CN103136581A - Display device of medicine counting machine - Google Patents
Display device of medicine counting machine Download PDFInfo
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- CN103136581A CN103136581A CN2011103760652A CN201110376065A CN103136581A CN 103136581 A CN103136581 A CN 103136581A CN 2011103760652 A CN2011103760652 A CN 2011103760652A CN 201110376065 A CN201110376065 A CN 201110376065A CN 103136581 A CN103136581 A CN 103136581A
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Abstract
The invention provides a display device of a medicine counting machine. The display device is used for displaying counting results of the medicine counting machine. The display device comprises an interface unit, at least one latch decoder and at least one nixie tube, wherein the interface unit is connected with an output end of a programmable logic controller (PLC) of the medicine counting machine, a signal of the PLC is transmitted to a binary coded decimal (BCD) code input end and a latch signal end of the latch decoder, and a decoding output end of the latch decoder and a data input end of the nixie tube are connected. By means of the display device of the medicine counting machine, the counting signal of the PLC can be directly processed, and the counting results can be real-timely and accurately displayed.
Description
Technical field
The present invention relates to a kind of some medicine machine display device.
Background technology
Point medicine machine is a kind of common equipment in automatic dispensary, can be used for making an inventory and the each side such as counting, medicine subpackage counting of medicine particle quantity.The counting mechanism of some medicine machine normally adopts the PLC(programmable logic controller (PLC)) control, obtain the count signal of serial.And the display device of existing some medicine machine generally adopts single-chip microcomputer (Micro-processor MCV) to control, this makes count signal need advanced line level conversion, convert the signal that MCU can identify to, as the Transistor-Transistor Logic level signal, and then send charactron demonstration count results to by MCU.This mode increases switching time, and also easily causes the transmission burden of change-over circuit when conversion, causes loss of data or time-delay, can not show in real time data.
Summary of the invention
In order to address the above problem, the invention provides a kind of some medicine machine display device, can directly process the count signal of PLC, can show real-time and accurately count results.
Concrete technical scheme is as follows:
A kind of some medicine machine display device that the embodiment of the present invention provides is used for showing a count results of medicine machine, comprises interface unit, at least one latch decoder and at least one charactron, wherein
Described interface unit is connected in the PLC output terminal of a medicine machine, the PLC signal is transferred to binary-coded decimal input end and the latch signal end of described latch decoder, and the decoding output terminal of described latch decoder is connected with the data input pin of described charactron.
The preferred embodiment one of according to the present invention, described latch decoder adopts the CD4511 chip, and its binary-coded decimal input end is pin one, 2,6 and 7, and the latch signal end is pin 5, and the decoding output terminal is pin 9,10,11,12,13,14 and 16.
The preferred embodiment one of according to the present invention, described charactron adopt the LED common cathode to show charactron, and its data input pin is pin two, 3,4,5,7,8,9 and 10.
The preferred embodiment one of according to the present invention is serially connected with divider resistance between the decoding output terminal of described latch decoder and the data input pin of described charactron.
The preferred embodiment one of according to the present invention, this device comprises 4 latch decoders and 4 charactrons, described latch decoder is corresponding one by one with charactron.
As can be seen from the above technical solutions, a kind of some medicine machine display device provided by the invention can directly be processed the count signal of PLC, can show real-time and accurately count results, convenient operation person management and controlling.
Description of drawings
Fig. 1 is the theory diagram of the some medicine machine display device that provides of the embodiment of the present invention;
Fig. 2 is the circuit diagram of the some medicine machine display device that provides of the embodiment of the present invention.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the drawings and specific embodiments.
Embodiment 1
Provided by the invention some medicine machine display device be used for to show the count results of some medicine machine, and some medicine machine obtains the count signal (hereinafter referred to as the PLC signal) of serial by the counting mechanism of PLC reference mark medicine machine.The present invention is to provide the display device of utilizing this count signal to show count results.
Fig. 1 is the theory diagram of the some medicine machine display device that provides of the present embodiment, as shown in Figure 1, comprises interface unit 10, at least one latch decoder 20 and at least one charactron 30, wherein
Fig. 2 is the circuit diagram of the some medicine machine display device that provides of the present embodiment, as shown in Figure 2, this device comprises 4 latch decoders and 4 charactrons, latch decoder U1, U2, U3, U4 and charactron LED1, LED2, LED3, LED4, and latch decoder is corresponding one by one with charactron.Latch decoder 20 adopts the CD4511 chip, and its binary-coded decimal input end is pin one, 2,6 and 7, and the latch signal end is pin 5, and the decoding output terminal is pin 9,10,11,12,13,14 and 16.Charactron 30 adopts the LED common cathode to show charactron, and its data input pin is pin two, 3,4,5,7,8,9 and 10.Be connected in series divider resistance R9 ~ R36 between the decoding output terminal of latch decoder and the data input pin of charactron.The test input of latch decoder (pin 3) is connected pin 4 with the blanking input end) connection+5V power supply, be high level.Control the duty of latch decoder by the LE1 of the latch signal in the PLC signal ~ LE4.When LE1 was low level 0, latch decoder U1 allowed the output of decoding output terminal, and charactron LED1 is according to the decode results output display of the binary-coded decimal signal A0 ~ A3 in the PLC signal at this moment.When LE1 was output as high level 1, latch decoder U1 was the locking hold mode, the numerical value of input before keeping, and this moment, the demonstration of charactron LED1 did not change.
When a medicine machine was counted, the PLC signal can change according to the action of counting mechanism, and display device provided by the invention can show count results in real time, was convenient to management and controlled.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, is equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (5)
1. a some medicine machine display device, be used for showing a count results of medicine machine, it is characterized in that, comprises interface unit, at least one latch decoder and at least one charactron, wherein
Described interface unit is connected in the PLC output terminal of a medicine machine, the PLC signal is transferred to binary-coded decimal input end and the latch signal end of described latch decoder, and the decoding output terminal of described latch decoder is connected with the data input pin of described charactron.
2. device according to claim 1, is characterized in that, described latch decoder adopts the CD4511 chip, and its binary-coded decimal input end is pin one, 2,6 and 7, and the latch signal end is pin 5, and the decoding output terminal is pin 9,10,11,12,13,14 and 16.
3. device according to claim 1, is characterized in that, described charactron adopts the LED common cathode to show charactron, and its data input pin is pin two, 3,4,5,7,8,9 and 10.
4. device according to claim 1, is characterized in that, is serially connected with divider resistance between the decoding output terminal of described latch decoder and the data input pin of described charactron.
5. device according to claim 1, is characterized in that, this device comprises 4 latch decoders and 4 charactrons, and described latch decoder is corresponding one by one with charactron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103760652A CN103136581A (en) | 2011-11-23 | 2011-11-23 | Display device of medicine counting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103760652A CN103136581A (en) | 2011-11-23 | 2011-11-23 | Display device of medicine counting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103136581A true CN103136581A (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103760652A Pending CN103136581A (en) | 2011-11-23 | 2011-11-23 | Display device of medicine counting machine |
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| CN (1) | CN103136581A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660477A (en) * | 2009-09-16 | 2010-03-03 | 李家新 | Digital engine ignition angle gauge |
| CN101846581A (en) * | 2010-04-20 | 2010-09-29 | 华东交通大学 | LED light source stability detector based on PLC control and detection method thereof |
| CN202351919U (en) * | 2011-11-23 | 2012-07-25 | 苏州艾隆科技有限公司 | Display device of drug counting machine |
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2011
- 2011-11-23 CN CN2011103760652A patent/CN103136581A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660477A (en) * | 2009-09-16 | 2010-03-03 | 李家新 | Digital engine ignition angle gauge |
| CN101846581A (en) * | 2010-04-20 | 2010-09-29 | 华东交通大学 | LED light source stability detector based on PLC control and detection method thereof |
| CN202351919U (en) * | 2011-11-23 | 2012-07-25 | 苏州艾隆科技有限公司 | Display device of drug counting machine |
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Application publication date: 20130605 |