CN206470935U - Desktop wireless transmitter for weighbridge weighing system - Google Patents
Desktop wireless transmitter for weighbridge weighing system Download PDFInfo
- Publication number
- CN206470935U CN206470935U CN201720046953.0U CN201720046953U CN206470935U CN 206470935 U CN206470935 U CN 206470935U CN 201720046953 U CN201720046953 U CN 201720046953U CN 206470935 U CN206470935 U CN 206470935U
- Authority
- CN
- China
- Prior art keywords
- unit
- wireless transmitter
- weighing system
- optocoupler
- receiving unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of desktop wireless transmitter for weighbridge weighing system, including main control module and wireless sending module, the main control module connects the wireless sending module, the wireless sending module includes receiving unit, comparing unit and control unit, and the receiving unit, the comparing unit and described control unit are sequentially connected；The receiving unit is used to receive conversion voltage and exports corresponding voltage signal to the comparing unit；The comparing unit is used to export comparison signal when the voltage signal is more than preset value；Described control unit controls the receiving unit to stop receiving the conversion voltage in response to the comparison signal.The utility model proposes a kind of desktop wireless transmitter for weighbridge weighing system, when changing voltage increase, receiving unit can be disconnected, so that desktop wireless transmitter stops electrical conversion, it is to avoid the generation of wrong data.
Description
Technical field
The utility model is related to weighbridge weighing system technical field, more particularly to a kind of for the wireless of weighbridge weighing system
Desktop transmitter.
Background technology
In industrial environment, control system monitoring and control stock, industry or chemical process etc..Typically, control system makes
These functions are performed with the field apparatus in distribution in industrial processes key position, these field apparatus pass through process control
Loop is connected to the control circuit in control room.Term " field apparatus " refers to times of the perform function in dcs
All known equipment in what equipment, including current measurement and control field.
Generally, in weighbridge weighing system, all including transducer.Transducer mean based on be physically entered generation output signal or
The equipment that physics output is produced based on input signal.Typically, transducer converts the input into various forms of outputs.For example,
Loudspeaker is a kind of transducer for converting electrical signals to acoustic energy.All kinds of transducers include a variety of analytical equipments, pressure sensor,
Thermal resistor, thermocouple, deformeter, flow transmitter, locator, driver, solenoid, indicator lamp etc..
Desktop wireless transmitter falls within one kind of transducer, for example, Application No. CN200510092947.0 patent
Document discloses a kind of device, including：Affine transformation device, affine become is carried out to complex amplitude signal according to affine transformation coefficient
Change, and output has been compensated for signal；Quadrature modulation apparatus, carries out orthogonal modulation, and export modulating wave according to the above-mentioned signal that has been compensated for
Signal；Orthogonal detection device, carrier component is removed from above-mentioned modulation wave signal or in the signal based on above-mentioned modulation wave signal, and
Export complex feedback signal；And control device, according to the linear distortion remained in above-mentioned complex feedback signal, by above-mentioned affine transformation
Coefficient update.
But, this kind of transducer can be influenceed when electrically being changed by external environment, such as magnetic field, electrostatic.
Specifically, if magnetic field is increased suddenly in environment, or influenceed by electrostatic, can cause to change the error on voltage, from
And cause conversion accuracy to be affected.
Utility model content
To solve above-mentioned technical problem, the utility model proposes a kind of desktop wireless transmission for weighbridge weighing system
Device, when changing voltage increase, can disconnect receiving unit, so that desktop wireless transmitter stops electrical conversion, it is to avoid
The generation of wrong data.
The utility model provides a kind of desktop wireless transmitter for weighbridge weighing system, including main control module and nothing
Line sending module, the main control module connects the wireless sending module, and the wireless sending module includes receiving unit, compared
Unit and control unit, the receiving unit, the comparing unit and described control unit are sequentially connected；
The receiving unit is used to receive conversion voltage and exports corresponding voltage signal to the comparing unit；
The comparing unit is used to export comparison signal when the voltage signal is more than preset value；
Described control unit controls the receiving unit to stop receiving the conversion voltage in response to the comparison signal.
As a kind of embodiment, the receiving unit include the first detection mouth, the second detection mouth, first resistor, with
And first optocoupler；
The two ends of the first resistor connect first detection mouth and second detection mouth, first optocoupler respectively
Input and the first resistor it is in parallel, the output end of first optocoupler connects the comparing unit.
As a kind of embodiment, the input and second resistance of first optocoupler are connected, and the second resistance is
Thermo-sensitive resistor.
As a kind of embodiment, described control unit includes the second optocoupler and relay, second optocoupler it is defeated
Enter the end connection comparing unit, the output end of second optocoupler and the coil series connection of the relay, the relay
Switch is connected in the receiving unit.
As a kind of embodiment, the switch of the relay and first resistor series connection.
As a kind of embodiment, the relay is energization delay relay.
The utility model is compared to the beneficial effect of prior art：
The utility model proposes a kind of desktop wireless transmitter for weighbridge weighing system, when changing voltage increase,
Receiving unit can be disconnected, so that desktop wireless transmitter stops electrical conversion, it is to avoid the generation of wrong data.Separately
Outside, energization delay relay has been used, just receiving unit is connected after a period of time after conversion voltage recovers normally, makes nothing
Line desktop transmitter is more stablized.
Brief description of the drawings
The block diagram for the desktop wireless transmitter for weighbridge weighing system that Fig. 1 provides for the utility model；
The schematic diagram for the desktop wireless transmitter for weighbridge weighing system that Fig. 2 provides for the utility model.
In figure：10th, main control module；100th, receiving unit；200th, comparing unit；300th, control unit；20th, mould is transmitted wirelessly
Block.
Embodiment
Below in conjunction with accompanying drawing, and other technical characteristic above-mentioned to the utility model and advantage are carried out clearly and completely
Description, it is clear that described embodiment is only section Example of the present utility model, rather than whole embodiments.
Reference picture 1, the utility model proposes a kind of desktop wireless transmitter for weighbridge weighing system, including master control mould
In block 10 and wireless sending module 20, figure, the connection wireless sending module 20 of main control module 10.Specifically, wireless sending module 20
Including receiving unit 100, comparing unit 200 and control unit 300.In figure, receiving unit 100, comparing unit 200 and
Control unit 300 is sequentially connected.
In fact, receiving unit 100 is used to receive conversion voltage and exports corresponding voltage signal to comparing unit 200；
Comparing unit 200 is used to export comparison signal when voltage signal is more than preset value；Control unit 300 is in response to comparison signal control
Receiving unit 100 processed stops receiving conversion voltage.
Hereinafter, receiving unit 100, comparing unit 200 and control unit 300 are further spread out.
Reference picture 2, receiving unit 100 includes the first detection mouth, the second detection mouth, first resistor and the first optocoupler；This
In specific annexation be that the two ends of first resistor connect the first detection mouth and the second detection mouth respectively, the first optocoupler it is defeated
Enter end and first resistor is in parallel, the output end connection comparing unit 200 of the first optocoupler.Here, using the first detection mouth, the second inspection
Conversion voltage can be received by surveying mouth, and the purpose using the first optocoupler is can to produce Phototube Coupling, isolated strong and weak electricity, made reception
The work of unit 100 is more stablized.
In another embodiment, the input of the first optocoupler and second resistance series connection, second resistance is thermo-sensitive resistor.The
Two resistance serve the effect to the first optocoupler current limliting.When the electric current for flowing through the first optocoupler is excessive, also along with thermo-sensitive resistor
Temperature rise, now, the increase of the resistance of thermo-sensitive resistor reduces the electric current for flowing through thermo-sensitive resistor, the first light is flowed through so as to reduce
The electric current of coupling.
Reference picture 2, control unit 300 includes the second optocoupler and relay, the input connection comparing unit of the second optocoupler
200, the output end of the second optocoupler and the coil of relay are connected, and the switch of relay is connected in receiving unit 100.Relay
Switch and first resistor series connection.Here, when changing voltage increase, receiving unit 100 can be disconnected, so that wireless table
Face transmitter stops electrical conversion, it is to avoid the generation of wrong data.
In another embodiment, relay is energization delay relay.When changing one section after voltage recovers normally
Between after just receiving unit 100 is connected, make desktop wireless transmitter more stablize.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
The detailed description of step, it will be appreciated that the foregoing is only specific embodiment of the utility model, is not used to limit this reality
With new protection domain.Particularly point out, to those skilled in the art, it is all it is of the present utility model spirit and principle it
Interior, any modification, equivalent substitution and improvements done etc. should be included within protection domain of the present utility model.
Claims (6)
1. a kind of desktop wireless transmitter for weighbridge weighing system, including main control module and wireless sending module, its feature
Be, the main control module connects the wireless sending module, the wireless sending module include receiving unit, comparing unit,
And control unit, the receiving unit, the comparing unit and described control unit are sequentially connected；
The receiving unit is used to receive conversion voltage and exports corresponding voltage signal to the comparing unit；
The comparing unit is used to export comparison signal when the voltage signal is more than preset value；
Described control unit controls the receiving unit to stop receiving the conversion voltage in response to the comparison signal.
2. the desktop wireless transmitter according to claim 1 for weighbridge weighing system, it is characterised in that the reception
Unit includes the first detection mouth, the second detection mouth, first resistor and the first optocoupler；
The two ends of the first resistor connect first detection mouth and second detection mouth respectively, first optocoupler it is defeated
Enter end and the first resistor is in parallel, the output end of first optocoupler connects the comparing unit.
3. the desktop wireless transmitter according to claim 2 for weighbridge weighing system, it is characterised in that described first
Input and the second resistance series connection of optocoupler, the second resistance is thermo-sensitive resistor.
4. the desktop wireless transmitter according to claim 2 for weighbridge weighing system, it is characterised in that the control
Unit includes the second optocoupler and relay, and the input of second optocoupler connects the comparing unit, second optocoupler
The coil series connection of output end and the relay, the switch of the relay is connected in the receiving unit.
5. the desktop wireless transmitter according to claim 4 for weighbridge weighing system, it is characterised in that the relay
The switch of device and first resistor series connection.
6. the desktop wireless transmitter according to claim 4 for weighbridge weighing system, it is characterised in that the relay
Device is energization delay relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720046953.0U CN206470935U (en) | 2017-01-16 | 2017-01-16 | Desktop wireless transmitter for weighbridge weighing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720046953.0U CN206470935U (en) | 2017-01-16 | 2017-01-16 | Desktop wireless transmitter for weighbridge weighing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206470935U true CN206470935U (en) | 2017-09-05 |
Family
ID=59705783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720046953.0U Expired - Fee Related CN206470935U (en) | 2017-01-16 | 2017-01-16 | Desktop wireless transmitter for weighbridge weighing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206470935U (en) |
-
2017
- 2017-01-16 CN CN201720046953.0U patent/CN206470935U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170905 Termination date: 20220116 |