CN2074954U - Multi-parameter all-automatic controlling instrument - Google Patents
Multi-parameter all-automatic controlling instrument Download PDFInfo
- Publication number
- CN2074954U CN2074954U CN90218436U CN90218436U CN2074954U CN 2074954 U CN2074954 U CN 2074954U CN 90218436 U CN90218436 U CN 90218436U CN 90218436 U CN90218436 U CN 90218436U CN 2074954 U CN2074954 U CN 2074954U
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- converter
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- microprocessor
- parameter
- master controller
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- 238000007493 shaping process Methods 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000009022 nonlinear effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Abstract
The utility model discloses a multi-parameter all-automatic controlling instrument which is composed of a box body, a power supply, a thread hole and a control circuit. The end head of the box body is provided with a panel provided with digital and command display operating keys. The multi-parameter all-automatic controlling instrument is characterized in that the control circuit is composed of an input connector, a main controller, an output connector and an emergent connector. The multi-parameter all-automatic controlling instrument is connected between a sensor and a frequency governor, which can control the rotational speed of a motor, can measure various parameters, and can preset the range, the fixed value and the mutual conventional relationship of multi-parameters according to a practical situation. The full-automatic control with multi-drop and multi-parameter can be obtained.
Description
The utility model belongs to a kind of control, adjusting device, and particularly suitable has measurement, control, the regulating circuit of variable-frequency governor.
Variable-frequency governor is a kind of stepless speed-regulating device that can be used for all kinds of motors, and it has advantages such as good energy-conserving effect, volume be little.The application of variable-frequency governor, need the signal of transducer output is carried out observing and controlling, Chinese patent application 89201349.4, a kind of variable constant voltage Automatic Control cabinet has been proposed, can realize the automatic starting and the adjusting of motor, but because the circuit employing is simple traditional analog and digital bombination circuit, can not carry out observing and controlling to multiple signals simultaneously, especially to the special control occasion of the relation of keeping within bounds is arranged between multiple signals, can not judge and the computing adjustment, can not carry out self-timing control, more can not be used for the nonlinear properties input, such as in urban district heating system, this is to belong to multiple branch circuit, at a distance, to its water temperature, pressure, flow needs level pressure, constant temperature, timing controlled, these parameters and rotating speed are not linear relationships, therefore this Automatic Control cabinet also has certain limitation in actual applications.
The purpose of this utility model is many reference amounts full-automatic controller that has intelligent function of design, this many reference amounts full-automatic controller and variable-frequency governor needing to be used for coming the controlling filed of level pressure, constant temperature, timing fashionable by the control motor speed, can measure the different kinds of parameters of being controlled, and can preestablish amount limit, the definite value of multi-parameter and arrange relation mutually according to actual conditions, reach the Automatic Control of multiple spot, many reference amounts.
Many reference amounts full-automatic controller of the present utility model, form by casing, power supply, through wires hole and control circuit, the panel of numeral, order display operation key is installed in the termination of casing, and it is characterized in that: control circuit is made of input connector, master controller, out connector, rapid connector:
Input connector is 8 independently operational amplifier A by two integrated circuits
1To A
8Form, an end of operational amplifier is connected with property sensor, and an end is connected with the A/D converter of master controller, is connected to computing resistance at the link with property sensor;
Master controller is by microprocessor, memory, diverter switch and A/D analog converter, two groups of buffer registers and two independent D/A digital to analog converter are formed, microprocessor is connected to and rapid connector, the end that control panel is connected with the master control warning, one end is connected with the pool of buffer register with D/A converter, the other end is a diverter switch with the integrated circuit that is packaged together, A/D converter and another group buffer register connect, wherein pool of buffer register one is terminated between microprocessor and the A/D diverter switch, one end is connected with memory, another group buffer register one is terminated between microprocessor and the D/A converter, and the other end is connected to memory; The parallel connection of two independent D/A converter, one is terminated between microprocessor and the buffering register, and an end is connected with out connector;
Out connector is by two operational amplifier A
9, A
10Form, the two-way D/A converter of an end and master controller is connected, and an end is used to connect variable-frequency governor;
Rapid connector is by two-way amplifier A
11, A
12And shaping circuit forms, the termination transducer of meeting an urgent need, and an end is connected with microprocessor, and emergency alarm device is arranged between the two-way.
The operation principle of many reference amounts full-automatic controller of the present utility model is: this device is connected between transducer and the variable-frequency governor, at first need preestablish measured parameter, amount limit, warning, timing etc. to master controller by the user according to the scene of actual use occasion, master controller is promptly according to user's requirement, from the signal of input connector order receiving sensor.Input connector can connect 8 various kinds of sensors at most, and these transducers can be linear output, also can be non-linear output, by master controller signal are adjusted and are compensated, and signal is exaggerated respectively by input connector, sends into master controller then.Master controller switches one by one to signal, scanning, become digital signal by the A/D converter then and send into microprocessor again, microprocessor is then according to selecting program that configure, that be stored in the memory that above-mentioned signal is differentiated by designer's establishment, user, filtering, shaping, paraphase, calculate and revise, send into the D/A digital to analog converter again by output interface then and become and be the needed analog signal of variable-frequency governor.This analog signal is two-way output, and two variable-frequency governors of may command can be extended to multichannel in case of necessity respectively.When dangerous situation appears in system, remove master controller and at first report to the police, the signal one tunnel of its alarm sensor is directly sent into microprocessor, makes it enter alarm condition, and the warning connector that another Lu Zeke driving is established in addition gives the alarm it and carries out action.
The utility model is compared with the full-automatic cabinet of existing variable constant voltage, has the function of many reference amounts Automatic Control, and the signal input of transducer can be linear input and non-linear input, and practical, reasonable in design, is easy to adjust, and can has the unit instrument of one's own.Can be used for the occasion of multichannel measuring multiple parameters, control rotating speed, also can be used to control respectively the variable-frequency governor of different capacity to adapt to the motor of different capacity.
The utility model can be used for the central heating system of the long distance in city, multiple branch circuit, and it can distinguish Control Circulation water pump and make-up pump, also the force (forcing) pump of may command branch road.In addition, can also be used for the occasion that other liquid, material etc. need speed Control, time control.
Below in conjunction with drawings and Examples the utility model is described further.
Fig. 1 is the theory diagram of many reference amounts full-automatic controller
Fig. 2 is the electric principle sketch of many reference amounts full-automatic controller
Fig. 3 is the profile schematic diagram of many reference amounts full-automatic controller
The utility model is achieved in that in one 400 * 600 * 120 millimeters casing 8, and transformer frequency response 1 is housed, and is used for supplying the power supply of complete machine and transducer.Control panel 2 is that the user carries out preliminary setting parameter and alarm indication.Master controller 3 is to be placed in the shielded box, in case electromagnetic interference.Input connector 4 is used for being connected transducer and is placed in the outer variable-frequency governor of casing with out connector 5.Through wires hole 6 is used to connect all kinds of leads in instrument container.
Out connector 5 is by two operational amplifier A
9, A
10Form, the two-way D/A converter of an end and master controller is connected, and an end is used to connect variable-frequency governor, and it is the signal that D/A converter is sent here to be carried out 1:1 amplify, and it has isolation and load capacity and has short-circuit protection function.
Panel 2 is parts that this device and user talk with mutually, the user can use it to carry out the setting and the selection of parameter in advance, and alarming threshold value is set, also can numeral, order demonstration, operation keys be housed in the termination of this device box in this agreement relation of selecting parameter.
Claims (1)
1, a kind of many reference amounts full-automatic controller, form by casing, variable-voltage power supply, through wires hole and control circuit, the panel of numeral, order display operation key is installed in the termination of casing, and it is characterized in that: control circuit is made of input connector, master controller, out connector, rapid connector:
Input connector is 8 independently operational amplifier A by two integrated circuits
1To A
3, an end of operational amplifier is connected with property sensor, and an end is connected with the A/D converter of master controller, is connected to computing resistance at the link with property sensor;
Master controller is by microprocessor, memory, diverter switch and A/D analog converter, two groups of buffer registers and two independent D/A digital to analog converter are formed, microprocessor is connected to and rapid connector, the end that control panel is connected with the master control warning, one end is connected with the pool of buffer register with D/A converter, the other end is a diverter switch with the integrated circuit that is packaged together, A/D converter and another group buffer register connect, wherein pool of buffer register one is terminated between microprocessor and the A/D diverter switch, one end is connected with memory, another group buffer register one is terminated between microprocessor and the D/A converter, and the other end is connected to memory; The parallel connection of two independent D/A converter, one is terminated between microprocessor and the buffering register, and an end is connected with out connector;
Out connector is by two operational amplifier A
9, A
10Form, the two-way D/A converter of an end and master controller is connected, and an end is used to connect variable-frequency governor;
Rapid connector is by two-way amplifier A
11, A
12And shaping circuit forms, the termination transducer of meeting an urgent need, and an end is connected with microprocessor, and emergency alarm device is arranged between the two-way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90218436U CN2074954U (en) | 1990-08-28 | 1990-08-28 | Multi-parameter all-automatic controlling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90218436U CN2074954U (en) | 1990-08-28 | 1990-08-28 | Multi-parameter all-automatic controlling instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2074954U true CN2074954U (en) | 1991-04-10 |
Family
ID=4897257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90218436U Withdrawn CN2074954U (en) | 1990-08-28 | 1990-08-28 | Multi-parameter all-automatic controlling instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2074954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7447612B2 (en) | 2002-03-06 | 2008-11-04 | Fisher-Rosemount Systems, Inc. | Appendable system and devices for data acquisition, analysis and control |
-
1990
- 1990-08-28 CN CN90218436U patent/CN2074954U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7447612B2 (en) | 2002-03-06 | 2008-11-04 | Fisher-Rosemount Systems, Inc. | Appendable system and devices for data acquisition, analysis and control |
| US7848906B2 (en) | 2002-03-06 | 2010-12-07 | Fisher-Rosemount Systems, Inc. | Appendable system and devices for data acquisition, analysis and control |
| US8538732B2 (en) | 2002-03-06 | 2013-09-17 | Fisher-Rosemount Systems, Inc. | Appendable system and devices for data acquisition, analysis and control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |