JP2001189823A - Substrate inspecting method, host device and substrate mounting device for inspecting substrate, substrate inspection system, and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a substrate inspection system capable of inspecting the whole picture data transmitting and receiving function efficiently as for a facsimile control substrate which is not provided with an option interface for inspection without using a real device, a dedicated interface device and a computer system. SOLUTION: The substrate inspection system consists of a host device 10, a fixture device 30 having an inspection mode setting switch 32 and an analog communication line 50 for connecting both of the devices through a pseudo analog exchange 51. The device 10 has a data transmission and reception part 11 for transmitting and receiving data to/from a facsimile control substrate 100 and the computer device. The computer device has a hard disk 16c as a data storing part for storing data to be used for inspecting the substrate 100 and a CPU 16a as a deciding part for judging the performance of the whole data transmitting and receiving function of the substrate 100 based on the data from the substrate 100 received by the part 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board inspection method for inspecting a board having a data transmitting / receiving function attached to an electronic device such as a facsimile, a host apparatus for board inspection, a board mounting apparatus, a board inspection system, and the host. The present invention relates to a recording medium readable by an apparatus.

[0002]

2. Description of the Related Art Conventionally, this type of board inspection method includes:
There is a method using a facsimile (hereinafter, referred to as “actual FAX”) as an actual electronic device to which a facsimile control board as a substrate to be inspected is attached. For example, as shown in FIG.
Connected via the exchange 102, each real machine FAX 100, 1
There is a method of setting the test chart 103 to 01 and transmitting and receiving images of the test chart to each other. In this method, the operator performs a visual inspection to determine the image on the output paper 104 output from each of the actual machines FAX 100, 101, and the data transmission function of each facsimile control board attached to each of the actual machines FAX 100, 101 There is a method for determining whether the data receiving function is good or not. Also, as shown in FIG. 7, a FAX modem board (card)
The personal computer 106 equipped with the computer 105 is connected to the real machine FAX 100 via the exchange 102, the test chart 103 is set in the real machine FAX 100, the image data of the test chart is transmitted to the personal computer 106, and the test is performed from the personal computer 106. Convert chart image data to actual machine F
There is also a method of transmitting data to the AX 100 side. In this method, on the actual machine FAX 100 side, the operator determines the image on the output paper 104 by visual inspection. And personal computer 1
On the 06 side, an image is displayed on a CRT based on the image data received from the actual machine FAX 100, or a print sheet on which the image is printed is output from a printer. This CRT
The operator visually inspects the above image and the image on the print paper. These FAX 100 and PC 10
The visual inspection on the side 6 determines the quality of the data transmission function and the data reception function of the facsimile control board.

As a method not using the actual machine FAX, as shown in FIG. 8, a serial or parallel option interface (OPIF) unit for testing a facsimile control board 107 as a board to be inspected is provided with a dedicated interface device 108. And a facsimile control board 107 and a facsimile
A personal computer 106 equipped with a board (card) 105 is connected via an exchange 102, and both personal computers 106
There is a method of transmitting and receiving the image data of the test chart from 109. In this method, image data for inspection is transmitted from each of the personal computers 106 and 109. Then, in each of the personal computers 106 and 109, C
An image is displayed on the RT, or a print sheet on which the image is printed is output from a printer. The operator visually inspects the image on the CRT or the image on the print paper to judge whether or not the data transmission function and the data reception function of the facsimile control board are good.

[0004]

However, the above-mentioned conventional board inspection method using an actual machine FAX has a problem that a complicated operation of incorporating a facsimile control board to be inspected into the actual machine FAX is required.

The conventional facsimile control board 1
In the method using the optional interface unit for inspecting a substrate, the optional interface (OP
It is not possible to inspect a facsimile control board without an IF) unit, and it is necessary to prepare a dedicated interface device for connecting the facsimile control board to a personal computer for each type of facsimile control board. There was a problem.

It is to be noted that there is a problem that a complicated operation for incorporating the substrate to be inspected into an electronic device (hereinafter, referred to as an "actual device") in which the substrate to be inspected is actually incorporated, and an optional interface unit for inspecting the substrate. It is not possible to inspect a board that does not have a board, or it is necessary to prepare a dedicated interface device or computer device directly connected to the board to be inspected in order to confirm image data received by the board to be inspected The problem of not only performing the inspection of the facsimile control board but also the same problem can occur if the board to be inspected has a data transmission / reception function.

In each of the above-described conventional board inspection methods, the data transmission function and the data reception function of the board to be inspected are separately inspected, so that the inspection work is complicated. The present inventor does not need to separately inspect the data transmission function and the data reception function of the inspected board from the viewpoint of discriminating a non-defective product and a defective product of the inspected substrate. If at least one of the functions is not normal, the inspected board may be treated as a defective product.
Attention was paid to the fact that it is preferable to collectively inspect the data transmission / reception function combining the data transmission function and the data reception function from the viewpoint of improving the efficiency of the inspection operation.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a real machine which involves complicated assembling work of a board to be inspected, a dedicated interface device directly connected to the board to be inspected, and a computer device Without using an inspection option interface, a board inspection method capable of efficiently inspecting the entire data transmission / reception function even for a substrate to be inspected, a host device for substrate inspection and a substrate mounting device, a substrate inspection system, Another object of the present invention is to provide a recording medium readable by the host device.

[0009]

According to a first aspect of the present invention, there is provided a substrate inspection method for inspecting a substrate having a data transmission / reception function, wherein an operation mode of a substrate to be inspected is changed from outside. When the data is received, the data is set in advance to be returned to the data transmission source, the data is transmitted to the substrate to be inspected, the data returned from the substrate to be inspected is received, and The quality of the data transmission / reception function of the substrate to be inspected is determined based on the received data.

In the above-described conventional board inspection method, data received by the board to be inspected is processed by an actual machine in which the board to be inspected is incorporated, and output to paper or the like in a form that can be identified by an operator. The data is taken into a computer device via an optional interface on the board and a dedicated interface device, and is displayed on a CRT in a form identifiable by an operator or printed by a printer. This image is visually inspected by an operator to determine the quality of the data receiving function of the substrate to be inspected. Then, when inspecting the data transmission function of the substrate to be inspected, the data is operated by operating an actual machine incorporating the substrate to be inspected or a computer connected to the substrate to be inspected via a dedicated interface device or the like. Send.

On the other hand, according to the board inspection method of the present invention, when data transmitted from the outside is received by the board to be inspected, the data received by the board to be inspected is transmitted to the actual machine or the computer. The data is returned to the external data transmission source without being processed by the apparatus and output to a sheet or the like in a form that can be identified by the operator. Since the returned data is processed by both the data receiving function and the data transmitting function of the inspection target board, by receiving the returned data, based on the received data, Pass / fail of the entire data transmission / reception function of the substrate to be inspected can be determined.

According to a second aspect of the present invention, in the board inspection method of the first aspect, when the data transmission / reception is performed on the reference substrate having a normal data transmission / reception function through the same data transmission path as that used when the inspection target substrate is inspected. The data returned from the reference board is stored in advance as reference data, the data returned from the board to be inspected is compared with the reference data, and the data is returned based on the result of the comparison. It is characterized in that the quality of the entire data transmission / reception function of the inspection board is determined.

In this board inspection method, the reference data returned from the reference board when the above-mentioned data is transmitted and received through the same data transmission path as that for the inspection of the board to be inspected with respect to the reference board is used as the reference data. In addition to the characteristics of the normal data transmission function of the board, the characteristics of the data transmission path through which the data is transmitted are affected. The reference substrate and the substrate to be inspected are exchanged, and the data is transmitted and received for the substrate to be inspected. Since the received data returned from the board to be inspected is affected by the same data transmission path as the reference data, the data received from the board to be inspected is compared with the reference data to obtain the data of the board to be inspected. The difference between the data transmission / reception function and the data transmission / reception function of the reference substrate can be seen. Therefore, based on the result of this comparison, it is possible to determine the quality of the entire data transmission / reception function of the test board excluding the influence of the transmission path.

According to a third aspect of the present invention, in the substrate inspection method of the first aspect, the data returned from the inspected substrate and an error in the data transmission function of the inspected substrate transmitted from the inspected substrate. Receiving at least one of the information and the error information of the data receiving function, and judging the quality of the entire data transmitting and receiving function of the inspection target board based on the received data and the error information. .

According to this board inspection method, when an error occurs in the data transmission / reception function of the board to be inspected, the error information can be obtained. Therefore, a more detailed pass / fail judgment of the entire data transmission / reception function of the board to be inspected can be obtained. Becomes possible.

According to a fourth aspect of the present invention, in the board inspection method of the first aspect, an elapsed time from a start of data transmission to the substrate to be inspected is measured, and the data is returned within a predetermined time from the start of data transmission. If not, it is determined that the data transmission / reception function of the substrate to be inspected is stopped.

In this board inspection method, when the data is not returned within a predetermined time from the start of data transmission to the board, it is determined that the data transmission / reception function of the board is stopped. Based on the result of the determination, it is possible to stop the quality determination of the entire data transmission / reception function of the test substrate based on the result of the comparison.

According to a fifth aspect of the present invention, in the substrate inspection method of the first, second, third or fourth aspect, the substrate to be inspected is a facsimile control substrate.

In this board inspection method, image data is transmitted and received as a facsimile signal to and from a facsimile control board which is a board to be inspected. Then, the facsimile signal returned from the facsimile control board is received as image data, and the quality of the entire image data transmission / reception function of the facsimile control board is determined based on the received image data.

According to a sixth aspect of the present invention, there is provided a host device for inspecting a substrate used in a substrate inspection system for inspecting a substrate having a data transmission / reception function, comprising: a data transmission / reception unit for transmitting / receiving data to / from a substrate to be inspected; A data storage unit for storing data used for inspection of the substrate to be inspected, and determining whether or not the entire data transmission / reception function of the substrate to be inspected is acceptable based on data from the substrate to be inspected received by the data transmission / reception unit And a unit.

In this board inspection host device, the data stored in the data storage section is transmitted to the board to be inspected by the data transmission / reception section. The data received by the board to be inspected is processed by an actual machine and output to a sheet or the like in a form that can be identified by an operator, or is taken into a computer device, and
The data is returned to the data transmission / reception unit of the host device without being output to an RT or a printer. The data returned from the substrate to be inspected is received by the data transmission / reception unit and stored in the data storage unit. The determination unit determines pass / fail of the entire data transmission / reception function of the test substrate based on the reception data stored in the data storage unit.

According to a seventh aspect of the present invention, in the host device for inspecting a substrate according to the sixth aspect, the data transmitting / receiving section is configured using a circuit capable of transmitting and receiving data in all communication standards used for the substrate to be inspected. It is characterized by the following.

In this board inspection host device, since the circuit constituting the data transmission / reception section can transmit and receive data according to all communication standards used for the board to be inspected, all circuits used for the board to be inspected can be transmitted and received. With respect to the standard, the data transmission / reception function of the inspected substrate can be inspected by transmitting / receiving the data.

According to an eighth aspect of the present invention, in the board inspection host device of the sixth aspect, data transmission and reception are performed on the reference substrate having a normal data transmission / reception function through the same data transmission path as when the inspection target substrate is inspected. The data returned from the reference board at the time of saving is stored as reference data in the data storage unit, and the determination unit compares the data returned from the board to be inspected with the reference data. The quality of the whole data transmission / reception function of the substrate to be inspected is determined based on the result of the comparison.

In this board inspection host device, the reference data stored in the data storage unit is influenced by the characteristics of the normal data transmission function of the reference substrate and the characteristics of the data transmission path through which the data is transmitted. Is receiving.
The reference substrate and the substrate to be inspected are exchanged, and the data is transmitted and received for the substrate to be inspected. Since the received data returned from the board to be inspected is affected by the same data transmission path as the reference data, the data received from the board to be inspected is compared with the reference data to obtain the data of the board to be inspected. The difference between the data transmission / reception function and the data transmission / reception function of the reference substrate can be seen. Therefore, in the determination unit, it is possible to determine the quality of the entire data transmission / reception function of the board under test, excluding the influence of the transmission path, based on the result of the comparison.

According to a ninth aspect of the present invention, in the host apparatus for inspecting a substrate according to the sixth aspect, the data transmission / reception section transmits the data transmitted from the inspected substrate together with the data returned from the inspected substrate. It is configured to receive at least one of the error information of the data transmission function and the error information of the data reception function of the substrate to be inspected, and the determining unit performs the inspection on the substrate to be inspected based on the received data and the error information. The quality of the entire data transmission / reception function is determined.

In this board inspection host device, when an error occurs in the data transmission / reception function of the substrate to be inspected, the error information can be received and acquired by the data transmission / reception section. More detailed pass / fail judgment of the entire data transmission / reception function can be performed.

According to a tenth aspect of the present invention, in the host apparatus for inspecting a substrate of the sixth aspect, a time measuring unit for measuring an elapsed time from the start of data transmission to the substrate to be inspected is provided. When the data is not returned within a predetermined time from the start of data transmission, the data transmission / reception function of the substrate to be inspected is determined to be stopped.

In this board inspection host device, the time measuring section measures the elapsed time from the start of data transmission to the board to be inspected. When the data is not returned within a predetermined time from the start of data transmission to the test board, the determination unit determines that the data transmission / reception function of the test board is stopped. Based on the result of the determination, it is possible to stop the quality determination of the entire data transmission / reception function of the test substrate based on the result of the comparison.

The invention of claim 11 provides claims 6, 7, 8,
In the host device for inspecting a substrate according to the ninth or tenth aspect, the substrate to be inspected is a facsimile control substrate.

In the board mounting apparatus for board inspection, the image data stored in the data storage section is transmitted as a facsimile signal to the facsimile control board, which is the board to be inspected, by the data transmitting / receiving section. The facsimile signal returned from the facsimile control board is received by the data transmission / reception unit as image data and stored in the data storage unit. Based on the received data in the data storage unit,
The quality of the facsimile control board is determined by a determination unit.

According to a twelfth aspect of the present invention, there is provided a board mounting apparatus for board inspection used in a board inspection system for inspecting a board having a data transmission / reception function, wherein a power supply electrode and a data input / output electrode on a board to be inspected are provided. A substrate mounting portion having a contact electrode terminal for contacting a terminal, and a power supply voltage supply portion for supplying a power supply voltage to the substrate to be inspected are provided.

In this board mounting device for board inspection,
When the substrate to be inspected is mounted on the substrate mounting portion, the contact electrode terminal on the substrate mounting portion contacts the power supply electrode and the data input / output electrode terminal on the substrate to be inspected. Then, a power supply voltage is supplied to the substrate to be inspected from the power supply voltage supply unit via the power supply electrode and the contact electrode terminal on the substrate mounting unit side. Further, data can be transmitted and received to and from the substrate to be inspected via the data input / output electrode terminals and the contact electrode terminals on the substrate mounting portion side.

According to a thirteenth aspect of the present invention, in the board mounting apparatus for a board inspection according to the twelfth aspect, the operation mode of the board to be inspected is changed when the data is received from the outside and the data is returned to the transmission source. Operation mode setting means for setting the operation mode.

In the board mounting apparatus for board inspection, after the board to be inspected is mounted on the board mounting section, the operation mode of the board to be inspected is set to the operation mode for board inspection by the operation mode setting means. By setting the operation mode, when the inspection target substrate receives data from the outside, the data is returned to the transmission source.

The invention of claim 14 is the invention of claim 12 or 13
In the above substrate mounting apparatus for inspecting a substrate, the substrate to be inspected is a facsimile control substrate.

In this board mounting apparatus for board inspection, when the facsimile control board is mounted on the board mounting section, the facsimile control board is connected to the facsimile control board via the power supply electrode and the contact electrode terminal on the board mounting section side. A power supply voltage is supplied to the board, and data can be transmitted and received to and from the facsimile control board via the data input / output electrode terminals and the contact electrode terminals on the board mounting portion side.

According to a fifteenth aspect of the present invention,
A host device for inspecting a substrate according to claim 9 or 10, a substrate mounting device for inspecting a substrate according to claim 12 or 13, and an electric communication line connecting the host device and the substrate mounting device. Is what you do.

In this board inspection system, data is transmitted from the host apparatus to the board to be inspected mounted on the substrate mounting apparatus via an electric communication line. The data received by the board to be inspected is processed by the actual machine and returned to the host device via a telecommunication line without being output on paper or the like in a form identifiable by the operator or taken into the computer device. Is done. The data returned from the board to be inspected is received by the data transmission / reception unit of the host device and stored in the data storage unit. The determination unit of the host device determines pass / fail of the entire data transmission / reception function of the test substrate based on the reception data stored in the data storage unit.

According to a sixteenth aspect of the present invention, in the substrate inspection system of the fifteenth aspect, the substrate to be inspected is a facsimile control substrate.

In this board inspection system, image data is transmitted and received as facsimile signals from the host device to a facsimile control board, which is a board to be inspected, mounted on the substrate mounting apparatus. Then, the host device receives the facsimile signal returned from the facsimile control board as an image signal, and determines the quality of the facsimile control board based on the received data.

The invention of claim 17 is based on claims 6, 7, 8,
A host device for inspecting a substrate, which is configured to execute a data transmission / reception procedure in the data transmission / reception unit, a data writing / reading procedure in the data storage unit, and a determination procedure in the determination unit. A recording medium on which a program is recorded and which can be read by the host device.

The host device reads out the program stored in the recording medium, and executes the program to transmit and receive data in the data transmission / reception unit, and write and read data in and from the data storage unit. The determination unit can determine whether the entire data transmission / reception function of the substrate to be inspected is good or bad.

[0044]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a board inspection system for inspecting a data transmission / reception function of a facsimile control board used in a facsimile apparatus as an electronic communication device will be described below. FIG. 1 is a block diagram showing a schematic configuration of a board inspection system according to the present embodiment. FIG. 2 shows a facsimile control board 1 which is a board to be inspected.
FIG. 3 is a block diagram showing a schematic configuration in a facsimile apparatus having a substrate inspection system 00, and FIG. 3 is an external view of the board inspection system.

The facsimile apparatus shown in FIG. 2 has a facsimile control board (FCU board) 100
, An image reading unit 120, an input / output operation unit 130, and a printing unit 140. Facsimile control board 1
00 is a CPU engine, system ROM, DRAM,
SRAM, modem, DTMF (Dial Tone Multi Freq
uency) tone receiver, AFE (analog front end) unit, NCU (network control unit), and the like. The CPU engine,
DSP (Digital Signal Processor), DCR (DataCo
mpressor Reconstructor), DMA (Direct Memory Ac)
cess) etc. function as a facsimile engine. The system ROM stores firmware for controlling the entire facsimile hardware. The DRAM is a memory backed up by a secondary battery used for a working RAM, an ECM buffer, a page memory, an image storage and a buffer memory, and the like. The SRAM is a memory backed up by a primary battery used for holding registered data. The modem unit performs a process of generating a facsimile signal by modulating a reference signal based on image data and a process of demodulating image data from the facsimile signal, and is a G3 standard (V34 / V33) which is a facsimile communication standard. / V29 / V27
/ V17). The DTMF tone receiver performs a process of receiving and identifying a dial tone signal. The AFE (analog front end) section includes a filter circuit around the modem section, a monitor speaker driving circuit, a 2-line / 4-line switching circuit for telephone line signals,
An analog circuit such as an ITONE switching function circuit is included. The NCU is an interface for controlling a facsimile signal between the AFE (analog front end) unit and a telephone line.

The image reading unit 120 includes an interface for an SBU (sensor servo unit), a gain amplifier, a DC reproduction circuit, a D / A (digital / analog) conversion processing circuit, a scanner driving driver, a light source lighting driver, and the like. In. The input / output operation unit 130 includes a man-machine interface such as an operation panel, drivers such as various sensors and stamps, an external option interface, an additional memory, and the like. Printing section 140
Includes a printing system motor driver, a light source LD (semiconductor laser), a processing unit for serial data sent to a heating member, and the like.

The substrate inspection system shown in FIG. 1 includes a host device 10 and a fixture device 30 as a substrate mounting device.
And a telecommunication line (analog communication line) 50 for connecting the host device 10 and the fixture device 30 via a pseudo analog switch 51. The host device 10 includes a data transmission / reception unit 11 and a computer device. The data transmission / reception unit 11 includes an inspection facsimile control board (FCU board) 12 equivalent to a board to be inspected having a network control unit (NCU), a power supply unit (PSU) 13, a serial interface 14, and a network interface for LAN. 15 is provided. The inspection facsimile control board 12 also supports the super G3 standard (G3-V34 standard) which is a facsimile communication standard.

The computer of the host device 10 includes a personal computer main body 16, a CRT 17, a keyboard 18,
It is composed of a mouse or the like (not shown). The personal computer body 16 includes a CPU 16a, a ROM 16b, a RAM, a hard disk 16c as a data storage unit for storing data used for inspection, a serial interface 16d,
LAN card 16e, CD-ROM drive 16f, F
It has a D drive 16g and the like. The ROM 16b stores a BIOS program. The hard disk 16c has a program of basic software (OS), a program of application software for board inspection provided on a recording medium such as an FD or a CD-ROM,
Reference image data file (master FILE) used for board inspection, transmitted image data file (TX
FILE), the received image data file (RX F
ILE) is stored and read out to a RAM or the like as necessary. The application software for board inspection is
Image file management function on hard disk,
This software has a bitmap conversion function of image data, a function of determining image data, and the like. Further, the CPU 16a
Functions as a determination unit that determines the quality of the entire data transmission / reception function of the facsimile control board 100 based on the image data received by the data transmission / reception unit 11. The personal computer body 16 and the data transmission / reception unit 11 are connected by a serial interface cable 19 and a LAN cable 2 via a hub device (HUB) 20.
1 is connected. Thus, the image data transmitted and received in the board inspection can be transferred between the personal computer main body 16 and the data transmission / reception unit 11 via a serial interface or a network interface.

FIG. 4A is a perspective view showing the appearance of the fixture device 30 on which the facsimile control board 100 is mounted, and FIG. 4B shows the fixture device 30 when the cover 311 is opened. It is a perspective view of. The facsimile control board 10 to be inspected is
When attaching 0, a cover 311 made of an acrylic material is used.
The cover 311 is opened from the near side by holding the handle 311a, and the elevating lever 312 is rotated so as to lift in the direction of arrow A, so that the contact pins are raised as the contact electrode terminals to be brought into contact with the electrode terminals of the facsimile control board 100.

In FIG. 4B, the fixture device 3
A contact pin guide plate 314 made of a glass epoxy material is attached to a central portion of the substrate mounting surface 313 of No. 0. At a predetermined position of the contact pin guide plate 314, a through hole 314a through which a contact pin that rises in accordance with the rotation of the elevating lever 312 in the direction of arrow B can penetrate.
Are formed.

The contact pin guide plates 314-2
A guide pin 316 that engages with the engagement hole of the facsimile control board 100 is provided at one corner. When mounting the facsimile control board 100,
The guide pins 316 are engaged with the engagement holes on the substrate 100 side even if the horizontal position of the
Positioning the electrode terminal of the substrate 100 and the contact pin of the fixture device 30 can be reliably performed by guiding the position of the substrate 100 to a predetermined position. Also,
At positions adjacent to the four corners of the contact pin guide plate 314, board guide members 315 for guiding the four corners of the facsimile control board 100 are attached.

A pressing member 311b for pressing the facsimile control board 100 mounted on the contact pin guide plate 314 toward the contact pin guide plate 314 is attached to the inner surface of the cover 311.

In the fixture device 30,
Power supply unit (PSU) 31 as a power supply voltage supply unit for supplying a power supply voltage to facsimile control board 100
Etc. are attached. Also, the fixture device 30
The inspection mode setting switch 32 as the operation mode setting means is provided on the front panel
Is provided. This inspection mode setting switch 32
Is for setting the operation mode of the facsimile control board 100 to an operation mode for board inspection in which when data is received from the outside, the data is returned to the transmission source.

When the facsimile control board 100 is mounted on the fixture device 30 having the above-described configuration and the function test is started, the facsimile control board 100 is placed on the contact pin guide plate 314 with the cover 311 opened.
By rotating the elevating lever 312 in the direction of arrow B in FIG. 4B, the contact pin is raised and the cover 311 is closed. Then, while the pressing member 311b of the cover 311 presses the facsimile control board 100 and the electrode terminals of the board 100 and the contact pins of the fixture device 30 are securely in contact with each other, the inspection mode setting switch 32 is pressed, Start button 317
Press to start function test.

FIG. 5 is a flowchart showing a procedure for inspecting the data transmission / reception function of the facsimile control board 100 using the above-configured board inspection system. First, as described above, the facsimile control board 10 to be inspected is
0 is set in the fixture device 30, and after pressing the test mode setting switch 32, the start button 317 is pressed to start the function test. When the host device receives the image data as a facsimile signal (analog signal), the facsimile which is the substrate to be tested is used. It is transmitted to the control board 100 (step 1). This transmission facsimile signal is transmitted through the pseudo-analog switch 51 and received by the facsimile control board 100 on the fixture device 30.
The image data is temporarily stored as image data in a memory in the memory 0 (step 2). Next, the facsimile control board 100 returns the image data stored in the memory to the host device 10 (Step 3). The host device 10 compares the received image data (bitmap image) with the reference data (bitmap image) stored on the hard disk on a bit-by-bit basis, and counts the number of matching bits and the number of mismatching bits. The number of unmatched bits Nm is compared with a preset reference value Nref (step 4). Here, if the mismatch bit number Nm is equal to or smaller than the reference value Nref, the data transmission / reception function is normal and determined to be non-defective, the determination result is stored in the hard disk, and the non-defective item is displayed on the CRT (for example,
"OK" is displayed, and the inspection is terminated (steps 5 and 6). On the other hand, the number of mismatch bits Nm is equal to the reference value.
If the value is larger than Nref, the data transmission / reception function is abnormal and determined to be defective, the determination result is stored in the hard disk, and the fact that the product is defective is displayed on the CRT (for example, “NG”). (Step 5,
7). The facsimile control board 100 in which the entire data transmission / reception function is determined to be defective by the above inspection is sent to a step of performing more detailed inspection, and which of the data reception function and the data transmission function is abnormal is determined. A detailed inspection is performed to judge this.

In the inspection step shown in FIG. 5, when the number of mismatch bits Nm, which is the number of mismatch bits between the received image data and the reference data, exceeds the reference value Nref, the facsimile control board 100 Although it is determined that the data transmission / reception function is defective, the received image data and the reference data are compared for each and every bit, and if any one does not match, the facsimile control board 100 It may be determined that the data transmission / reception function is defective.

As described above, according to the present embodiment, since image data is directly transmitted to and received from the facsimile control board 100, the facsimile control board 100 can be used without using a facsimile apparatus in which the facsimile control board 100 is actually incorporated. The image data transmission / reception function can be inspected. Therefore, unlike the case of the inspection using the actual facsimile machine, it is possible to suppress the consumption of the paper and to perform the inspection of the data transmission / reception function stably because the visual inspection of the operator with much variation does not intervene. Can be. Further, it is not necessary to perform a complicated operation of incorporating the facsimile control board 100 to be inspected into the actual machine every time the inspection is performed.

Further, according to the present embodiment, since the data returned in the facsimile control board 100 is used, a dedicated interface device or a computer device directly connected to the facsimile control board side is prepared. Without this, the data transmission / reception function of the facsimile control board 100 can be inspected. Therefore,
The development of the dedicated interface device and the software for operating the interface device are not required.

Further, according to the present embodiment, the quality of the entire transmission / reception function of the facsimile control board 100 is checked by one transmission and reception of the image data by the host device. The facsimile control board 1 is compared with the case where the quality of the entire data transmission function and the quality of the data reception function are checked separately.
The quality of the entire data transmission / reception function of 00 can be efficiently determined.

In a conventional board inspection method using a personal computer equipped with a FAX board (card), a commercially available FA
Since the X board (card) does not support the super G3 standard (G3-V34 standard), which is a recent facsimile communication standard, the super G3 standard (G3-V3 standard) is used.
4) cannot be performed on the facsimile control board 100. On the other hand, in the present embodiment, all the communication standards (G3-V) used in the facsimile control board 100 including the super G3 standard (G3-V34 standard) are used.
Inspection facsimile control board (FCU board) that supports 34 / V33 / V29 / V27 / V17 standards
12 is used on the host device 10 side, the communication standard (G3-V34 / V33 / V29 / V27 / V17
Facsimile control board 100
Quality check of the entire data transmission / reception function can be performed.

In the above embodiment, the error information of the data transmission function and the error information of the data reception function of the board sent from the facsimile control board 100 together with the image data returned from the facsimile control board 100 are used. Of the facsimile control board 100 may be determined based on the received image data and the error information. This facsimile control board 10
The error information of the receiving function of 0 is sent to the host device side using the standard protocol at a timing when the substrate 100 is receiving image data or at a timing when the reception of the image data is completed. Further, the error information of the transmission function of the facsimile control board 100 is transmitted at the timing when the board 100 is returning the image data or when the return of the image data is completed. Sent to With this error information, a more detailed pass / fail determination of the entire data transmission / reception function of the facsimile control board 100 can be made.

In the above embodiment, the elapsed time from the start of data transmission to the facsimile control board 100 is measured by a computer as a time measuring unit of the host device, and a predetermined time (for example, If the data is not returned within 40 seconds), it is determined that the data transmission / reception function of the facsimile control board 100 is stopped. Based on the result of the determination, it is possible to stop the quality determination of the entire data transmission / reception function of the inspected substrate based on the result of the image data comparison, thereby avoiding unnecessary waiting time and improving the efficiency of the substrate inspection. be able to.

In the above-described embodiment, the board inspection system for inspecting the data transmission / reception function of the facsimile control board attached to the facsimile apparatus has been described. However, the present invention provides another data transmission / reception function such as a modem interface board for a personal computer. The present invention can also be applied to the case of inspecting a substrate having.

[0064]

According to the present invention, the data received by the board to be inspected is processed in an actual machine incorporating the board to be inspected or taken into a computer device connected to the board to be inspected. Instead, the data can be returned to the transmission source and used for testing the data transmission / reception function of the board to be tested. Therefore, without preparing the actual machine or preparing a dedicated interface device or computer device directly connected to the substrate to be inspected, the data transmission / reception function can be performed for the substrate to be inspected which does not have the optional interface for substrate inspection. The overall quality can be checked. In addition, the quality of the entire data transmission / reception function of the test substrate can be efficiently performed as compared with the case where the quality of the data transmission function of the test substrate and the quality of the data reception function are individually tested. effective.

In particular, according to the second and eighth aspects of the present invention, it is possible to determine the quality of the entire data transmission / reception function of the board to be inspected, excluding the influence of the characteristics of the data transmission path used for the board inspection.

In particular, according to the third and ninth aspects of the present invention, there is an effect that a more detailed pass / fail judgment of the entire data transmission / reception function of the board to be inspected can be made.

According to the fourth and tenth aspects of the present invention, when the data transmission / reception function of the board to be inspected is stopped,
Since the pass / fail judgment of the entire data transmission / reception function of the board to be inspected based on the result of the comparison can be stopped, there is an effect that unnecessary waiting time can be avoided and the board inspection can be performed more efficiently.

In particular, claims 5, 11, 14 and 16
According to the invention, there is an effect that the quality of the entire image data transmission / reception function of the facsimile control board can be determined.

In particular, according to the invention of claim 7, there is an effect that it is possible to judge whether or not the entire data transmission / reception function of the board to be inspected is good for all communication standards adopted for the board to be inspected.

In particular, according to the twelfth aspect of the present invention, by mounting the substrate to be inspected, the power supply voltage is supplied to the substrate to be inspected, and the effect of transmitting and receiving data to and from the substrate to be inspected becomes possible. is there.

According to the thirteenth aspect of the present invention, after the board to be inspected is mounted on the board mounting portion, the operation mode of the board to be inspected can be set to the operation mode for board inspection.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a board inspection system for a facsimile control board according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a schematic configuration in a facsimile apparatus having a facsimile control board.

FIG. 3 is an external view of the board inspection system.

FIG. 4A is a perspective view of a fixture device during a board inspection. (B) is a perspective view of the fixture device with a cover opened for substrate replacement.

FIG. 5 is a flowchart showing an inspection procedure of the facsimile control board.

FIG. 6 is an explanatory diagram of a method of inspecting a facsimile control board according to a conventional example.

FIG. 7 is an explanatory diagram of an inspection method of a facsimile control board according to another conventional example.

FIG. 8 is an explanatory diagram of a method of inspecting a facsimile control board according to still another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Host device 11 Data transmission / reception part 12 Inspection facsimile control board 13 Power supply unit 14 Serial interface 15 Network interface 16 Personal computer 17 CRT 18 Keyboard 30 Fixture device 31 Power supply unit 32 Inspection mode setting switch 50 Analog communication line 51 Analog pseudo switch 100 Facsimile control board (substrate to be inspected)

Claims (17)

[Claims] 1. A board inspection method for inspecting a board having a data transmission / reception function, wherein an operation mode of a board to be inspected is preset so that when data is received from outside, the data is returned to a data transmission source. In addition, transmitting data to the substrate to be inspected, receiving data returned from the substrate to be inspected, and judging whether the entire data transmission / reception function of the substrate to be inspected is good or not based on the received data. A substrate inspection method. 2. The board inspection method according to claim 1, wherein said reference board has a normal data transmission / reception function when said data transmission / reception is performed on the same data transmission path as in the inspection of said board to be inspected. The data returned from the board is stored in advance as reference data, the data returned from the board to be inspected is compared with the reference data, and the data of the board to be inspected is transmitted and received based on the result of the comparison. A board inspection method characterized by determining pass / fail of the entire function. 3. The board inspection method according to claim 1, wherein the data returned from the board to be inspected together with the error information and data reception function of the data transmission function of the board to be inspected sent from the board to be inspected. Receiving at least one of the above error information, and determining whether or not the entire data transmission / reception function of the inspection target board is good or not based on the received data and the error information. 4. The board inspection method according to claim 1, wherein an elapsed time from a start of data transmission to said board to be inspected is measured, and said data is not returned within a predetermined time from said start of data transmission. And determining that the data transmission / reception function of the substrate to be inspected is stopped. 5. The substrate inspection method according to claim 1, wherein the substrate to be inspected is a facsimile control substrate. 6. A board inspection host device used in a board inspection system for inspecting a board having a data transmission / reception function, comprising: a data transmission / reception unit for transmitting / receiving data to / from a substrate to be inspected; A data storage unit for storing data to be used for the inspection, and a judging unit for judging pass / fail of the entire data transmission / reception function of the board to be inspected based on data from the board to be inspected received by the data transmitting / receiving unit. A host device for inspecting a substrate, comprising: 7. The board inspection host device according to claim 6, wherein the data transmission / reception unit is configured using a circuit capable of transmitting / receiving data in all communication standards used for the substrate to be inspected. Host device for substrate inspection. 8. The board inspection host device according to claim 6, wherein when the reference board having a normal data transmission / reception function transmits / receives data through the same data transmission path as the inspection of the board to be inspected, the reference is performed. The data returned from the test board is stored in the data storage unit as reference data, and the determination unit compares the data returned from the board to be inspected with the reference data, and based on the result of the comparison. A host device for inspecting a substrate, wherein the host device determines whether or not the entire data transmission / reception function of the inspected substrate is good. 9. The board inspection host device according to claim 6, wherein the data transmission / reception unit transmits the data of the board to be inspected sent from the board to be inspected together with the data returned from the board to be inspected. The receiving unit is configured to receive at least one of the error information of the transmission function and the error information of the data reception function, and the determining unit performs the entire data transmission / reception function of the inspection target board based on the received data and the error information. A host device for inspecting a substrate, characterized in that the host device is configured to judge pass / fail. 10. The host device for inspecting a substrate according to claim 6, further comprising: a time measuring unit for measuring an elapsed time from a time point at which data transmission to the substrate to be inspected is started; A board inspection host device configured to determine that the data transmission / reception function of the board to be inspected is stopped when the data is not returned within a predetermined time. 11. The board inspection host apparatus according to claim 6, 7, 8, 9 or 10, wherein said board to be inspected is a facsimile control board. 12. A board mounting apparatus for board inspection used in a board inspection system for inspecting a board having a data transmission / reception function, wherein the contact is provided for contacting a power supply electrode and a data input / output electrode terminal on the board to be inspected. A substrate mounting apparatus for inspecting a substrate, comprising: a substrate mounting section having an electrode terminal; and a power supply voltage supply section for supplying a power supply voltage to the substrate to be inspected. 13. The board mounting apparatus for board inspection according to claim 12, wherein an operation mode of the board to be inspected is set to an operation mode for board inspection in which when receiving data from the outside, the data is returned to a transmission source. A substrate mounting apparatus for inspecting a substrate, comprising an operation mode setting means for performing the operation mode setting. 14. The board mounting apparatus for board inspection according to claim 12, wherein the board to be inspected is a facsimile control board. 15. The board inspection host device according to claim 6, 7, 8, 9 or 10, the board inspection device according to claim 12 or 13, the host device and the substrate installation device. A board inspection system, comprising: an electric communication line to be connected. 16. The board inspection system according to claim 15, wherein said board to be inspected is a facsimile control board. 17. A data transmission / reception procedure in the data transmission / reception section, and a data writing / reading procedure in the data storage section in the board inspection host device according to claim 6, 7, 8, 9, 10, or 11. And a recording medium readable by the host device, recording a program for causing the determination unit to execute the determination procedure.