CN204065764U - A kind of long-haul telemetry terminal control unit - Google Patents
A kind of long-haul telemetry terminal control unit Download PDFInfo
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- CN204065764U CN204065764U CN201420179654.0U CN201420179654U CN204065764U CN 204065764 U CN204065764 U CN 204065764U CN 201420179654 U CN201420179654 U CN 201420179654U CN 204065764 U CN204065764 U CN 204065764U
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Abstract
The utility model discloses a kind of long-haul telemetry terminal control unit.Long-haul telemetry terminal control unit disclosed in the utility model comprises microprocessor, communication module, data acquisition and control module, memory module, hardware watchdog, power module, described memory module it comprise primary storage, secondary to store, internal memory, described primary storage, secondary storage, internal memory are connected with microprocessor respectively, and described primary storage is for storing operating system; Described pair stores for storing the operating system identical with primary storage and boot loader; When the operating system of primary storage can not normally start, boot loader can read the secondary operating system stored and normally start to make controllable telrmetry terminal control unit, ensures the system startup stability of long-haul telemetry terminal control unit lowered in field environment work.
Description
Technical field
The utility model relates to production of hydrocarbons digital Construction on-site data gathering field, particularly relates to a kind of long-haul telemetry terminal control unit.
Background technology
Along with the continuous expansion of production of hydrocarbons scale and improving constantly Automation of Manufacturing Process requirement, utilize data conversion technique as the basic means of DATA REASONING, acquisition process and process control, and the distributed monitoring system combined with computer technology, mechanics of communication, replace the trend that integrated system becomes operating system hardware advances.Wherein, long-haul telemetry terminal control unit (RTU) is as one conventional in distributed monitoring system, and its application is more and more universal.Long-haul telemetry terminal control unit (RTU) is widely used at Chinese Petroliferous as the product embodying " observing and controlling dispersion, management are concentrated " thinking.
Long-haul telemetry terminal control unit (RTU) is the abbreviation of REMOTE TERMINAL UNIT, for monitoring, controlling the application with data acquisition, integrate remote measurement, remote signalling, remote regulating, distant control function, and be widely used in various data acquisition and monitor operating system (Supervisory Control And Data Acquisit, SCADA).
Usually, long-haul telemetry terminal control unit (RTU) is usually made up of a few major parts such as CPU (central processing unit) (microprocessor), communication interface, storage unit, simulating signal input-output unit, switching signal input-output unit, digital signal input-output unit, power supply units.In addition, according to practical application request, some long-haul telemetry terminal control unit (RTU) products too increase some specific functions, as the function such as video, hardware redundancy.
On-the-spot in engineering construction, although existing long-haul telemetry terminal control unit has carried different independently programs according to the operating system of its inside of different application scene, for industry is provided convenience, long-haul telemetry terminal control unit is also along with the development development of technology, the long-haul telemetry terminal control unit of serving oil field data collection industry is installed in a large number, is also widely used in the fields such as electric power, water conservancy, the energy, environmental protection, traffic, Geographic Information System.At present, due to the difference of the dispersion of oil gas factory mouth geographic position, operating mode etc., following demand is proposed to long-haul telemetry terminal control unit:
1, long-haul telemetry terminal control unit is on-the-spot in data acquisition control, and it is abundant to need that acknowledge(ment) signal type is various, interface is counted, with the demand that the difference that adapts to that production scene gathers unlike signal type, different production scenes signal is counted is larger.
2, long-haul telemetry terminal control unit needs communication modes compatible different on communication mode, and user can, according to site environment, carry out selecting to realize the interconnection with field controller from communication.
3, because Oil Field is various, circumstance complication, long-haul telemetry terminal control unit can suffer thunderbolt, heavy current, storer damage etc. in the course of the work, so more need the stable of long-haul telemetry terminal control unit system.
Utility model content
For solving the defect of above-mentioned existing long-haul telemetry terminal control unit, the utility model provides a kind of long-haul telemetry terminal control unit, comprises microprocessor, communication module, data acquisition and control module, memory module, hardware watchdog, power module,
Wherein, described hardware watchdog is connected with microprocessor, for monitor operating system software program operation conditions; Described communication module comprises communication interface, and communication module is connected with microprocessor, communicates with external device for long-haul telemetry terminal control unit; Described data acquisition and control module comprises data acquisition and control interface, and data acquisition and control module is connected with microprocessor, carries out data collection and control for long-haul telemetry terminal control unit to on-the-spot IO interface; Described power module is connected with microprocessor; Described memory module comprises primary storage, secondary storage, internal memory, and described primary storage, secondary storage, internal memory are connected with microprocessor respectively, and described primary storage is for storing operating system; Described pair stores for storing the operating system identical with primary storage and boot loader.
According to technique scheme, the utility model by arranging secondary storage, and stores up the operating system identical with primary storage at secondary stored memory.Exist in primary storage bad block affect its domestic os start, boot loader in being stored by pair goes the operating system in pair storage again to write in primary storage again to start, when primary storage so just can be avoided to start the operating system, long-haul telemetry terminal control unit can also normally run, and ensures the collection of data.And in extreme circumstances, primary storage is subject to larger damage, cause cannot write operation system when, can also by internal storage starting, strengthen the stability of long-haul telemetry terminal control unit system further.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of long-haul telemetry terminal control of the utility model apparatus schematic diagram;
Fig. 2 is a kind of long-haul telemetry terminal control unit of the utility model embodiment device schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Below with reference to Figure of description, describe the utility model in detail.
Fig. 1 is that the utility model provides a kind of long-haul telemetry terminal control unit schematic diagram.As shown in Figure 1, described long-haul telemetry terminal control unit comprises microprocessor, communication module, data acquisition and control module, memory module, hardware watchdog, power module,
Wherein, described hardware watchdog is connected with microprocessor, for monitor operating system software program operation conditions; Described communication module comprises communication interface, and communication module is connected with microprocessor, communicates with external device for long-haul telemetry terminal control unit; Described data acquisition and control module comprises data acquisition and control interface, and data acquisition and control module is connected with microprocessor, carries out data collection and control for long-haul telemetry terminal control unit to on-the-spot IO interface; Described power module is connected with microprocessor; Described memory module it comprise primary storage, secondary to store, internal memory, described primary storage, secondaryly to store, internal memory is connected with microprocessor respectively, described primary storage is for storing operating system; Described pair stores for storing the operating system identical with primary storage and boot loader.
Further, described primary storage is connected with microprocessor by parallel interface, and described pair is stored and is connected with microprocessor by serial line interface.
Further, described primary storage adopts Nand-flash, and secondary storage adopts SPI-fLASH, and internal memory adopts SDRAM.
Further, described operating system adopts linux operating system.
Further, described boot loader comprises: bootstrap, U-boot; Described bootstrap is for starting U-boot; The operating system that U-boot is used for school inspection operating system and reads in secondary storage.
Further, described communication module comprises Ethernet interface, RS232 interface, RS485 interface.
Further, described Ethernet interface adopts 10/,100,000,000 adaptive network interfaces; Described RS232 interface, RS485 interface are for receiving and send the data meeting Modbus agreement.
Further, described data acquisition and control interface comprises DI interface, DO interface, AI interface, AO interface, PI interface.
Further, photoelectrical coupler is provided with between described microprocessor and communication module, data acquisition and control module.
A kind of specific embodiment below in conjunction with a kind of long-haul telemetry of the utility model terminal control unit describes the utility model in detail.
Fig. 2 is a kind of long-haul telemetry terminal control unit of the utility model embodiment device schematic diagram, as shown in Figure 2, the long-haul telemetry terminal control unit of described the present embodiment comprises microprocessor, hardware watchdog, memory module, power module, wireless communication module, Ethernet interface, RS232 interface, RS485 interface, DI interface, DO interface, AI interface, AO interface, PI interface.Described hardware watchdog, power module, ZIGBEE communication module, Ethernet interface, RS232 interface, RS485 interface, DI interface, DO interface, AI interface, AO interface, PI interface are connected with microprocessor respectively.Described memory module it comprise primary storage, secondary to store, internal memory, described primary storage, secondaryly to store, internal memory is connected with microprocessor respectively.
Described primary storage is Nand-flash, and it is connected with microprocessor by parallel interface, for storing operating system.Described pair is stored as SPI-flash, and it is connected with microprocessor by serial line interface, for storing alternate operating system and boot loader.Internal memory adopts SDRAM, and it is connected with microprocessor by parallel interface.
Described boot loader comprises bootstrap and U-boot, starts U-boot by bootstrap.First the operating system in Nand-flash is examined in school by the school checking functions of U-boot:
If school inspection is correct, then the operating system that remote-terminal controller directly starts Nand-flash is run;
If school error detection by mistake, then U-boot can read operating system in SPI-flash to internal memory, then the operating system in internal memory is write Nand-flash, and then operating system again in school inspection Nand-flash is whether correct, if school inspection is correct, then start the operating system in Nand-flash, if mistake, then illustrate that Nand-flash may comprise large area bad block, cannot continue to use, so now directly the operating system started in internal memory normally run to make long-haul telemetry terminal control unit.
Described hardware watchdog is connected with microprocessor, for monitoring the present embodiment long-haul telemetry terminal control unit operating system software program operation conditions.Power module adopts DC/DC insulating power supply module.More specifically; the isolation voltage of described DC/DC insulating power supply can reach 2 kilovolts of DC, and allows 18 ~ 36 volts of DC input ranges, and work efficiency reaches 86%; support reverse connecting protection and short-circuit protection, to reduce the electromagnetic interference (EMI) of the present embodiment long-haul telemetry terminal control unit system.
The present embodiment long-haul telemetry terminal control unit adopts RS485 interface, RS232 interface and other equipment to carry out communication, also can pass through with wireless communication mode and other device talks, can also by Ethernet interface and device talk, and microprocessor be used to complete the repertoires such as control, collection, computing, Communication processing.
Described RS485 interface and RS232 interface send and receive the data meeting Modbus agreement.The data that interface receives are transferred in operating system, and the data that interface sends are transferred to other equipment outside long-haul telemetry terminal control unit.Described RS485 interface, RS232 interface are equipped with photoelectrical coupler, described photoelectrical coupler is used at each interface described when carrying out Signal transmissions with outside, once suffer strong surge impact, limit its damage envelope inner at this functional unit, other functional unit is unaffected, can continue to make the work of long-haul telemetry terminal control unit, reach the object reducing surge and destroy.
Described Ethernet interface can adopt 10/,100,000,000 adaptive network interfaces, for carrying out the data interaction between long-haul telemetry terminal control unit and network.
Described ZIGBEE communication module sends and receives the data meeting ZIGBEE agreement, to make the interconnection of long-haul telemetry terminal control unit and other wireless instruments (as the instrument such as Wireless loading, wireless angular displacement), control and exchanges data.
Further illustrate the present embodiment, described communication module comprises 3 road RS485 interfaces, 2 RS232 interface 1 road, road Ethernet interfaces, 1 road ZIGBEE communication interface.
As shown in Figure 2, described AI interface comprises AI interface, ADC device, photoelectrical coupler.AI interface is connected with ADC device, and ADC device is connected with microprocessor, and, be provided with photoelectrical coupler between ADC device and microprocessor.Described ADC device (simulating signal turns digital signal device) is converted to digital signal for the simulating signal inputted by AI interface and is input in microprocessor; photoelectrical coupler is subject to strong surge impact for avoiding AI interface, protects other functional units in this unit unaffected.Described AO interface is used for outputting analog signal.AO interface comprises AO interface, DAC device, photoelectrical coupler.AO interface is connected with ADC device, and DAC device is connected with microprocessor, and, be provided with photoelectrical coupler between DAC device and microprocessor.Described DAC device (digital signal turns analog signal instrumentation) transfers simulating signal to for the digital signal that microprocessor exports and is sent to AO interface carries out analog signal output; Photoelectrical coupler is subject to strong surge impact for avoiding AO interface, protects other functional units in this unit unaffected.Described DI interface is used for supplied with digital signal; DI interface comprises DI interface and photoelectrical coupler; DI interface is connected with microprocessor; and be provided with photoelectrical coupler between DI interface and microprocessor; photoelectrical coupler is subject to strong surge impact for avoiding DI interface, protects other functional units in this unit unaffected.Described DO interface is used for supplied with digital signal; DO interface comprises DO interface and photoelectrical coupler; DO interface is connected with microprocessor; and be provided with photoelectrical coupler between DO interface and microprocessor; photoelectrical coupler is subject to strong surge impact for avoiding DO interface, protects other functional units in this unit unaffected.Described PI interface is used for input pulse signal; PI interface comprises PI interface and photoelectrical coupler; PI interface is connected with microprocessor; and be provided with photoelectrical coupler between PI interface and microprocessor; photoelectrical coupler is subject to strong surge impact for avoiding PI interface, protects other functional units in this unit unaffected.
AI interface, AO interface, DI interface and DO interface are also provided with resettable fuse and bilateral transient voltage suppression diode (TVS pipe) protects, and improves the stability of interface transmission data further.
More illustrate the present embodiment long-haul telemetry terminal control unit, described AI interface adopts 8 road analog inputs; AO interface adopts 4 road analog outputs; DI interface adopts 8 railway digital amount inputs; DO interface adopts 4 railway digital amounts to export; PI interface adopts 4 road high-speed pulse counting inputs.Like this, long-haul telemetry terminal control unit can gather 8 road analog datas, 8 railway digital amount data, 4 road Puled input data simultaneously.
The present embodiment long-haul telemetry terminal control unit by arranging secondary storage, and stores up the operating system identical with primary storage at secondary stored memory.Exist in primary storage bad block affect its domestic os start, boot loader in being stored by pair goes the operating system in pair storage again to write in primary storage again to start, when primary storage so just can be avoided to start the operating system, long-haul telemetry terminal control unit can also normally run, and ensures the collection of data.And in extreme circumstances, primary storage is subject to larger damage, cause cannot write operation system when, can also by internal storage starting, strengthen the stability of long-haul telemetry terminal control unit system further.
Apply specific embodiment in the utility model to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (7)
1. a long-haul telemetry terminal control unit, is characterized in that, comprises microprocessor, communication module, data acquisition and control module, memory module, hardware watchdog, power module,
Wherein, described hardware watchdog is connected with microprocessor, for monitor operating system software program operation conditions; Described communication module comprises communication interface, and communication module is connected with microprocessor, communicates with external device for long-haul telemetry terminal control unit; Described data acquisition and control module comprises data acquisition and control interface, and data acquisition and control module is connected with microprocessor, carries out data collection and control for long-haul telemetry terminal control unit to on-the-spot IO interface; Described power module is connected with microprocessor; Described memory module comprises primary storage, secondary storage, internal memory, and described primary storage, secondary storage, internal memory are connected with microprocessor respectively, and described primary storage is for storing operating system; Described pair stores for storing the operating system identical with primary storage and boot loader.
2. long-haul telemetry terminal control unit as claimed in claim 1, it is characterized in that, described primary storage is connected with microprocessor by parallel interface, and described pair is stored and is connected with microprocessor by serial line interface.
3. long-haul telemetry terminal control unit as claimed in claim 1, is characterized in that, described primary storage adopts Nand-flash, and secondary storage adopts SPI-fLASH, and internal memory adopts SDRAM.
4. long-haul telemetry terminal control unit as claimed in claim 1, it is characterized in that, described communication module comprises Ethernet interface, RS232 interface, RS485 interface.
5. long-haul telemetry terminal control unit as claimed in claim 4, is characterized in that, described Ethernet interface adopts 10/,100,000,000 adaptive network interfaces; Described RS232 interface, RS485 interface are for receiving and send the data meeting Modbus agreement.
6. long-haul telemetry terminal control unit as claimed in claim 1, it is characterized in that, described data acquisition and control interface comprises DI interface, DO interface, AI interface, AO interface, PI interface.
7. long-haul telemetry terminal control unit as claimed in claim 1, is characterized in that, is provided with photoelectrical coupler between described microprocessor and communication module, data acquisition and control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179654.0U CN204065764U (en) | 2014-04-15 | 2014-04-15 | A kind of long-haul telemetry terminal control unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420179654.0U CN204065764U (en) | 2014-04-15 | 2014-04-15 | A kind of long-haul telemetry terminal control unit |
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| CN204065764U true CN204065764U (en) | 2014-12-31 |
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| CN201420179654.0U Withdrawn - After Issue CN204065764U (en) | 2014-04-15 | 2014-04-15 | A kind of long-haul telemetry terminal control unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103955158A (en) * | 2014-04-15 | 2014-07-30 | 中国石油集团东方地球物理勘探有限责任公司 | Remote telemetry terminal controller and system start method |
-
2014
- 2014-04-15 CN CN201420179654.0U patent/CN204065764U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103955158A (en) * | 2014-04-15 | 2014-07-30 | 中国石油集团东方地球物理勘探有限责任公司 | Remote telemetry terminal controller and system start method |
| CN103955158B (en) * | 2014-04-15 | 2016-08-17 | 中国石油集团东方地球物理勘探有限责任公司 | A kind of long-haul telemetry terminal controller and system start method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141231 Effective date of abandoning: 20160817 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |