CN200941156Y - Controller of realizing multiple measurements and control function by single port - Google Patents
Controller of realizing multiple measurements and control function by single port Download PDFInfo
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- CN200941156Y CN200941156Y CN 200620115710 CN200620115710U CN200941156Y CN 200941156 Y CN200941156 Y CN 200941156Y CN 200620115710 CN200620115710 CN 200620115710 CN 200620115710 U CN200620115710 U CN 200620115710U CN 200941156 Y CN200941156 Y CN 200941156Y
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Abstract
The utility model is related to a direct digital control device of field control and management for the building electro mechanical device monitoring and control system, in particular to a D D C which adopts a single port and has the functions of the multiple signal measurement and the multiple control signal output. The utility model comprises a micro-processing unit, a digital bus, a control unit, an input output processing unit, a channel switching unit and a port function conversion unit. The input output processing unit, the channel switching unit, the port function conversion unit and the signal terminal are sequentially connected, meanwhile the micro-processing unit, the input output processing unit, the channel switching unit and the port function conversion unit all are connected with the digital bus and the control unit. When the specific situation of the electro-mechanical device is unknown, the utility model of the simple operation has met all the detecting requirements of the field control, strengthened the adaptability of the product, improved the using flexibility, and reduced the site debugging workload of staff and the requirement for the engineering technology of staff.
Description
Technical field
The utility model relates to a kind of direct digital controller (DDC) (DDC) that is used for building the field control of electromechanical equipment supervisory system, management, is a kind of DDC that adopts single-port to possess multiple signal measurement and various control signal output function simultaneously specifically.
Technical background
The principle of work of DDC is to send into arithmetic element after treatment by the sensor of each measurement port collection site or the electric signal of electromechanical equipment generation at present, the computation rule that utilization pre-deposits carries out computing and produces the control result in real time, and on-the-spot topworks or the electromechanical equipment of output electric signal control of sending into one or more control ports generation needs after the result treatment carried out work.
At present be used for building the DDC of electromechanical equipment supervisory system both at home and abroad, the port that being used to of having all generally that quantity do not wait gathers external signal or be used to control external unit.But the function of these ports is all more single, and type is got more detailed, the function of single port or be that the input port can only be measured, or be that delivery outlet can only be controlled; And less as the signal type kind that gather the input port of measuring, the signal type that can export as the delivery outlet of control also seldom can produce the switching value signal and just can not produce analog signals, and significant limitation is arranged in the use, and adaptability is relatively poor.Because in the environment for use at the scene, exist a large amount of various inputs, the output electric signal, charged switching value signal is arranged, uncharged dry contact signal, voltage signal is arranged, current signal, resistance or the like, often the quantity of the electromechanical equipment of installing is at the scene grasped easily and is seldom changed, but difficult statistics of device type and electric interfaces and usually change, this just causes the director port function of choosing type in advance not meet the demands, cause the replacing of controller and installation once more, even owing to do not have the controller of suitable types to can not be completed on-the-spot control requirement, to having relatively high expectations of engineering technical personnel.
The utility model content
The utility model has overcome above-mentioned shortcoming, a kind of demand that satisfies to greatest extent in the rig-site utilization is provided, providing a kind of single port to can be used as the input port uses, also can be used as delivery outlet uses, and the single port that can satisfy types of signals realizes the controller of multiple measurement and control function, makes each port that has this kind function on the digitial controller to be arranged to the various signal types that input or output and be fit to respectively by internal control software.
The technical scheme in the invention for solving the technical problem is: comprise microprocessing unit, number bus and control module, input and output processing unit, passage switch unit, port function converting unit, signal port, described input and output processing unit, passage switch unit, port function converting unit, signal port connect in turn, and described microprocessing unit, input and output processing unit, passage switch unit and port function converting unit all link to each other with described number bus and control module.
Described input and output processing unit can comprise input signal processing unit, the output signal converting unit that is connected between passage switch unit and number bus and the control module, an A/D converter that links to each other with described signal processing unit also links to each other with described number bus and control module simultaneously, and a D/A converter that links to each other with described output signal converting unit also links to each other with described number bus and control module simultaneously.
Described number bus and control module can comprise control signal chip for driving, the combinational logic chip that connects in turn and latch chip, described control signal chip for driving links to each other with microprocessing unit, described latching linking to each other with described input and output processing unit, passage switch unit and port function converting unit respectively of chip.
Described input signal processing unit can comprise differential operational amplifier that links to each other with A/D converter and the electronic switch that links to each other with described passage switch unit, and the output of described differential operational amplifier links to each other with described electronic switch.
Described passage switch unit can comprise traffic pilot and the electronic switch that connects in turn, and described traffic pilot directly links to each other with described input signal processing unit, also connects described port function converting unit simultaneously.
Described output signal converting unit can comprise at least three operational amplifiers, the input end in the same way of described first operational amplifier links to each other with the output of described D/A converter, output terminal links to each other with described port function converting unit, second operational amplifier is as the feedback of the 3rd operational amplifier, input end links to each other with described passage switch unit in the same way, output terminal connects the input end in the same way of described the 3rd operational amplifier, and links to each other with the input end in the same way of first operational amplifier through a resistance.
Described port function converting unit can comprise dpdt relay and chip for driving, the input end of described chip for driving links to each other with the chip that latchs in described number bus and the control module, output links to each other with described relay coil, the common port of described relay links to each other with traffic pilot in the described passage switch unit, and Chang Kai or normally closed contact link to each other with electronic switch in the described passage switch unit.
Described relay can be the unicoil magnetic latching relay.
The utility model comprises microprocessing unit, number bus and control module, the input and output processing unit, the passage switch unit, the port function converting unit, signal port, described input and output processing unit, the passage switch unit, the port function converting unit, signal port connects in turn, described microprocessing unit, the input and output processing unit, the passage switch unit all links to each other with described number bus and control module with the port function converting unit, therefore do not knowing under the concrete condition of on-the-spot electromechanical equipment, the various TT﹠C requirements that can adapt to field control, and it is simple to operate, strengthened the adaptability of product, improved the dirigibility of using, reduced field adjustable personnel's workload, reduced requirement engineering technical personnel.
Description of drawings
Fig. 1 is a theory diagram of the present utility model
Fig. 2 is circuit theory diagrams of the present utility model
Fig. 3 is a control program process flow diagram of the present utility model
Embodiment
As shown in Figure 1, comprise microprocessing unit, number bus and control module, the MD converter, the input signal processing unit, D/A converter, the output signal converting unit, the passage switch unit, port function converting unit and signal port, described passage switch unit, the port function converting unit, signal port connects in turn, described number bus and control module all link to each other with each several part circuit except that signal port, described input signal processing unit is connected between passage switch unit and the A/D converter, described output signal converting unit is connected between the D/A converter, and what described microprocessing unit adopted is CPU and the peripheral circuit thereof that has than strength reason ability.
Be detailed circuit schematic diagram of the present utility model as shown in Figure 2, circuit shown in it has only the 7th, the 8th tunnel two group of port function converting unit, remaining circuit all is the circuit of 8 ports, and CPU does not identify in the drawings, the circuit of this utility model adopts modular structure, and the channel capacity that the quantity that increases port as needs only need enlarge other circuit unit except that CPU can realize.
Number bus and control module are made of U1, U10, U18, U19, U20, U22 and the relevant circuit that cooperates, wherein chip for driving U1, U10 link to each other with CPU, be used for to the bus that CPU element is brought write, control signal such as sheet choosing realizes driving, combinational logic chip U19 is used to produce necessary control signal, and what receive the control signal that described chip for driving U1, U10 send and control described data bus latchs chip U18, U20, U22.
A/D converter U9 is 8 passage A/D converters with parallel interface.Be used for that double-end signal is become the difference amplifier U8 of single-ended signal and 4 groups the electronic switch U12 that is attached thereto and peripheral resistance and constitute the input signal processing unit, the input of described A/D converter U9 links to each other with electronic switch U12 with described electronics difference amplifier U8, also link to each other with described chip for driving U1 simultaneously, output links to each other with the described chip U20 that latchs.
D/A converter U5 is 8 passage D/A converters with serial line interface, and amplifier U14 provides voltage reference source for D/A converter U5.Form one group of output signal converting unit by D6A, D6B, three amplifiers of D6C, form another group output signal converting unit by D4D, D5D, three amplifiers of D6D.
Described output signal converting unit is one the tunnel being example wherein, the input end in the same way of the described first operational amplifier D6A links to each other with the output of described D/A converter U5, output terminal links to each other with described port function converting unit repeat circuit K7, the second operational amplifier U6B is as the feedback of the 3rd operational amplifier U6C, input end links to each other with electronic switch U3 in the described passage switch unit in the same way, output terminal connects the input end in the same way of described the 3rd operational amplifier D6C, and links to each other through the input end in the same way of a resistance R 53 with the first operational amplifier D6A.Described D/A converter also links to each other with described chip for driving U1, and output is connected to the input end of described two groups of output signal converting units.
Form the passage switch unit by U2, U3, U6, U2, U3 are 4 groups electronic switch, are used to finish output channel and switch; U6 be can differential input 8 tunnel traffic pilot, finish the gating of input channel.Difference amplifier in the described input signal processing unit all links to each other with described traffic pilot U6 with electronic switch.
Constitute the port function converting unit by relay K 7, K8, Darlington transistor U7 and interlock circuit, described relay K 7, K8 are monocoil magnetic latching relay, the electric shock structure is a dpdt double-pole double-throw (DPDT), U7 is the chip for driving of K7, K8, inside is many group Darlington transistors, and link to each other with the coil of described relay K 7, K8, this partial circuit is mainly finished the conversion of port I/O, and links to each other with electronic switch U2, U3 and traffic pilot U6 in the described passage switch unit.The input end of described chip for driving U7 links to each other with the chip U18 that latchs in described number bus and the control module, output links to each other with the coil of described relay K 7, K8, the common port of described relay K 7, K8 links to each other with traffic pilot U6 in the described passage switch unit, and connecting each terminal in the signal port simultaneously, Chang Kai or normally closed contact link to each other with electronic switch U2, U3 in the described passage switch unit.
Principle of work of the present utility model is as shown in Figure 3: the work with the 7th road port is example.This port measurement voltage signal if desired, send the instruction of revising port function by CPU element, as step 1, and the port numbers of definite change, as step 2, be configured to the voltage measurement state by number bus and control module control input signals processing unit, as step 5, and range is set, as step 6, the U3 of control channel switch unit cuts off the 7 the tunnel simultaneously, last control port function converting unit switches to input with the 7 the tunnel, as step 5, this moment, CPU element just can be gathered voltage signal by A/D converter at any time, as step 11.This port is measured current signal if desired, and flow process and measuring voltage are basic identical, and just the control input signals processing unit is configured to the current measurement state.This port output voltage signal if desired, send instruction by CPU element, be configured to the voltage amplification state by number bus and control module control output signal converting unit, as step 7, the U3 of control channel switch unit cuts off the 7 the tunnel simultaneously, last control port function converting unit switches to output with the 7 the tunnel, and this moment, CPU element just can produce voltage signal by D/A converter at any time, as step 8.This port output current signal if desired, flow process and output voltage are basic identical, and just the U3 of control channel switch unit connects the 7 the tunnel, rather than cuts off.This port measuring resistance signal if desired, send instruction by CPU element, be configured to the voltage measurement state by number bus and control module control input signals processing unit, as step 9, control the output signal converting unit simultaneously and be configured to the voltage amplification state, as step 10, the control D/A converter produces the correspondent voltage signal, as step 11, last control port function converting unit switches to output with the 7 the tunnel, forms measuring voltage at port, and this moment, CPU element just can be gathered voltage signal by A/D converter at any time, through calculating resistance value, as step 12.
The realization flow of other functions and other ports is identical, does not just give unnecessary details one by one.
More than single port provided by the utility model is realized that the controller of multiple measurement and control function is described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (8)
1. a single port realizes the controller of multiple measurement and control function, it is characterized in that: comprise microprocessing unit, number bus and control module, input and output processing unit, passage switch unit, port function converting unit, signal port, described input and output processing unit, passage switch unit, port function converting unit, signal port connect in turn, and described microprocessing unit, input and output processing unit, passage switch unit and port function converting unit all link to each other with described number bus and control module.
2. single port according to claim 1 realizes the controller of multiple measurement and control function, it is characterized in that: described input and output processing unit comprises input signal processing unit, the output signal converting unit that is connected between passage switch unit and number bus and the control module, an A/D converter that links to each other with described signal processing unit also links to each other with described number bus and control module simultaneously, and a D/A converter that links to each other with described output signal converting unit also links to each other with described number bus and control module simultaneously.
3. single port according to claim 1 and 2 realizes the controller of multiple measurement and control function, it is characterized in that: described number bus and control module comprise control signal chip for driving, the combinational logic chip that connects in turn and latch chip, described control signal chip for driving links to each other with microprocessing unit, described latching linking to each other with described input and output processing unit, passage switch unit and port function converting unit respectively of chip.
4. single port according to claim 2 realizes the controller of multiple measurement and control function, it is characterized in that: described input signal processing unit comprises differential operational amplifier that links to each other with A/D converter and the electronic switch that links to each other with described passage switch unit, and the output of described differential operational amplifier links to each other with described electronic switch.
5. single port according to claim 1 and 2 realizes the controller of multiple measurement and control function, it is characterized in that: described passage switch unit comprises traffic pilot and the electronic switch that connects in turn, described traffic pilot directly links to each other with described input and output processing unit, also connects described port function converting unit simultaneously.
6. single port according to claim 2 realizes the controller of multiple measurement and control function, it is characterized in that: described output signal converting unit comprises at least three operational amplifiers, the input end in the same way of described first operational amplifier links to each other with the output of described D/A converter, output terminal links to each other with described port function converting unit, second operational amplifier is as the feedback of the 3rd operational amplifier, input end links to each other with described passage switch unit in the same way, output terminal connects the input end in the same way of described the 3rd operational amplifier, and links to each other with the input end in the same way of first operational amplifier through a resistance.
7. single port according to claim 4 realizes the controller of multiple measurement and control function, it is characterized in that: described port function converting unit dpdt relay and chip for driving, the input end of described chip for driving links to each other with the chip that latchs in described number bus and the control module, output links to each other with described relay coil, the common port of described relay links to each other with traffic pilot in the described passage switch unit, and Chang Kai or normally closed contact link to each other with electronic switch in the described passage switch unit.
8. single port according to claim 7 realizes the controller of multiple measurement and control function, it is characterized in that: described relay is the unicoil magnetic latching relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620115710 CN200941156Y (en) | 2006-05-31 | 2006-05-31 | Controller of realizing multiple measurements and control function by single port |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620115710 CN200941156Y (en) | 2006-05-31 | 2006-05-31 | Controller of realizing multiple measurements and control function by single port |
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| Publication Number | Publication Date |
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| CN200941156Y true CN200941156Y (en) | 2007-08-29 |
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| CN 200620115710 Expired - Fee Related CN200941156Y (en) | 2006-05-31 | 2006-05-31 | Controller of realizing multiple measurements and control function by single port |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639519B (en) * | 2008-07-31 | 2012-05-30 | 鸿富锦精密工业（深圳）有限公司 | Detection 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 |
| CN104716526A (en) * | 2013-12-13 | 2015-06-17 | 南京南瑞继保电气有限公司 | Signal terminal reusing method and device |
| CN105302001A (en) * | 2015-11-20 | 2016-02-03 | 珠海格力电器股份有限公司 | Control method and control device of servo driver |
| CN106771404A (en) * | 2016-12-31 | 2017-05-31 | 国网浙江省电力公司金华供电公司 | With respect to dielectric loss measuring instrument multifunction converter |
| CN108700855A (en) * | 2017-03-09 | 2018-10-23 | 深圳市大疆创新科技有限公司 | The channels F control method and device |
| CN115567010A (en) * | 2022-10-12 | 2023-01-03 | 中船重工安谱（湖北）仪器有限公司 | Input source control system and method and amplifying circuit |
-
2006
- 2006-05-31 CN CN 200620115710 patent/CN200941156Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639519B (en) * | 2008-07-31 | 2012-05-30 | 鸿富锦精密工业（深圳）有限公司 | Detection 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 |
| CN104716526A (en) * | 2013-12-13 | 2015-06-17 | 南京南瑞继保电气有限公司 | Signal terminal reusing method and device |
| CN105302001A (en) * | 2015-11-20 | 2016-02-03 | 珠海格力电器股份有限公司 | Control method and control device of servo driver |
| CN105302001B (en) * | 2015-11-20 | 2017-11-24 | 珠海格力电器股份有限公司 | A kind of control method and device of servo-driver |
| CN106771404A (en) * | 2016-12-31 | 2017-05-31 | 国网浙江省电力公司金华供电公司 | With respect to dielectric loss measuring instrument multifunction converter |
| CN108700855A (en) * | 2017-03-09 | 2018-10-23 | 深圳市大疆创新科技有限公司 | The channels F control method and device |
| CN115567010A (en) * | 2022-10-12 | 2023-01-03 | 中船重工安谱（湖北）仪器有限公司 | Input source control system and method and amplifying circuit |
| CN115567010B (en) * | 2022-10-12 | 2024-01-30 | 中船重工安谱（湖北）仪器有限公司 | Input source control system, method and amplifying circuit |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |