JP2807007B2 - Weighing terminal controller - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a weighing terminal control device used in a weighing management system that is centrally controlled by a computer, and more particularly, to a central management using a plurality of weighing devices by hand. The present invention relates to a weighing terminal control device provided and used for each weighing device of a weighing management system that weighs as instructed by the device.

[Prior Art] A weighing management system that instructs a plurality of weighing devices by using the above-described computer as a central management device and weighs the results, and manages and saves the results is used in various fields such as dyeing, paint, pharmaceutical, and food. .

For example, Japanese Unexamined Patent Publication No. 1-239425 discloses, as such a weighing system, a weighing system provided with arrival display means for displaying when a weighed value reaches a predetermined weight value, and means for displaying the weighed value reached. Things are disclosed. Although the quantitative metering device of the present disclosure is effective in improving the weighing operation, it has the following problems.

That is, since each measuring instrument is directly connected to the management device, common processing can be performed if the connected measuring instruments have the same electronic message format in data communication. A processing program for each measuring device and a means for recognizing the model of the measuring device and selecting software are required, and there is a problem that the system becomes large. In addition, since online data processing of a plurality of measuring instruments is required, the computer of the management device requires high-speed processing.

In addition, since the operation required for weighing must be input by the management device itself, the reciprocating movement between the weighing device and the management device is often performed, and the workability is reduced accordingly. There is a problem that there are many.

[Object of the Invention] The present invention has been made in view of the above situation, and weighing work can be performed by simple operation almost at the weighing device, and various weighing devices can be processed by the common software, and the burden on the management device can be reduced. It is an object of the present invention to provide a weighing terminal control device that can be greatly reduced.

[Configuration and Function of the Invention] The above object is achieved by the present invention described below. That is, according to the present invention, in a weighing terminal control device connected to each weighing device and controlling transmission and reception of information to and from a common management device, a first input and output of information in a predetermined message format of the connected management device is performed. Output means, second input / output means for exchanging information in a message format of a connected weighing device, and display means for displaying data necessary for weighing including a weighing instruction amount from the management device and a weighing value from the weighing device. An instruction for instructing transmission of data necessary for weighing management to a management device, including determination means for determining termination of weighing based on the weighing instruction amount and the weighing value, and end instruction means for instructing transmission of a final weighing value And a means for controlling the weighing terminal.

As described above, the common protocol corresponding to the management device, that is, the first protocol for exchanging information such as data in a predetermined message format.
The second input / output means is provided for exchanging information in the form of a message of a weighing device connected to the input / output means of the same type. Therefore, the weighing values of the different types of weighing devices are also transmitted to the management device in a common message format. Therefore, the management device can perform processing with common software, and the software load is reduced. In addition, the display means displays the weighing instruction amount required for the weighing operation, the control width thereof, the difference between the weighing instruction amount and the current weighing value, and the determination means automatically determines the end of weighing. Weighing can be performed only by the weighing terminal control device arranged near the weighing device without looking at the display or the like, and the workability of the weighing operation is greatly improved. Further, since a required operation can be performed by each of the instruction units having a small number of executing the predetermined functions, a highly reliable system without erroneous operation is realized. In particular, the end instructing means can be instructed only when the weighing is correctly completed, thereby preventing a serious operation error or malfunction and realizing a more reliable system. In addition, the device identification number required to form an information link with the management device is set by the setting means provided in the housing, so that it is irrelevant to the operator and handling is simplified, and trouble due to erroneous operation is reduced. I do.

 Hereinafter, details of the present invention will be described based on examples.

FIG. 1 is a block diagram showing a configuration of an embodiment, FIG. 2 is a plan view showing an arrangement of a front surface thereof, and FIG. 3 is a block diagram showing a configuration of a weighing system using the embodiment.

As shown in the figure, the weighing terminal control device 100 of the embodiment is connected to a CPU 110 of a computing means comprising a microcomputer via a bus 120, a display lamp such as an LED, a display means 130 comprising a numeric display, etc., and a storage means 140 comprising RAM. A first and second I / O for exchanging information with the instruction means 150 comprising a touch switch, the identification number setting means 160 comprising a dip switch, the management device 10 comprising an RS-232C interface, and the weighing device 20.
The configuration is such that O ports 170 and 180 are connected.

The display means 130 and the instruction means 150 are arranged on the front of the weighing terminal control device 100 as shown in FIG. In the upper part on the front, a first display 131 for displaying a weighing instruction amount, a second display 132 for displaying a control width, a remaining amount during weighing, and an end of weighing, comprising a numerical display of LED of a predetermined number of digits. A third display 133 for displaying the later weighed value is sequentially arranged. In the lower part, indicator lights 133, 134, 135, 1 consisting of four LEDs in a row
36 are provided. The indicator light 133 is a "pass" indicator light which is turned on when the weighing operation is all performed normally until the data transmission, and the indicator light 134 is turned on when the verification operation of the weighing device 20 is performed by a request from the management device 10. The indicator light 135 is a “material error” indicator light that is turned on when the used material is different from the instruction of the management device 10, and the indicator light 135 is an indicator light.
Reference numeral 136 denotes an “error” indicator light for displaying other erroneous operations and the like.

Below the indicator lights 133, 134, 135, 136, keys 151 to 156 of pointing means composed of membrane switches are arranged in two horizontal rows. A key 151 is a tare key for instructing a series of steps of erasing a tare to the weighing device 20 and transmitting a result of the tare weighing value to the management device 20. A key 152 is an intermediate transmission key for instructing transmission of the raw material weighing value of the lot before the change to the management device 10 for management when the raw material lot needs to be changed during the weighing. A key 153 is an end instruction key for instructing transmission of a final weighed value after the end of weighing, and is a switch with a display which is lit to indicate that transmission is possible at the end of weighing. A key 154 is a zero key for instructing zero adjustment of the weighing device 20. The key 155 is a spare key, and the key 156 is a reset key for returning to the weighing start from all states.

The first input / output means for exchanging data with the management device 10 is a processing program for generating the above-mentioned first I / O port 170 and a message format of the data stored in the CPU 110, and conversely decoding the data format therefrom. The setting is made so that data is transmitted and received in a message format unified with the management device 10. Similarly, the second input / output means for transmitting / receiving data to / from the weighing machine 20 is the same as the above-mentioned second I / O port 180 and the first input / output means stored in the CPU 110, for generating a data format of the data. It consists of a decryption processing program, and is set so as to transmit and receive data in a message format of the connected weighing machine 20. Note that this setting is based on I / O ports 170 and 180, management device 10,
This is done by connecting to 20 and each processing program.

In this example, the message format used for the first input / output means for data exchange with the management device 10 is newly defined based on the basic procedure. On the other hand, the second input / output means
The electronic form of the commercially available weighing machine 20 was used. These weighers
Although 20 differs depending on the model, the TTY procedure is generally used, and data is exchanged in a message format unique to each weighing device. Since each procedure and message format are publicly known, detailed description thereof will be omitted.

The weighing device 20 is not particularly limited as long as it has an information transmission function known as an electronic weighing device, and a commercially available weighing device can be used as it is. In this example, an electronic precision balance equipped with an RS-232C interface manufactured by Shimadzu Corporation was used.

The entire weighing system is configured as shown in the block diagram of FIG. That is, the management device 10 is composed of a host computer 11 disposed in a central control room and the like and a terminal computer 12 disposed in each work process, and a plurality of weighing devices 20 are connected to the terminal computer 12 to control the respective weighing terminals described above. It is connected via the device 100 so that a weighing instruction can be given and the weighing result can be recorded and stored.

The weighing operation by the above system is referred to as a weighing terminal controller.
It will be described together with 100 operations. Fig. 4 shows the weighing terminal controller 1.
It is a flowchart of the operation set to 00.

The weighing operation starts with an instruction to select a weighing item displayed on the terminal computer 12. Next, the weighing container is placed in a weighing machine 20.
It is placed on the top and the tare key 151 is pressed. Then, a tare erasure command message is first transmitted from the I / O port 180 of the second input / output means of the weighing terminal control device 100 to the weighing device 20 in a message format of the weighing device 20. Then, the weighing device 20 executes the tare erasure, and transmits the tare weighing value to the weighing terminal control device 100 in the form of a message. When the weighing terminal control device 100 receives the tare weighing value at the second input / output means, the weighing terminal control apparatus 100 transmits the identification number setting means 16
By adding its own device identification number set to 0, the data is converted into a unified message format of the management device 10 by the first input / output means, and the management device is connected via the first I / O port 170. Transmit to 10. Since the data transmission between the management device 10 and the weighing terminal control device 100 and the weighing device 20 are all performed in the same manner as described above, the description of the processing in the message format will be omitted below.

Upon receiving the above transmission, the terminal computer 12 checks whether the weighing device 20 has been verified from the device identification number, confirms that the weighing device 20 has been verified, and returns the weighing instruction amount and the weighing instruction information of the management width to the weighing terminal control device 100. . In response to this, the weighing end control device 100 displays the information on the respective weighing devices 131 and 132.

During this time, the operator scans the barcode label of the raw material container to be used by the barcode reader directly connected to the terminal computer 12, and inputs the raw material code. The management device 10 checks whether or not the input raw material is of the selected weighing item, and if different, transmits to the weighing terminal control device 100. Since the weighing terminal control device 100 turns on the raw material error indicator light 155, the operator changes the raw material to the correct one and inputs again. This check is mainly performed by the management apparatus 10, and thus is omitted in the flowchart.

Next, the operator weighs the raw material from the raw material container to a weighing container on the weighing machine 20 with a spoon or the like, and starts weighing.
The weighing device 20 transmits the weighed value at a predetermined cycle to the weighing terminal control device 100.
Is transmitted to The weighing terminal control device 100 performs a determination process as described below by the stored determination means program, and automatically determines the end of weighing. That is, the difference between the weighing value from the weighing device 10 and the weighing instruction amount is calculated to obtain the remaining amount, and this is displayed on the display 133, and whether or not the difference is equal to or smaller than the management width is checked. When the weighing is completed, the buzzer sounds and the end instruction key 153 is lit to notify the operator at the same time, and the final weighed value itself is displayed on the display 133, and the transmission inhibition of the end instruction key 153 is released, End instruction is enabled.

The operator presses the end instruction key 153 after waiting for the weighing value to be determined. Then, the final weighed value is transmitted to the management device 10 together with the device identification number. When receiving the final weighed value, the management device 10 compares the items with the weighed items. If all the items are OK, the management device 10 returns “completed” to the weighing terminal control device 100, and the final weighed value, the raw material lot number, Necessary management data such as the date and time of measurement and the number of weighing instruments used are stored and stored.

When receiving the “completion”, the weighing terminal control device 100
The "pass" indicator 133 is turned on, and the end instruction key 153 is displayed.
Is set to "transmission prohibited" so as not to accept the operation, the display is turned off, and the weighing is completed.

If the raw material is no longer in the middle of weighing and it is necessary to change the lot of the raw material, the process is executed as follows. First, the intermediate transmission key 152 is pressed. As a result, the current weighed value, that is, the amount of raw material used before the lot change is
Is transmitted to The management device records and archives this, and displays the next raw material lot in the selected weighing item from the raw material management list. The operator takes the next prepared raw material container and inputs the raw material code using a bar code reader.
If there is a mistake in the raw material container, it will be displayed as described above,
Replace with the correct one. Subsequent operations are the same as the above-mentioned normal weighing operation.

In addition, the verification work of the weighing device 20 is usually performed once a day, when a predetermined weight is loaded with a reference weight, and the weighed value is recorded and stored for each weighing device. Since the processing is performed in the same manner, the description of the flow is omitted. Note that zero adjustment is also performed in accordance with this.

As described above, the weighing terminal control device of the present invention includes first and second input / output means capable of changing to a higher-level management device and a message format of each weighing device, display means of data necessary for weighing work, and weighing work. Instruction means capable of instructing the weighing of necessary data is provided, which has the effect of improving the workability of weighing work and greatly reducing the software load on the upper management device,
It is an industrially useful material that greatly contributes to rationalization of the weighing process in various industrial fields.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment, FIG. 2 is an explanatory view of a front arrangement of the embodiment, FIG. 3 is a block diagram showing a configuration of a weighing management system using the embodiment, and FIG. FIG. 4 is a flowchart showing the operation of the embodiment. 10: management device, 20: weighing device, 100: weighing terminal control device, 110:
CPU, 130: display means, 150: instruction means, 170, 180: I / O port

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G01G 19/22-19/38 G01G 23/36-23/37

Claims (6)

(57) [Claims] 1. A weighing terminal control device connected to each weighing device and controlling transmission and reception of information to and from a common management device, wherein a first information for transmitting and receiving information in a predetermined message format of the connected management device is provided.
Input / output means, second input / output means for exchanging information in the form of messages of a connected weighing device, and data necessary for weighing including a weighing instruction amount from the management device and a weighing value from the weighing device are displayed. And a determination unit for determining the end of the weighing based on the weighing instruction amount and the weighing value, and a termination instruction unit for instructing the transmission of the final weighing value. A weighing terminal control device, comprising: instruction means for instructing. 2. An apparatus according to claim 1, wherein said instruction means comprises said end instruction means, intermediate transmission instruction means for instructing the transmission of the weighing value at that time during weighing, and tare instruction means for instructing the transmission of the weighing value of the tare. Item 2. The weighing terminal control device according to Item 1. 3. The weighing terminal control device according to claim 1, wherein the end instruction means cannot issue an instruction before the end of the weighing, but can issue an instruction after the end of the weighing. 4. The weighing apparatus according to claim 1, wherein said determining means determines that weighing is completed when a difference between a weighing instruction amount from said managing device and a weighing value from said weighing device becomes equal to or less than a managing width from said managing device. Second
Item 4. The weighing terminal control device according to item 3 or 3. 5. A display device comprising: a first display for displaying a weighing instruction amount; a second display for displaying a control width thereof;
4. A third display for displaying a difference between a weighing instruction amount and a weighing value from a weighing device during weighing, and displaying a final weighing value after the weighing is completed. Item 5. The weighing terminal control device according to item 4 or 4. 6. The weighing terminal control device according to claim 1, further comprising an identification number setting means for setting an identification number of the device in the housing.