JPH0547888A - System for detecting mismount of package group - Google Patents

Abstract

PURPOSE:To detect mismount of a package group with a simple mechanism by changing for every package the terminal position of signal where packages are series-connected in a device where package groups are mounted each by connectors on a back wiring board. CONSTITUTION:In a device where package groups are mounted each by connectors on a back wiring board, terminal numbers of input terminals of mount information ranging from a first package 11 to an Nth package 20 are made different. In the case where any different package is inserted or none is inserted, ground information 12 latched by the first package 11 is not transmitted to a monitor circuit 23, so that the monitor circuit 23 outputs package mount information 24. This process facilitates detection of mismount of package groups with no firm wares by devising connection of a back wiring board.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package group erroneous mounting detection method.

[0002]

2. Description of the Related Art Conventionally, this type of package group erroneous mounting detection method gives package type information for each package,
When the information collecting unit collects data from each package, the package mounting position is compared with the obtained package type.

[0003]

However, although the conventional package group erroneous mounting detection method is advantageous in terms of expandability, it always requires firmware, and therefore is applied to a simple device. , There was a problem in terms of cost.

Therefore, the present invention has been made in order to solve the above-mentioned conventional problems, and an object thereof is a package group error which can detect an erroneous mounting of the package group by a simple mechanism. It is to provide a mounting detection method.

[0005]

In order to achieve such an object, the package group erroneous mounting detection method according to the present invention is
In a device in which each package group is mounted on the back wiring board by a connector, a monitoring circuit that monitors the mounting state of the package and a package group that transfers mounting information to this monitoring circuit are connected in series. The information collecting line is provided, and the terminal positions of signals connected in series in each package are changed for each package.

[0006]

In the present invention, if the ground information taken in by the first package is not transmitted to the monitoring circuit through each package, the monitoring circuit outputs erroneous package information. become.

[0007]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 is a block diagram of a package group erroneous mounting detection circuit for explaining an embodiment of a package group erroneous mounting detection method according to the present invention. In the figure, the first package 11 takes in the ground information 12 for confirming the mounting from the terminal 13 into the package and outputs it to the terminal 14. The second package 15 takes the output of the terminal 14 of the first package 11 from the terminal 16 into the package and outputs it to the terminal 17. The Nth package 20 outputs the information output to the terminal 19 of the N-1th package 18 to the terminal 21.
It is taken into the package with and output to the terminal 22. The monitoring circuit 23 takes in the output of the terminal 22 of the Nth package 20 as mounting information.

At this time, from the first package 11 to the Nth package
By making the terminal numbers of the mounting information input terminals up to the 20th package 20 all different, among the packages from the 1st package 11 to the Nth package 20, If any one of the different packages is inserted, or if any of the packages is not inserted, the geographic information 12 acquired by the first package 11 is transmitted to the monitoring circuit 23. Therefore, the monitoring circuit 23 can output the package erroneous mounting information 24.

[0009]

As described above, according to the package group erroneous mounting detection method according to the present invention, the connection of the back wiring board is devised so that it can be easily carried out without having a firmware strike. An extremely excellent effect that the erroneous mounting of the package group can be detected is obtained.

[Brief description of drawings]

FIG. 1 is a block diagram of a package group erroneous mounting detection circuit for explaining an embodiment of a package group erroneous mounting detection method according to the present invention.

[Explanation of symbols]

 11 First Package 12 Ground Information 13 Terminals 14 Terminals 15 Second Package 16 Terminals 17 Terminals 18th N-1st Package 19 Terminals 20 Nth Package 21 Terminals 22 Terminals 23 Monitoring circuit 24 Mis-mounting information

Claims (1)

[Claims] 1. A monitoring circuit for monitoring a mounting state of a package in a package group erroneous mounting detection circuit, wherein each package group is mounted on a back wiring board by a connector, and the monitoring circuit. And an information collecting line for serially connecting the package group for transferring mounting information, and changing the terminal position of the serially connected signal in each package for each package. Package group erroneous mounting detection method.