CN106468897B - Interface device and processing system - Google Patents
Interface device and processing system Download PDFInfo
- Publication number
- CN106468897B CN106468897B CN201510522270.3A CN201510522270A CN106468897B CN 106468897 B CN106468897 B CN 106468897B CN 201510522270 A CN201510522270 A CN 201510522270A CN 106468897 B CN106468897 B CN 106468897B
- Authority
- CN
- China
- Prior art keywords
- control signal
- processing
- conversion module
- control device
- electronic switch
- 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
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2612—Data acquisition interface
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Logic Circuits (AREA)
- Electronic Switches (AREA)
Abstract
The invention relates to an interface device and a processing system, wherein the interface device comprises: a plurality of processing channels, each processing channel being operable to convert a received control signal of a particular type into a control signal suitable for the control device and output to the control device; and an electronic switch for performing a respective switching operation based on a switching instruction from the control device to select a respective processing channel of the plurality of processing channels to process a control signal to be provided to the control device. The interface device and the processing system are convenient for users to use and have higher reliability.
Description
Technical Field
The invention relates to an interface device and a processing system.
Background
In an industrial control device such as a frequency converter, a variety of control signal interfaces are generally provided for a user to realize the design of a user control system, wherein the interfaces include a digital input interface, a digital output interface, an analog input interface, an analog output interface and the like.
The analog input interface is used to convert a control signal, for example, to be externally supplied to the industrial control device, into a control signal suitable for the industrial control device. The control signal to be supplied to the industrial control device generally includes a voltage signal of-10V to +10V, a voltage signal of 0V to +10V, a current signal of 4mA to 20mA, or a current signal of 0mA to 20 mA.
Originally, each analog input interface of the industrial control device was a single-function input interface circuit that can convert only one of a voltage signal of-10V to +10V, a voltage signal of 0V to +10V, a current signal of 4mA to 20mA, and a current signal of 0mA to 20mA into a control signal suitable for the industrial control device. Because the interface circuit of the single-function input can not be flexibly configured by the user, certain limitation exists in the use process, and the use requirement can not be met.
To overcome the disadvantages of the single-function input interface circuit, each analog input interface of the current industrial control device is generally a multi-function input interface circuit which can convert a plurality of different types of control signals to be provided to the industrial control device into control signals suitable for the industrial control device. Fig. 1 shows a schematic diagram of a conventional interface circuit capable of multi-function input, where k1 denotes a current-voltage conversion module for converting a current-type signal into a voltage-type signal, k2 and k3 denote voltage conversion modules for converting a voltage-type signal into another voltage-type signal via voltage reduction processing, k4 denotes a voltage offset conversion module for converting a voltage-type signal into another voltage-type signal via voltage offset processing and voltage reduction processing, k5 denotes an industrial control device, and k6 denotes a jumper or a mechanical switch. The interface circuit shown in fig. 1 is provided with a jumper or a mechanical switch k6, and by the corresponding operation of the jumper or the mechanical switch k6 by a user, the interface circuit can cause the control signal CC to be supplied to the industrial control device k5, that is, the voltage signal of-10V to +10V, the voltage signal of 0V to +10V, and the current signal of 4mA to 20mA, to be differently processed, thereby enabling them to be converted into a control signal suitable for the industrial control device k 5.
As shown in fig. 1, the conventional interface circuit capable of multi-function input needs to be provided with a jumper or a mechanical switch, and the jumper or the mechanical switch is manually operated by a user to implement the multi-function input function.
However, the mechanical switch or jumper provided on the multifunctional input interface circuit is usually small, and the user is very hard to operate the multifunctional input interface circuit, so that the existing multifunctional input interface circuit is inconvenient for the user to use. In addition, for the convenience of user operation, the mechanical switch or jumper disposed in the interface circuit needs to be exposed, which easily causes the mechanical switch or jumper to fail, thereby reducing the reliability of the interface circuit.
Disclosure of Invention
Embodiments of the present invention provide an interface apparatus and a processing system that may overcome the above disadvantages of the prior art.
An interface apparatus according to an embodiment of the present invention includes: a plurality of processing channels, each processing channel being operable to convert a received control signal of a particular type into a control signal suitable for the control device and output to the control device; and an electronic switch for performing a respective switching operation based on a switching instruction from the control device to select a respective processing channel of the plurality of processing channels to process a control signal to be provided to the control device.
Wherein the plurality of processing channels comprises processing channels for converting received current type control signals into specified voltage type control signals suitable for the control device and/or processing channels for converting received other voltage type control signals into the specified voltage type control signals.
Wherein the plurality of processing channels includes a first processing channel for converting the received control signal of the first current type into the control signal of the specified voltage type, a second processing channel for converting the received control signal of the first voltage type into the control signal of the specified voltage type, and a third processing channel for converting the received control signal of the second voltage type into the control signal of the specified voltage type.
Wherein the first processing channel includes a first conversion module for converting the control signal of the first current type into a voltage signal and a second conversion module for converting the converted voltage signal into the control signal of the specified voltage type through a level reduction process, the second processing channel includes a third conversion module for converting the control signal of the first voltage type into the control signal of the specified voltage type through the level reduction processing, and the third processing channel includes a fourth conversion module for converting the control signal of the second voltage type into a control signal of a third voltage type through the level-reduction processing and a fifth conversion module for converting the control signal of the third voltage type into the control signal of the specified voltage type through a level-shift processing.
Wherein the second conversion module, the third conversion module, and the fourth conversion module are the same conversion module, wherein the electronic switch includes a first electronic switch and a second electronic switch, wherein the first electronic switch causes the control signal to be supplied to the control device to be input to the first conversion module when the first processing channel is selected, and the second electronic switch causes the signal output by the same conversion module to be transmitted to the control device, wherein the first electronic switch causes the control signal to be supplied to the control device to be input to the same conversion module when the second processing channel is selected, and the second electronic switch causes the signal output by the same conversion module to be transmitted to the control device, wherein when the third processing channel is selected, the first electronic switch causes the control signal to be supplied to the control device to be input to the same conversion module, and the second electronic switch causes the signal output by the same conversion module to be input to the fifth conversion module.
A processing system according to an embodiment of the invention includes: a control device for outputting a corresponding switching indication based on a type of a control signal set by a user to be provided to the control device; a plurality of processing channels, each processing channel being operable to convert a received control signal of a particular type into a control signal suitable for the control device and output to the control device; and an electronic switch for performing a respective switching operation based on the switching indication from the control device to select a respective processing channel of the plurality of processing channels to process the control signal to be provided to the control device.
Wherein the plurality of processing channels comprises processing channels for converting received current type control signals into specified voltage type control signals suitable for the control device and/or processing channels for converting received other voltage type control signals into the specified voltage type control signals.
Wherein the plurality of processing channels includes a first processing channel for converting the received control signal of the first current type into the control signal of the specified voltage type, a second processing channel for converting the received control signal of the first voltage type into the control signal of the specified voltage type, and a third processing channel for converting the received control signal of the second voltage type into the control signal of the specified voltage type.
Wherein the first processing channel includes a first conversion module for converting the control signal of the first current type into a voltage signal and a second conversion module for converting the converted voltage signal into the control signal of the specified voltage type through a level reduction process, the second processing channel includes a third conversion module for converting the control signal of the first voltage type into the control signal of the specified voltage type through the level reduction processing, and the third processing channel includes a fourth conversion module for converting the control signal of the second voltage type into a control signal of a third voltage type through the level-reduction processing and a fifth conversion module for converting the control signal of the third voltage type into the control signal of the specified voltage type through a level-shift processing.
Wherein the second conversion module, the third conversion module, and the fourth conversion module are the same conversion module, wherein the electronic switch includes a first electronic switch and a second electronic switch, wherein the first electronic switch causes the control signal to be supplied to the control device to be input to the first conversion module when the first processing channel is selected, and the second electronic switch causes the signal output by the same conversion module to be transmitted to the control device, wherein the first electronic switch causes the control signal to be supplied to the control device to be input to the same conversion module when the second processing channel is selected, and the second electronic switch causes the signal output by the same conversion module to be transmitted to the control device, wherein when the third processing channel is selected, the first electronic switch causes the control signal to be supplied to the control device to be input to the same conversion module, and the second electronic switch causes the signal output by the same conversion module to be input to the fifth conversion module.
As can be seen from the above description, the switching operation of the electronic switch of the interface device according to the embodiment of the present invention is controlled by the control device, and does not need to be manually adjusted by the user, so that the interface device according to the embodiment of the present invention is very convenient for the user to use compared with the prior art. In addition, since the electronic switch of the interface device of the embodiment of the present invention does not need to be manually adjusted by a user, the electronic switch can be packaged to reduce the possibility of failure, so that the interface device of the embodiment of the present invention has higher reliability compared to the prior art.
Drawings
Other features, characteristics, benefits and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. In the drawings:
FIG. 1 is a schematic diagram of an interface circuit for a multifunctional input;
FIG. 2 shows a schematic diagram of a processing system according to one embodiment of the invention;
fig. 3 shows a schematic diagram of a specific implementation of the first electronic switch, the first conversion module and the second conversion module according to an embodiment of the present invention; and
fig. 4 shows a schematic diagram of a specific implementation of the second electronic switch and the third conversion module according to an embodiment of the present invention.
Detailed Description
An embodiment of the present invention provides a multifunctional input interface apparatus, which includes a plurality of processing channels and an electronic switch, wherein each processing channel is operable to convert a received control signal of a specific type into a control signal suitable for a control device and output the control signal to the control device, and the electronic switch is operable to perform a corresponding switching operation based on a switching instruction from the control device to select a corresponding processing channel of the plurality of processing channels to process the control signal to be provided to the control device. Here, the switching operation of the electronic switch of the interface apparatus according to the embodiment of the present invention is controlled by the control device, and does not need manual adjustment by the user, so that the interface apparatus according to the embodiment of the present invention is very convenient for the user to use. In addition, since the electronic switch of the interface device according to the embodiment of the present invention does not need to be manually adjusted by a user, the electronic switch may be packaged to reduce the possibility of failure, so that the interface device according to the embodiment of the present invention has high reliability.
Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 2 shows a schematic diagram of a processing system according to one embodiment of the invention. As shown in fig. 2, the processing system 10 includes a control device 102, a first electronic switch 106, a second electronic switch 108, a first conversion module 112, a second conversion module 116, and a third conversion module 120.
The control device 102 is configured to perform a corresponding operation according to the received control signal. In the present embodiment, it is assumed that the control signal applied to the control device 102 is a voltage signal of 0V to +3V, and the control signal CC to be externally supplied to the control device 102 is a voltage signal of-10V to +10V, a voltage signal of 0V to +10V, or a current signal of 4mA to 20 mA. After knowing the type of control signal CC to be externally provided to the control device 102 (i.e., a voltage signal of-10V to +10V, a voltage signal of 0V to +10V, or a current signal of 4mA to 20 mA), the user can set the type of control signal CC to be provided to the control device 102 in the control device 102. The control device 102 generates a corresponding switching instruction according to the type of the control signal CC set by the user to be provided to the control device 102, and outputs the switching instruction to the first electronic switch 106 and the second electronic switch 108. Wherein, when the control signal CC to be supplied to the control device 102 is a current signal of 4mA to 20mA, the control device 102 generates and outputs a first switching instruction; when the control signal CC to be supplied to the control device 102 is a voltage signal of 0V to +10V, the control device 102 generates and outputs a second switching instruction; and, when the control signal CC to be supplied to the control device 102 is a voltage signal of-10V to +10V, the control device 102 generates and outputs a third switching instruction.
The first conversion module 112 is used for converting the current signal of 4 mA-20 mA into a voltage signal of 0V- + 10V.
The second conversion module 116 is used for converting the voltage signal of 0V to +10V into the voltage signal of 0V to +3V or converting the voltage signal of-10V to +10V into the voltage signal of-3V to +3V through the level reduction process.
The third converting module 120 is used for converting the voltage signals of-3V- +3V into voltage signals of 0V- +3V through level shift processing.
Here, three processing channels TD1, TD2, and TD3 may be formed by different combinations of the first conversion module 112, the second conversion module 116, and the third conversion module 120. The processing channel TD1 includes a first converting module 112 and a second converting module 116, which are used to convert the control signal CC, i.e. the current signal of 4mA to 20mA, to be provided to the control device 102 into a voltage signal of 0V to +3V suitable for the control device 102 and output the voltage signal to the control device 102. The processing channel TD2 includes a second conversion module 116 for converting the control signal CC, i.e. the voltage signal of 0V to +10V, to be supplied to the control device 102 into the voltage signal of 0V to +3V suitable for the control device 102 and outputting to the control device 102. The processing channel TD3 includes a second conversion module 116 and a third conversion module 120 for converting the control signal CC to be supplied to the control device 102, i.e., the voltage signal of-10V to +10V, into the voltage signal of 0V to +3V suitable for the control device 102 and outputting to the control device 102.
The first electronic switch 106 and the second electronic switch 108 are connected to the control device 102 and the processing channels TD1, TD2 and TD3 for performing respective switching operations according to switching instructions from the control device 102 to select respective ones of the processing channels TD1, TD2 and TD3 for processing the control signal CC to be provided to the control device 102.
Specifically, when the switching instruction from the control device 102 is the first switching instruction, the first electronic switch 106 and the second electronic switch 108 perform the first switching operation to select the processing channel TD1 to process the control signal CC to be supplied to the control device 102, i.e., the current signal of 4mA to 20 mA. In this case, the first electronic switch 106 causes the current signal of 4mA to 20mA to be supplied to the control device 102 to be input to the first conversion module 112, the first conversion module 112 converts the received current signal of 4mA to 20mA into the voltage signal of 0V to +10V and outputs to the second conversion module 116, the second conversion module 116 converts the voltage signal of 0V to +10V from the first conversion module 112 into the voltage signal of 0V to +3V and outputs, and the second electronic switch 108 causes the voltage signal of 0V to +3V output from the second conversion module 116 to be transmitted to the control device 102.
When the switching instruction from the control device 102 is the second switching instruction, the first electronic switch 106 and the second electronic switch 108 perform the second switching operation to select the processing channel TD2 to process the control signal CC, i.e., the voltage signal of 0V to +10V, to be supplied to the control device 102. In this case, the first electronic switch 106 causes the voltage signal of 0V to +10V to be supplied to the control device 102 to be input to the second conversion module 116, the second conversion module 116 converts the received voltage signal of 0V to +10V into the voltage signal of 0V to +3V and outputs, and the second electronic switch 108 causes the voltage signal of 0V to +3V output by the second conversion module 116 to be transmitted to the control device 102.
When the switching instruction from the control device 102 is a third switching instruction, the first electronic switch 106 and the second electronic switch 108 perform a third switching operation to select the processing channel TD3 to process the control signal CC to be supplied to the control device 102, that is, the voltage signal of-10V to + 10V. In this case, the first electronic switch 106 causes the voltage signal of-10V to +10V to be supplied to the control device 102 to be input to the second conversion module 116, the second conversion module 116 converts the received voltage signal of-10V to +10V into the voltage signal of-3V to +3V and outputs, the second electronic switch 108 causes the voltage signal of-3V to +3V output from the second conversion module 116 to be transmitted to the third conversion module 120, and the third conversion module 120 converts the received voltage signal of-3V to +3V into the voltage signal of 0V to +3V and outputs to the control device 102.
The first electronic switch 106, the second electronic switch 108, and the processing channels TD1, TD2, TD3 form an interface device of the processing system 10.
Fig. 3 shows a schematic diagram of a specific implementation of the first electronic switch, the first conversion module and the second conversion module according to an embodiment of the present invention. As shown in fig. 3, the first electronic switch 106 is a field effect transistor T1 whose gate S1 is controlled by the control device 102, the first converting module 112 is a resistor network RN1 for converting the current signal into the voltage signal, and the second converting module 116 is a voltage dividing circuit formed by two resistors R11 and R12 connected in series, wherein the resistances of the resistors R11 and R12 are much larger than the resistance of the resistor network RN 1.
The field effect transistor T1 and the resistor network RN1 are connected in series, and the series connected field effect transistor T1 and the resistor network RN1 are connected in parallel with a voltage dividing circuit formed by the resistors R11 and R12.
When the switching indication output by the control device 102 is the first switching indication, the control command SS1 supplied from the control device 102 to the gate S1 of the field effect transistor T1 is at a high level, so that the field effect transistor T1 is in a turned-on state. In this case, the control signal CC to be supplied to the control device 102, i.e. a current signal of 4mA to 20mA, flows through the resistance network RN1 and into ground via the field effect transistor T1. Since the current signal of 4mA to 20mA flows through the resistor network RN1, the resistor network RN1 generates a voltage signal of 0V to +10V (the resistance of the field effect transistor T1 in the on state is small, and the generated voltage is small and can be ignored). The voltage signal of 0V to +10V generated by the resistor network RN1 is provided to the voltage dividing circuit formed by the resistors R11 and R12, and after the voltage division by the resistor R11, the voltage dividing circuit formed by the resistors R11 and R12 outputs the voltage signal of 0V to +3V at the output terminal Vout1 (i.e., the output terminal of the second conversion module 116).
When the switching indication output by the control device 102 is the second switching indication or the third switching indication, the control command SS1 that the control device 102 supplies to the gate S1 of the field effect transistor T1 is at a low level, so that the field effect transistor T1 is in an off state. In this case, the control signal CC to be supplied to the control device 102, i.e., the voltage signal of V to +10V or the voltage signal of-10V to +10V, is directly supplied to the voltage dividing circuit formed by the resistors R11 and R12, and after being divided by the resistor R1, the voltage dividing circuit formed by the resistors R11 and R12 outputs the voltage signal of 0V to +3V or the voltage signal of-3V to +3V at the output terminal Vout1 thereof.
Fig. 4 shows a schematic diagram of a specific implementation of the second electronic switch and the third conversion module according to an embodiment of the present invention. As shown in fig. 4, the second electronic switch 108 is an analog switch U1 whose control terminal is controlled by the control device 102, and the third conversion module 120 is composed of resistors R1, R2, R3, R4, R5, and R6, and operational amplifiers U2 and U3.
The input terminal Vin1 of the analog switch U1 is connected to the output terminal of the second conversion module 116, the control terminal C1 of the analog switch U1 is connected to the control device 102, the first output terminal O1 of the analog switch U1 is connected to the control device 102, and the second output terminal O2 of the analog switch U1 is connected to the third conversion module 120.
In the third conversion module 120, resistors R1 and R2 are connected in series between the power supply Vcc and ground, the non-inverting input of the operational amplifier U2 is connected between the resistors R1 and R2, and the inverting input of the operational amplifier U2 is connected to the output of the operational amplifier U2.
One end of the resistor R5 is connected to the second output O2 of the analog switch U1, the other end of the resistor R5 is connected to ground via a resistor R6, the non-inverting input of the operational amplifier U3 is connected between the resistors R5 and R6, the inverting input of the operational amplifier U3 is connected to the output of the operational amplifier U2 via a resistor R3 and to the output of the operational amplifier U3 via a resistor R4, and the output Vout2 of the operational amplifier U3 is connected to the control device 102.
The operational amplifier U2 is used to generate a reference voltage, i.e., an offset Vref of the signal, and the operational amplifier U3 is used to offset the signal received at its non-inverting input from the offset Vref received at its inverting input from the output of the operational amplifier U2 to obtain a voltage signal of a desired level and send it to the control device 102 through its output Vout 2.
When the switching indication outputted by the control device 102 is the first switching indication or the second switching indication, the control device 102 provides the control command SS2 to the control terminal C1 of the analog switch U1 to make the input terminal Vin1 of the analog switch U1 communicate with the first output terminal O1 thereof, so that the signal outputted by the second conversion module 116, i.e., the voltage signal of 0V to +3V, is inputted to the control device 102 via the analog switch U1.
When the switching indication outputted by the control device 102 is the third switching indication, the control command SS2 provided by the control device 102 to the control terminal C1 of the analog switch U1 makes the input terminal Vin1 of the analog switch U1 communicate with the second output terminal O2 thereof, so that the signal outputted by the second conversion module 116, i.e., the voltage signal of-3V to +3V, is inputted to the third conversion module 120 via the analog switch U1. The third conversion module 120 outputs a voltage signal of 0V to +3V to the control device 102 after offsetting the voltage signal of-3V to +3V by the operational amplifier U3.
Other variants
Those skilled in the art will appreciate that, although fig. 3 and 4 show specific implementations of the first, second and third conversion modules 112, 116 and 120 in the above embodiments, the first, second and third conversion modules 112, 116 and 120 of the present invention are not limited to the specific implementations shown in fig. 3 and 4. In other embodiments of the present invention, the first conversion module 112, the second conversion module 116, and the third conversion module 120 of the present invention may be implemented in other ways.
Those skilled in the art will appreciate that although in fig. 3 the first electronic switch 106 is implemented by a field effect transistor, the present invention is not limited thereto. In some other embodiments of the present invention, the first electronic switch 106 may be implemented by other types of controllable switching devices, such as a triode, a thyristor, and the like.
It will be appreciated by those skilled in the art that although in the above embodiments the processing channels TD1, TD2, TD3 share the same conversion module, i.e. the second conversion module 116, the invention is not limited thereto. In some other embodiments of the present invention, the processing channels TD1, TD2, TD3 do not share the same second conversion module 116, but instead the processing channels TD1, TD2, TD3 each use a different second conversion module 116. That is, the interface device of the processing system 10 comprises three second conversion modules 116, wherein each of the processing channels TD1, TD2, TD3 uses one of the three second conversion modules 116. In the case that the processing channels TD1, TD2, TD3 each use a different second conversion module 116, the first electronic switch 106 and the second electronic switch 108 may be replaced by an analog switch MN having three output terminals, wherein the three output terminals of the analog switch MN are respectively connected to the processing channels TD1, TD2, TD3, and the analog switch MN may perform a corresponding switching operation according to a switching instruction from the control device 102 to provide a control signal to be provided to the control device 102 to a corresponding one of the processing channels TD1, TD2, TD3 for processing.
It will be appreciated by those skilled in the art that although in the above embodiment the interface device of the processing system 10 comprises three processing channels TD1, TD2, TD3, the invention is not limited thereto. In other embodiments of the present invention, the processing system 10 interface device may include two or more than three processing channels.
It will be appreciated by those skilled in the art that although in the above embodiments the interface means of the processing system 10 comprise both processing channels (e.g. processing channel TD1) for converting received current type control signals into control signals suitable for controlling the device 102 and processing channels (e.g. processing channels TD2, TD3) for converting other voltage type control signals into control signals suitable for controlling the device 102, the invention is not limited thereto. In other embodiments of the present invention, the interface device of the processing system 10 may include only a plurality of processing channels for converting received control signals of different current types into control signals suitable for controlling the device 102, or the interface device may include only a plurality of processing channels for converting received control signals of other different voltage types into control signals suitable for controlling the device 102.
Those skilled in the art will appreciate that although in the above embodiments the control signal suitable for controlling the device 102 is a voltage signal of 0V to +3V, the present invention is not limited thereto. In other embodiments of the present invention, the control signal suitable for controlling the device 102 may also be other types of voltage signals or current signals.
Those skilled in the art will understand that, although in the above embodiments, the control signals to be supplied to the control device 102 are the voltage signal of-10V to +10V, the voltage signal of 0V to +10V, and the current signal of 4mA to 20mA, the present invention is not limited thereto. In other embodiments of the present invention, the control signal to be provided to the control device 102 may also be other types of voltage signals and/or current signals.
It will be understood by those skilled in the art that various changes and modifications may be made in the above-described embodiments without departing from the spirit of the invention, and these changes and modifications should fall within the scope of the invention. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. An interface device, comprising:
a plurality of processing channels, each processing channel operable to convert a received control signal of a particular type into a control signal suitable for a control device (102) and output to the control device (102); and
an electronic switch (106, 108) for performing a respective switching operation based on a switching indication from the control device (102) to select a respective processing channel of the plurality of processing channels to process a control signal to be provided to the control device (102);
wherein the switching indication is output by the control device (102) based on a type of control signal set by a user to be provided to the control device (102); the corresponding processing channel selected by the switching operation of the electronic switch converts the received control signal into a control signal of a set type and outputs the control signal to the control device (102).
2. The interface device of claim 1, wherein
The plurality of processing channels comprises processing channels for converting received current type control signals into specified voltage type control signals suitable for the control device (102) and/or processing channels for converting received other voltage type control signals into the specified voltage type control signals.
3. The interface device of claim 2, wherein
The plurality of processing lanes including a first processing lane, a second processing lane, and a third processing lane,
wherein the first processing channel is configured to convert the received control signal of the first current type into the control signal of the specified voltage type,
the second processing channel is used for converting the received control signal of the first voltage type into the control signal of the specified voltage type, an
The third processing channel is used for converting the received control signal of the second voltage type into the control signal of the specified voltage type.
4. An interface device as claimed in claim 3, wherein
The first processing channel includes a first conversion module (112) for converting the control signal of the first current type into a voltage signal and a second conversion module for converting the converted voltage signal into the control signal of the specified voltage type by a level reduction process,
the second processing channel includes a third conversion module for converting the control signal of the first voltage type into the control signal of the specified voltage type by the level reduction processing, and
the third processing channel comprises a fourth conversion module for converting the control signal of the second voltage type into a control signal of a third voltage type by the level reduction processing and a fifth conversion module (120) for converting the control signal of the third voltage type into the control signal of the specified voltage type by a level shift processing.
5. The interface device of claim 4, wherein
The second, third and fourth conversion modules are the same conversion module (116),
wherein the electronic switch comprises a first electronic switch (106) and a second electronic switch (108),
wherein, when the first processing channel is selected, the first electronic switch (106) causes the control signal to be provided to the control device (102) to be input to the first conversion module (112), and the second electronic switch (108) causes the signal output by the same conversion module (116) to be sent to the control device (102),
wherein the first electronic switch (106) causes the control signal to be provided to the control device (102) to be input to the same conversion module (116) and the second electronic switch (108) causes the signal output by the same conversion module (116) to be sent to the control device (102) when the second processing channel is selected,
wherein, when the third processing channel is selected, the first electronic switch (106) causes the control signal to be provided to the control device (102) to be input to the same conversion module (116), and the second electronic switch (108) causes the signal output by the same conversion module (116) to be input to the fifth conversion module (120).
6. A processing system (10), comprising:
a control device (102) for outputting a corresponding switching indication based on a type of control signal set by a user to be provided to the control device (102);
a plurality of processing channels, each processing channel operable to convert a received control signal of a particular type into a control signal suitable for the control device (102) and output to the control device (102); and
an electronic switch (106, 108) for performing a respective switching operation based on the switching indication from the control device (102) to select a respective processing channel of the plurality of processing channels to process the control signal to be provided to the control device (102);
wherein the corresponding processing channel selected by the switching operation of the electronic switch converts the received control signal into a control signal of a type set by a user and outputs the control signal to the control device (102).
7. The processing system (10) of claim 6, wherein
The plurality of processing channels includes processing channels for converting received current type control signals to specified voltage type control signals suitable for the control device and/or processing channels for converting received other voltage type control signals to the specified voltage type control signals.
8. The processing system (10) of claim 7, wherein
The plurality of processing lanes including a first processing lane, a second processing lane, and a third processing lane,
wherein the first processing channel is configured to convert the received control signal of the first current type into the control signal of the specified voltage type,
the second processing channel is used for converting the received control signal of the first voltage type into the control signal of the specified voltage type, an
The third processing channel is used for converting the received control signal of the second voltage type into the control signal of the specified voltage type.
9. The processing system (10) of claim 8, wherein
The first processing channel includes a first conversion module (112) for converting the control signal of the first current type into a voltage signal and a second conversion module for converting the converted voltage signal into the control signal of the specified voltage type by a level reduction process,
the second processing channel includes a third conversion module for converting the control signal of the first voltage type into the control signal of the specified voltage type by the level reduction processing, and
the third processing channel comprises a fourth conversion module for converting the control signal of the second voltage type into a control signal of a third voltage type by the level reduction processing and a fifth conversion module (120) for converting the control signal of the third voltage type into the control signal of the specified voltage type by a level shift processing.
10. The processing system (10) of claim 9, wherein
The second, third and fourth conversion modules are the same conversion module (116),
wherein the electronic switches (106, 108) comprise a first electronic switch (106) and a second electronic switch (108),
wherein, when the first processing channel is selected, the first electronic switch (106) causes the control signal to be provided to the control device (102) to be input to the first conversion module (112), and the second electronic switch (108) causes the signal output by the same conversion module (116) to be sent to the control device (102),
wherein the first electronic switch (106) causes the control signal to be provided to the control device (102) to be input to the same conversion module (116) and the second electronic switch (108) causes the signal output by the same conversion module (116) to be sent to the control device (102) when the second processing channel is selected,
wherein, when the third processing channel is selected, the first electronic switch (106) causes the control signal to be provided to the control device (102) to be input to the same conversion module (116), and the second electronic switch (108) causes the signal output by the same conversion module (116) to be input to the fifth conversion module (120).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510522270.3A CN106468897B (en) | 2015-08-21 | 2015-08-21 | Interface device and processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510522270.3A CN106468897B (en) | 2015-08-21 | 2015-08-21 | Interface device and processing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106468897A CN106468897A (en) | 2017-03-01 |
| CN106468897B true CN106468897B (en) | 2021-01-12 |
Family
ID=58229778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510522270.3A Expired - Fee Related CN106468897B (en) | 2015-08-21 | 2015-08-21 | Interface device and processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106468897B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101471611B1 (en) * | 2013-07-19 | 2014-12-11 | 전자부품연구원 | Multi-channel SAR-typed ADC apparatus with reference voltage fluctuation preventing scheme and method using the same |
| CN204044558U (en) * | 2014-07-23 | 2014-12-24 | 淮安信息职业技术学院 | There is the bus-type signal converting controller of 4 road DI/AO ALT-CH alternate channels |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101119115B (en) * | 2006-08-03 | 2011-06-01 | 深圳达实智能股份有限公司 | Multi-channel A/D conversion device and method |
| JP4938425B2 (en) * | 2006-11-30 | 2012-05-23 | オンセミコンダクター・トレーディング・リミテッド | Switching control circuit |
| CN102650854A (en) * | 2012-04-23 | 2012-08-29 | 广州市新锘威智能科技有限公司 | Input/output passage multiplexing intelligent controller |
| CN103631176B (en) * | 2013-08-30 | 2017-01-25 | 天津大学 | FPGA-based ultrahigh-speed industrial controller |
| CN103605396B (en) * | 2013-11-22 | 2015-12-09 | 苏州汇川技术有限公司 | Output current of converter treatment circuit and method |
| CN103634008B (en) * | 2013-11-29 | 2017-02-08 | 深圳市虹远通信有限责任公司 | Multi-channel signal collecting device and collecting method |
-
2015
- 2015-08-21 CN CN201510522270.3A patent/CN106468897B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101471611B1 (en) * | 2013-07-19 | 2014-12-11 | 전자부품연구원 | Multi-channel SAR-typed ADC apparatus with reference voltage fluctuation preventing scheme and method using the same |
| CN204044558U (en) * | 2014-07-23 | 2014-12-24 | 淮安信息职业技术学院 | There is the bus-type signal converting controller of 4 road DI/AO ALT-CH alternate channels |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106468897A (en) | 2017-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102182026B1 (en) | Constant voltage circuit | |
| CN207490897U (en) | Voltage driver circuits | |
| JP6135940B2 (en) | I / O module | |
| CN106921379B (en) | Input circuit | |
| US20160149492A1 (en) | Voltage adjusting apparatus | |
| CN106468897B (en) | Interface device and processing system | |
| JP2010258950A (en) | Comparison circuit, integrated circuit device, and electronic apparatus | |
| JP2018019322A (en) | Ringing suppression circuit | |
| US9846671B2 (en) | Bidirectional data transmission system | |
| CN112039550B (en) | Communication device, receiving unit and transmitting unit thereof | |
| CN107196639B (en) | Multi-path parallel bidirectional level conversion circuit | |
| JP6985491B2 (en) | How to convert level values in level transducers and vehicle controls | |
| US10228399B2 (en) | Configurable smart sensor systems | |
| US9559676B1 (en) | Output buffer apparatus for controlling rate of rising/falling edge of buffered signal | |
| WO2017122297A1 (en) | Electronic device and fa device | |
| US9271072B2 (en) | Analog input module | |
| KR101548349B1 (en) | Multi-channel switch driving device | |
| CN210958329U (en) | Control circuit for controlling and switching analog input mode | |
| CN216625712U (en) | Universal interface multiplexing circuit and device | |
| CN103023285A (en) | Novel high-frequency switch drive control circuit | |
| CN109815185B (en) | Host for realizing two-wire system bus | |
| WO2009155744A1 (en) | Signal converting circuit and isolation amplifier | |
| JPH03283741A (en) | Signal transfer circuit | |
| US9979330B2 (en) | Three-phase motor control apparatus | |
| CN107809175B (en) | Switching power supply, numerical control voltage source and numerical control adjustable reference source chip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20210112 |