CN2779356Y - Liquid level monitoring and recording instrument - Google Patents
Liquid level monitoring and recording instrument Download PDFInfo
- Publication number
- CN2779356Y CN2779356Y CNU2004200579995U CN200420057999U CN2779356Y CN 2779356 Y CN2779356 Y CN 2779356Y CN U2004200579995 U CNU2004200579995 U CN U2004200579995U CN 200420057999 U CN200420057999 U CN 200420057999U CN 2779356 Y CN2779356 Y CN 2779356Y
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- CN
- China
- Prior art keywords
- liquid level
- microprocessor
- level monitoring
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model relates to a liquid level monitoring and recording instrument which comprises a microprocessor (10), a driving circuit (1), a stepping motor (2), an electrically conductive metal monitoring wire (6), a wire winding roller (7) and a liquid level monitoring head (5). The utility model is characterized in that the utility model adopts two IC comparison circuit devices (8, 9); a rising state, a descending state and an unchanged state of the liquid level are actually monitored by the two IC comparison circuit devices (8, 9) and by the interruption function of the microprocessor (10). The utility model can automatically monitor the variation of the liquid level and automatically track and record the variation value of the liquid level and the synchronous variation time; monitored datum information is stored in a storing card by the microprocessor (10).
Description
Technical field the utility model belongs to the device of monitoring and the variation of record dynamic liquid level, relates to the level monitoring registering instrument of embedded system.
Background technology is present, and the method for level gauging is a lot, still adopts manual method at the method majority of the present level gauging of China, and precision is low, and reaction is slow; Certainly, in the level gauging technical field, many advanced practical level gauging instruments also occurred: the digital video frequence water level meter of number of patent application 01107329.2 is by video input unit, image pick-up card, microprocessor and display screen are formed by connecting, this digital video frequence water level meter though measuring accuracy is higher, and can intuitively show on-the-spot water level coloured image, but it is had relatively high expectations to operating personnel's culture scientific and technological quality, and cost is also expensive.The precision digital limnimeter of number of patent application 88200109.4 is made up of instrument and sensor two parts, and instrument is made up of input circuit, control circuit and counting circuit; The critical piece of sensor is the transmission nut of the stepper motor screw mandrel that directly drives and the chaining pin of ining succession, and the nut band chaining pin and moved up and down.Though this limnimeter measuring accuracy height, it is because its chaining pin directly connects transmission nut, and chaining pin moves up and down and is subjected to the restriction of screw mandrel length, and the processing length of screw mandrel can not be very long, and its level measuring amplitude is restricted so.
Summary of the invention is in view of above-mentioned condition, and the utility model provides a kind of level monitoring precision height, and the amplitude of monitoring tracking liquid level change is big automatically, and simple in structure, and cost is not high.The utility model is to be the liquid level monitor of core with the embedded system, it is made up of microprocessor (10), driving circuit (1), stepper motor (2), conducting metal survey line (6), spiral cylinder (7), level monitoring head (5), it is characterized in that having adopted two IC comparator circuits (8,9), by the rising of the interrupt function actual measurement liquid level of two IC comparator circuits (8,9) and microprocessor (10), decline, constant three kinds of states.This level monitoring registering instrument can be monitored liquid level change automatically, from motion tracking and the time and date when writing down liquid level change value and liquid level change each time, by microprocessor (10) this information data is deposited in the storage card (12).It need not artificial guard, and the user can regularly or at any time fetch storage card, inserts and draws the liquid level dynamic changing curve in the computing machine.
Description of drawings Fig. 1 is the utility model circuit structure and the floor map that is connected.
Fig. 2 is the utility model level monitoring head synoptic diagram.
Embodiment the utility model is to be equipped with two input interfaces and two output interfaces on core, the microprocessor (10) with microprocessor (10), import 2 interfaces for inserting time of day circuit (11), import 1 interface and insert relatively comparer (8,9) of two IC.Output 2 connects storage card (12), exporting 1 interface and driving circuit (1) joins, the output signal that driving circuit (1) is different according to microprocessor, the forward or reverse of drive stepping motor (2) or static, stepper motor (2) rotating shaft links to each other for the gear interlock with spiral cylinder (7).Spiral cylinder (7) is connected with elongated screw rod (4) also gear.Be equipped with a traveling nut (3), the smooth row of conducting metal survey line (6) on the elongated screw rod (4) on spiral cylinder (7), one of conductive metal wire connects two IC comparers (8,9), traveling nut (3) endoporus on the elongated screw rod (4) is passed in the other end, with the joint (T of level monitoring head (5)
1) join.Level monitoring head (5) is the parts that work alone, and external form can be made column type or square column type, and monitor head (5) upper end is the joint (T of conductive metal wire
1), the lower end is the probe (T that two conductive metal wires are made
2, T
3), the bottom head of two probes is at same surface level, probe (T
2) be longer than probe (T
3), difference in level is determined probe (T by measurement requirement, measuring accuracy size between them
2) by resistance (R) and (T
1) link to each other probe (T
3) and (T
1) directly link to each other, monitor head (5) exposes (T by the insulating material sealing
1), (T
2) and (T
3).
Level monitoring registering instrument principle of work is:
During original state, monitor head probe (T
2) the contact water surface, and monitor head (5) probe (T
3) do not contact the water surface, at this moment, be in monitored state, A, the B point current potential on the comparator circuit (8,9) is high.
When water level changes, water level goes up, monitor head (5) probe (T
3) the contact water surface, the A point current potential in the IC comparator circuit (9) is by high step-down, and the interruption 1 of microprocessor (10) receives low-potential signal, send instruction, just change by driving circuit (1) drive stepping motor (2) by defeated 1, drive monitor head (5) and promote, to monitor head probe (T
3) leave the water surface, monitor head probe (T
2) when contacting the water surface, comparator circuit (9) is gone up A point current potential and uprised by low, microprocessor (10) interrupts 1 receives signal, sends instruction, and stepper motor stops operating, and recovers stationary state.
When water level changes, decline of water table, monitor head probe (T
2) leaving the water surface, the B point current potential in the IC comparator circuit (8) is by high step-down, and the interruption 2 of microprocessor (10) receives low-potential signal, send instruction by exporting 1, by driving circuit (1) drive stepping motor (2) counter-rotating, drive monitor head (5) and descend, to monitor head probe T
2The contact water surface, comparator circuit (8) are gone up B point current potential and are uprised by low, and microprocessor (10) interrupts 2 receives signal, sends instruction, and stepper motor stops operating, and recovers stationary state.
Stepper motor (2) rotates the commentaries on classics of output apart from rotating through gear driven spiral cylinder (7), drives the vertical movement of monitor head (5) by the conducting metal survey line (6) on the spiral cylinder (7), thereby realizes probe (T
2, T
3) lifting measure SEA LEVEL VARIATION, reach the purpose of following the tracks of water level.Because the conducting metal survey line (6) on the spiral cylinder (7) passes the endoporus of the traveling nut (3) on the elongated screw rod (4), so when spool (7) rotates, conducting metal survey line (6) is also along the axis direction translation, finish the task of automatic smooth winding displacement on spool thus, and guaranteed the precision of measuring.
According to the pulse number of output order drive stepping motor under the microprocessor (10), and the girth of the step angle of stepper motor (2) and spiral cylinder (7) calculates the probe (T on the monitor head (5)
2, T
3) quantity that rises (falling) is the liquid level change value.The data of year, month, day, hour, min when the time of day circuit (11) that while microprocessor (10) will be accepted is synchronously imported, second deposit storage card in together with level value.
Claims (4)
1, a kind of level monitoring registering instrument, be by microprocessor (10), driving circuit (1), stepper motor (2), conducting metal survey line (6), spiral cylinder (7), level monitoring head (5) is formed, it is characterized in that having adopted two IC comparator circuits (8,9), by rising, decline, the constant three kind states of two IC comparator circuits (8,9) with the interrupt function actual measurement liquid level of microprocessor (10).
2, by the described level monitoring registering instrument of claim 1, it is characterized in that microprocessor (10) link information storage card (12).
3,, it is characterized in that adopting elongated screw rod (a 4) device to be implemented in spiral cylinder (7) and go up the translation of implementation axis direction, stay aligned conducting metal survey line (6) by claim 1,2 described level monitoring registering instruments.
4, by claim 1,2 described level monitoring registering instruments, it is characterized in that level monitoring head (5) is by a resistance and two probe (T
2, T
3) form two probe (T
2, T
3) the bottom head not at same surface level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200579995U CN2779356Y (en) | 2004-12-24 | 2004-12-24 | Liquid level monitoring and recording instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200579995U CN2779356Y (en) | 2004-12-24 | 2004-12-24 | Liquid level monitoring and recording instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2779356Y true CN2779356Y (en) | 2006-05-10 |
Family
ID=36753443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200579995U Expired - Fee Related CN2779356Y (en) | 2004-12-24 | 2004-12-24 | Liquid level monitoring and recording instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2779356Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839750A (en) * | 2010-04-09 | 2010-09-22 | 温京辉 | Numerically controlled water level |
| CN102914343A (en) * | 2012-09-28 | 2013-02-06 | 中国科学院合肥物质科学研究院 | Non-contact type single-point liquid metal liquid level measurement device |
| CN104655232A (en) * | 2015-03-16 | 2015-05-27 | 山东创通信息技术股份有限公司 | Combined type automatic caution alarming measuring instrument for deep well water level |
| CN104964726A (en) * | 2015-06-12 | 2015-10-07 | 河海大学 | Vacuum preloading underground water level measurement device and method |
| CN107084772A (en) * | 2017-03-28 | 2017-08-22 | 中华人民共和国高栏出入境检验检疫局 | Ballast water for ship height-gauge and measuring method |
| CN112922585A (en) * | 2021-02-26 | 2021-06-08 | 华东交通大学理工学院 | Automatic monitoring method for liquid level height of drainage well in subway construction |
-
2004
- 2004-12-24 CN CNU2004200579995U patent/CN2779356Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839750A (en) * | 2010-04-09 | 2010-09-22 | 温京辉 | Numerically controlled water level |
| CN102914343A (en) * | 2012-09-28 | 2013-02-06 | 中国科学院合肥物质科学研究院 | Non-contact type single-point liquid metal liquid level measurement device |
| CN102914343B (en) * | 2012-09-28 | 2014-08-27 | 中国科学院合肥物质科学研究院 | Non-contact type single-point liquid metal liquid level measurement device |
| CN104655232A (en) * | 2015-03-16 | 2015-05-27 | 山东创通信息技术股份有限公司 | Combined type automatic caution alarming measuring instrument for deep well water level |
| CN104964726A (en) * | 2015-06-12 | 2015-10-07 | 河海大学 | Vacuum preloading underground water level measurement device and method |
| CN104964726B (en) * | 2015-06-12 | 2018-04-27 | 河海大学 | A kind of vacuum preloading underground water level measurement device and method |
| CN107084772A (en) * | 2017-03-28 | 2017-08-22 | 中华人民共和国高栏出入境检验检疫局 | Ballast water for ship height-gauge and measuring method |
| CN112922585A (en) * | 2021-02-26 | 2021-06-08 | 华东交通大学理工学院 | Automatic monitoring method for liquid level height of drainage well in subway construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060510 Termination date: 20101224 |