated from each other by a predetermined distance. Further, although not shown in the area 31a between the circuit boards in the collective circuit board 31 and at the outer peripheral end of the collective circuit board 31, for example, a wiring pattern such as an inspection wiring, an alignment mark, a margin area between the circuit boards, etc. Is provided. That is, the region 31a is a portion that is finally discarded after each circuit board is separated from the collective circuit board 31. Therefore, in FIG. 8, this region 31a is referred to as “abandoned substrate portion 31a”.

  In the data writing system 30 of this example, the first circuit board 11 to the fourth circuit board 14 are provided on the collective circuit board 31 (the first circuit board 11 to the fourth circuit board 14 are integrally connected). Data) can be written in the (status). In this example, the first circuit board 11 to the fourth circuit board 14 may be separated from the collective circuit board 31 and then data may be written to each circuit board.

  Also in the data writing system 30 of this example described above, predetermined data can be written to the memory in the circuit section provided on each circuit board, in the same manner as in the above embodiment. Therefore, also in this example, the same effect as the above embodiment can be obtained.

  In this example, the example in which the discarded board portion 31a is provided on the collective circuit board 31 has been described, but the present invention is not limited to this. For example, a collective circuit board having a configuration in which a plurality of circuit boards are arranged in a predetermined form and the outer ends of the circuit boards facing each other are directly connected between adjacent circuit boards may be used. . That is, the configuration of the collective circuit board may be a structure that does not include the discard board part.

  As described in the first modification and the above embodiment, when the data writing system of the present invention is used, each of the plurality of circuit boards is mounted on the collective circuit board even if the circuit boards are separately manufactured. Whether the circuit board is a separate circuit board or a circuit board separated from the collective circuit board, data can be written to the memory in the circuit portion provided on the circuit board in the same manner. Therefore, in the data writing system and the data writing method of the present invention, there are few restrictions on the operation of the data writing process in the circuit board manufacturing process, for example, the relationship between the order of the data writing operation and other operations is changed. And can respond flexibly.

[Modification 2]
In the above embodiment, for example, the data writing system 1 having a configuration capable of executing all the data writing operations of the above-described data writing operation examples 1 to 3 (see FIGS. 4, 5 and 6A and 6B) has been described. The invention is not limited to this. In accordance with conditions such as the type of circuit board included in the data writing system, the configuration of the data writing system is configured so that only at least one data writing operation of data writing operation examples 1 to 3 can be executed. Also good.

  For example, the configuration of the data writing system may be configured such that the executable data writing operation is the data writing operation example 1 and / or the data writing operation example 2 (the configuration in which the data writing operation example 3 is not executed). In this case, since the mutual data transmission / reception processing performed between the circuit boards is not performed, the wireless communication unit in each circuit board only needs to have a data reception function.

  DESCRIPTION OF SYMBOLS 1,30 ... Data writing system, 2 ... Data writing device, 3,22 ... Memory, 4,23 ... Wireless communication part, 5,24 ... CPU, 11 ... 1st circuit board, 12 ... 2nd circuit board, 13 ... 3rd circuit board, 14 ... 4th circuit board, 20 ... Circuit part, 21 ... Function part, 31 ... Collective circuit board

Claims (7)

A plurality of circuit boards each having a wireless communication unit capable of receiving data including an initial program by wireless communication, a memory capable of writing the data, and a circuit unit including a data writing unit for writing the data to the memory;
A data writing system comprising: a data transmitting device that transmits the data to the plurality of circuit boards by wireless communication in the circuit board manufacturing process. The data writing system according to claim 1, wherein the data transmission device transmits predetermined data associated with each circuit board to each circuit board. The wireless communication unit in the circuit unit can communicate with other circuit boards in the plurality of circuit boards by wireless communication.
The circuit unit that has received the predetermined data from the data transmission device has completed the process of writing the predetermined data into the memory by the data writing unit in the circuit unit of the wireless communication unit in the circuit unit of the circuit unit. The data writing system according to claim 2, wherein the predetermined data is transmitted to a circuit unit in the other circuit board via a unit. The data writing system according to any one of claims 1 to 3, wherein the plurality of circuit boards are provided on a single collective circuit board. The data writing system according to any one of claims 1 to 4, wherein the data transmission device is capable of transmitting the data to the plurality of circuit boards by broadcast transmission. The data writing system according to any one of claims 1 to 5, wherein a communication method of the data in the data transmission device and the circuit unit is a short-range wireless communication method. In a circuit unit included in each circuit board by a data writing system including a plurality of circuit boards each including a circuit unit including a memory in which data can be written and a data transmission device that transmits data to the plurality of circuit boards A data writing method for writing data to the memory of
The data transmission device, in the manufacturing process of the circuit board, transmitting data including an initial program to the circuit unit in the circuit board by wireless communication;
A wireless communication unit provided in the circuit unit capable of wireless communication receives the data transmitted from the data transmission device;
A data writing method comprising: a data writing unit provided in the circuit unit writing the received data to the memory in its circuit unit.

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