CN105043515A - Liquid weighing sensor system designed by adopting ultra-low power dissipation module - Google Patents
Liquid weighing sensor system designed by adopting ultra-low power dissipation module Download PDFInfo
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- CN105043515A CN105043515A CN201510493039.6A CN201510493039A CN105043515A CN 105043515 A CN105043515 A CN 105043515A CN 201510493039 A CN201510493039 A CN 201510493039A CN 105043515 A CN105043515 A CN 105043515A
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Abstract
The invention discloses a liquid weighing sensing system designed by adopting an ultra-low power dissipation module. The liquid weighing sensing system is mainly composed of a pressure sensor, a V/F processing circuit, a solenoid valve, a control circuit, a central processor, a communication interface circuit and a slave unit, wherein the pressure sensor is connected with the V/F processing circuit, the V/F processing circuit is connected with the central processor, the central processor is connected with the control circuit, the control circuit is connected with the solenoid valve, the slave unit is connected with the communication interface circuit, and the communication interface circuit is connected with the central processor. According to the liquid weighing sensing system of the invention, sensor technologies are utilized to perform liquid weighing. With the liquid weighing sensing system designed by adopting the ultra-low power dissipation module adopted, the level of liquid can be detected fast and efficiently, and the weight of the liquid can be calculated. The liquid weighing sensing system has the advantages of reasonable design, being scientific and practical and the like.
Description
Technical field
The present invention relates to sensor technical field, specifically, be a kind of adopt super low-power consumption Model Design for liquid weighing sensor-based system.
Background technology
The feature of liquid internal pressure is: liquid is subject to Action of Gravity Field; Liquid has mobility.Because liquid is subject to Action of Gravity Field, therefore the pressure caused by the gravity of liquid itself is just there is in the inside of liquid, push away card from experimental result and theory all to show, this pressure equals the product of the quality of liquid unit volume and the degree of depth at liquid place place, i.e. p=ρ gh (in formula g ≈ 9.8 newton/kilogram namely local acceleration of gravity).Known by formula, the pressure of liquid internal is relevant with the degree of depth, and the degree of depth increases, and pressure is also along with increase.
The formula of liquid pressure is: p=ρ gh;
Its expression formula can be converted into:
Liquid pressure Producing reason is because liquid is by the effect of gravity, if liquid is when weightlessness, can will say without pressure.
Because liquid has mobility, the pressure that it produces has following several feature:
(1) liquid is except producing except pressure to container bottom, also produces pressure to the sidewall of " restriction " its flowing.Solid then only produces pressure to its carrying plane, and direction is always vertical with carrying plane.
(2) pressure is had at liquid internal to all directions, all equal to the pressure of all directions in the same degree of depth.
(3) formula calculating liquid pressure is p=ρ gh.Visible, the size of liquid pressure only depends on kind (i.e. density p) and the degree of depth h of liquid, and and the quality of liquid, volume direct relation.
(4) pressure that the liquid in closed container can be subject to it by original size to all directions transmission.
The pressure that container bottom is subject to liquid is not necessarily equal with the gravity of liquid.Container bottom is subject to the pressure F=pS=ρ ghS of liquid, wherein " hS " to be floorage be S, be highly the volume of the fluid column of h, " ρ ghS " is the gravity of this fluid column.Because liquid is slant setting likely.So its size of the pressure that container bottom is subject to may equal, and also may be greater than or less than the gravity of liquid itself.
Sensing technology, broadly will can convert information about power to multiple non electrical quantity exactly, and utilizes the account form of science non electrical quantity information to be calculated.
Summary of the invention
The object of the invention is to design a kind of adopt super low-power consumption Model Design for liquid weighing sensor-based system, sensor technology is utilized to carry out liquid weighing, adopt ultralow Consumption for liquid weighing sensor-based system, can detect liquid level fast and effectively, and calculating liquid weight, whole system has the characteristics such as reasonable in design, science is practical.
The present invention is achieved through the following technical solutions: a kind of adopt super low-power consumption Model Design for liquid weighing sensor-based system, primarily of pressure transducer, V/F treatment circuit, solenoid valve, control circuit, central processing unit, communication interface circuit and slave machine, described pressure transducer connects V/F treatment circuit, described V/F treatment circuit connects central processing unit, described central processing unit connection control circuit, described control circuit connected electromagnetic valve, described from machine connecting communication interface circuit, described communication interface circuit connects central processing unit;
Wherein, pressure transducer, is placed in liquid internal, liquid effects pressure is thereon converted to analog voltage signal and exports;
V/F treatment circuit, the analog voltage signal sent by pressure transducer converts digital voltage signal to;
Central processing unit, completes the overall treatment of each road signal;
Control circuit, the steering order that central processing unit sends is converted to the electric signal that can perform for solenoid valve through it;
Solenoid valve, for carrying out the liquid level regulable control of liquid;
Communication interface circuit, for central processing unit and from the connection communication between machine;
From machine, can complete the various optimum configurations to central processing unit, operational order the upper management function such as to assign.
Further, to better implement the present invention, user can the information such as the liquid level knowing liquid, weight of quicklook, be provided with following structure especially: also comprise liquid crystal drive interface and liquid crystal display, described central processing unit connects liquid crystal drive interface, described liquid crystal drive interface connecting fluid crystal display.
Further, to better implement the present invention, the reduction power consumption of whole system can tried one's best, is provided with following structure especially: described liquid crystal display is LED liquid crystal display.
To better implement the present invention, further, when the liquid level of liquid or weight are in the early warning value set by system, can inform user timely, be provided with following structure especially: also comprise audible-visual annunciator, described audible-visual annunciator connects central processing unit.
Further, to better implement the present invention, what user can be convenient arranges certain operations instruction or operates, and is provided with following structure especially: also comprise mouse key cover, and described central processing unit connects mouse key cover.
Further, to better implement the present invention, being convenient to central processing unit can powered operation, is provided with following structure especially: also comprise feed circuit, and described feed circuit connect central processing unit.
The present invention compared with prior art, has the following advantages and beneficial effect:
The present invention utilizes sensor technology to carry out liquid weighing, adopt ultralow Consumption for liquid weighing sensor-based system, can detect liquid level fast and effectively, and calculate liquid weight, whole system has the characteristics such as reasonable in design, science is practical.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1:
A kind of adopt super low-power consumption Model Design for liquid weighing sensor-based system, as shown in Figure 1, primarily of pressure transducer, V/F treatment circuit, solenoid valve, control circuit, central processing unit, communication interface circuit and slave machine, described pressure transducer connects V/F treatment circuit, described V/F treatment circuit connects central processing unit, described central processing unit connection control circuit, described control circuit connected electromagnetic valve, described from machine connecting communication interface circuit, described communication interface circuit connects central processing unit;
Wherein, pressure transducer, is placed in liquid internal, liquid effects pressure is thereon converted to analog voltage signal and exports;
V/F treatment circuit, the analog voltage signal sent by pressure transducer converts digital voltage signal to;
Central processing unit, completes the overall treatment of each road signal;
Control circuit, the steering order that central processing unit sends is converted to the electric signal that can perform for solenoid valve through it;
Solenoid valve, for carrying out the liquid level regulable control of liquid;
Communication interface circuit, for central processing unit and from the connection communication between machine;
From machine, can complete the various optimum configurations to central processing unit, operational order the upper management function such as to assign.
Embodiment 2:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, further, to better implement the present invention, user can the liquid level knowing liquid of quicklook, the information such as weight, as shown in Figure 1, be provided with following structure especially: primarily of pressure transducer, V/F treatment circuit, solenoid valve, control circuit, central processing unit, communication interface circuit and slave machine, described pressure transducer connects V/F treatment circuit, described V/F treatment circuit connects central processing unit, described central processing unit connection control circuit, described control circuit connected electromagnetic valve, described from machine connecting communication interface circuit, described communication interface circuit connects central processing unit,
Wherein, pressure transducer, is placed in liquid internal, liquid effects pressure is thereon converted to analog voltage signal and exports;
V/F treatment circuit, the analog voltage signal sent by pressure transducer converts digital voltage signal to;
Central processing unit, completes the overall treatment of each road signal;
Control circuit, the steering order that central processing unit sends is converted to the electric signal that can perform for solenoid valve through it;
Solenoid valve, for carrying out the liquid level regulable control of liquid;
Communication interface circuit, for central processing unit and from the connection communication between machine;
From machine, can complete the various optimum configurations to central processing unit, operational order the upper management function such as to assign.
Also comprise liquid crystal drive interface and liquid crystal display, described central processing unit connects liquid crystal drive interface, described liquid crystal drive interface connecting fluid crystal display;
Liquid crystal drive interface, for being wanted by central processing unit the Signal transmissions carrying out on a liquid crystal display showing in liquid crystal display, shows in order to liquid crystal display;
Liquid crystal display, visualize the information that the needs that liquid crystal drive interface transmits show is shown.
Embodiment 3:
The present embodiment is at the enterprising one-step optimization in the basis of above-mentioned any embodiment, further, to better implement the present invention, the reduction power consumption of whole system can tried one's best, as shown in Figure 1, following structure is provided with especially: described liquid crystal display is LED liquid crystal display.
Embodiment 4:
The present embodiment is at the enterprising one-step optimization in the basis of above-mentioned any embodiment, to better implement the present invention, further, when the liquid level of liquid or weight are in the early warning value set by system, user can be informed timely, as shown in Figure 1, be provided with following structure especially: also comprise audible-visual annunciator, described audible-visual annunciator connects central processing unit, in use, when being in alert status, audible-visual annunciator is reported to the police utilizing sound and light alarm principle.
Embodiment 5:
The present embodiment is at the enterprising one-step optimization in the basis of above-mentioned any embodiment, further, to better implement the present invention, user can be convenient certain operations instruction is set or operates, as shown in Figure 1, be provided with following structure especially: also comprise mouse key cover, described central processing unit connects mouse key cover.
Embodiment 6:
The present embodiment is at the enterprising one-step optimization in the basis of above-mentioned any embodiment, further, to better implement the present invention, being convenient to central processing unit can powered operation, as shown in Figure 1, be provided with following structure especially: also comprise feed circuit, described feed circuit connect central processing unit.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls within protection scope of the present invention.
Claims (6)
1. one kind adopt super low-power consumption Model Design for liquid weighing sensor-based system, it is characterized in that: primarily of pressure transducer, V/F treatment circuit, solenoid valve, control circuit, central processing unit, communication interface circuit and slave machine, described pressure transducer connects V/F treatment circuit, described V/F treatment circuit connects central processing unit, described central processing unit connection control circuit, described control circuit connected electromagnetic valve, described from machine connecting communication interface circuit, described communication interface circuit connects central processing unit;
Wherein, pressure transducer, is placed in liquid internal, liquid effects pressure is thereon converted to analog voltage signal and exports;
V/F treatment circuit, the analog voltage signal sent by pressure transducer converts digital voltage signal to;
Central processing unit, completes the overall treatment of each road signal;
Control circuit, the steering order that central processing unit sends is converted to the electric signal that can perform for solenoid valve through it;
Solenoid valve, for carrying out the liquid level regulable control of liquid;
Communication interface circuit, for central processing unit and from the connection communication between machine;
From machine, can complete the various optimum configurations to central processing unit, operational order the upper management function such as to assign.
2. according to claim 1 a kind of adopt super low-power consumption Model Design for liquid weighing sensor-based system, it is characterized in that: also comprise liquid crystal drive interface and liquid crystal display, described central processing unit connects liquid crystal drive interface, described liquid crystal drive interface connecting fluid crystal display.
3. according to claim 2 a kind of adopt super low-power consumption Model Design for liquid weighing sensor-based system, it is characterized in that: described liquid crystal display is LED liquid crystal display.
4. according to claim 1 a kind of adopt super low-power consumption Model Design for liquid weighing sensor-based system, it is characterized in that: also comprise audible-visual annunciator, described audible-visual annunciator connects central processing unit.
5. according to claim 1 a kind of adopt super low-power consumption Model Design for liquid weighing sensor-based system, it is characterized in that: also comprise mouse key cover, described central processing unit connects mouse key cover.
6. a kind of according to any one of claim 1-5 adopt super low-power consumption Model Design for liquid weighing sensor-based system, it is characterized in that: also comprise feed circuit, described feed circuit connect central processing unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510493039.6A CN105043515A (en) | 2015-08-12 | 2015-08-12 | Liquid weighing sensor system designed by adopting ultra-low power dissipation module |
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| CN201510493039.6A CN105043515A (en) | 2015-08-12 | 2015-08-12 | Liquid weighing sensor system designed by adopting ultra-low power dissipation module |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089353A (en) * | 1993-12-31 | 1994-07-13 | 西安交通大学 | Intelligent weighing instrument for liquid tank |
| US20060266111A1 (en) * | 2005-05-25 | 2006-11-30 | Bae Systems Aircraft Controls Inc. | Liquid measurement system having a plurality of differential pressure probes |
| CN201965470U (en) * | 2010-12-19 | 2011-09-07 | 西安迅腾科技有限责任公司 | Weighting type long-distance online liquid level measurement and control system |
| CN202533144U (en) * | 2012-05-11 | 2012-11-14 | 四川优的科技有限公司 | Gravimetric liquid level meter system based on mixed signal processor (MSP) 430 single chip microcomputer (SCM) |
| CN103389138A (en) * | 2012-05-11 | 2013-11-13 | 四川优的科技有限公司 | Weighing type liquid level meter system based on MSP430 (Mixed Signal Processor 430) single chip microcomputer |
| CN103848124A (en) * | 2012-12-06 | 2014-06-11 | 内蒙古伊利实业集团股份有限公司 | Volume fixing tank for cold drinks and volume fixing method |
-
2015
- 2015-08-12 CN CN201510493039.6A patent/CN105043515A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089353A (en) * | 1993-12-31 | 1994-07-13 | 西安交通大学 | Intelligent weighing instrument for liquid tank |
| US20060266111A1 (en) * | 2005-05-25 | 2006-11-30 | Bae Systems Aircraft Controls Inc. | Liquid measurement system having a plurality of differential pressure probes |
| CN201965470U (en) * | 2010-12-19 | 2011-09-07 | 西安迅腾科技有限责任公司 | Weighting type long-distance online liquid level measurement and control system |
| CN202533144U (en) * | 2012-05-11 | 2012-11-14 | 四川优的科技有限公司 | Gravimetric liquid level meter system based on mixed signal processor (MSP) 430 single chip microcomputer (SCM) |
| CN103389138A (en) * | 2012-05-11 | 2013-11-13 | 四川优的科技有限公司 | Weighing type liquid level meter system based on MSP430 (Mixed Signal Processor 430) single chip microcomputer |
| CN103848124A (en) * | 2012-12-06 | 2014-06-11 | 内蒙古伊利实业集团股份有限公司 | Volume fixing tank for cold drinks and volume fixing method |
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