JPH0833312B2 - Portable terminal - Google Patents

Description

TECHNICAL FIELD The present invention relates to a portable terminal suitable for collecting maintenance and inspection data of plant equipment and electric equipment.

[Conventional technology]

FIG. 7 is a perspective view showing the external appearance of a conventional portable terminal, and FIG. 8 is a block diagram showing its configuration (first conventional example).

In FIGS. 7 and 8, 1 is a key input unit for inputting various data such as numerical values and operation commands, 2 is a display unit for displaying data items and collected data, 3 is a memory for storing data, 4 is a communication interface unit for transferring data to another device, 51 is a control unit for controlling the key input unit 1, the display unit 2, the memory 3 and the communication interface unit 4, 2a is a printer, 3a is a memory card, 4a Is a connector to which a cable for connecting another device is attached.

 Next, the operation of the first conventional example will be described.

An operator carrying a portable terminal inputs a data item and data corresponding to the data item into the key input unit 1 at a place where he / she goes. Then, the control unit 51 displays each input data on the display unit 2 and stores it in the memory 3. In addition, the operator can input a display instruction to the key input unit 1 after the stored data, and the control unit 51 correspondingly retrieves the data from the memory 3 and gives it to the display unit 2. Is displayed in. The control unit 51 also has a function of calculating each data. The operator can connect the portable terminal to an external device such as a personal computer when returning to the office. That is, when the cable connected to the external device is connected to the connector 4a, the control unit 51 receives a transfer command from the external device via the communication interface unit 4 or an output instruction input to the key input unit 1. Then, by transferring the corresponding data to the external device via the communication interface unit 4, the operator can perform data aggregation and the like in the external device. In the portable terminal, the memory card 3a can be used as the memory 3 and necessary data can be output by the printer 2a. The portable terminal also has a built-in battery.

FIG. 9 is a perspective view showing the appearance of a conventional portable digital oscilloscope, and FIG. 10 is a block diagram showing its configuration (second conventional example).

In FIGS. 9 and 10, reference numeral 52 controls the key input unit 1, the display unit 2 and the memory 3 and the A / D converter 7
Is a control unit for taking in data from the device, 6 is a signal input unit for taking in signals at the measurement points of the device under test, and 8 is a strap for facilitating carrying by the operator.

 Next, the operation of the second conventional example will be described.

First, the operator connects the probe connected to the signal input section 6 to the measurement point of the device under test, and inputs parameters such as the voltage range and sampling rate from the key input section 1. Then, the control unit 52 stores the signal (which is digitized) taken in via the signal input unit 6 and the AD converter 7 in the memory 3, and causes the display unit 2 to display the waveform of the signal.

[Problems to be Solved by the Invention]

Since the conventional portable terminal is configured as described above, when the operator performs maintenance and inspection of plant equipment, etc., data items such as equipment name and measurement point name, data such as temperature, etc. In order to collect an analog signal, there is a problem that a portable terminal (first conventional example) and a digital oscilloscope (second conventional example) must be carried.

Further, since the data item and the data and the analog signal are collected independently, there is a problem that it takes time and effort to associate the two with each other and the efficiency of maintenance and inspection is reduced.

The present invention has been made to solve the above problems, and an object thereof is to obtain a portable terminal which can add the data collecting function and collect data items and data in association with analog signals. And

[Means for solving the problem]

The portable terminal according to the first aspect of the present invention has both a key input section for inputting various data such as numerical values and operation commands, and a signal input section for inputting an analog signal from the measurement point of the device under test. A memory for storing a digital signal value obtained by A / D converting an analog signal input by the signal input unit by an A / D converter and data input to the key input unit; and data input to the key input unit. Alternatively, a display unit that displays the contents of the memory, a communication interface unit that interfaces with the external device when the contents of the memory are transferred to the external device, and the A
The value output from the D converter and the data input to the key input unit are input to the memory in association with each other, the display content is given to the display unit, and the predetermined content of the memory unit is transmitted to the communication unit. It is designed to be shared with a control unit provided to an external device via the interface unit.

The portable terminal according to the second aspect of the present invention is the portable terminal according to the first aspect of the invention, in which key operation in the key input unit is performed separately from the data collected in the memory. Software (hereinafter referred to as S / W) for simplifying a series of operations is stored, and a complicated series of operations such as confirmation / recording of devices for data collection and operation of function keys for data collection / data transmission are performed. The operation is an application S / W.

[Work]

The control unit in the invention of the first aspect determines the correspondence between the data item such as the name of the measurement point input from the key input unit and the data such as the temperature at the measurement point and the signal input to the signal input unit. Set.

Further, the control unit in the invention of the second claim executes the S / W stored in the memory, and the display unit can be used to guide the data collection target and items, save labor of key input operation, etc. To

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a portable terminal according to an embodiment of the first aspect of the present invention, which is the same as or equivalent to the first and second conventional examples (FIGS. 8 and 10). Are denoted by the same reference numerals and description thereof will be omitted.

In the figure, 5 is a key input unit 1, a display unit 2 and a memory 3.
And the communication interface unit 4 is controlled, and A-
It is a control unit that takes in a digitized signal from the D converter 7 and associates it with the corresponding data item or data.
FIG. 6 is a perspective view showing an example of the external appearance of the portable terminal according to this embodiment.

Next, the operation of the invention of the first claim will be described with reference to the flowchart of FIG.

First, the operator connects the probe connected to the signal input unit 6 to the measurement point of the device under test. When the name (data item) of the measurement point is input by pressing the key assigned to the name among the keys of the key input unit 1 (step ST1), the control unit 5 inputs the input data. The item is stored in a predetermined area of the memory 3. Next, when the operator inputs data such as output current value and temperature obtained by other means into the key input unit 1 (step ST2), the control unit 5
Stores those data together with the current time in a predetermined area of the memory 3 corresponding to the name of the measurement point, and then the operator uses the key to set parameters for collecting analog signals such as trigger conditions, sampling speed, voltage range, etc. Input to the input unit 1 (step ST3). When the trigger condition is satisfied, the control unit 5 captures the analog signal via the AD converter 7 and displays it on the display unit 2 (step ST4). The latest input signal is held in the buffer included in the control unit 5, for example. When the operator confirms the signal displayed on the display unit 2 and determines that the signal should be stored in the memory 3, the operator depresses the key assigned to the input instruction to give the input instruction (step ST5). . Then, the control unit 5 sets the address of the memory 3 in which the signal in the buffer should be stored (step ST6), and associates the signal with the data item and the key-in data, and the memory 3
To be stored.

FIG. 3 is an explanatory diagram showing an example of each value stored in the memory 3. Here, FIG. 3 (a) shows a data item and a portion where data is stored, and FIG. 3 (b) shows a portion where a digitized signal is stored.
In this example, the address of the memory 3 where the signal is stored is
It is added to the data item and data storage. That is, the signal is stored, and at the same time, the address at which the signal is stored is set in the corresponding portion of the data item and the data storage unit.

It is also possible to display the data in the memory 3 on the display unit 2 later according to the display instruction input to the key input unit 1. Then, the operator can connect the portable terminal to the external device by connecting the cable connected to the external device to the connector 4a. At this time, the control unit 5 receives a transfer command from an external device via the communication interface unit 4 or an output instruction input to the key input unit 1, and outputs relevant data to the outside via the communication interface unit 4. Transfer to device. In this case, the data items and the data as well as the corresponding digitized signals can be transferred to the external device.
Therefore, when processing data in an external device,
Since the analog signal (actually digitized) at the point to be measured can be handled together with the data at the point to be measured, the efficiency of data processing is improved.

If the data collection method is different due to the difference in inspection contrast or inspection item, it can be easily dealt with by changing the software of the control unit 5, for example, changing the interpretation of the item assigned to the key.

Further, the memory card 3c can be used as the memory 3, and the data collection software of the control unit 5 can be loaded from an external device via the communication interface unit 4 or can be installed in the memory card 3c. It is possible.

Next, one embodiment of the invention of the second claim will be described with reference to the drawings. FIG. 4 is a block diagram showing a configuration of a portable terminal according to an embodiment of the invention of the second claim, and the configuration (FIG. 1) and appearance of the portable terminal according to the invention of the first claim. Since it is the same as (FIG. 6), its explanation is omitted.

In the memory 3, the analog signal input from the measurement point of the device under test to the signal input unit 6 is AD-converted by the AD converter 7 and the digital signal value is input to the key input unit 1. It has a data area 3a for storing various data in association with the control unit 5 and an S / W area 3b for simplifying a series of operations by key operation on the key input unit 1. By executing the above in the control unit 5,
Application S / W is implemented for a series of complicated operations such as confirmation / recording of data collection target devices and operation of function keys for data collection / data transmission.

 Next, the operation of the invention of the second claim will be described.

First, the S / W created to suit the object and purpose of data collection is produced on the portable terminal or on an external device, and the S / W of the memory 3 is passed through the communication interface unit 4. Install in area 3b. Then, when the control unit 5 is activated, the operator, as shown in FIG. 5, specifies and instructs the data collection target, a series of data collection operations, a calculation process of the collected data, the display of the result, and the collected data. Transfer to other devices can be performed sequentially according to the guidance displayed on the display unit 2.

If the data collection target changes, it can be handled by changing the S / W, and by using an interactive application, the S / W
It is also possible to respond without changing the above.

In addition, the key input part can be input by the touch panel of the display part, the memory can be a hard disk other than the IC on the board, an external storage medium such as a memory card, the signal input part can be a voltage waveform input, temperature sensor and other various sensors. It is possible.

In addition, although it is inconvenient to carry, it is possible to share it with a general personal computer as the hardware shared with the synchroscope.

〔The invention's effect〕

As described above, according to the first aspect of the invention, the conventional portable terminal is provided with the signal input section, and various data items input to the key input section and the waveform input to the signal input section. Since the signals are stored in the memory in association with the control unit, it is possible to reduce the number of measuring instruments to carry during maintenance and various waveform analysis, which makes it possible to perform detailed diagnosis of the device under test. is there.

Further, according to the invention of the second claim, S / W for simplifying a series of operations by the key operation in the key input unit is stored in the memory, and confirmation / recording of the data collection target device, A complicated series of operations such as operation of function keys for data collection and data transmission has been converted into application software, which improves the work efficiency as well as the above-mentioned effects, and also changes the data collection mode by changing the software. There is also an effect that can be dealt with.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a portable terminal according to an embodiment of the invention of the first claim, and FIG. 2 illustrates the operation of the portable terminal according to the embodiment of the invention of the first claim. FIG. 3 is a flow chart, FIG. 3 is a diagram for explaining an example of a storage method in the memory, and FIG. 4 is a block diagram showing a configuration of a portable terminal according to an embodiment of the invention of the second claim.
FIG. 5 is a transition diagram for explaining the work contents of the portable terminal according to one embodiment of the invention of the second claim, and FIG. 6 shows the appearance of the portable terminal according to the invention of the first and second claims. 7 and 8 are views showing the appearance of the portable terminal of the first conventional example, FIG. 8 is a block diagram showing the configuration of the portable terminal of the first conventional example, and FIG. 9 is the second conventional example. FIG. 10 is an external view of the digital oscilloscope, and FIG. 10 is a block diagram showing the configuration of the second conventional digital oscilloscope. In the figure, 1 is a key input section, 2 is a display section, 3 is a memory, 3a is a data area, 3b is a S / W area, 4 is a communication interface section, 5 is a control section, 6 is a signal input section, and 7 is A. −
It is a D converter. In the drawings, the same reference numerals indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 62-127629 (JP, A) JP 2-49117 (JP, A) JP 60-153354 (JP, U)

Claims (2)

[Claims] 1. A key input unit for inputting various data items of a device under test, a trigger condition for collecting waveform signals of these various data, a sampling speed, parameters such as various ranges, and the trigger condition is satisfied. When this is done, it also has a signal input section for inputting a waveform signal from the measurement point of the device under test, and an AD converter for converting the analog signal input by this signal input section into a digital value, and this A-D converter. A memory for storing the digital signal value output from the D converter and the data input to the key input section, a display section for displaying the data input to the key input section or the content of the memory, and the content of the memory When transferring the data to an external device, a communication interface section for interfacing with the external device, the digital value output by the AD converter, and the key A control unit for inputting to the memory while associating with the data input to the input unit, giving display contents to the display unit, and giving predetermined contents of the memory unit to an external device via the communication interface unit; Portable terminal equipped with. 2. A key input unit for inputting various data items of a device under test, a trigger condition for collecting waveform signals of these various data, a sampling speed, parameters such as various ranges, and the trigger condition is satisfied. When this is done, it also has a signal input section for inputting a waveform signal from the measurement point of the device under test, and an AD converter for converting the analog signal input by this signal input section into a digital value, and this A-D converter. A memory having a data area for storing the digital signal value output from the D converter and the data input to the key input section and a software area for storing software for simplifying a series of operations by key operation; The operation guide of the software stored in the memory is displayed, and the key input section is operated according to this operation guide. Data or a display unit for displaying the contents of the memory, a communication interface unit for interfacing with the external device when transferring the contents of the memory to an external device, and a digital value output by the AD converter. The data input to the key input unit is input to the memory in association with the data, the display contents are given to the display unit, and the predetermined contents of the memory unit are given to an external device via the communication interface unit. A portable terminal equipped with a control unit.