CN203812392U - System for remote signal transmission and power supply of long-distance oil transportation and gas transportation line instrument - Google Patents
System for remote signal transmission and power supply of long-distance oil transportation and gas transportation line instrument Download PDFInfo
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- CN203812392U CN203812392U CN201420164599.8U CN201420164599U CN203812392U CN 203812392 U CN203812392 U CN 203812392U CN 201420164599 U CN201420164599 U CN 201420164599U CN 203812392 U CN203812392 U CN 203812392U
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Abstract
The utility model discloses a system for remote signal transmission and power supply of a long-distance oil transportation and gas transportation line instrument. The system comprises a power generation module, a power supply control module, a power accumulation module, an instrument power supply conversion module, a signal conversion wireless transmission module and a monitoring main engine module. The monitoring main engine module researched based on an ARM (Advanced RISC Machines) inner core is used for converting an instrument analog quantity signal into a digital signal; the conversion precision is high, the bit error rate is low and data transmission is stable; plug-and-play of an SIM (Subscriber Identity Module) card is supported; a whole remote transmission system is controlled and protected and damage conditions of unit modules are subjected to early alarming and alarming; the power supply control module supplies 24-V direct current and a high-efficiency and ultra-small-size single chip microcomputer digital DC-DC (Direct Current) boost converter is adopted so that impacts on the instrument by over-voltage and under-voltage and surge current can be effectively resisted; the power consumption of a conversion element is reduced and the power supply stability is guaranteed; the power accumulation module adopts a long-service-life and high-capacity lithium iron phosphate battery.
Description
Technical field
The utility model belongs to On The Oil And Gas Transportation circuit technical field, relates in particular to a kind of for the long system apart from the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply.
Background technology
Conventionally adopt optical fiber mode to transmit long apart from the sensor signals such as the temperature on On The Oil And Gas Transportation circuit, pressure, flow 95% both at home and abroad at present, advantage is steady signal transmission, the bit error rate is low, shortcoming is labor intensive, material resources, financial resources, needing is in addition equipment power-extracting, often will lay supply line simultaneously.In NORTHWEST CHINA area, region is wide, and it is high that environment badly adopts optical fiber mode to expend.
We consider that GPRS covers national 98% area, and signal is good, and transmission is stable, instrument is exported to required low capacity data channel bandwidth and enough use.This technology is also technology newly developed in recent years, and industry a lot of technician suspect to some extent to the stability of the signal that is located in remote areas, dare not use.Through our a large amount of test experiments, except in Kunlun Mountain of Xinjiang district and In Tarim Desert innerland, can find periphery mobile base station signal and enter GPRS network in general area.And GPRS uses large signal to noise ratio (S/N ratio) antenna and frequency range crawl technology, generally, under the state of fixed position, as long as enter GPRS network, will automatically control, can not lose network signal.And petroleum natural gas pipeline many places are in areas such as smooth desert, Gobi desert, field, grassland, platform band signal is stablized always and is better than mountain area, is feasible so use GPRS technology to grow Distance Transmission pipeline meter signal.
Instrument power supply was all to get forceful electric power grid alternating current source transformation nearby to convert the required light current direct supply of instrument in the past, need equally electrical network and wiring to support (being generally power taking nearby), but also many transformation conversion links that forceful electric power dies down electric are the ways that lose more than gain that waste energy.Also there are some research institutions to attempt solar electrical energy generation to be used in telemetry system power supply, but, because the power supply of telemetry system is 12V, and instrument power supply is 24V, researchist is only placed on eye in telemetry system, and no matter the power requirement of instrument is still instrument power supply by wired conventional approach, cannot accomplish to be completely independently that telemetry system and instrument system are completely independently-powered, not need forceful electric power conversion.Even if selecting sun power mode powers, conventionally use hard solar panels, set up the angle of inclination south orientation fixed installation of stent cover to local solar angle defined, because traditional solar panels require high to daylight illumination, the daylight illumination of some strength just can make it normally work, can cause normal charging period short, need cell panel power larger, cost is higher, and installation cost is also higher, in the larger region of dust storm, there is very high requirement on solar-cell panel support intensity and basis, and this also can improve installation cost and labour intensity.
Utility model content
It is a kind of for the long system apart from the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply that the object of the utility model embodiment is to provide, and is intended to solve the powered operation complexity of existing length apart from oil transportation, the teletransmission of gas transmission circuit instrument signal, the problem that cost is high.
The utility model embodiment realizes like this, for a long system apart from the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply, this is used for length and comprises apart from the system of the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply: electricity generation module, energy supply control module, power storage module, instrument power supply conversion module, signal conversion wireless transport module, monitoring host computer module;
Electricity generation module is for providing lasting power supply;
Energy supply control module, is connected with electricity generation module, for sun power input is carried out to overpressure protection, can carry out overcurrent protection to output, and load and accumulator are carried out to monitoring and protecting;
Power storage module, is connected with energy supply control module, is used to energy supply control module and instrument power supply conversion module that standby power supply is provided;
Signal conversion wireless transport module, is connected with energy supply control module, is transformed into digital signal for the analog quantity 4-20mA signal that field instrument is transmitted, and is then modulated into data code flow, by radio wave transmissions in wireless network;
Instrument power supply conversion module, is connected with power storage module, for adopting DC12 to complete the conversion of voltage to DC24 microelectronics boost module.
Monitoring host computer module, is connected with signal conversion wireless transport module by GPRS, for realizing the Long-distance Control of On The Oil And Gas Transportation circuit instrument.
Further, electricity generation module adopts 32 watts, 12V volt output flexible solar hull cell plate.
Further, energy supply control module adopts solar charging/discharging controller.
Further, power storage module adopts the lithium iron phosphate dynamic battery of 30AH, 12V.
Further, signal conversion wireless transport module adopts 12V power supply, and the 2G of China Mobile network SIM card straight cutting is supported in 4 road 4-20mA inputs, carries 7db high-gain aerial.
Further, instrument power supply conversion module adopts the boost module of maximum 0.5A output.
The system apart from the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply for length that the utility model provides, monitoring host computer module based on the research and development of ARM kernel takes instrument analog signals to be converted to digital signal, conversion accuracy is high, the bit error rate is low, data transmission is stable, facilitate software debugging and configuration setting, support SIM card plug and play; Whole remote transmitting system is carried out to control and protection, can carry out early warning and warning to unit module damaged condition; Energy supply control module power supply 24V direct current, adopts high-level efficiency, and microminiature single-chip microcomputer numeral DC-DC boost converter, can effectively resist overvoltage/undervoltage and the impact of surge current to instrument, reduces conversion element power consumption, ensures for electrical stability; Power storage module adopts long-life, high power capacity ferric phosphate lithium cell, and energy content of battery deposit, according to design in overcast and rainy 20 days continuously, is especially applicable to northwest China;
The utility model adopts easy installation, anti-blown sand, non-maintaining, ultra-thin, weak absorption, flexible thin-film solar cell plate, as whole system and instrument load supplying, has improved installation effectiveness efficiently; Energy storage module is abandoned traditional lead-acid accumulator and common lithium battery scheme, adopt long charge and discharge circulation life, high power capacity, volume little, lightweight, blast protection, the ferric phosphate lithium cell of high temperature resistant low-temperature impact, energy content of battery deposit is according to design in overcast and rainy 20 days continuously, can effective guarantee instrument and the sustainable power supply of remote transmission meter and non-maintaining use in the Northwest; Adopt instrument analog signals directly to access monitoring host computer module, compare the original serial data conversion plan that passes through, reduced maximum intermediate link, ensure accurately letter and anti-interference of signal, accelerated processing transmission speed, be conducive to Real-Time Monitoring.
Brief description of the drawings
Fig. 1 is the system architecture schematic diagram apart from the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply for length that the utility model embodiment provides;
In figure: 1, electricity generation module; 2, energy supply control module; 3, power storage module; 4, instrument power supply conversion module; 5, signal conversion wireless transport module; 6, monitoring host computer module.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with drawings and the specific embodiments, application principle of the present utility model is further described.
As shown in Figure 1, mainly being formed by electricity generation module 1, energy supply control module 2, power storage module 3, instrument power supply conversion module 4, signal conversion wireless transport module 5, monitoring host computer module 6 for the long system apart from the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply of the utility model embodiment;
Electricity generation module 1, for lasting power supply is provided, adopts 32 watts, 12V volt output flexible solar hull cell plate;
Energy supply control module 2, is connected with electricity generation module 1, adopts the solar charging/discharging controller of standard, for sun power input is carried out to overpressure protection, can carry out overcurrent protection to output, and load and accumulator are carried out to monitoring and protecting;
Power storage module 3, is connected with energy supply control module 2, adopts the lithium iron phosphate dynamic battery of 30AH, 12V; Be used to energy supply control module 2 and instrument power supply conversion module 4 that standby power supply is provided;
Signal conversion wireless transport module 5, be connected with energy supply control module 2, be transformed into digital signal for the analog quantity 4-20mA signal that field instrument is generally transmitted, then be modulated into data code flow, in wireless network, adopt 12V power supply by radio wave transmissions, 4 road 4-20mA inputs, support the 2G of China Mobile network SIM card straight cutting, carry 7db high-gain aerial;
Instrument power supply conversion module 4, is connected with power storage module 3, and employing DC12 completes the conversion of voltage to DC24 microelectronics boost module, adopts the boost module of maximum 0.5A output;
Monitoring host computer module 6, is connected with signal conversion wireless transport module 5 by GPRS, for realizing the Long-distance Control of On The Oil And Gas Transportation circuit instrument.
In conjunction with structure of the present utility model, the utility model is described further:
Electricity generation module 1: select solar cell as sustainable power supply, adopt 32 watts, 12V volt output flexible solar hull cell plate, can directly stick on pipeline to installing on light face, not only in the time of sight direct projection, there is good generating efficiency, and low light according to and diverging light situation under also can normal power generation work, it is not fastidious to light source, and guarantee system can be charged by day at any time, strong guarantee system power supply demand.
Energy supply control module 2: adopt the solar charging/discharging controller of standard, charging-discharging controller can be accomplished the charge and discharge protecting to electrical power storage equipment, can avoid super-charge super-discharge to electric energy storage device life damage.And can carry out overpressure protection to sun power input, and can carry out overcurrent protection to output, during especially to load supplying, be also to allow the electric current of accumulator first flow into controller for solar, after its adjusting, then electric current is sent into load; For stable discharging electric current; In order to ensure that accumulator is not by overdischarge; Can carry out a series of monitoring and protecting to load and accumulator;
In system, load is mainly hyper terminal and two-wire system process instrument, hyper terminal accesses with 4 instrument simultaneously, instantaneous power is calculated can not exceed 5 watts, but in order to mate the requirement of downstream end DC-DC module for power supply, so select 10A output 12V solar-electricity source controller, this controller output directly hyper terminal supplies electrical load interfaces;
Power storage module 3: the core that system power stores and discharges, select lithium iron phosphate dynamic battery; It has plurality of advantages to compare common lead-acid accumulator and general lithium battery:
(1) improvement in life-span, the cycle life of long-life lead-acid battery is 300 left and right, the highest also with regard to 500 times; And lithium iron phosphate dynamic battery, cycle life reaches more than 2000 times, and standard charging (5 hour rate) is used, and can reach 2000 times.The lead-acid battery of homogenous quantities is " new half a year, old half a year, safeguard and half a year ", and at most also with regard to 1～1.5 year, and ferric phosphate lithium cell uses under similarity condition, and the theory life-span will reach 7～8 years.
(2) improvement of security performance: the P-O key in LiFePO4 crystal is firm, is difficult to decompose, even if can be as cobalt acid lithium at high temperature or while overcharging yet structural breakdown heating or formation strong oxidizing property material, therefore have good security.
(3) high and low temperature impact is little: operating temperature range wide (45C--+95C), the effectively impact of withstand high temperatures, low temperature.
(4) large capacity: have than the larger capacity of common batteries (plumbic acid etc.).
(5) memory-less effect: chargeable battery is often being worked in being full of under the condition not discharging, and capacity can be rapidly lower than rated capacity value, and this phenomenon is called memory effect.Have Memorability as ni-mh, nickel-cadmium battery, and ferric phosphate lithium cell is without this phenomenon, battery, no matter in what state, can, with filling with use, need not first discharge and recharge.
(6) lightweight: the volume with the ferric phosphate lithium cell of equal-specification capacity is 2/3 of lead-acid battery volume, and weight is 1/3 of lead-acid battery.According to loading condition and front end solar cell specification, controller specification, we select 30AH, 12V ferric phosphate lithium cell.
Signal conversion wireless transport module 5: the analog quantity 4-20mA signal that field instrument is generally transmitted is transformed into digital signal, then be modulated into data code flow, by radio wave transmissions in wireless network, be transferred to then controlled room client demodulating information of dedicated channel INTERNET network, the information passing over by interface and configuration interface display instrument from ad Hoc wireless network.Build separately a set of wireless network very expensive, and long-time stability are not high, little because instrument is transmitted data stream, can carry out transmission of information with the mobile 2G-GPRS network that covers national 98% area completely, and this equipment is just hyper terminal, be also GPRS-RTU.RTU (Remote Terminal Unit) is a kind of far-end measurement and control unit device, is responsible for monitoring and control to on-site signal, commercial unit.Compared with conventional Programmable Logic Controller PLC, RTU will have good ability to communicate and larger memory capacity conventionally, is applicable to worse temperature and humidity environment, and more computing function is provided.Just because of the perfect function of RTU, make RTU product in SCADA system, obtain a large amount of application.
RTU (remote terminal unit) (RTU) is mounted in the electronic equipment of remote scene, is used for monitoring and measuring to be arranged on sensor and the equipment of remote scene.RTU converts the state recording or signal to can send on communication medium data layout.It also will send to such an extent that data convert order to from central computer, realize the function control to equipment.
GPRS RTU be RTU with based on China Mobile GSM network with GPRS function of surfing the Net together with being combined into, its important core function is:
(1) inner integrated ICP/IP protocol stack
GPRS RTU inside has encapsulated PPP dialing protocol and ICP/IP protocol stack and has had embedded OS, and from hardware, it can regard the combination of built-in PC and wireless GPRS MODEM as; It possesses, and GPRS dials up on the telephone and the function of TCP/IP data communication.
(2) support automatic heartbeat, keep permanent online
One of advantage of GPRS communication network is exactly to support GPRS terminal device forever online, therefore typical GPRS DTU supports permanent online function in design, this just requires DTU to comprise the auto dialing that powers on, adopts heartbeat packet to keep permanent online (in the time there is no data communication for a long time, mobile gateway will disconnect the connection at DTUYu center, to be exactly DTU send a small data packets with data center being connected before being disconnected to heartbeat packet, is not disconnected to keep connecting), support the features such as broken string Auto-reconnect, auto redial.
(3) support parameter configuration, persistence
GPRS DTU is as a kind of communication facilities, and its application scenario is very extensive.In different application, IP address and the port numbers of data center, the baud rate of serial ports etc. is all different.Therefore, GPRS DTU answers support parameter configuration, and the parameter configuring is preserved in inner permanent storage device and (is generally FLASH or EEPROM etc.).Once power on, just automatically carry out work according to the parameter setting.
(4) support user's serial ports parameter to arrange
The serial ports parameter of different user devices is different, when RTU connects the serial ports of subscriber equipment, carry out relative set to RTU end according to the actual parameter of subscriber equipment serial ports, ensures proper communication and the reliable data transmission of subscriber equipment.According to stating above, our hyper terminal is selected GPRS RTU, and do relevant raising signal to noise ratio (S/N ratio), dustproof, antidetonation, anti-electromagnetic interference (EMI) and the resistance to temperature shock of circuit and adverse environment resistant experiment and improve according to Xinjiang market demands, do relevant design and improvement, entrust the foundries on the ground such as Beijing and Xiamen to do printed circuit board (PCB) and module assembly foundry.Complete the development work of module.This secondary module adopts 12V power supply, and the 2G of China Mobile network SIM card straight cutting is supported in 4 road 4-20mA inputs.Carry 7db high-gain aerial.
Instrument power supply conversion module 4: adopt DC12 to complete the conversion of voltage to DC24 microelectronics boost module.Efficiency can reach 85%, select the boost module of maximum 0.5A output, every corresponding DC-DC boost module of instrument, by controller, to DC-DC boost module parallel operation, system supports at most 4 DC-DC boost modules to drive 4 field instrument loads to work simultaneously under normal circumstances.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. one kind for the long system apart from the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply, it is characterized in that, this is used for length and comprises apart from the system of the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply: electricity generation module, energy supply control module, power storage module, instrument power supply conversion module, signal conversion wireless transport module, monitoring host computer module;
Electricity generation module is for providing lasting power supply;
Energy supply control module, is connected with electricity generation module, for sun power input is carried out to overpressure protection, can carry out overcurrent protection to output, and load and accumulator are carried out to monitoring and protecting;
Power storage module, is connected with energy supply control module, is used to energy supply control module and instrument power supply conversion module that standby power supply is provided;
Signal conversion wireless transport module, is connected with energy supply control module, is transformed into digital signal for the analog quantity 4-20mA signal that field instrument is transmitted, and is then modulated into data code flow, by radio wave transmissions in wireless network;
Instrument power supply conversion module, is connected with power storage module, for adopting DC12 to complete the conversion of voltage to DC24 microelectronics boost module;
Monitoring host computer module, is connected with signal conversion wireless transport module by GPRS, for realizing the Long-distance Control of On The Oil And Gas Transportation circuit instrument.
2. as claimed in claim 1ly it is characterized in that for the long system apart from the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply, electricity generation module adopts 32 watts, 12V volt to export flexible solar hull cell plate.
3. as claimed in claim 1ly it is characterized in that energy supply control module employing solar charging/discharging controller for the long system apart from the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply.
4. as claimed in claim 1ly it is characterized in that the lithium iron phosphate dynamic battery of power storage module employing 30AH, 12V for the long system apart from the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply.
5. as claimed in claim 1 for the long system apart from the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply, it is characterized in that, signal conversion wireless transport module adopts 12V power supply, 4 road 4-20mA inputs, support the 2G of China Mobile network SIM card straight cutting, carry 7db high-gain aerial.
6. as claimed in claim 1ly it is characterized in that the boost module that instrument power supply conversion module adopts maximum 0.5A to export for the long system apart from the instrument signal teletransmission of On The Oil And Gas Transportation circuit and power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420164599.8U CN203812392U (en) | 2014-04-08 | 2014-04-08 | System for remote signal transmission and power supply of long-distance oil transportation and gas transportation line instrument |
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| CN201420164599.8U CN203812392U (en) | 2014-04-08 | 2014-04-08 | System for remote signal transmission and power supply of long-distance oil transportation and gas transportation line instrument |
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| CN203812392U true CN203812392U (en) | 2014-09-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103914963A (en) * | 2014-04-08 | 2014-07-09 | 陈东 | System for signal remote transmission and power supply of long-distance oil and gas transmission line instrument |
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2014
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103914963A (en) * | 2014-04-08 | 2014-07-09 | 陈东 | System for signal remote transmission and power supply of long-distance oil and gas transmission line instrument |
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Granted publication date: 20140903 Termination date: 20170408 |