CN1151316C - Multiple position signal detection and storage device for pipeline cathode protection - Google Patents
Multiple position signal detection and storage device for pipeline cathode protection Download PDFInfo
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- CN1151316C CN1151316C CNB011346604A CN01134660A CN1151316C CN 1151316 C CN1151316 C CN 1151316C CN B011346604 A CNB011346604 A CN B011346604A CN 01134660 A CN01134660 A CN 01134660A CN 1151316 C CN1151316 C CN 1151316C
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Abstract
The present invention relates to a multiple-position signal detection and storage device for pipeline cathode protection, which is composed of more than one signal input electrode, an automatic transfer switch, an A/D conversion circuit, a CPU central processing unit, a storage and clock module circuit and a monobus interface which are connected by conductors in sequence. The device is used for detecting and storing the data of electrode activity values of multiple-position signals of a pipeline cathode. During actual use, the CPU central processing unit (4) stores program executing commands inputted by the monobus interface (6) and the storage and clock module circuit (5) and periodically sends program executing commands to the automatic transfer switch (2) which switches the electrodes of the signal input electrode (1); thus, input signals of resistance, or electric currents, voltage, etc. are selectively measured, converted and amplified into data measurement signals by the A/D conversion circuit (3); the data measurement signals are inputted to the CPU central processing unit (4) and stored by classification, or the data measurement signals are outputted by the storage and clock module circuit (5) and the monobus interface (6).
Description
Technical field
The invention belongs to the measuring apparatus class, relate in particular to the measuring apparatus class of corrosive pipeline and galvanic protection.
Background technology
At present, the detection technique of known corrosive pipeline and galvanic protection has and adopts default electrode, and the electrode activity value method with the volt ohm-milliammeter point-to-point measurement adopts additional power source to carry out the coulometry of voltage or current measurement in addition.But these all need manually to make a difficult journey point-to-point measurement, gather, to determine the situation of corrosive pipeline and galvanic protection, therefore time-consuming.Moreover its take off data is also accurate inadequately, thereby many difficulties and inconvenience have all occurred for maintenance, maintenance, the replacing of pipe cathode; Sometimes also can affect adversely opportunity, cause pipe leakage, break and environmental pollution etc., influence industrial production and people's lives directly or indirectly.
Summary of the invention
The purpose of this invention is to provide a kind of multiple position signal detection and storage device for pipeline cathode protection, optional majority position electric weight carries out detection signal, and storage, is convenient to the situation that people in time grasp corrosive pipeline and galvanic protection.
The object of the present invention is achieved like this: a kind of multiple position signal detection and storage device for pipeline cathode protection, and it comprises:
1, the more than one signal input utmost point is used for the measurement of pipe cathode electrode activity value.
2, hospital switch is used for the automatic conversion that pipe cathode electrode activity value multichannel is selected measurement.
3, the A/D analog to digital conversion circuit is used for acquired signal is imported the signal of utmost point input, amplifies and is converted to numerary signal.
4, cpu central processing unit is used for accepting the input execution of program instructions, and regularly starts the A/D analog to digital conversion circuit, gathers the electrode activity value signal of pipe cathode input, and will be converted to the numerary signal storage, or is input to storage and clock module circuit.
5, storage and clock module circuit are used for regularly triggering cpu central processing unit, and data storage and output acquired signal are provided.
6, single bus interface is used for the output of acquired signal, or accepts execution of program instructions.
The described more than one signal input utmost point, hospital switch, A/D analog to digital conversion circuit, cpu central processing unit, storage and clock module circuit, single bus interface, be linked in sequence by conductor, be used to detect, store the electrode activity Value Data of pipe cathode multibit signal.
Because the present invention has adopted above technical scheme, by hospital switch, can select multiple signals such as measuring resistance, electric current, voltage.Thereby provide data, analysis and summary accurate, science for correctly grasping corrosive pipeline and galvanic protection, it all has very special meaning.Thereby have simple structure, and measurement signal is various, and is easy to operate, and data are accurate, many-sided characteristics such as storage in time.
Description of drawings
Fig. 1 is a kind of multiple position signal detection and storage device for pipeline cathode protection theory structure synoptic diagram of the present invention.
Among the figure: 1, the more than one signal input utmost point, 2, hospital switch, 3, the A/D analog to digital conversion circuit, 4, cpu central processing unit, 5, storage and clock module circuit, 6, single bus interface.
Embodiment
Below in conjunction with accompanying drawing enforcement of the present invention is explained as follows:
In Fig. 1, the more than one signal input utmost point (1), hospital switch (2), A/D analog to digital conversion circuit (3), cpu central processing unit (4), storage and clock module circuit (5), single bus interface (6) is linked in sequence by conductor.Wherein, the more than one signal input utmost point (1) is provided with more than one (as two or three electrodes) input electrode, can accept resistance or a plurality of input signals such as electric current, voltage respectively.Hospital switch (2) can be according to the execution of program instructions of cpu central processing unit (4), the electrode of the automatic switching signal input utmost point, thus be used for measuring resistance selectively, or a plurality of input signals such as electric current, voltage.A/D analog to digital conversion circuit (3) is changed the measurement signal of the more than one signal input utmost point (1) input and is enlarged into the DATA REASONING signal, exports cpu central processing unit (4) to.Cpu central processing unit (4) is classified the measurement data signals of A/D analog to digital conversion circuit (3) input respectively, is handled and store; The measurement data signals of maybe will import, storing exports signal pickup assembly to by storage and clock module circuit (5) and single bus interface (6).Simultaneously, cpu central processing unit (4) is also stored the execution of program instructions of single bus interface (6), storage and clock module circuit (5) input, and regularly sends the measurement execution of program instructions to the more than one signal input utmost point (1).Storage and clock module circuit (5) are used for cpu central processing unit (4) triggering regularly and carry out the collection of take off data.Single bus interface (6) is used to export the take off data of collection, or the input execution of program instructions.
In the actual use of the present invention, cpu central processing unit (4) is stored the execution of program instructions of single bus interface (6), storage and clock module circuit (5) input, and regularly sends the measurement execution of program instructions to the more than one signal input utmost point (1).Hospital switch (2) is accepted cpu central processing unit (4) execution of program instructions, the electrode of the automatic switching signal input utmost point, thereby be used for measuring resistance selectively, or a plurality of input signals such as electric current, voltage, conversion and amplification through A/D analog to digital conversion circuit (3) transfer the DATA REASONING signal to, export cpu central processing unit (4) to and classify, store; Or by the data signal of storage and clock module circuit (5) and single bus interface (6) output collection.
Claims (1)
1. multiple position signal detection and storage device for pipeline cathode protection, it comprises:
1) the more than one signal input utmost point is used for the input of pipe cathode resistance, electric current and voltage signal;
2) hospital switch is used for the automatic conversion that pipe cathode resistance, electric current and voltage signal multichannel measurement are selected;
3) A/D analog to digital conversion circuit is used for the signal of acquired signal input utmost point input, and amplifies and be converted to numerary signal;
4) cpu central processing unit is used for accepting the input execution of program instructions, and regularly starts the A/D analog to digital conversion circuit, gathers resistance, electric current and the voltage signal of pipe cathode input, and is converted into the numerary signal storage or is input to storage and clock module circuit;
5) storage and clock module circuit are used for regularly triggering cpu central processing unit, and data storage and output acquired signal are provided;
6) single bus interface is used for the output of acquired signal, or accepts execution of program instructions;
The described more than one signal input utmost point, hospital switch, A/D analog to digital conversion circuit, cpu central processing unit, storage and clock module circuit, single bus interface, be linked in sequence by conductor, be used to detect, store resistance, electric current and the voltage data of pipe cathode multibit signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011346604A CN1151316C (en) | 2001-11-09 | 2001-11-09 | Multiple position signal detection and storage device for pipeline cathode protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011346604A CN1151316C (en) | 2001-11-09 | 2001-11-09 | Multiple position signal detection and storage device for pipeline cathode protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1352322A CN1352322A (en) | 2002-06-05 |
| CN1151316C true CN1151316C (en) | 2004-05-26 |
Family
ID=4672649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011346604A Expired - Fee Related CN1151316C (en) | 2001-11-09 | 2001-11-09 | Multiple position signal detection and storage device for pipeline cathode protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1151316C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294412C (en) * | 2002-06-26 | 2007-01-10 | 谢自力 | Round inspection monitoring system and method for cathode protection signal of long conveying pipeline |
| CN102199774A (en) * | 2010-03-24 | 2011-09-28 | 上海飞奥燃气设备有限公司 | Data collecting apparatus, monitoring management system and monitoring method for cathodic protection |
| CN102374664B (en) * | 2010-08-20 | 2014-06-25 | 宁波帅康热水器有限公司 | Water heater with anode rod consumption alarm indication function |
| CN102677068B (en) * | 2011-03-16 | 2014-11-19 | 中国石油天然气股份有限公司 | Buried pipeline cathodic protection outage potential detection device |
| CN102392256A (en) * | 2011-12-26 | 2012-03-28 | 贵州大学 | Wind/solar/electric complementary network anticorrosion system for buried steel pipelines |
| CN107723713A (en) * | 2017-12-08 | 2018-02-23 | 江苏飞视文化发展有限公司 | The system of potentiostat in a kind of cathodic protection system of monitoring in real time |
| CN110819995B (en) * | 2018-08-09 | 2022-05-31 | 西安电子科技大学 | Pipeline cathodic protection potential test system of multichannel circulation test |
-
2001
- 2001-11-09 CN CNB011346604A patent/CN1151316C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1352322A (en) | 2002-06-05 |
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