CN205899299U - Four ways analog output device based on CIB BUS bus - Google Patents
Four ways analog output device based on CIB BUS bus Download PDFInfo
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- CN205899299U CN205899299U CN201620648353.7U CN201620648353U CN205899299U CN 205899299 U CN205899299 U CN 205899299U CN 201620648353 U CN201620648353 U CN 201620648353U CN 205899299 U CN205899299 U CN 205899299U
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Abstract
The utility model discloses a four ways analog output device based on CIB BUS bus, this output device includes bus network, power switching circuit, bus coupling, main control chip, 10 position DA converting circuit and four ways analog output converting circuit, bus network and bus coupling are connected, bus coupling and main control chip are connected, power switching circuit respectively with bus network, bus coupling and main control chip connect, main control chip still is connected with 10 DA converting circuit, 10 the position DA converting circuit be connected with four ways analog output converting circuit. Bus coupling is used for being responsible for and the bus network communication, and main control chip is used for receiving the communication order that comes from bus network to according to the command controls four ways analog output converting circuit. Can this output device realize controlling output to output circuit's electric current or voltage signal, through 10 DA conversion passageways in the module, converts the electric current or the voltage signal of corresponding proportion to, output signal optional 5V, 10V, 4 three kinds of modes of 20mA.
Description
Technical field
This utility model be related to technical field of electrical automation control and in particular to a kind of based on cib-bus bus four
Road analogue quantity output device.
Background technology
Cib-bus bus is a kind of field bus technique, cib-bus bus by the central air-conditioning in building, electric switch,
The equipment such as lighting, energy conservation, video monitoring, security protection, environmental monitoring are integrated, by unified bus type net
Network structure and control platform, realize the Centralized Monitoring to these equipment and management.
In prior art, the output signal of the analogue quantity output device based on cib-bus bus is typically all 4-20ma mould
Formula, and output channel is fewer.
For example, Chinese patent literature cn2563852a discloses a kind of digital video frequency gate way, with Reduced Instruction Set Computer
(risc) 32 8-digit microcontrollers are core, single-chip video compress chip, Ethernet control chip, and strip 8m dynamic random is deposited
Reservoir (dram) constitutes hardware core.It is core using risc32 8-digit microcontroller, collection in worksite ntsc/pal standard video is defeated
Enter, video input interface order is connected to video capture circuit, and video compression circuit, by peripheral element extension interface bus
(pcibus) it is bi-directionally connected with microcontroller again.Video compression circuit is also double with synchronous DRAM (sdram) circuit
To connection.The ethernet controller being bi-directionally connected with microcontroller passes through Ethernet rj45 interface for being directly accessed LAN.Logical
Crossing Programmable Logic Device (pld) circuit being bi-directionally connected with microcontroller provides switch sensing input interface and relay control defeated
Outgoing interface.Pld circuit is also bi-directionally connected with real-time clock and watchdog circuit respectively.With also having that microcontroller is bi-directionally connected
Dram storage circuit, read only memory (rom) circuit, rs232 level shifting circuit and rs485 level shifting circuit (rs232,
The electronic serial that rs485 is defined by Electronic Industries Association and the standard of cable link properties).Rs232 level shifting circuit carries
For rs232 numeral external controlled interface.
Utility model content
The purpose of this utility model is to provide a kind of four road analogue quantity output devices based on cib-bus bus.
For achieving the above object, the four road analogue quantity output device bags based on cib-bus bus described in the utility model
Include bus network, power-switching circuit, bus coupler, main control chip, 10 d/a change-over circuits and four road analog outputs to turn
Change circuit, described bus network is connected with bus coupler, and bus coupler is connected with main control chip, and power-switching circuit divides
It is not connected with bus network, bus coupler and main control chip, main control chip is also connected with 10 d/a change-over circuits, 10 d/a
Change-over circuit is connected with four road analog output change-over circuits.
Described power-switching circuit is used for powering for bus network, bus coupler and main control chip.
Described bus coupler is used for being responsible for and bus network communication, receives the communication signal from bus network and passes
It is defeated by main control chip, and the response signal of main control chip is sent in bus network.
Described main control chip is used for receiving, by bus coupler, the communication command being derived from bus network, and according in order
Rong Dui tetra- road analog output change-over circuit is controlled.
Described communication command is analog output control command.
Described main control chip is further used for the parsing of analog output control command to be converted into 10 d/a change-over circuit energy
The enough numerical value processing, and control 10 d/a change-over circuits to export corresponding voltage or current signal.
Described 10 d/a change-over circuits are used for being responsible for converting digital signals into analogue signal, and main control chip was transmitted
The digital signal coming is converted to directly proportional voltage or current signal with digital signal.
Described four road analog output change-over circuits are used for independent control and export four road analog quantity voltages or current signal, letter
Number total 5v, 10v and 4-20ma Three models of setting are selective.
Described main control chip is connected with communication signal converter, communication signal converter and common group of bus level transducer
Become bus coupler, the ptd2 foot of main control chip is connected with second resistance and display lamp, second resistance and display lamp constitute operation
Indicating member, the ptd3 foot of main control chip is grounded by feeler switch k1.
The input in the same direction of the signal input part of described four road analog output change-over circuits and the first operational amplifier is even
Connect ,+18v power supply provides voltage for the first operational amplifier, and the power input of the first operational amplifier is also by the 17th electricity
Hold ground connection；The reverse input end of the first operational amplifier is connected with outfan, the outfan of the first operational amplifier and the 18th
Resistance connects, and the other end of the 18th resistance is connected with the input in the same direction of the second operational amplifier, the second operational amplifier
Reverse input end passes through the 17th resistance eutral grounding；18th capacitance connection is in the reverse input end of the second operational amplifier and output
Between end；19th resistance one end is connected to the reverse input end of the second operational amplifier, and the other end is connected with the 20th resistance；
The other end of the 20th resistance is connected to the 4th output pin of first lead-out terminal, for exporting 0-10v d. c. voltage signal；The
Second output pin of one lead-out terminal is connected between the 19th resistance and the 20th resistance, for exporting 4-20ma electric current letter
Number；The outfan of the second operational amplifier is connected with the base stage of audion；The source electrode of audion pass through the 21st resistance connect+
24v power supply；The emitter stage of audion is connected between the 22nd resistance and the 23rd resistance, the 22nd resistance another
End ground connection；23rd resistance is current/voltage transfer resistance, for 4-20ma current signal is converted into 1-5v voltage signal；
The other end of the 23rd resistance is connected to the 3rd output pin of first lead-out terminal, for exporting 1-5v voltage signal；First
First output pin of lead-out terminal is connected between the emitter stage of audion and the 23rd resistance；The 3rd of first lead-out terminal
Output pin is also respectively connected with the first output pin of signal output part and the second lead-out terminal；24th resistance one end is connected to
Between 18 resistance and the input in the same direction of the second operational amplifier, the other end of the 24th resistance is connected to the second outfan
Second output pin of son, for exporting 4-20ma current signal；25th resistance one end is connected to the 24th resistance and
Between second output pin of two lead-out terminals, the other end of the 25th resistance is connected to the 4th output of the second lead-out terminal
Foot, for exporting 0-10v d. c. voltage signal；3rd output pin ground connection of the second lead-out terminal；First operational amplifier, second
Operational amplifier, the 17th resistance, the 18th resistance, the 19th resistance, the 20th resistance, the 21st resistance, the 22nd
Resistance, the 24th resistance, the 25th resistance, the 17th electric capacity and the 18th electric capacity constitute voltage and current signal conversion electricity
Road, the analog voltage that main control chip is controlled output is converted into 0-5v, 0-10v d. c. voltage signal or 4-20ma DC current letter
Number, realize four road analog outputs and control.
This utility model has the advantage that the four tunnel analog quantitys based on cib-bus bus described in the utility model are defeated
Go out device compared with prior art, be capable of the curtage signal of output loop being controlled export, by module
In 10 d/a ALT-CH alternate channels, be converted into the curtage signal of corresponding ratio, output signal may be selected 5v, 10v, 4-
20ma Three models.
Brief description
Fig. 1 is the structured flowchart of the four road analogue quantity output devices based on cib-bus bus described in the utility model.
Fig. 2 is the circuit theory schematic diagram of main control chip described in the utility model (mcu).
Fig. 3 is the principle schematic of four road analog output change-over circuits described in the utility model.
Specific embodiment
Following examples are used for this utility model is described, but are not limited to scope of the present utility model.
As shown in figure 1, described in the utility model include bus based on four road analogue quantity output devices of cib-bus bus
Network 1, power-switching circuit 2, bus coupler 3,4,10 d/a change-over circuits 5 of main control chip and four road analog outputs turn
Change circuit 6, described bus network 1 is connected with bus coupler 3, and bus coupler 3 is connected with main control chip 4, Power convert
Circuit 2 is connected with bus network 1, bus coupler 3 and main control chip 4 respectively, main control chip 4 also with 10 d/a change-over circuits 5
Connect, 10 d/a change-over circuits 5 are connected with four road analog output change-over circuits 6.
Described power-switching circuit 2 is used for powering for bus network 1, bus coupler 3 and main control chip 4.
Described bus coupler is used for being responsible for and bus network communication, receives the communication signal from bus network and passes
It is defeated by main control chip, and the response signal of main control chip is sent in bus network.
Described main control chip is used for receiving, by bus coupler 3, the communication command being derived from bus network, and according to order
Content is controlled to four road analog output change-over circuits.
Described communication command is analog output control command.
Described main control chip is further used for the parsing of analog output control command to be converted into 10 d/a change-over circuits 5
The numerical value that can process, and control 10 d/a change-over circuits 5 to export corresponding voltage or current signal.
Described 10 d/a change-over circuits 5 are used for being responsible for converting digital signals into analogue signal, and main control chip was transmitted
The digital signal coming is converted to directly proportional voltage or current signal with digital signal.
Described four road analog output change-over circuits 6 are used for independent control and export four road analog quantity voltages or current signal,
Total 5v, the 10v and 4-20ma Three models of signal setting are selective.5v pattern is used for exporting 0-5v d. c. voltage signal；10v mould
Formula is used for exporting 0-10v d. c. voltage signal；4-20ma pattern is used for exporting 4-20ma DC current signal.
As shown in Fig. 2 it is master control core that described main control chip (mcu) adopts the mc9s08aw32 single-chip microcomputer u1 of Freescale
Piece, mc9s08aw32 single-chip microcomputer u1 is connected with communication signal converter u2, communication signal converter u2 and bus level transducer
U5 collectively constitutes bus coupler, and the ptd2 foot of mc9s08aw32 single-chip microcomputer u1 is connected with resistance r2 and display lamp led1, resistance
R2 and display lamp led1 constitutes operation indicating member, and the ptd3 foot of mc9s08aw32 single-chip microcomputer u1 is grounded by feeler switch k1.
As shown in figure 3, described four road analog output change-over circuits 6 can export three kinds of analogue signals, comprising: 4-20ma
DC current signal；0-5v d. c. voltage signal and 0-10v d. c. voltage signal.In Fig. 3, four road analog output change-over circuits
6 signal input part daao (signal input part daao is also connected with test port tp1) and the first operational amplifier u6a are in the same direction
Input connects, and+18v power supply provides voltage, the power input of the first operational amplifier u6a for the first operational amplifier u6a
It is grounded also by the 17th electric capacity c17；The reverse input end of the first operational amplifier u6a is connected with outfan, and the first computing is put
The outfan of big device u6a is connected with the 18th resistance r18, the other end of the 18th resistance r18 and the second operational amplifier u6b's
Input connects in the same direction, and the reverse input end of the second operational amplifier u6b passes through the 17th resistance r17 ground connection；18th electric capacity
C18 is connected between reverse input end and the outfan of the second operational amplifier u6b；19th resistance r19 one end is connected to
The reverse input end of two operational amplifier u6b, the other end is connected with the 20th resistance r20；The other end of the 20th resistance r20 is even
It is connected to the 4th output pin of first lead-out terminal j13, for exporting 0-10v d. c. voltage signal；The of first lead-out terminal j13
Two output pins are connected between the 19th resistance r19 and the 20th resistance r20, for exporting 4-20ma current signal；Second fortune
The outfan calculating amplifier u6b is connected with the base stage of audion q1；The source electrode of audion q1 passes through the 21st resistance r21 and connects
+ 24v power supply；The emitter stage of audion q1 is connected between the 22nd resistance r22 and the 23rd resistance r23, and the 22nd
The other end ground connection of resistance r22；23rd resistance r23 is current/voltage transfer resistance, for turning 4-20ma current signal
Change 1-5v voltage signal into；The other end of the 23rd resistance r23 is connected to the 3rd output pin of first lead-out terminal j13, uses
In output 1-5v voltage signal；First output pin of first lead-out terminal j13 is connected to the emitter stage and the 20th of audion q1
Between three resistance r23；3rd output pin of first lead-out terminal j13 is also respectively connected with signal output part ao1 and the second outfan
First output pin of sub- j14；24th resistance r24 one end is connected to the 18th resistance r18's and the second operational amplifier u6b
In the same direction between input, the other end of the 24th resistance r24 is connected to second output pin of the second lead-out terminal j14, is used for
Output 4-20ma current signal；25th resistance r25 one end is connected to the 24th resistance r24 and the second lead-out terminal j14
The second output pin between, the other end of the 25th resistance r25 is connected to the 4th output pin of the second lead-out terminal j14, use
In output 0-10v d. c. voltage signal；The 3rd output pin ground connection of the second lead-out terminal j14；First operational amplifier u6a,
Two operational amplifier u6b, the 17th resistance r17, the 18th resistance r18, the 19th resistance r19, the 20th resistance r20, second
11 resistance r21, the 22nd resistance r22, the 24th resistance r24, the 25th resistance r25, the 17th electric capacity c17 and
18 electric capacity c18 constitute voltage and current signal change-over circuit, main control chip (mc9s08aw32) 4 are controlled the analog voltage of output
It is converted into 0-5v, 0-10v d. c. voltage signal or 4-20ma DC current signal, realize four road analog outputs and control.
Although, above with general explanation and specific embodiment, detailed description is made to this utility model,
On the basis of this utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from this utility model spirit, belonging to this utility model will
Seek the scope of protection.
Claims (10)
1. a kind of four road analogue quantity output devices based on cib-bus bus are it is characterised in that described four road analog outputs fill
Put defeated including bus network, power-switching circuit, bus coupler, main control chip, 10 d/a change-over circuits and four tunnel analog quantitys
Go out change-over circuit, described bus network is connected with bus coupler, and bus coupler is connected with main control chip, Power convert electricity
Road is connected with bus network, bus coupler and main control chip respectively, and main control chip is also connected with 10 d/a change-over circuits, and 10
Position d/a change-over circuit is connected with four road analog output change-over circuits.
2. four road analogue quantity output devices as claimed in claim 1 it is characterised in that described power-switching circuit be used for be
Bus network, bus coupler and main control chip are powered.
3. four road analogue quantity output devices as claimed in claim 2 it is characterised in that described bus coupler be used for total
Line network communication, receives the communication signal from bus network and is transferred to main control chip, and the response signal by main control chip
It is sent in bus network.
4. four road analogue quantity output devices as claimed in claim 3 are it is characterised in that described main control chip is used for by bus
Bonder receives the communication command from bus network, and according to command context, four road analog output change-over circuits is controlled
System.
5. four road analogue quantity output devices as claimed in claim 4 are it is characterised in that described communication command is that analog quantity is defeated
Go out control command.
6. four road analogue quantity output devices as claimed in claim 5 are it is characterised in that described main control chip is further used for handle
The parsing of analog output control command is converted into the numerical value that 10 d/a change-over circuits can be processed, and controls 10 d/a conversion electricity
Road exports corresponding voltage or current signal.
7. four road analogue quantity output devices as claimed in claim 6 are it is characterised in that described 10 d/a change-over circuits are used for
It is responsible for converting digital signals into analogue signal, the digital signal that main control chip is sent is converted to and just becomes with digital signal
The voltage of ratio or current signal.
8. four road analogue quantity output devices as claimed in claim 7 are it is characterised in that described four road analog output conversions are electric
Road is used for independent control and exports four road analog quantity voltages or current signal, total 5v, the 10v and 4-20ma Three models of signal setting
Selective.
9. four road analogue quantity output devices as claimed in claim 8 are it is characterised in that described main control chip and communication signal turn
Parallel operation connects, and communication signal converter and bus level transducer collectively constitute bus coupler, the ptd2 foot of main control chip with
Second resistance and display lamp series connection, second resistance and display lamp constitute operation indicating member, and the ptd3 foot of main control chip passes through to survey
Examination key k1 ground connection.
10. four road analogue quantity output devices as claimed in claim 9 are it is characterised in that described four road analog outputs are changed
The signal input part of circuit is connected with the input in the same direction of the first operational amplifier, and+18v power supply provides for the first operational amplifier
Voltage, the power input of the first operational amplifier is also by the 17th capacity earth；The reverse input of the first operational amplifier
End is connected with outfan, and the outfan of the first operational amplifier is connected with the 18th resistance, the other end of the 18th resistance and the
The input in the same direction of two operational amplifiers connects, and the reverse input end of the second operational amplifier passes through the 17th resistance eutral grounding；The
18 capacitance connections are between the reverse input end and outfan of the second operational amplifier；19th resistance one end is connected to second
The reverse input end of operational amplifier, the other end is connected with the 20th resistance；It is defeated that the other end of the 20th resistance is connected to first
Go out the 4th output pin of terminal, for exporting 0-10v d. c. voltage signal；Second output pin of first lead-out terminal is connected to
Between 19 resistance and the 20th resistance, for exporting 4-20ma current signal；The outfan of the second operational amplifier and three poles
The base stage of pipe connects；The source electrode of audion passes through the 21st resistance and connects+24v power supply；The emitter stage of audion is connected to
Between 22 resistance and the 23rd resistance, the other end ground connection of the 22nd resistance；23rd resistance is current/voltage
Transfer resistance, for being converted into 1-5v voltage signal by 4-20ma current signal；The other end of the 23rd resistance is connected to
3rd output pin of one lead-out terminal, for exporting 1-5v voltage signal；First output pin of first lead-out terminal is connected to three
Between the emitter stage of pole pipe and the 23rd resistance；3rd output pin of first lead-out terminal be also respectively connected with signal output part and
First output pin of the second lead-out terminal；24th resistance one end is connected to the same of the 18th resistance and the second operational amplifier
To between input, the other end of the 24th resistance is connected to the second output pin of the second lead-out terminal, for exporting 4-
20ma current signal；25th resistance one end be connected to the 24th resistance and the second lead-out terminal the second output pin it
Between, the other end of the 25th resistance is connected to the 4th output pin of the second lead-out terminal, for exporting 0-10v DC voltage letter
Number；3rd output pin ground connection of the second lead-out terminal；First operational amplifier, the second operational amplifier, the 17th resistance, the tenth
Eight resistance, the 19th resistance, the 20th resistance, the 21st resistance, the 22nd resistance, the 24th resistance, the 25th
Resistance, the 17th electric capacity and the 18th electric capacity constitute voltage and current signal change-over circuit, main control chip are controlled the simulation of output
Voltage conversion becomes 0-5v, 0-10v d. c. voltage signal or 4-20ma DC current signal, realizes four road analog outputs and controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620648353.7U CN205899299U (en) | 2016-06-27 | 2016-06-27 | Four ways analog output device based on CIB BUS bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620648353.7U CN205899299U (en) | 2016-06-27 | 2016-06-27 | Four ways analog output device based on CIB BUS bus |
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| Publication Number | Publication Date |
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| CN205899299U true CN205899299U (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620648353.7U Active CN205899299U (en) | 2016-06-27 | 2016-06-27 | Four ways analog output device based on CIB BUS bus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938342A (en) * | 2016-06-27 | 2016-09-14 | 华清智芯科技（北京）有限公司 | CIB-BUS bus-based four-way analog output device |
-
2016
- 2016-06-27 CN CN201620648353.7U patent/CN205899299U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938342A (en) * | 2016-06-27 | 2016-09-14 | 华清智芯科技（北京）有限公司 | CIB-BUS bus-based four-way analog output device |
| CN105938342B (en) * | 2016-06-27 | 2019-01-11 | 中通国脉物联科技南京有限公司 | A kind of four road analogue quantity output devices based on CIB-BUS bus |
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