JP2990502B2 - measuring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for easily locking and releasing set measurement conditions in a measuring apparatus.

[0002]

2. Description of the Related Art A measuring apparatus is usually provided with a measurement condition input operation section for inputting various measurement conditions, and an appropriate measurement condition for a measurement object is input and set from the measurement condition operation section. Perform a measurement.

However, for example, when measuring the transmission state of a signal line, an error rate measurement is often performed over a long time under the same measurement conditions using an error rate measuring device or the like.
When performing a long-term measurement under the same measurement conditions as described above, the measurer cannot always monitor the measurement device, and another person erroneously operates the operation unit of the measurement device,
The measurement conditions may be changed.

For this reason, the conventional measuring device has a lock state in which the operation of the measurement condition input operation unit is not received separately from the measurement condition input operation unit, and a lock key for releasing the lock state. I have.

A conventional measuring device often has a so-called remote function for performing measurement under measurement conditions set from an external device such as a computer. A measuring device having such a remote function often has a so-called remote function. A remote release key for releasing the remote state of the measurement device is provided separately from the measurement condition input operation unit and the lock key.

FIG. 9 shows a configuration of a conventional measuring apparatus 10 having a lock function and a remote function of an operation unit.

[0007] In FIG. 9, the measuring section 11 includes a connection terminal 1.
A specific measurement (for example, an error measurement for a line, various measurements for an electronic circuit, etc.) is performed on the DUT 1 connected via Oa. The measurement condition input operation unit 12
Is used to input measurement conditions (measurement time, measurement frequency, measurement pattern, etc.) performed by the measurement unit 11. The lock switching means 13 is operated by the measurement condition input operation unit every time the lock key 14 is operated. Twelve operations are alternately switched from one of a locked state in which operation is not accepted and a non-locked state in which operation is accepted.

[0008] The communication device 15 communicates with the external device 2 connected via the communication terminal 10b.
Command and measurement conditions sent from the server.

Until the communication device 15 receives the remote command, the local remote switching means 16 sets the measurement condition input from the measurement condition input operation portion 12 in the measurement portion 11, and the communication device 15 sets the remote command and the measurement command. When a condition is received, a lock state is set in which operation of the measurement condition input operation unit 12 is not accepted, the received measurement condition is set in the measurement unit 11, and when the communication device 15 receives a remote release command or Release key 17
Is operated, the measurement condition input operation unit 12 is returned to the state before receiving the remote command, and the measurement condition input from the measurement condition input operation unit 12 is changed to the measurement unit 1.
Set to 1.

FIG. 10 shows a state transition of the measuring apparatus 10 which changes according to a key operation and a reception command.

That is, the state A is the measurement condition input operation unit 12
This is a local unlocked state in which the measurement conditions of the measurement unit 11 are updated and set at any time according to the measurement conditions input from, and is a basic state of the measurement device.

When the lock key 14 is operated during the local unlocked state, the state shifts to the state B local lock state, the operation of the measurement condition input operation section 12 is not accepted, and the measurement section 11 is not operated before. The measurement is performed under the input measurement conditions. When the lock key 14 is operated during the local lock state, the state returns to the local unlock state of the state A, and the measurement condition of the measurement unit 11 can be updated by operating the measurement condition input operation unit 12.

When the communication device 15 receives a remote command during the local unlock state in the state A, the measurement condition input operation unit 12 is locked, and the measurement unit 11 performs measurement under the measurement condition received together with the remote command. The state shifts to the state C first remote lock state. Further, when the communication device 15 receives the remote command during the local lock state in the state B, the measurement condition input operation unit 12 is locked, and the measurement unit 11 performs the measurement in the measurement condition based on the measurement condition received together with the remote command. The state shifts to the remote lock state 2.

When the remote release command is received or the remote release key 17 is operated during the first remote lock state, the state returns to the state A local non-lock state, and during the second remote lock state. Remote release command is received or remote release key 1
When 7 is operated, the state returns to the state B local lock state.

[0015]

However, in the conventional measuring apparatus as described above, two independent keys must be selectively operated to switch the state of the measuring apparatus. In order to return from the remote lock state to the reference local non-lock state, two key operations are required in order of operating the remote release key 17 and then operating the lock key 14, and the operation becomes complicated. .

An object of the present invention is to solve this problem and to provide a measuring device that can easily switch the state of the device.

[0017]

In order to achieve the above object, a measuring apparatus according to the present invention comprises: a measuring section (25) for measuring an object to be measured based on set measurement conditions;
A measurement condition input operation unit (22a, 26, 31, 32) for inputting measurement conditions of the measurement unit; a communication unit (27) for receiving a command and a measurement condition transmitted from an external device; Lock switch means for alternately switching from one of a specific key (22b) to one of a locked state in which the input of the measurement condition by the operation of the measurement condition input operation unit is not accepted and a non-locked state in which the input is received each time the specific key is operated. (35) When the communication unit receives the first command and the measurement condition, the received measurement condition is set in the measurement unit instead of the measurement condition input from the measurement condition input operation unit, and Local remote switching means (3) for setting the measurement condition input operation unit to the lock state.
6), the local remote switching means, when the specific key is operated while the measuring unit is performing measurement according to the measurement conditions received by the communication means, the measurement condition input The operation unit is configured to be in the unlocked state, and the measurement condition input from the measurement condition input operation unit in place of the received measurement condition is set in the measurement unit.

According to a second aspect of the present invention, in the measuring apparatus of the first aspect, different display information is stored according to a state of the measurement condition input operation unit and a state of the measurement unit. The display information memory (34) stores display information indicating to which state the state of the measurement condition input operation unit and the state of the measurement unit shift when the specific key is operated next. Read from
Specific key information display means (23, 38, 40) for displaying at a position corresponding to the specific key.

According to a third aspect of the present invention, in the measuring apparatus according to the first or second aspect, the measurement condition input operation section and the specific key are constituted by a touch panel type switch.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 shows a measuring device 20 according to an embodiment.
FIG.

This measuring device 20 is an error measuring device for measuring the state of a line. As shown in FIG. 2, a key type power switch 21 and a switch panel 22 are provided on an operation surface 20a. Have been.

The switch panel 22 is of a so-called touch panel type in which a plurality of transparent contacts (not shown) are formed in a matrix pattern on the surface of a transparent plate and operated by touching the contact positions with a finger. On the back side, a liquid crystal or CRT type image display 23 is arranged so as to overlap.

FIG. 1 is a block diagram showing the configuration of the measuring device 20. In this figure, a measuring unit 25 is connected to a line under test 5 via a connection terminal 20b provided on the back side of the device, and a bit error rate of the line under test 5 is set by a setting control unit 30 described later. Measure according to the measurement conditions and output the measurement result.

When the switch panel 22 is operated, the switch panel detection circuit 26 outputs the position information of the operated contact to the setting control unit 30.

The communication device 27 communicates with the external device 2 via the communication terminal 20c, receives commands and measurement conditions sent from the external device 2, and sends the received commands and measurement conditions to the setting control unit 30. Output.

The setting control section 30 is constituted by a microcomputer comprising a CPU, a ROM and a RAM, and the functions thereof are shown as blocks in FIG. That is, the measurement condition information memory 31 stores measurement condition item names to be displayed at the screen positions of the image display 23 corresponding to the contact positions within the predetermined area 22a of the switch panel 22, and information that can be set for each item. It is stored in advance together with contact position information.

The measurement condition selection input means 32 reads the information on the measurement condition items stored in the measurement condition information memory 31, outputs the information to the display controller 40, causes the image display 23 to display the information, and displays the information on the measurement condition items. When one of them is selected by operating the switch panel 22, information that can be set for the measurement condition item is displayed on the display controller 40.
And the settable information is displayed on the image display 23, and any of the settable information is displayed on the switch panel 2.
When selected by the operation 2, the selected information is stored in the measurement condition memory 37. This measurement condition memory 37
Are retained even if the power is cut off by a battery (not shown).

The specific key information memory 34 stores a plurality of different specific key display images to be displayed at positions corresponding to the specific area 22b of the switch panel 22 in advance.

The lock switching means 35 is connected to the switch panel 2
Every time the contact of the second specific area 22b is operated, the function of the measurement condition selection input means 32 is alternately turned on and off, and a lock state in which the selection operation of the measurement condition item by the operation of the switch panel 22 is prohibited can be selected. Alternately to the unlocked state.

Until the communication device 27 receives the remote command, the local remote switching means 36 sets the measurement condition input by the measurement condition selection input means 32 in the measurement condition memory 37, and the communication device 27 transmits the remote command. Upon receipt, the function of the measurement condition selection input means 32 is forcibly stopped irrespective of the state of the lock switching means 35 to enter a remote lock state in which the change of the measurement conditions by the switch panel 22 cannot be set. At the same time, the contents of the measurement condition memory 37 are updated and set with the received measurement conditions.

The local / remote switching means 36
When the communication unit 27 receives the remote release command in a state where the measurement unit 25 is performing measurement under the measurement conditions received by the communication unit 27, the forcible stop state of the measurement condition selection input unit 32 is released. To return to the state before receiving the remote command.

The local / remote switching means 36
When the contact of the specific area 22b of the switch panel 22 is operated in a state in which the measurement unit 25 is performing measurement under the measurement conditions received by the communication device 27, the forcible stop state and the lock on the measurement condition selection input means 32 are locked. The stop state by the switching means 35 is released.

The specific key display means 38 displays the next contact point of the specific area 22b of the switch panel 22 based on the state of the lock switching means 35 with respect to the measurement condition selection input means 32 and the switching state of the measurement condition of the local remote switching means 40. Is read from the specific key information memory 34 and output to the display controller 40, and the image is displayed on the image display corresponding to the specific area 22b of the switch panel 22. 22 is displayed at the screen position.

The display controller 40 displays, on the image display 23, the measurement condition items selected by the measurement condition selection input means 32, the settable information, the specific key information, the measurement results of the measurement section 25, and the like.

FIG. 3 is a flowchart showing the measurement condition selection input processing, lock switching processing, local remote switching processing, and specific key display processing of the setting control unit 30. Hereinafter, the operation of the measuring device 20 will be described based on this flowchart.

When the power is turned on by operating the power switch 21, the contents of the measurement condition memory 37 are set in the measurement section 25, and the status flag F of the apparatus is set to 0 (S
1, S2).

Then, as shown in FIG. 4, for example, a key is inserted into the keyhole at a position corresponding to the contact point in the specific area 22b of the switch panel 22, indicating that the operation of the contact point shifts the device to the locked state. Is displayed, and each measurement condition item name H, such as a measurement time and a measurement frequency, is displayed.
.., And the contents h, i, j,... Currently stored in the measurement condition memory 37 for each measurement condition item are displayed on the image display 23 (S3, S4). This display indicates the measurement conditions currently set in the measurement unit 25.

Each of the measurement condition item names H, I, J,... Is displayed at a position corresponding to each contact position in the area 22a of the switch panel 22, and an item to be changed and set, for example, the item name H is selected. Then, when the user touches the display of the item, as shown in FIG. 5, information h1, h2, h3,... That can be set for the selected measurement condition item is the contact position in the area 22a of the switch panel 22. (S5, S6).

When the information to be set is selected from the above information and the display is touched, the information in the measurement condition memory 37 is updated with the selected information, and the process returns to step S3 to be updated. The measured information is set in the measurement unit 25, and the new measurement conditions are displayed (S7 to S9).

By performing this operation as needed, desired measurement conditions can be set in the measurement condition memory 37. A state in which the measurement conditions performed by the measurement unit 25 can be arbitrarily updated and set (local unlocked state)
Continue until a contact in the specific area 22b of the switch panel 22 is operated or a remote command is received.

Then, during this local unlock state,
When the contact of the specific area 22b of the switch panel 22 is operated, the status flag F is set to 1 (S10, S10).
11). Thereby, the area 2 of the switch panel 22
The local lock state in which the operation on the contact point 2a is not accepted, and this local lock state
For example, as shown in FIG. 6, the display color of each measurement condition item is inverted and displayed, and the display of the specific key corresponding to the contact point of the specific area 22b of the switch panel 22 is changed to a state where the key is removed from the keyhole. (S12 to S14).

This local lock state continues until the specific area 22b of the switch panel 22 is operated again or the communication device 27 receives a remote command.

Here, when the specific area 22b of the switch panel 22 is operated again, the locked state for the operation of the area 22a of the switch panel 22 is released, and the processing S
Return to 2 (S15, S16).

Further, during the local lock state, the external device 2
When the communication device 27 receives the remote command from
In the measurement condition received with the remote command,
The contents of the measurement condition memory 37 are updated and set, and the measurement unit 2
5 enters a remote lock state (second remote lock state) in which measurement is performed in accordance with the received measurement conditions, and furthermore, the display of the specific key portion is, for example, as shown in FIG. The image is changed to the image obtained by adding the character "local" to the extracted image (S17-1).
9).

On the other hand, when the remote command is received in the local non-lock state, the state flag F is kept at 0, and the lock is set to a state in which the operation on the area 22a of the switch panel 22 is not accepted as described above. In the same manner as described above, the display color of each measurement condition item is inverted and displayed, and the process shifts to step S18, where the measurement unit 25 performs measurement according to the received measurement condition in the remote lock state (first state). Remote lock state) (S
20, S21).

The first and second remote lock states are as follows.
The state continues until the remote release command is received or the specific area 22b of the switch panel 22 is operated. When the remote release command is received, the status flag F is determined. Then, the process returns to S14, and if the status flag F is 0, the process returns to the local unlocked state and proceeds to S5 (S22, S23).

When the specific area 22b of the switch panel 22 is operated during the remote lock state, the process proceeds to step S2 regardless of the state flag F and returns to the local unlock state (S24).

FIG. 8 is a state transition diagram of the measuring device 20 which changes according to the operation of the specific area 22b of the switch panel 22 and the received command.

As shown in FIG. 8, during the local unlock state of the state A, the specific area 22 of the switch panel 22 is
When the contact b is operated (referred to as KEY), the state is shifted to the local lock state of the state B. When the contact of the specific area 22b of the switch panel 22 is operated during the local lock state, the state is changed to the local unlock state. Return. When a remote command is received in the local non-lock state (this is referred to as RSC), the first remote lock state of the state C is entered. When a remote command is received in the local lock state, the second remote state of the state D is entered. It is locked. When the remote release command is received in the first and second remote lock states (this is referred to as RRC), the state returns to the state before the remote command was received, and the first and second remote lock states are respectively returned. When the contact of the specific area 22b of the switch panel 22 is operated, the state returns to the local unlocked state, which is the basic state of the measuring device, regardless of the state before the remote command is received.

As described above, in the measuring device 20, the state of the device can be switched by operating only the specific area 22b of the switch panel 22, that is, one specific key.
Moreover, regardless of the state of the device, the operation of the specific key can return to the local unlocked state, which is the basic state of the measuring device, with a single operation of the measuring device. Can be.

Further, in the measuring apparatus 20, since a touch panel switch having no mechanically movable parts including an operation unit for inputting measurement conditions and specific keys is used, the mechanical Failures are eliminated, the number of parts is reduced, and reliability is high.

In the above-described embodiment, the operation of the specific key can be performed unconditionally. However, an identification card or a password can be used so as not to be operated by a person completely unrelated to the person involved in the measurement.

When an identification card is used, the identification information is read from the card inserted into the card reader, the identification information is compared with information registered in advance, and the identification information read from the card is registered. Only when it is determined that there is, the operation of the specific key may be accepted. When a password is used, a numeric key or an alphabet key is displayed at a position corresponding to each contact of the area 22a of the switch panel 22, and the password input by the key operation matches the previously registered password. At this time, an operation of a specific key may be accepted.

In the above-described embodiment, the touch panel type operation unit is used. However, the measurement condition input operation unit and the specific key may be constituted by a switch having a mechanically movable part. The measurement items, settable information, and specific keys displayed on the screen may be selected and operated using a mouse.

Further, in the above-described embodiment, the image of the specific key portion is switched according to the state of the apparatus. However, when the specific key is operated next, the state to which the apparatus shifts is indicated by a lamp or the like. You may make it display by lighting of LED etc.

In the above embodiment, the present invention is applied to an error measuring device for testing a line, but the present invention can be similarly applied to other measuring devices.

[0057]

As described above, the measuring apparatus according to the present invention has one of a locked state in which the input of the measurement condition by the operation of the measurement condition input operation unit is not accepted and a non-locked state in which the input is accepted each time the specific key is operated. A lock switching means for alternately switching from the measurement condition to the other, and a local setting for setting the measurement condition received by the communication means in the measurement unit in place of the measurement condition input from the measurement condition input operation unit and for setting the measurement condition input operation unit in a locked state. In a measuring apparatus having a remote switching unit, when a specific key is operated while the measuring unit is performing measurement according to the measuring condition received by the communication unit, the measuring condition input operating unit is unlocked, and the The local remote switching means is configured to set the measurement condition input from the measurement condition operation unit instead of the measurement condition in the measurement unit. It is.

Therefore, the state of the apparatus can be switched by operating only one specific key, and even if the state of the apparatus is in any state, a single operation of this specific key can be performed.
It is possible to return to the basic state in which the measurement condition can be changed by the measurement condition input operation unit, and the state of the measuring device can be switched very easily.

In addition, when the specific key is operated next time, information indicating the state of the measurement condition input operation section and the state of the measuring section to be shifted to is displayed at a position corresponding to the specific key. Therefore, the current state of the measuring device and the next state by operating a specific key can be easily grasped, and the state can be switched without fail.

Further, since the measurement condition input operation unit and the specific key are constituted by a touch panel type switch having no mechanically movable parts, a mechanical failure of the switch is eliminated, the number of parts is reduced, and high reliability is achieved. Become.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment.

FIG. 2 is a perspective view showing the appearance of an embodiment of the present invention.

FIG. 3 is a flowchart illustrating a processing procedure of a main part of the embodiment;

FIG. 4 is a view showing an example of a display screen according to the embodiment;

FIG. 5 is a view showing an example of a display screen according to the embodiment;

FIG. 6 is a view showing an example of a display screen according to the embodiment;

FIG. 7 is a view showing an example of a display screen according to the embodiment;

FIG. 8 is a state transition diagram of one embodiment.

FIG. 9 is a block diagram showing the configuration of a conventional device.

10 is a state transition diagram of the conventional device.

[Explanation of symbols]

 Reference Signs List 20 measuring device 22 switch panel 23 image display 25 measuring unit 26 switch panel detecting circuit 27 communication device 30 setting control unit 31 measuring condition information memory 32 measuring condition selection input means 34 specific key information memory 35 lock switching means 36 local remote switching means 37 Measurement condition memory 38 Specific key display means 40 Display controller

Claims (3)

(57) [Claims] A measuring section for performing measurement on an object to be measured based on set measurement conditions; and a measurement condition input operation section for inputting measurement conditions of the measurement section. 32), communication means (27) for receiving commands and measurement conditions sent from an external device, one specific key (22b), and each time the specific key is operated, Lock switching means (35) for alternately switching from one of a locked state in which an input of a measurement condition by operation is not received and a non-locked state in which the input is received, and the communication means receives the first command and the measurement condition when the communication means receives the first command and the measurement condition. Setting the measured measurement conditions in the measurement section instead of the measurement conditions input from the measurement condition input operation section, and setting the measurement condition input operation section to the locked state. A local remote switching unit, when the specific key is operated while the measuring unit is performing measurement in accordance with the measurement conditions received by the communication unit. Setting the measurement condition input operation unit to the unlocked state,
A measuring apparatus configured to set, in the measuring unit, a measuring condition input from the measuring condition input operation unit instead of the received measuring condition. 2. A display information memory (34) storing different display information according to the state of the measurement condition input operation section and the state of the measurement section, and Specific key information display means for reading display information indicating which of the state of the measurement condition input operation unit and the state of the measurement unit shifts from the display information memory and displaying the display information at a position corresponding to the specific key ( 23, 38, 40). 3. The measurement apparatus according to claim 1, wherein the measurement condition input operation unit and the specific key are configured by a touch panel type switch.