Method and device for testing long object

FIELD: construction.

SUBSTANCE: method comprises using the pipeline to be tested as a wave guide and mounting emitter in the balk of the electric insulation of the pipeline. The aerial of the emitter is connected with the aerial of the writer through the pipeline. The address emitter comprises rectifier, memory, threshold element, and decoder. The aerial is connected to the input of the rectifier whose output is connected with the bus for power supply to the emitter through the carrier and threshold element. The power supply bus of the decoder is connected with the input of the threshold element. The signal input is connected with the aerial, and signal output is connected with the input of the emitter.

EFFECT: enhanced reliability of testing.

3 cl, 3 dwg

 

The invention relates to the field of alarm systems, more specifically to techniques for condition monitoring of extended engineering systems and facilities, and can be used, for example, to control the quality of construction and condition of pipelines.

The known method of control of engineering systems (extended objects) on which the entire length of the system, set the address detectors connected through the communication line to the unit receiving and processing information (see, e.g., Addressable analog fire alarm system and management Unitronic" CJSC "UNITEST" WWW.unitest.ru).

The known method is implemented as follows: food address detectors operate from an auxiliary power source or supply a constant or slowly varying voltage on the communication line, and for polling address of the detectors send the reader unit survey and control) coded signals survey detectors, accept and designerour response coded signals of the detectors. This ensures that the control state of the object, as well as breakage and short circuit line connection and removal of the address of the detector.

The disadvantages of this method, according to the applicant, is necessary to lay two-wire line over the entire length of the extended object, and the inability to control the quality of the implementation of the Oia (construction) of the object itself. The last disadvantage is due to the fact that the detectors are installed on the finished object, upon completion of its construction.

It is also known the use of radio frequency identification (Radio Frequency Identification)on which the detector antenna is not required for communication with the reader unit receiving and processing information) special wire line (see, e.g., file://AA:Readers Proximity.htm 30.03.05 Fig.1). More options for the possible functional performance of the detector and reader information he presented, e.g., in the journal "security" No. 2 (56) April-may 2004, p.72-75, Fig. 1 and 2.

The disadvantage of this method is the limited range that does not allow you to use it for remote control of extended objects. In addition, this solution does not allow you to inspect the quality of construction of the extended object, and use it if the extended object (e.g., pipelines) buried under the ground, because the working distance from the detector to the reader does not exceed 14 inches. In fact, this technical solution is a way of checking the detector and entered in advance in the information, i.e., a method of its own identity, as indicated in the above source is e information.

The aim of the invention is to provide a method and device for monitoring an object extended with the possibility of quality control implementation (construction) of the object itself. With this purpose it is proposed to control how long the object on which the length of the extended object set address detectors with the ability to save code before and after installation on the object reader (block survey and control) send coded signals survey detectors, accept and designerour response coded signals of the switches, use the address detectors and at least one control unit and survey with antennas that electromagnetic associated with an extended object, made of conductive material, the length of the object and the detectors cover the electrically insulating material in the detectors of the energy signals of the survey accumulate to a predetermined level, after which use to power the detectors. To implement the method in the address detector containing block reprogrammable non-volatile memory with an output driver, the output of which is connected to the antenna, which is connected to the input of the rectifier, put the drive and the threshold element, the output of the rectifier is connected to the input buffer, the output of which through the threshold element connected to the bus pit is of unit reprogrammable non-volatile memory with an output driver. In addition, to extend the functionality of the detector, it may be a decoder, power bus which is connected to the output of the threshold element, a signal input connected to the antenna, and the output - allows the input of the detector.

The invention is illustrated by drawings. Figure 1 shows an example of execution of the object element for the implementation of the proposed method, figure 2 is a functional diagram illustrating the proposed method, figure 3 - functional diagram of the detector in accordance with the invention.

In the drawings denote: 1 - metal pipe, 2 - insulating layer applied on the factory pipe 1, the detector 3, the antenna 4 of the detector 3, the pipe 5 reader 6 with the antenna 7. Position 8 is indicated a pipe coupling 1 in the manufacture of the pipe 5, and POS. 9 is applied to the joints 8 insulation. In the block diagram of the detector 3 is represented by block 10 reprogrammable non-volatile memory, the output driver 11, a rectifier 12, a memory 13, a threshold element 14, a decoder 15.

The proposed method is implemented as follows.

On the factory pipe on a metal tube 1 is applied insulating layer 2, the thickness of which place the detector 3 with the antenna 4 with providing electromagnetic coupling of the antenna 4 of the detector 3 with the metal pipe 1. the detector 3 (more precisely, in block 10 reprogrammable non-volatile memory) write code that contains all the necessary information about the product, the manufacturer, date of manufacture, composition of the metal and so on, exactly as it is done in the known device (Proximity Readers). Then from pipe 1 directly on the track produce the pipe 5 by means of welding joints 8, which provides, in addition to the requirement for operation of the leak, also the required galvanic connection throughout the pipeline 5. However, in accordance with the known above-mentioned technology has the ability to capture additional information (for example, the method of welding joint, date of work, code welder and so on) in the detector 3. After the welding of each joint 8 of the pipeline 5 joint 8 are isolated by insulation 10, so that ultimately the finished pipeline 5 is a single conductive pipe, covered with insulation, i.e. the waveguide. This provides electromagnetic coupling of the reader with 6 detectors 3, placed along the entire length of the pipeline 5.

Proposed method of control extended object implemented as follows. When you enable reader 6 its antenna 7 excites in the isolated pipeline 5 electromagnetic wave energy which is received by the antenna 4 of the detector 3 and to the input of the rectifier 12. P and that for some time there is an accumulation of electric energy in the storage device 13 to the level of the triggering threshold element 14. It should be noted that during the accumulation of energy (charge storage 13 to the level of the triggering threshold element 14) the signal from the reader 6 may be unmodulated. When the threshold element 14 is triggered, the voltage supplied to the power bus blocks 10 and 11 and the decoder 15 (if available, in accordance with section 3 of the proposed claims). If the decoder 15 missing (p. 2 formulas), the imaging unit 11 outputs to the antenna 4 is stored in the unit 10 immediately after operation of the threshold element 14, i.e. in a reader 6 as the achievement threshold to the threshold element 14 in the detectors 3, each detector 3 outputs recorded in his unit 10 the information coming through the pipeline 5 through the antenna 7 in a reader 6. If provided, the decoder 15, the information shall be issued only after receipt of the device has also the appropriate code from the reader 6. This signal is picked up by the antenna 7 of the reader 6 and processed in the microprocessor, in the same way as described in the file://AA:Readers Proximity.htm 30.03/05 1. If regrading and placement of pipe which is not installed in the thickness of the insulation detector 3 or the disparity between the response code detector 3 expected will be immediately on the reader 6 is obtained the corresponding error signal or the expected response not at all Bud is t obtained. In addition, there is the possibility of control of the work at any time after construction of the pipeline 5 and in the course of its operation. Accidental rupture of the pipeline 5 is interrupted communication reader 6 with all detectors 3, placed on the pipe 1 outside the place insulation, broken, and in violation of the insulation tube 1 and the penetration to the metal soil water, and in the case of unauthorized access to the pipeline 5 (for example, when the pipeline tie-in to steal the pumped output) connection of the switches 3, behind the place insulation, also disturbed that allows you to remotely determine the location of the accident or damage. It should be noted that without the changes being proposed technical solutions you can use two reader 6 located on opposite ends of the controlled pipeline 5 (object), which increases the accuracy and reliability of the control.

Considering the fact that posted in the thickness of the insulation passive detector 3, i.e., not incorporating a power source, has a virtually unlimited service life, allowing you complete control over the entire real life object (pipeline 5), and insulated metal pipe is a waveguide with low loss, offer technical is some solution provides control lengthy responsible pipelines at minimal cost during all time of operation. In addition, since the re-grading of the pipes is possible only if the construction of the pipeline, increased opportunities to test the grade of the pipe at the end of the entire cycle of construction, in particular after the pipeline trench is already covered with soil.

1. The control method of the extended object, in which the length of the extended object set address detectors with the ability to save code before and after installation on the object, the reader sends coded signals survey detectors, accept and designerour response coded signals of the detectors, wherein using the address detectors and at least one reader with antennas that electromagnetic associated with an extended object, made of conductive material, the length of the object and the detectors cover the electrically insulating material in the detectors of the energy signals of the survey accumulate to a predetermined level, after which is used to power the detectors.

2. The address detector for implementing the method according to claim 1, containing a block of programmable non-volatile memory with an output driver, the output of which is connected to the antenna, which is connected to the input of the rectifier, characterized in that it introduced the drive and the threshold element, the output of the rectifier is connected to I the control of the drive the output of which through the threshold element connected to the bus power supply reprogrammable non-volatile memory with an output driver.

3. The address detector according to claim 2, characterized in that it introduced the decoder, power bus which is connected to the output of the threshold element, a signal input connected to the antenna, and the output - allows the input of the detector.



 

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SUBSTANCE: in accordance to method, balance registration of linear portion of oil pipe main oil is performed, and also standard data of parameter characterizing state of linear portion of oil pipe main are composed and recorded. Information is gathered about current data of this parameter and information is sent to analytical controlling center. Current data are compared to standard data, on basis of comparison results coordinates of loss point or unsanctioned oil drain point are detected at linear portion of oil pipe main. To given point emergency equipment or police detachment are sent for liquidating damage or illegal connection at linear portion of oil pipe main. Oil at linear portion of oil pipe main is heated up to given temperature and as parameter, characterizing state of linear portion of oil pipe main, temperature field of heating of linear portion of oil pipe main is utilized. In case of change of oil balance current data about temperature field of linear portion of oil pipe main are taken by equipment mounted at satellites of stationary global network and made on basis of thermal vision cameras. Coordinates of area adjacent to linear portion of oil pipe main with temperature field of heating different from standard one, are taken as coordinates of loss point.

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7 cl, 2 dwg

FIELD: checking nuclear power station equipment for leak tightness.

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EFFECT: enhanced speed of system response and reliability, enhanced safety of nuclear power station in operation.

6 cl, 5 dwg

FIELD: pipeline transportation; transportation of oil and oil processing products by pipelines.

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4 dwg

FIELD: non-destructive testing.

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EFFECT: enhanced reliability.

8 dwg

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2 cl, 1 tbl

FIELD: pipeline transport.

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EFFECT: enhances precision and reliability of testing.

7 cl, 3 dwg

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2 dwg

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EFFECT: enhanced reliability.

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5 dwg

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2 cl, 1 dwg

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9 cl, 3 dwg

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3 cl, 1 dwg

FIELD: measuring engineering.

SUBSTANCE: device comprises transmitter, two receivers, transmitting aerial, two receiving aerials, phase detector, output voltmeter, synchronizer, time delay unit, switches, oscillator, mixer, amplifier of intermediate frequency, five multipliers, narrow-band filter, amplitude limiter, comparator, and indicator. The method includes comparing the measured value of the phase shift with the reference value of the constant voltage proportional to the measured phase shift, shifting the phase by 90°, multiplying the initial and shifted constant voltage twice, multiplying initial and shifted by 90° constant voltage of the second power with the use of scaling factor KM = 6, subtracting the voltage obtained from the initial voltage of the fourth power, and summing the voltage obtained and constant voltage of fourth power shifted in phase by 90°.

EFFECT: enhanced sensibility.

2 cl, 1 dwg

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EFFECT: enhanced change of radio telemetry and command information between remotely-controlled flying vehicle and ground control point.

5 dwg

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