CN203982129U - The on-the-spot many specifications acquisition controller of a kind of heat supply - Google Patents
The on-the-spot many specifications acquisition controller of a kind of heat supply Download PDFInfo
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- CN203982129U CN203982129U CN201420409482.1U CN201420409482U CN203982129U CN 203982129 U CN203982129 U CN 203982129U CN 201420409482 U CN201420409482 U CN 201420409482U CN 203982129 U CN203982129 U CN 203982129U
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Abstract
The on-the-spot many specifications acquisition controller of a kind of heat supply, comprise: CPU(1), RS485 interface (2), DS18B20 interface (3), 4-20mA exports (4), 0-10V exports (5), toggle switch (6), AD(7), button (8), LCD shows (9), DO(10), DI(11), power module (12) composition, controller uses DC12V Power supply, by toggle switch (6), make the on-the-spot common resistance signal of heat supply, 4-20mA signal, 0-10V voltage signal can be linked into AD(7) terminals, controller can outputting standard 4-20mA signal and 0-10V signal, realize the equipment at heat supply scene is controlled, by button (8), controller is configured and is operated, RS485 interface (2) can facilitate controller and host computer and slave computer to communicate, DO(10) and DI(11) interface can be realized on-the-spot switchgear collection and control, LCD shows that (9) can show image data and operating process in real time.The utility model, with respect to traditional heat supply collection in worksite opertaing device, has integrated level high, uses flexibly.
Description
Technical field
The utility model relates to the on-the-spot many specifications acquisition controller of a kind of heat supply, for heating system on-site data gathering, equipment control and communication.
Background technology
At heating system scene, the collection of various data is with the control of equipment and communicate by letter and be absolutely necessary, and generally need to gather the signals such as pressure, temperature, valve opening, and by-pass valve control aperture, communicates etc. with host computer.Due to on-the-spot equipment difference, the output signal specification of these equipment is also different, the on-the-spot conventional equipment of for example heat supply has pressure transducer, temperature sensor, motorized valve, switch valve, hotlist etc., their output specification has resistance signal, 4-20mA signal, 0-10V signal, 0-5V signal, RS485 signal, switching signal etc., on-the-spot opertaing device generally has frequency converter, motorized valve, switch valve etc., the common control signal specification of these equipment is generally 4-10mA, 0-10V, RS485 etc., on-the-spot signals collecting and the control of equipment and the disunity of signal of communication has determined that heat supply scene needs different equipment gather respectively and control, this has not only increased complexity in integrated level, and increase the difficulty of field adjustable.So need a kind of acquisition controller badly, need not add the signal that unnecessary treatment circuit just can collection site plurality of specifications, control on-the-spot various control signal specification equipment, so just can reduce on-the-spot collecting device, easy field adjustable, lifting work efficiency.
summary of the invention
In order to overcome the shortcoming of above-mentioned background technology, the purpose of this utility model is to provide the on-the-spot many specifications acquisition controller of a kind of heat supply.
To achieve these goals, the technical scheme of patent of the present invention:
The on-the-spot many specifications acquisition controller of a kind of heat supply, it is characterized in that by CPU(1), RS485 interface (2) DS18B20 interface (3), 4-20mA exports (4), 0-10V exports (5), toggle switch (6), AD(7), button (8), LCD shows (9), DO(10), DI(11), power module (12) composition, wherein power supply is processed and CPU(1 through power module (12)) be connected, AD(7) by toggle switch (6) access CPU(1), RS485 interface (2), DS18B20 interface (3), 4-20mA exports (4), 0-10V exports (5), button (8), LCD shows (9), DO(10), DI(11) directly with CPU(1) be connected.
Further, described power module (12) makes controller use DC12V Power supply.
Further, described RS485 interface (2) has two.
Further, described DS18B20 sensor interface (3) has two.
Further, described button (8) has four.
Further, described AD(7) by toggle switch (6) configuration input specification, make CPU(1) can adopt
Collection 4-20mA, 0-10V, resistance signal.
Further, described 4-20mA output (4), can control and need standard current signal establishing as control signal
Standby.
Further, described 0-10V output (5), can control and need the equipment of standard voltage signal as control signal.
Further, described DI(11) there is one, can gather switching signal.
Further, described DO(10) there are two, can export the switch controlling signal of two-way.
Further, described LCD shows (9), has 2.8 inches of TFT LCD display, can realize the demonstration of parameter.
The on-the-spot many specifications acquisition controller of heat supply comprises the CPU for realizing core control; For gathering the DS18B20 interface of digital temperature sensor; For 8 road AD interfaces of acquiring heat supply in-site modeling amount signal; For configuring the toggle switch of selecting analog acquisition specification; For 1 road DI interface of collection site digital quantity signal; Be used for exporting analog quantity control signal 0-10V interface; Be used for exporting analog quantity control signal 4-20mA interface; Be used for exporting discrete control signal DO interface; For the button of operation control; LCD for display parameter shows; The power module of controller being powered with processing DC12V power supply.
The on-the-spot many specifications acquisition controller of heat supply can gather three kinds by same interface in conjunction with toggle switch
The analog signals of different size is respectively resistance signal, DC4-20mA current signal, DC0-10V electricity
Press signal, acquisition principle is as follows:
The on-the-spot many specifications acquisition controller of heat supply gathers resistance signal principle: each analog quantity of controller is adopted
Collection interface has 3 terminals, and referring to accompanying drawing 2, wherein 2 is DC5V and DC0V, and another one is
AD Gather and input interface, in the time accessing on-the-spot resistance signal, is equivalent to access a slide rheostat,
DC5V and DC0V are linked into the two ends of slide rheostat, and the slippery fellow of slide rheostat is linked into remaining one
AD acquisition interface, resistance signal just changes voltage signal into like this, and toggle switch is allocated to " 0 " switch place,
Voltage signal, through operational amplifier processing, is linked in CPU, represents by key configurations resistance signal
Quantities scope, CPU, through calculation process, shows the engineering value of resistance signal representative on LCD.
The on-the-spot many specifications acquisition controller of heat supply gathers voltage signal principle: each analog acquisition interface of controller has 3 terminals, referring to accompanying drawing 2, wherein 2 is DC5V and DC0V, another one is AD Gather and input interface, so in the time gathering DC0-10V voltage signal, DC0-10V voltage signal should be linked into Gather and input interface and DC0V end, do not connect and DC5V signal end is unsettled, toggle switch is allocated to " 0 " switch place, so just be equivalent to directly voltage signal accessed to controller, voltage signal is through operational amplifier processing, become the signal that CPU can directly gather, through the quantities scope of key configurations voltage signal representative, CPU is through calculation process, on LCD, show the engineering value of DC0-10V voltage signal representative.
The on-the-spot many specifications acquisition controller of heat supply gathers current signal principle: each analog quantity of controller is adopted
Collection interface has 3 terminals, and wherein 2 is DC5V and DC0V, and another one is that AD Gather and input connects
Mouthful, while gathering DC4-20mA current signal, should by current signal be linked into Gather and input interface and
DC0V end, does not connect and DC5V signal end is unsettled, toggle switch is allocated to " 1 " simultaneously and locates, now electric current
Signal first seals in 1 250 Ω precision resistance, has so just realized current signal and has changed voltage signal into, voltage
Signal, through operational amplifier processing, becomes the voltage signal that CPU can directly gather, and passes through key configurations
The quantities value range that current signal is corresponding, CPU, through calculation process, shows concrete quantities at LCD
Value.
The operational method of many specifications acquisition controller CPU to collection signal:
The sensor output signal at heat supply scene is all linear signals mostly, and its corresponding quantities computing formula is as follows:
The corresponding quantities of different size signal is y:
In formula, x is collection value, and according to gathering analog quantity different size, unit is respectively: mA, V, Ω.
The maximum engineering value of collection that in formula, H is sensor.
Brief description of the drawings
Fig. 1 is acquisition controller composition diagram.
Tu2Wei Mei road AD interface schema.
Fig. 3 is acquisition controller flow chart.
Specific embodiments
Many specifications acquisition controller comprises CPU(1), RS485 interface (2), DS18B20 interface (3), 4-20mA output (4), 0-10V output (5), toggle switch (6), AD(7), button (8), LCD show (9), DO(10), DI(11), power module (12).DC12V is linked into power module (12) upper, the digital temperature sensor at heat supply scene is linked on DS18B20 interface (3).Judge collection in worksite sensor output signal type, if resistance signal, receive 3 ports of any AD acquisition channel, wherein port one and 3 is received respectively all-in resistance two ends, port 2 is received on swept resistance, if voltage signal, be linked on port 2 and 3, wherein port one end is unsettled does not connect, and port 3 should connect voltage negative terminal, if current signal, be linked on port 2 and 3, wherein port one end is unsettled does not connect, and port 3 should connect electric current negative terminal, the dial-up of corresponding A D passage is allocated to " 1 " simultaneously and locates, referring to accompanying drawing 2.According to the control signal type selecting controller output end of field apparatus, if on-the-spot equipment needs 4-20mA control signal, the control end of equipment is connected with the 4-20mA output (4) of controller, if on-the-spot equipment needs 0-10V control signal, the control end of equipment is connected with the 0-10V output (5) of controller.Many specifications acquisition controller is supported modbus communication protocol, can be connected communication with host computer or slave computer by RS485 interface (2).
After heat supply spot sensor and the wiring of equipment and control device are correct, by DC12V voltage access power module (12), the LCD of controller shows (8) main display frame, it is now the default configuration that is configured to of controller, need to be according to the situation change control device configuration at heat supply scene, length exceedes 2 seconds by button 1, enter configuration picture, different configuration parameters are switched in now button 1 representative, button 4 represents the displacement of configuration parameter, button 2 represents the increase of configuration parameter, button 3 represents reducing of configuration parameter, by the shift function of button 4, realize the not coordination of parameter configuration, realize and select the increasing of position and subtract in conjunction with button 2 and 3, and then can realize the rapid configuration of parameter.After parameter configuration completes, length exceedes 2 seconds by button 4, is back to main display frame, and controller starts to show in real time the collection at heat supply scene and controls data.
Length exceedes 2 seconds by button 4, enter into control signal picture is set, realize the switching of different control signals by button 1, push button 1 once, switch once, when determining after control signal, realize the displacement of control signal position by button 4, realize the increase of control signal position and reduce by button 2 and 3, and then realize the setting of control signal, after control signal setting completes, if exceed 5 seconds without the running time, auto-returned is to main display frame, and LCD shows image data in real time, the control signal that output arranges simultaneously, referring to accompanying drawing 3.
Claims (7)
1. the on-the-spot many specifications acquisition controller of heat supply, it is characterized in that by CPU(1), RS485 interface (2), DS18B20 interface (3), 4-20mA exports (4), 0-10V exports (5), toggle switch (6), AD(7), button (8), LCD shows (9), DO(10), DI(11), power module (12) composition, wherein power supply is processed and CPU(1 through power module (12)) be connected, AD(7) by toggle switch (6) access CPU(1), RS485 interface (2), DS18B20 interface (3), 4-20mA exports (4), 0-10V exports (5), button (8), LCD shows (9), DO(10), DI(11) directly with CPU(1) be connected.
2. acquisition controller according to claim 1, is characterized in that using DC12V Power supply.
3. acquisition controller according to claim 1, is characterized in that having 2 road RS485 interfaces (2).
4. acquisition controller according to claim 1, is characterized in that having 2 road DS18B20 interfaces (3), directly cut-in temperature sensor DS18B20, treatment circuit that need not be extra.
5. acquisition controller according to claim 1, is characterized in that having 8 road AD(7) acquisition interface, can gather 4-20mA, 0-10V, 0-5V signal, gather specification by toggle switch (6) and select.
6. acquisition controller according to claim 1, is characterized in that having 4 buttons (8) and 1 2.8 inches of TFT LCD shows (9).
7. acquisition controller according to claim 1, is characterized in that having the DO(10 of two-way) output controls and the DI(11 on 1 tunnel) collection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420409482.1U CN203982129U (en) | 2014-07-24 | 2014-07-24 | The on-the-spot many specifications acquisition controller of a kind of heat supply |
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| CN201420409482.1U CN203982129U (en) | 2014-07-24 | 2014-07-24 | The on-the-spot many specifications acquisition controller of a kind of heat supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249635A (en) * | 2015-06-11 | 2016-12-21 | 北京金房暖通节能技术股份有限公司 | A kind of intelligent terminal for Internet of things system |
| CN111273583A (en) * | 2020-02-12 | 2020-06-12 | 北京金房暖通节能技术股份有限公司 | Intelligent water replenishing controller |
-
2014
- 2014-07-24 CN CN201420409482.1U patent/CN203982129U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249635A (en) * | 2015-06-11 | 2016-12-21 | 北京金房暖通节能技术股份有限公司 | A kind of intelligent terminal for Internet of things system |
| CN111273583A (en) * | 2020-02-12 | 2020-06-12 | 北京金房暖通节能技术股份有限公司 | Intelligent water replenishing controller |
| CN111273583B (en) * | 2020-02-12 | 2021-10-26 | 北京金房暖通节能技术股份有限公司 | Intelligent water replenishing controller |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 2273, block B, No. 9, super Road, Beijing, Changping District Patentee after: Jinfang Energy Group Co.,Ltd. Address before: Room 2273, block B, No. 9, super Road, Beijing, Changping District Patentee before: BEIJING KINGFORE HVAC ENERGY SAVING TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |