CN208333659U - Instrument automation detection system - Google Patents
Instrument automation detection system Download PDFInfo
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- CN208333659U CN208333659U CN201820721711.1U CN201820721711U CN208333659U CN 208333659 U CN208333659 U CN 208333659U CN 201820721711 U CN201820721711 U CN 201820721711U CN 208333659 U CN208333659 U CN 208333659U
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- instrument
- touch screen
- access instrument
- screen unit
- access
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- 238000001514 detection method Methods 0.000 title claims abstract description 66
- 238000012360 testing method Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 abstract description 17
- 238000010586 diagram Methods 0.000 description 6
- 238000005303 weighing Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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Abstract
The utility model discloses a kind of instrument automation detection systems, including touch screen unit, and multimeter, PLC module and the analog module connecting with the touch screen unit, the multimeter are used to measure the voltage and current of access instrument, and are transferred to touch screen unit；The PLC module carries out designated state for exporting digital output modul access instrument；The analog module simulates weight signal for exporting analog signals to the access instrument.This programme simplifies the testing process of access instrument, improves the detection efficiency of access instrument, the artificial careless omission for reducing and detection being avoided to occur；And can after the completion of automatic detection can detailed record testing result, in case staff's subsequent calls testing result.
Description
Technical field
The utility model relates to arrive instrument detection field, a kind of instrument automation detection system is especially related to.
Background technique
Currently, production division is detected as artificial detection before instrument factory, since detection project is more, the detection of each single item is walked
Rapid cumbersome, artificial detection needs take considerable time that new hand also needs training and is familiar with testing process.It is time-consuming, not only influence
Production efficiency, and it is also possible to the case where leak detection error detection inspection less occur in detection.In addition the record detected is also artificial
It goes to record, under efficiency is very low.
Utility model content
In order to solve the defect of the above-mentioned prior art, the purpose of the utility model is to provide a kind of instrument automation detection systems
System simplifies testing process, reduces the artificial careless omission that detection occurs.
To achieve the above purpose, the technical solution of the present invention is:
A kind of instrument automation detection system, including touch screen unit, and the general-purpose being connect with the touch screen unit
Table, PLC module and analog module,
The multimeter is used to measure the voltage and current of access instrument, and is transferred to touch screen unit；
The PLC module carries out designated state for exporting digital output modul access instrument；
The analog module simulates weight signal for exporting analog signals to the access instrument.
It further, further include having the barcode scanner connecting with the touch screen unit, the barcode scanner is for reading access
The barcode data of instrument.
Further, the output switch parameter of the access instrument terminates the input terminal of the PLC module, the access instrument
On-off signal terminate the output end of the PLC module, by the touch screen unit control the access instrument with it is described
Timing between PLC module tests switching value.
Further, the multimeter connects the touch screen unit by RS232, and the access instrument passes through RS485
Connect the touch screen unit.
The beneficial effects of the utility model are: simplifying the testing process of access instrument, the detection effect of access instrument is improved
Rate, the artificial careless omission for reducing and detection being avoided to occur；And it the detailed record detection of energy can be tied after the completion of automatic detection
Fruit, in case staff's subsequent calls testing result.
Detailed description of the invention
Fig. 1 is a kind of structural block diagram of instrument automation detection system of the utility model；
Fig. 2 is a kind of method flow diagram of weighing instrument automated detection method of the utility model；
Fig. 3 is a kind of method flow diagram of detection switch amount of the utility model；
Fig. 4 is a kind of flow chart of detection switch amount of one specific embodiment of the utility model；
Fig. 5 is a kind of detection of the utility model and the method flow diagram for demarcating weight；
Fig. 6 is a kind of method flow diagram for detecting current-mode analog quantity of the utility model；
Fig. 7 is a kind of method flow diagram of nominal voltage analog quantity of the utility model.
Specific embodiment
For the thought and purpose for illustrating the utility model, the utility model is done below in conjunction with the drawings and specific embodiments
Further instruction.
CE, electric current allowable error.
VE, voltage allowable error.
Referring to Fig.1, one specific embodiment of the utility model, a kind of instrument automation detection system, including touch screen are proposed
Unit 10, and the multimeter 40, PLC module 20 and the analog module 50 that are connect with touch screen unit 10.Wherein,
Touch screen unit 10, is the control centre of entire detection system, respectively accesses mould by sending and receiving instructions coordinate
Block executes the testing process of instrument, and real-time display test process.Touch screen unit 10 can show test process state, user
Corresponding AM access module work can also be controlled directly by touching by corresponding control instruction is inputted.
Multimeter 40 for measuring the voltage and current of access instrument 30, and is transferred to touch screen unit 10, by touch screen
Unit 10 is compared and judges.
PLC module 20 carries out designated state for exporting digital output modul access instrument 30.
Analog module 50 gives access instrument 30 for exporting analog signals, simulates weight signal.
Specifically, a kind of instrument automation detection system further includes having for being each AM access module and touch screen unit 10
The power supply of power supply, power supply design parameter are as follows: 90~265V of AC can export the direct currents such as 24V, 5V and supply electricity to detection system and respectively access
Module provides electric energy, guarantees the normal work of detection system AM access module.
Specifically, a kind of instrument automation detection system further includes having the barcode scanner 60 connecting with touch screen unit 10, item
Code rifle 60 is used to read the barcode data of access instrument 30.A unique corresponding item therewith is sticked in every access instrument 30
Code, includes the identity information of corresponding access instrument 30 in bar code, for example, the time of making the product, place, batch, manufacturer and
It is corresponding can to get access instrument 30 by the bar code in the scanning access instrument 30 of barcode scanner 60 for hardware information used etc.
Identity information facilitate and call after its staff for being associated with the storage of subsequent testing result.
Specifically, the input terminal of the output switch parameter termination PLC module 20 of access instrument 30, accesses the switching value of instrument 30
The output end of input termination PLC module 20.The timing between access instrument 30 and PLC module 20 is controlled by touch screen unit 10
Switching value is tested, that is to say output and input by touch screen unit 10 by control access instrument 30 and PLC module 20
The sequence on-off of interface, and whether consistent with dbjective state the virtual condition for detecting output and input interface is, to complete to switch
The detection of amount.
Specifically, multimeter 40 is accessed instrument 30 and is touched by RS485 connection by RS232 connection touch screen unit 10
Shield unit 10.
It is noted that the access instrument 30 that this automatization test system can be used for detecting can be weighing instrument,
It is also possible to other measuring instruments, as long as being provided with serial ports and On-off signal output in access instrument, that is, this can be used
The automated detection system of scheme carries out automatic detection.
This programme simplifies the testing process of access instrument 30, improves the detection efficiency of access instrument 30, reduces and avoid
The artificial careless omission that detection occurs；And can after the completion of automatic detection can detailed record testing result, in case work people
Member's subsequent calls testing result.
With reference to Fig. 2-6, the utility model another specific embodiment also proposed a kind of weighing instrument automated detection method,
Using instrument automation detection system described in an embodiment as above, method specifically includes the following steps:
Bar code on S10, barcode scanner scanning access instrument.
S20, judge whether the serial ports for accessing instrument is normal.
S41, determine that serial ports exports failure if abnormal,.
S40, if normal, then detection switch amount.
S50, detection simultaneously demarcate weight.
S60, whether judge to access instrument with analog output.
S70, if so, detection and Calibrated current analog quantity, detect voltage analog.
S80, display testing result.
S90, detection record is generated.
For step S10-S90, corresponding control instruction is exported by touch screen unit, controls AM access module (such as PLC mould
Block, analog module and universal meter) corresponding work is carried out, complete above-mentioned detection process.
For step S10, the bar code in access instrument is scanned by barcode scanning gun, obtains the identity information of access instrument, example
Such as time of making the product, place, batch, manufacturer and the hardware information used are deposited for being associated with subsequent testing result
Storage facilitates its staff to search calling later.
For step S20, judges whether the serial ports for accessing instrument is normal, only under the premise of serial ports is normal, access instrument
Table can receive subsequent control instruction or analog quantity information, when serial ports is abnormal, enter step S41: determining string
Mouth output failure.
For step S80 and step S90, testing result is shown after automatic detection and generates corresponding detection detection
Record, in case staff's subsequent calls.
Specifically after serial ports testing result is normal, step S40, step S50, step S60 and step are successively carried out
S70。
Include the following steps with reference to Fig. 3, step S40；
The output and input interface on-off of S401, touch screen unit control access instrument and PLC module.
S402, output and the corresponding status data of input interface for obtaining access instrument and PLC module.
S403, judge whether the output of access instrument and PLC module and input interface are normal according to status data.
S404, if normal, then complete switching value, output test result.
Output and the input interface that control access instrument and PLC module is passed through for step S401-S404, touch screen unit
On-off, and the virtual condition for detecting output and input interface be it is consistent with dbjective state, to complete the detection of switching value.
Switching value, and output test result are completed in the virtual condition detected and dbjective state of output and input interface.
When switching value, touch screen module first controls the output interface of access instrument and the input interface of PLC module is led
It is logical, the state of the output interface of access instrument and the input interface of PLC module is read, and record；Then touch screen module is controlled again
The output interface of system access instrument and the input interface of PLC module disconnect, and read the output interface and PLC module for accessing instrument
The state of input interface, and record；Finally judge whether two next states are corresponding with the state of target, determines to open if all corresponding to
Pass amount is normal, and completes switching value test.
It is the specific steps that switching value test is carried out in an embodiment of the present invention with reference to Fig. 4, in which:
OUT1 indicates access meter switch amount output interface 1；
OUT2 indicates access meter switch amount output interface 2；
IN1 indicates access meter switch amount input interface 1；
I0.0 indicates PLC module input interface 1；
I0.1 indicates PLC module input interface 2；
Q0.0 indicates PLC module output interface 1.
With reference to Fig. 4, step S50, comprising the following steps:
S501, analog module export minimum weight analog quantity to access instrument.
S502, calibration access instrument zero point.
S503, analog module export maximum weight analog quantity to access instrument.
The gain weight of S504, calibration access instrument.
S505, analog module export intermediate weight analog quantity.
S506, the current weight data of access instrument is read.
Whether the weight data that S507, judgement are read is equal to the half of gain weight.
If S508, weight data are equal to the half of gain weight, start hop count detection, instrument is accessed in the detection stipulated time
Whether the reading of table is less than setting value.
If S509, being less than setting value, determine normal, exports result.
For step S501-S509, minimum weight analog quantity is to refer to the accession to the corresponding simulation of minimum test weight of instrument
Amount, that is, minimum analog quantity is inputted under normal circumstances to access instrument, it is minimum for accessing the weighing weight that instrument is shown to be exactly
Weight is tested, similarly knows maximum weight analog quantity.By first determining the difference between minimum test weight and full test weight
Value, then detect reading of the access instrument after input the intermediate weight analogue value, then the weight data by judging to read whether
Equal to the half of gain weight, to carry out weight calibration, accurate and effective.
Specifically, in the case that hop count refers to that input weight analog quantity is constant, detecting the numerical value of instrument for step S508
Whether change, be hop count if changing more than preset range, determines that access instrument is abnormal condition.
With reference to Fig. 5, step S70 detection and Calibrated current analog quantity, comprising the following steps:
The corresponding DA code of S7010, initialized target electric current 4mA-24mA.
S7011, the corresponding DA code of output 4mA to access instrument.
S7012, judge the difference of multimeter current detection value and 4mA whether within the scope of allowable error.
If S7013, in error range, the corresponding DA code of output 12mA is to accessing instrument.
S7014, judge the difference of multimeter current detection value and 12mA whether within the scope of allowable error.
If S7015, in error range, the corresponding DA code of output 20mA is to accessing instrument.
S7016, judge the difference of multimeter current detection value and 20mA whether within the scope of allowable error.
If S7017, in error range, the corresponding DA code of output 24mA is to accessing instrument.
S7018, the current detection value for reading multimeter, and access instrument is written.For step S7010-S7018, touch
Shield the corresponding DA code of unit initialization 4-24mA, and DA code is exported to accessing instrument, universal meter can be with after input DA code
Detect a corresponding current value, such as the corresponding DA code of input 4mA, an electric current I of universal meter detection.It sequentially inputs
The corresponding DA code of 4/12/20mA, and judge whether the difference between 4/12/20mA and I is interior in the error range (CE) of permission, if
All in error range, then enter 24MA calibration mode, the actual current value that record multimeter is read, and instrument progress is written
Calibration, cooperation and the zero point determined, complete the calibration of electric current.
With reference to Fig. 6, step S70 detect voltage analog the following steps are included:
S7020, analog module export minimum weight analog quantity corresponding with minimum target voltage./ simulation weight output
Maximum value and minimum value
S7021, judge multimeter voltage detecting value whether within the scope of minimum target voltage allowable error.
S7022, if it is within range, then analog module exports maximum weight analog quantity corresponding with maximum target voltage.
S7023, judge multimeter voltage detecting value whether within the scope of maximum target voltage allowable error.
S7024, if it is within range determines that access instrument is normal, exports result.
For step S7020- step S7024, minimum weight analog quantity corresponding with minimum target voltage refers to and is inputting
For minimum weight analog quantity to when accessing instrument, multimeter can detect that access instrument generates a detection voltage U, maximum target electricity
Pressure and maximum weight analog quantity are similarly.By judging minimum target voltage and maximum target voltage respectively between detection voltage
Whether whether difference normal to determine to access instrument in allowable error range (VE), and nominal voltage.
This programme simplifies the testing process of access instrument, improves the detection efficiency of access instrument, reduces and avoid detecting
The artificial careless omission that link occurs；And can after the completion of automatic detection can detailed record testing result, in case after staff
It is continuous to call testing result.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, is directly or indirectly transported
Used in other related technical areas, it is also included in the patent protection scope of the utility model.
Claims (4)
1. a kind of instrument automation detection system, which is characterized in that connect including touch screen unit, and with the touch screen unit
Multimeter, PLC module and the analog module connect,
The multimeter is used to measure the voltage and current of access instrument, and is transferred to touch screen unit；
The PLC module carries out designated state for exporting digital output modul access instrument；
The analog module simulates weight signal for exporting analog signals to the access instrument.
2. instrument automation detection system as described in claim 1, which is characterized in that further include having and the touch screen unit
The barcode scanner of connection, the barcode scanner are used to read the barcode data of access instrument.
3. instrument automation detection system as described in claim 1, which is characterized in that the output switch parameter of the access instrument
The input terminal of the PLC module is terminated, the On-off signal of the access instrument terminates the output end of the PLC module, passes through
The touch screen unit controls the timing between the access instrument and the PLC module to test switching value.
4. instrument automation detection system as described in claim 1, which is characterized in that the multimeter passes through RS232 connection
The touch screen unit, the access instrument connect the touch screen unit by RS485.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820721711.1U CN208333659U (en) | 2018-05-15 | 2018-05-15 | Instrument automation detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820721711.1U CN208333659U (en) | 2018-05-15 | 2018-05-15 | Instrument automation detection system |
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| Publication Number | Publication Date |
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| CN208333659U true CN208333659U (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820721711.1U Expired - Fee Related CN208333659U (en) | 2018-05-15 | 2018-05-15 | Instrument automation detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362368A (en) * | 2018-05-15 | 2018-08-03 | 深圳市杰曼科技股份有限公司 | Instrument automation detecting system and weighing instrument automated detection method |
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2018
- 2018-05-15 CN CN201820721711.1U patent/CN208333659U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362368A (en) * | 2018-05-15 | 2018-08-03 | 深圳市杰曼科技股份有限公司 | Instrument automation detecting system and weighing instrument automated detection method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 |