CN207650301U - A kind of extension card identifying system and power electronic equipment - Google Patents
A kind of extension card identifying system and power electronic equipment Download PDFInfo
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- CN207650301U CN207650301U CN201721786743.1U CN201721786743U CN207650301U CN 207650301 U CN207650301 U CN 207650301U CN 201721786743 U CN201721786743 U CN 201721786743U CN 207650301 U CN207650301 U CN 207650301U
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Abstract
The utility model discloses a kind of extension card identifying system and power electronic equipment, which includes：Main control board and multiple and different extension card modules；Main control board includes the control unit being electrically connected and expansion interface；Each extension card module includes the expansion card being electrically connected and partial pressure unit；Wherein, when each extension card module is electrically connected by expansion interface and main control board, main control board provides supply voltage to each extension card module, partial pressure unit divides the supply voltage to generate the corresponding predeterminated voltage signal of the expansion card and be output on main control board by expansion interface, and control unit is by detecting the predeterminated voltage signal to identify the expansion card.Supply voltage is divided by one partial pressure unit of setting and is output on main control board with generating predeterminated voltage signal to identify expansion card by this programme, and then realizes the purpose for accurately identifying different types of expansion card.
Description
Technical field
The utility model is related to field of power electronics, relates more specifically to a kind of extension card identifying system and power electronics is set
It is standby.
Background technology
Currently, being limited to the system structure of power electronic equipment, electric property, mechanical-physical structure and manufacturing cost etc.
The main control board of many factors, power electronic equipment can only be designed according to the common requirements for meeting user, can not meet portion
Divide the specific demand of user group.Therefore, in order to adapt to the various demands of user, expansion generally can be all designed on main control board
Interface is opened up, external miscellaneous expansion card is used for, such as Multiinputoutput expansion card (Input/Output Card, abbreviation IO
Card), encoder control expansion card (Pulse Generator Card, abbreviation PG card), the expansion cards such as address card Interface Expanding card,
Meet demand of the user to the specific function of product with this.For example, when the control mode of product is by velocity sensor vector
When control, it is necessary to external a PG cards at expansion interface, so as to which function switching signal can be played between encoder and driver；
For another example, when user needs product to realize that remote serial port mode controls the functions such as frequency converter operation and parameter setting, it is necessary to
External a address card such as RS-232 communication interfaces expansion card or RS-485 communication interface expansion cards at expansion interface.Therefore, it is necessary to
A kind of system that can identify various types of expansion cards is provided, so as to meet user different demands solution party
Case.
In the prior art, identify various types of expansion card mainly by expansion card and governor circuit board communications
The ID number for removing identification expansion card using software in the process, the ID number by obtaining expansion card can identify the corresponding class of expansion card
Type, and then can smoothly start the corresponding function of expansion card.However, if can not be communicated between main control board and expansion card,
None- identified is gone out to the ID number of expansion card, thus also None- identified goes out the type of expansion card, main control board also just can not be automatic
The working environment configuration for adjusting expansion card, smoothly starts the corresponding function of expansion card, in the prior art identification various types
Expansion card scheme accuracy it is relatively low, stability is poor, and applicable range is smaller.
Therefore, how to design offer it is a kind of not against main control board and expansion card carry out communication can automatic identification it is each
The identifying system of the different types of expansion card of kind, can more accurately identify the extension being electrically connected with expansion interface
The type of card, so that the main control board of system can automatically adjust the working environment configuration of expansion card, it is those skilled in the art
Technical problem urgently to be resolved hurrily.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of extension card identifying system and power electronic equipment, when
When the extension card module is electrically connected by the expansion interface and the main control board, expansion card can be recognized accurately
Type overcomes so that the main control board of system can automatically adjust the working environment configuration of expansion card and needs to lead in the prior art
Cross the technical issues of main control board can just identify expansion card with extension cartoon letters.
In order to solve the above-mentioned technical problem, on the one hand, the utility model provides a kind of extension card identifying system, the extension
Card identifying system includes：Main control board and multiple and different extension card modules；The main control board includes being electrically connected
Control unit and expansion interface；Each extension card module includes the expansion card being electrically connected and partial pressure unit；Wherein,
When each extension card module is electrically connected by the expansion interface and the main control board, the main control board
Supply voltage is provided to each extension card module, the partial pressure unit divides the supply voltage to generate the expansion
Exhibition blocks corresponding predeterminated voltage signal and is output on the main control board by the expansion interface, described control unit root
According to expansion card described in the predeterminated voltage signal identification.
In extension card identifying system provided by the utility model, the expansion interface includes the first default pin, described
Expansion card includes the second default pin corresponding with the described first default pin, the output end of the partial pressure unit and described the
Two default pins are electrically connected is output to institute with the predeterminated voltage signal for generating partial pressure by the described second default pin
State the first default pin.
In extension card identifying system provided by the utility model, the partial pressure unit includes first resistor and the second electricity
Resistance, one end of the second resistance be connected to simultaneously the first resistor one end and the second default pin using as described
The output end of partial pressure unit, the other end ground connection of the second resistance, another termination expansion card of the first resistor
Power end.
In extension card identifying system provided by the utility model, the resistance value size of the first resistor and second resistance
It is different.
In extension card identifying system provided by the utility model, described control unit includes analog-digital converter, the mould
One detection pin of number converter is electrically connected with the described first default pin, to detect the pre- of the described first default pin output
If voltage signal.
In extension card identifying system provided by the utility model, the analog-digital converter is 12 analog-digital converters.
In extension card identifying system provided by the utility model, described control unit is digital signal processing chip or list
Piece machine.
In extension card identifying system provided by the utility model, the expansion interface is that general row is female, and the extension connects
The connection type of mouth and the extension card module uses row's busbar needle connection type.
In extension card identifying system provided by the utility model, the expansion card includes Multiinputoutput expansion card, compiles
At least two in code device control expansion card, communication interface expansion card, more water supplying pump expansion cards and injection molding machine expansion card.
In order to solve the above-mentioned technical problem, another aspect, the utility model provide a kind of power electronic equipment, the electric power
Electronic equipment includes：
One main body；And
One extension card identifying system, is above-mentioned extension card identifying system, and the main control board is set in the main body.
A kind of extension card identifying system and power electronic equipment provided by the utility model by the main control board to
Each extension card module provides supply voltage, one partial pressure unit of setting by each supply voltage for extending card module into
Row partial pressure to generate the corresponding predeterminated voltage signal of the expansion card and be output on main control board by the expansion interface, with
Make the control unit on the main control board can be according to the predeterminated voltage signal identification expansion card, and then realizes and accurately identify
Different types of expansion card and the purpose of automatic adjustment expansion card working environment configuration, overcome and need to pass through master in the prior art
The technical issues of control circuit board can just identify different types of expansion card with extension cartoon letters, and the extension card identifying system
Cost is relatively low.
By description below and in conjunction with attached drawing, the utility model will become more fully apparent, these attached drawings are for explaining this
The embodiment of utility model.
Description of the drawings
It is required in being described below to embodiment to make in order to illustrate more clearly of the utility model embodiment technical solution
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of circuit structure block diagram for extension card identifying system that the utility model embodiment provides；
Fig. 2 is a kind of physical circuit figure for extension card identifying system that the utility model embodiment provides；
Fig. 3 is a kind of structural schematic diagram for power electronic equipment that the utility model embodiment provides；
Fig. 4 is the enlarged diagram marked in power electronic equipment shown in Fig. 3 at A.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, the technical solution in embodiment is carried out it is clear, complete
Ground describes, and similar reference numerals represent similar component in attached drawing.Obviously, will be described below embodiment is only this practicality
Novel a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without creative efforts belongs to the model of the utility model protection
It encloses.
It should be appreciated that ought use in this specification and in the appended claims, term " comprising " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, element, component and/or its presence or addition gathered.
It is also understood that herein term as used in this specification merely for the sake of description specific embodiment purpose and
It is not intended to limit the present invention.As description of the invention and it is used in the attached claims, unless context
Other situations are clearly indicated, otherwise " one " of singulative, "one" and "the" are intended to include plural form.
It will be further appreciated that the term "and/or" used in this specification and in the appended claims refers to phase
Any combinations and all possible combinations of one or more of item listed are associated with, and include these combinations.
A kind of extension card identifying system and power electronic equipment provided by the utility model, will by the way that a partial pressure unit is arranged
The supply voltage of each extension card module is divided to generate the corresponding predeterminated voltage signal of the expansion card and by the expansion
Exhibition interface is output on main control board, so that the control unit on main control board expands according to the predeterminated voltage signal identification
Zhan Ka, and then realize the mesh for accurately identifying different types of expansion card and automatically adjusting the corresponding working environment configuration of expansion card
, overcome the skill for needing just to identify different types of expansion card with extension cartoon letters by main control board in the prior art
Art problem, and the manufacturing cost of the extension card identifying system is relatively low, high stability, and application range is wider.
Fig. 1~2 is referred to, Fig. 1 is a kind of circuit structure for extension card identifying system that the utility model embodiment provides
Block diagram, Fig. 2 are a kind of physical circuit figures for extension card identifying system that the utility model embodiment provides.The expansion card identification
System 10 includes main control board 11 and extension card module 12, and the main control board 11 includes the control unit being electrically connected
111 and expansion interface 112；The extension card module 12 includes the expansion card 121 being electrically connected and partial pressure unit 122.Institute
State the extension card module 12 of extension card identifying system 10 multiple and different types for identification, the type of the extension card module 12 by
The type of expansion card 121 included by it determines.Wherein, in some feasible embodiments, the extension card module 12 can be with
Card module is extended for Multiinputoutput；In other feasible embodiments, the extension card module 12 or encoder
Control extension card module or communication interface expansion card etc. extend card module.
The main control board 11 includes the control unit 111 being electrically connected and expansion interface 112, for being the expansion
It opens up card module 12 and supply voltage is provided, and according to detected predeterminated voltage signal pair corresponding with the extension card module 12
Processing is identified in the expansion card 121.In some feasible embodiments, such as in the present embodiment, described control unit 111
Using digital signal processing chip (Digital Signal Processing, abbreviation DSP), such as model TMS320F2812
Dsp chip, be used to control and identify different types of expansion card 121；In other feasible embodiments, the control
Unit can be microcontroller (Microcontroller Unit, abbreviation MCU).In the present embodiment, described control unit 111 is wrapped
An analog-digital converter 1111 is included, a detection pin a of the analog-digital converter 1111 and the first of the expansion interface 112 is default
Pin PIN1 is electrically connected, for receiving the predeterminated voltage signal for detecting the described first default pin PIN1 outputs.
In some feasible embodiments, such as in the present embodiment, the analog-digital converter 1111 is 12 analog-to-digital conversions
Device, wherein the detection pin a can be that any bit of analog-digital converter 1111 detects pin, the analog-digital converter 1111
Analog signal can be encoded into 4096 different centrifugal pumps (because 2^12=4096), wherein 4096 different discrete
Value includes from 0 to 4095 (i.e. signless integer) or from -2048 to 2047 (i.e. signed integer) both of these case, as using
It is any, specific application is depended on, therefore 12 analog-digital converters can be used for detecting 4096 pieces of expansion cards.
The expansion interface 112 includes the first default pin PIN1, and the expansion card 121 includes presetting to draw with described first
The corresponding second default pin PIN2 of foot PIN1, the output end of the partial pressure unit 122 and the described second default pin PIN2
It is electrically connected and is output to described first by the described second default pin PIN2 with the predeterminated voltage signal for generating partial pressure
Default pin PIN1.
In some feasible embodiments, such as in the present embodiment, the expansion interface 112 is that general row is female, the expansion
The connection type of interface 112 and the extension card module 12 is opened up using the direct insertion connection type of row's busbar needle, wherein described the
One default pin PIN1 is any pin of the general row mother；In other feasible embodiments, the expansion interface 112
The modes such as other connection types, such as patch connection, bonding wire connection may be used with the connection type of the extension card module 12.
The extension card module 12 includes the expansion card 121 being electrically connected and partial pressure unit 122, wherein the extension
Card module 12 is electrically connected by the expansion interface 112 and the main control board 11, and the main control board 11 is described
It extends card module 12 and supply voltage, in some feasible embodiments, such as in the present embodiment, the main control board 11 is provided
The supply voltage of 3.3V is provided for the extension card module 12.
In some possible embodiments, such as in the present embodiment, the expansion card 121 include Multiinputoutput expansion card,
Encoder controls the different types of expansions such as expansion card, communication interface expansion card, more water supplying pump expansion cards and injection molding machine expansion card
At least two in exhibition card, and the type of the extension card module 12 is determined by the type of the expansion card 121 included by it.
The partial pressure unit 122 includes first resistor R1 and second resistance R2.The first resistor R1 and second resistance
The resistance value size of R2 is the voltage value institute for the predeterminated voltage signal that every different types of expansion card should export as defined in prior
It determines, and the voltage value of the predeterminated voltage signal corresponding to every different types of expansion card is different.Described second
One end of resistance R2 be connected to simultaneously the first resistor R1 one end and the second default pin using as the partial pressure singly
The output end of member 122, the other end ground connection of the second resistance R2, another termination expansion card of the first resistor R1
Power end.The output end of the partial pressure unit 122 and the described second default pin PIN2 are electrically connected with by the supply voltage
The predeterminated voltage signal that partial pressure generates is output to the described first default pin PIN1 by the described second default pin PIN2
On.In the present embodiment, the supply voltage is 3.3V, and therefore, the voltage value of the predeterminated voltage signal can be 0~3.3V
Any value.
In some feasible embodiments, such as in the present embodiment, the resistance value of the first resistor R1 and second resistance R2
It is of different sizes.In the feasible embodiment of other, the first resistor R1 is identical as the resistance value size of second resistance R2.Its
In, when state first resistor R1 it is identical as the resistance value of second resistance R2 when, the voltage value of the first resistor R1 and the expansion card
The voltage value of second default pin of module 12 is identical, i.e., the voltage value of the described predeterminated voltage signal is the one of supply voltage value
Half, such as in the present embodiment, the voltage value of the predeterminated voltage signal is 1.65V.Such as when regulation injection molding machine extension in advance
When the voltage value of the predeterminated voltage signal of second default pin PIN2 outputs of card is 1.65V, need to select the resistance value size
Identical first resistor R1 and second resistance R2 makes the default of the second default pin PIN2 outputs of the injection molding machine expansion card
The voltage value of voltage signal is 1.65V；When the provide RS-233 communication interface expansion cards in advance second default pin PIN2 outputs
Predeterminated voltage signal voltage value be 1.2V when, need the first resistor R1 for selecting the resistance value of different sizes and second resistance
R2 so that the voltage value of the predeterminated voltage signal of the second default pin PIN2 outputs of the RS-233 communication interfaces expansion card is
1.2V.Wherein, if described control unit 111 detects the voltage of the predeterminated voltage signal of the described first default pin PIN1 inputs
Value is 1.65V, then described control unit determines that the expansion card is injection molding machine expansion card according to voltage value 1.65V identifications；
If described control unit 111 detects that the voltage value of the predeterminated voltage signal of the described first default pin PIN1 inputs is 1.2V,
Then described control unit determines that the expansion card is RS-233 communication interface expansion cards according to voltage value 1.2V identifications.
In the above-described embodiments, design provides a kind of basis and provides that every different types of expansion card output corresponds in advance
Preset voltage signal so that accurately identify the extension card identifying systems 10 of multiple and different Extended-type cards, the expansion card
Identifying system 10 may be implemented electrical by the expansion interface 112 and the main control board 11 when the extension card module 12
When connection, the main control board 11 provides supply voltage to the extension card module 12, and the partial pressure unit 122 is to the electricity
Source voltage is divided to generate the 121 corresponding predeterminated voltage signal of expansion card and be output to by the expansion interface 112
On the main control board 11, described control unit 111 goes out the class of the expansion card 121 according to the predeterminated voltage signal identification
Type, being communicated by main control board and expansion card with the prior art can just identify that various types of expansion card is known
Other system is compared, and this programme can more accurately identify different types of expansion card, and application range is wider, high stability,
Manufacturing cost is relatively low.
Continuing with referring to Fig. 2, the following detailed description of a kind of operation principle of extension card identifying system 10 of the present embodiment.It is described
It includes main control board 11 and extension card module 12 to extend card identifying system 10, and the main control board 11 includes being electrically connected
Control unit 111 and expansion interface 112；The extension card module 12 includes that the expansion card 121 being electrically connected and partial pressure are single
Member 122.The extension card module 12 of extension card identifying system 10 multiple and different types for identification, the extension card module 12
Type determined by the type of the expansion card 121 included by it.Wherein, in some feasible embodiments, the extension snap gauge
Block 12 can be that Multiinputoutput extends card module；In other feasible embodiments, the extension card module 12 can also
Extension card module or communication interface expansion card etc., which are controlled, for encoder extends card module.
The main control board 11 includes the control unit 111 being electrically connected and expansion interface 112, for being the expansion
It opens up card module 12 and supply voltage is provided, and according to detected predeterminated voltage signal pair corresponding with the extension card module 12
Processing is identified in the expansion card 121.Described control unit 111 includes an analog-digital converter 1111, the expansion interface 112
Including the first default pin PIN1, a detection pin a of the analog-digital converter 1111 and the first of the expansion interface 112 is pre-
If pin PIN1 is electrically connected, for receiving the predeterminated voltage signal for detecting the described first default pin PIN1 outputs.
The extension card module 12 includes the expansion card 121 being electrically connected and partial pressure unit 122, the expansion card 121
Including second default pin PIN2 corresponding with the described first default pin PIN1, the output end of the partial pressure unit 122 with
The second default pin PIN2, which is electrically connected the predeterminated voltage signal to generate partial pressure and is preset by described second, to be drawn
Foot PIN2 is output to the described first default pin PIN1.
Wherein, the expansion card 121 includes Multiinputoutput expansion card, encoder control expansion card, communication interface expansion
At least two in the different types of expansion cards such as Zhan Ka, more water supplying pump expansion cards and injection molding machine expansion card, and the extension
The type of card module 12 is determined by the type of the expansion card 121 included by it.The partial pressure unit 122 includes first resistor R1
And second resistance R2.One end of the second resistance R2 is connected to one end and described second of the first resistor R1 in advance simultaneously
If pin is grounded using the output end as the partial pressure unit 122, the other end of the second resistance R2, the first resistor R1
Another termination expansion card power end.Make the expansion card by the cooperation of expansion card 121 and partial pressure unit 122
121 the second default pin PIN2 exports preset voltage signal.
This programme should be exported by the provide every different types of expansion card in advance second default pin PIN2 with this
Card Type uniquely corresponding predeterminated voltage signal is extended, i.e., the predeterminated voltage letter corresponding to described every different types of expansion card
Number voltage value be different, then the resistance value by designing first resistor R1 and second resistance R2 coordinates so that every different type
The second default pin PIN2 of expansion card 121 correspond to predeterminated voltage signal as defined in output in advance, the first resistor R1 and
The electricity of the resistance value size of the second resistance R2 predeterminated voltage signal that every different types of expansion card should export as defined in prior
Pressure value is determined, wherein the voltage of the predeterminated voltage signal exported when first resistor R1 is identical as the resistance value of second resistance R2
Value only has a kind of situation, i.e. the voltage value of predeterminated voltage signal is 1.65V.The second default pin PIN2 and expansion interface should be passed through
The predeterminated voltage signal is inputted main control board 11, described control unit by the electric connection of 112 the first default pin PIN1
The detection pin a of 111 analog-digital converter 1111 detects that the predeterminated voltage signal, control unit 111 pass through the predeterminated voltage
Signal identification expansion card corresponding with the predeterminated voltage signal.
Such as the predeterminated voltage letter that the second default pin PIN2 of the Multiinputoutput expansion card should be exported is provided in advance
Number voltage value be 0.5V, the voltage of predeterminated voltage signal that the second default pin PIN2 of encoder control expansion card should be exported
Value is 1.0V, and the voltage value for the predeterminated voltage signal that the second default pin PIN2 of RS-233 communication interface expansion cards should be exported is
The voltage value for the predeterminated voltage signal that 1.2V, the second default pin PIN2 of injection molding machine expansion card should be exported is 1.65V, then passes through
Two resistance values of selection different first resistor R1 and second resistance R2, which are matched, makes the second of the Multiinputoutput expansion card
The voltage value of default pin PIN2 is 0.5V, and the voltage value of the second default pin PIN2 of the encoder control expansion card is
The voltage value of 1.0V, the second default pin PIN2 of the RS-233 communication interfaces expansion card are 1.2V, can also pass through two
Resistance value identical first resistor R1 and second resistance R2 is matched so that the voltage value of the injection molding machine expansion card is 1.65V, institute
State the resistance value size of first resistor R1 and second resistance R2 every different types of expansion card as defined in prior should export it is pre-
If the voltage value of voltage signal is determined, and the voltage of the predeterminated voltage signal corresponding to every different types of expansion card
Value is different.
In some feasible embodiments, such as the present embodiment, the electricity of the predeterminated voltage signal corresponding to the expansion card
Pressure value can be any value of 0~3.3V.As the first default pin PIN1 and the second of expansion card 121 of expansion interface 112
After the electric connection of default pin PIN2, if the detection pin a of the analog-digital converter 1111 of described control unit 111 detects the
The voltage value of two default pin PIN2 is 0.5V, then described control unit 111 identifies that the expansion card is Multiinputoutput expansion card,
If the detection pin a of the analog-digital converter 1111 of described control unit 111 detects that the voltage value of the second default pin PIN2 is
1.0V, then the identification of described control unit 111 expansion card is that encoder controls expansion card, if the modulus of described control unit 111
The detection pin a of converter 1111 detects that the voltage value of the second default pin PIN2 is 1.2V, then described control unit 111 is known
The expansion card is not RS-233 communication interface expansion cards, so that various differences can be recognized accurately in the main control board 11
The expansion card 121 of type, and then main control board 11 can automatically adjust working environment configuration corresponding with the expansion card, without
The type of the expansion card is manually inputted, while also overcoming and relying on main control board and extension cartoon letters ability in the prior art
The technical issues of identifying different types of expansion card.
Fig. 3~4 is referred to, Fig. 3 is a kind of structural schematic diagram for power electronic equipment that the utility model embodiment provides,
Fig. 4 is the enlarged diagram marked in power electronic equipment shown in Fig. 3 at A.As shown in figs. 34, one kind is present embodiments provided
Power electronic equipment 1, such as frequency converter, driver, servo-drive system power electronic equipment.The power electronic equipment 1 includes one
Main body 20 and an extension card identifying system 10, the extension card identifying system 10 include main control board 11 and expansion card
Module 12, the main control board 111 are set in the main body 20.The main control board 11 includes the control list being electrically connected
Member 111 and expansion interface 112；The extension card module 12 includes the expansion card 121 being electrically connected and partial pressure unit 122.
The extension card module 12 of extension card identifying system 10 multiple and different types for identification, the type of the extension card module 12
It is determined by the type of the expansion card 121 included by it.
Wherein, in some feasible embodiments, the extension card module 12 can be that Multiinputoutput extends card module；
In other feasible embodiments, the extension card module 12 or encoder control extend card module or communication interface
Expansion card etc. extends card module.
The main control board 11 includes the control unit 111 being electrically connected and expansion interface 112, wherein the control
Unit 111 processed is set to the inside of the main body 20, and the expansion interface 112 is set to the surface of the main body 20.The master control electricity
Road plate 11 is used to provide supply voltage for the extension card module 12, and according to detected opposite with the extension card module 12
Processing is identified to the expansion card 121 in the predeterminated voltage signal answered.In some feasible embodiments, such as the present embodiment
In, described control unit 111 is using digital signal processing chip (Digital Signal Processing, abbreviation DSP), example
Such as the dsp chip of model TMS320F2812, different types of expansion card 121 is used to control and identified；It is feasible at other
Embodiment in, described control unit can be microcontroller (Microcontroller Unit, abbreviation MCU).
In the present embodiment, described control unit 111 includes an analog-digital converter 1111, the analog-digital converter 1111
The first default pin PIN1 of one detection pin a and the expansion interface 112 are electrically connected, pre- for receiving detection described first
If the predeterminated voltage signal of pin PIN1 outputs.
In some feasible embodiments, such as in the present embodiment, the analog-digital converter 1111 is 12 analog-to-digital conversions
Device, wherein the detection pin a can be that any bit of analog-digital converter 1111 detects pin, the analog-digital converter 1111
Analog signal can be encoded into 4096 different centrifugal pumps (because 2^12=4096), wherein 4096 different discrete
Value includes from 0 to 4095 (i.e. signless integer) or from -2048 to 2047 (i.e. signed integer) both of these case, as using
It is any, specific application is depended on, therefore 12 analog-digital converters can be used for detecting 4096 pieces of expansion cards.
The expansion interface 112 includes the first default pin PIN1, and the expansion card 121 includes presetting to draw with described first
The corresponding second default pin PIN2 of foot PIN1, the output end of the partial pressure unit 122 and the described second default pin PIN2
It is electrically connected and is output to described first by the described second default pin PIN2 with the predeterminated voltage signal for generating partial pressure
Default pin PIN1.
In some feasible embodiments, such as in the present embodiment, the expansion interface 112 is that general row is female, the expansion
The connection type of interface 112 and the extension card module 12 is opened up using the direct insertion connection type of row's busbar needle, wherein described the
One default pin PIN1 is any pin of the general row mother；In other feasible embodiments, the expansion interface 112
The modes such as other connection types, such as patch connection, bonding wire connection may be used with the connection type of the extension card module 12.
The extension card module 12 includes the expansion card 121 being electrically connected and partial pressure unit 122, wherein the extension
Card module 12 is electrically connected by the expansion interface 112 and the main control board 11, and the main control board 11 is described
It extends card module 12 and supply voltage, in some feasible embodiments, such as in the present embodiment, the main control board 11 is provided
The supply voltage of 3.3V is provided for the extension card module 12.
In some possible embodiments, such as in the present embodiment, the expansion card 121 includes Multiinputoutput extension
Card, encoder control expansion card, communication interface expansion card, more water supplying pump expansion cards and injection molding machine expansion card etc. are different types of
At least two in expansion card, and the type of the extension card module 12 is determined by the type of the expansion card 121 included by it.
The partial pressure unit 122 includes first resistor R1 and second resistance R2.The first resistor R1 and second resistance
The resistance value size of R2 is the voltage value institute for the predeterminated voltage signal that every different types of expansion card should export as defined in prior
It determines, and the voltage value of the predeterminated voltage signal corresponding to every different types of expansion card is different.Described second
One end of resistance R2 be connected to simultaneously the first resistor R1 one end and the second default pin using as the partial pressure singly
The output end of member 122, the other end ground connection of the second resistance R2, another termination expansion card of the first resistor R1
Power end.The output end of the partial pressure unit 122 and the described second default pin PIN2 are electrically connected with by the supply voltage
The predeterminated voltage signal that partial pressure generates is output to the described first default pin PIN1 by the described second default pin PIN2
On.In the present embodiment, the supply voltage is 3.3V, and therefore, the voltage value of the predeterminated voltage signal can be 0~3.3V
Any value.
In some feasible embodiments, such as in the present embodiment, the resistance value of the first resistor R1 and second resistance R2
It is of different sizes.In the feasible embodiment of other, the first resistor R1 is identical as the resistance value size of second resistance R2.Its
In, when state first resistor R1 it is identical as the resistance value of second resistance R2 when, the voltage value of the first resistor R1 and the expansion card
The voltage value of second default pin of module 12 is identical, i.e., the voltage value of the described predeterminated voltage signal is the one of supply voltage value
Half, such as in the present embodiment, the voltage value of the predeterminated voltage signal is 1.65V.Such as when regulation injection molding machine extension in advance
When the voltage value of the predeterminated voltage signal of second default pin PIN2 outputs of card is 1.65V, need to select the resistance value size
Identical first resistor R1 and second resistance R2 makes the default of the second default pin PIN2 outputs of the injection molding machine expansion card
The voltage value of voltage signal is 1.65V；When the provide RS-233 communication interface expansion cards in advance second default pin PIN2 outputs
Predeterminated voltage signal voltage value be 1.2V when, need the first resistor R1 for selecting the resistance value of different sizes and second resistance
R2 so that the voltage value of the predeterminated voltage signal of the second default pin PIN2 outputs of the RS-233 communication interfaces expansion card is
1.2V.Wherein, if described control unit 111 detects the voltage of the predeterminated voltage signal of the described first default pin PIN1 inputs
Value is 1.65V, then described control unit determines that the expansion card is injection molding machine expansion card according to voltage value 1.65V identifications；
If described control unit 111 detects that the voltage value of the predeterminated voltage signal of the described first default pin PIN1 inputs is 1.2V,
Then described control unit determines that the expansion card is RS-233 communication interface expansion cards according to voltage value 1.2V identifications.
In the above-described embodiments, design provides a kind of basis and provides that every different types of expansion card output corresponds in advance
Preset voltage signal so that accurately identify the extension card identifying systems 10 of multiple and different Extended-type cards, the expansion card
Identifying system 10 may be implemented electrical by the expansion interface 112 and the main control board 11 when the extension card module 12
When connection, the main control board 11 provides supply voltage to the extension card module 12, and the partial pressure unit 122 is to the electricity
Source voltage is divided to generate the 121 corresponding predeterminated voltage signal of expansion card and be output to by the expansion interface 112
On the main control board 11, described control unit 111 goes out the class of the expansion card 121 according to the predeterminated voltage signal identification
Type, being communicated by main control board and expansion card with the prior art can just identify that various types of expansion card is known
Other system is compared, and this programme can more accurately identify different types of expansion card, and application range is wider, high stability,
Manufacturing cost is relatively low.
The utility model is described above in association with preferred embodiment, but the utility model is not limited to above take off
The embodiment shown, and the modification that various essence according to the present utility model carry out should be covered.
Claims (10)
1. a kind of extension card identifying system, which is characterized in that including：Main control board and multiple and different extension card modules；Institute
It includes the control unit being electrically connected and expansion interface to state main control board；Each extension card module includes being electrically connected
Expansion card and partial pressure unit；Wherein, when each extension card module passes through the expansion interface and the governor circuit
When plate is electrically connected, the main control board provides supply voltage to each extension card module, and the partial pressure unit is to institute
Supply voltage is stated to be divided to generate the corresponding predeterminated voltage signal of the expansion card and be output to institute by the expansion interface
It states on main control board, described control unit is according to expansion card described in the predeterminated voltage signal identification.
2. extension card identifying system according to claim 1, it is characterised in that：The expansion interface is preset including first to be drawn
Foot, the expansion card include the second default pin corresponding with the described first default pin, the output end of the partial pressure unit
It is electrically connected with the described second default pin and passes through the described second default pin so that the predeterminated voltage signal generated will be divided
It is output to the described first default pin.
3. extension card identifying system according to claim 2, it is characterised in that：The partial pressure unit include first resistor with
And second resistance, one end of the second resistance be connected to simultaneously the first resistor one end and the second default pin with
As the output end of the partial pressure unit, the other end of the second resistance is grounded, described in another termination of the first resistor
The power end of expansion card.
4. extension card identifying system according to claim 3, it is characterised in that：The first resistor and second resistance
Resistance value is of different sizes.
5. extension card identifying system according to claim 1, it is characterised in that：Described control unit includes analog-to-digital conversion
Device, a detection pin and the described first default pin of the analog-digital converter are electrically connected, are drawn with detecting described first and presetting
The predeterminated voltage signal of foot output.
6. extension card identifying system according to claim 5, it is characterised in that：The analog-digital converter is that 12 moduluses turn
Parallel operation.
7. extension card identifying system according to claim 1, it is characterised in that：Described control unit is Digital Signal Processing
Chip or microcontroller.
8. extension card identifying system according to claim 1, it is characterised in that：The expansion interface is that general row is female, institute
Expansion interface is stated with the connection type of the extension card module using row's busbar needle connection type.
9. extension card identifying system according to claim 1, it is characterised in that：The expansion card includes that Multiinputoutput expands
At least two in Zhan Ka, encoder control expansion card, communication interface expansion card, more water supplying pump expansion cards and injection molding machine expansion card
Kind.
10. a kind of power electronic equipment, which is characterized in that including：
One main body；And
One extension card identifying system, the extension card identifying system are claim 1-9 any one of them expansion cards identification system
System, the main control board are set in the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721786743.1U CN207650301U (en) | 2017-12-19 | 2017-12-19 | A kind of extension card identifying system and power electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721786743.1U CN207650301U (en) | 2017-12-19 | 2017-12-19 | A kind of extension card identifying system and power electronic equipment |
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|---|---|
| CN207650301U true CN207650301U (en) | 2018-07-24 |
Family
ID=62877875
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|---|---|---|---|
| CN201721786743.1U Active CN207650301U (en) | 2017-12-19 | 2017-12-19 | A kind of extension card identifying system and power electronic equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803451A (en) * | 2018-08-08 | 2018-11-13 | 深圳市智童乐慧科技有限公司 | A kind of recognition methods that module is freely replaced and system |
| CN109270342A (en) * | 2018-11-13 | 2019-01-25 | 江苏斯菲尔电气股份有限公司 | Multifunctional electric meter with external expansion module self-identifying technology |
| CN109445342A (en) * | 2018-11-07 | 2019-03-08 | 珠海派诺科技股份有限公司 | Open port automatic recognition system, method and storage medium |
| CN111487487A (en) * | 2020-03-23 | 2020-08-04 | 威胜信息技术股份有限公司 | Device ID identification method and system based on ADC sampling and electronic device |
| CN112652929A (en) * | 2020-12-11 | 2021-04-13 | 工业和信息化部威海电子信息技术综合研究中心 | PLC inter-board communication system |
| CN113535623A (en) * | 2021-06-11 | 2021-10-22 | 中国长城科技集团股份有限公司 | Port configuration circuit, method and server |
| CN113870657A (en) * | 2021-09-28 | 2021-12-31 | 北京易真学思教育科技有限公司 | Recognition device of functional module |
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2017
- 2017-12-19 CN CN201721786743.1U patent/CN207650301U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803451A (en) * | 2018-08-08 | 2018-11-13 | 深圳市智童乐慧科技有限公司 | A kind of recognition methods that module is freely replaced and system |
| CN109445342A (en) * | 2018-11-07 | 2019-03-08 | 珠海派诺科技股份有限公司 | Open port automatic recognition system, method and storage medium |
| CN109270342A (en) * | 2018-11-13 | 2019-01-25 | 江苏斯菲尔电气股份有限公司 | Multifunctional electric meter with external expansion module self-identifying technology |
| CN109270342B (en) * | 2018-11-13 | 2024-03-26 | 江苏斯菲尔电气股份有限公司 | Multifunctional ammeter with function expansion module self-identification technology |
| CN111487487A (en) * | 2020-03-23 | 2020-08-04 | 威胜信息技术股份有限公司 | Device ID identification method and system based on ADC sampling and electronic device |
| CN112652929A (en) * | 2020-12-11 | 2021-04-13 | 工业和信息化部威海电子信息技术综合研究中心 | PLC inter-board communication system |
| CN113535623A (en) * | 2021-06-11 | 2021-10-22 | 中国长城科技集团股份有限公司 | Port configuration circuit, method and server |
| CN113870657A (en) * | 2021-09-28 | 2021-12-31 | 北京易真学思教育科技有限公司 | Recognition device of functional module |
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