JPH06331704A - Multi-input digital voltage decision unit - Google Patents

Abstract

PURPOSE:To provide a multi-input digital voltage decision unit in which the voltage is measured at each part of various types of printed board with no switching loss and fail parts are displayed along with fail voltage values. CONSTITUTION:The multi-input digital voltage decision unit comprises a data editor 2, a digital voltage deciding section 4 for comparing a set value received from the data editor 2 with an input data, a unit 3 for storing the set values and the comparison results, a section 5 for displaying fail parts and fail voltage values, and a magnetic recording medium 1 for recording the set values of the data editor 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inspection device for correctly determining the voltage of each part of a printed circuit board which constitutes various electric / electronic devices in a short time.

[0002]

2. Description of the Related Art A conventional multi-input analog voltage determination device 20
Is shown in FIG. Reference numeral 10 indicates an AND circuit.

The structure is such that the judgment result outputs of a large number of analog voltage judgment devices 11 that do not have a set value and judgment result storage function are combined by an AND circuit 10. If the determination result of all inputs is good, a good determination as the multi-input analog voltage determination device 20 is output at any time, and if even one determination result of all inputs is not good, the multi-input analog voltage determination device 20 fails. Is output at any time.

[0004]

However, in the conventional multi-input analog voltage judging device, it takes time to change the set values of a large number of analog voltage judging devices, and the voltage of each part of different electric / electronic equipment boards is inspected. Changing the setting value for this causes time loss.

In addition, when the multi-input analog voltage determination device determines a defect, a function for confirming which input voltage result is a defect and what the value of the defective voltage is. Therefore, it is difficult to identify the defective part.

Therefore, the device of the present invention is intended to provide a voltage determining device having a function of displaying a defective portion and a voltage value of the defective portion by eliminating a time loss due to a change of a set value.

[0007]

In order to solve the above-mentioned problems, a voltage judgment device of the present invention comprises a digital voltage judgment unit having a data communication function and a set value and judgment result storage function,
It is composed of a voltage determination unit, a data editor for performing data communication of set values, and a display unit. That is, the data editing machine sets a plurality of setting values for all inputs, and the digital voltage judging section having a data communication function and a set value / judgment result storage function is connected to the data editing machine via the data communication transmission line. Transfer the setting value from.

The transferred data is stored in a digital voltage judging section having a set value / judgment result storing function having a data communication function. The setting value is changed by calling an arbitrary one set value for all inputs from the set values for all inputs that have been transferred and saved. Therefore, if the set values for all multiple inputs have been transferred to the digital voltage judgment unit with the data communication function and the judgment result storage function in advance, it is possible to change the set values for all inputs arbitrarily. Since it is only necessary to call once, the time loss due to the setting value change will not occur.

When the multi-input digital voltage determination device determines that a defect has occurred, the digital voltage determination unit immediately refers to the set value / determination result storage to display that it is defective and, at the same time, displays the defect location. The display and the value of the defective voltage are displayed to confirm the defect and identify the defective portion.

[0010]

According to the present invention, with the above-described structure, time loss can be eliminated, and defects can be confirmed and defective portions can be identified.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

In FIG. 1, the input voltage of the voltage from the first input to the nth input is switched by a switching signal of the digital voltage determination section 4. The input voltage is encoded via the voltage input switch 7 and the analog / digital converter 6 and sent to the digital voltage determination unit 4. In the digital voltage determination unit 4, the encoded input voltage is compared with the set value (upper limit value, lower limit value) for the input, and if the input voltage is within the set value, it is determined as good and it is within the set value. If not, it is judged as defective. The judgment result and the input number are stored in the set value / judgment result storage 3. The above operation is executed from the first input to the nth input, and when the determination of the nth input is completed, the results from the first input to the nth input are ANDed, and the determination as the multi-input digital voltage determination device 9 is performed. The result is output.

After setting the set values with the data editor 2,
The data is recorded on the magnetic disk (magnetic recording medium) 1 and transferred to the digital voltage determination unit 4 via the data transmission path. The transferred data is stored in the set value / judgment result storage unit 3, and the set value for any one input is used as the judgment value.

When the determination result of the multi-input digital voltage determination device is defective, the input number and voltage value of the defective portion are displayed on the display unit 5.

[0015]

As described above, according to the present invention, the voltage of each part of different electric / electronic device boards can be instantly and accurately tested by the simple device configuration without causing the loss time due to the change of the set value. I can do it.

[Brief description of drawings]

FIG. 1 is a configuration block diagram of a multi-input digital voltage determination device according to an embodiment of the present invention.

FIG. 2 is a configuration block diagram of a conventional multi-input analog voltage device.

[Explanation of symbols]

 1 magnetic disk (magnetic recording medium) 2 data editor 3 set value / judgment result saver 4 digital voltage judgment unit 5 display unit 6 analog / digital converter 7 voltage input switcher 9 multi-input digital voltage judgment device

Claims (1)

[Claims] 1. A data editing machine, a digital voltage judging section for judging / comparing a set value sent from this data editing machine with inputted data, and a set value / judgment result storage for saving the set value and the judgment result. A multi-input digital voltage determining device comprising: a display unit, a display unit for displaying a defective portion and a defective voltage value, and a magnetic recording medium for recording the set value of the data editor.