CN103010263A - Carrier and image-based electric hydraulic switch machine working condition acquisition system - Google Patents
Carrier and image-based electric hydraulic switch machine working condition acquisition system Download PDFInfo
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- CN103010263A CN103010263A CN2012105320971A CN201210532097A CN103010263A CN 103010263 A CN103010263 A CN 103010263A CN 2012105320971 A CN2012105320971 A CN 2012105320971A CN 201210532097 A CN201210532097 A CN 201210532097A CN 103010263 A CN103010263 A CN 103010263A
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Abstract
The invention relates to the technical field of working condition monitoring, and provides a carrier and image-based electric hydraulic switch machine working condition acquisition system integrally combining main working condition parameters such as gap, oil pressure and oil level. The system comprises oil pressure sensors, a camera, a processor and a carrier communication modem, wherein the oil pressure sensors are used for monitoring oil pressure signals of an electric hydraulic switch machine oil cylinder and an electric hydraulic switch machine oil path respectively; the camera is used for acquiring an image signal of a gap part; the processor is used for receiving and processing signals acquired by the camera, the oil pressure sensor I and the oil pressure sensor II; and the carrier communication modem is used for transmitting the signals processed by the processor to an upper computer. The system has the advantages of capability of integrally combining gap monitoring, oil pressure monitoring and oil level monitoring of an electric hydraulic switch machine, high integration degree, capability of saving data processing and communication resource, convenience in mounting and capabilities of taking two-wire high-speed carrier as an uplink data channel, reducing the wiring requirements on the system and reducing the engineering cost and the maintenance cost.
Description
Technical field
The present invention relates to a kind of monitoring of working condition technical field, related in particular to a kind of working condition acquiring system of electrohydraulic point machine.
Background technology
Switch machine is to realize the accurately key equipment of conversion of track switch, and the closely connected degree of rail after the action of the reflection of the indication notch in switch machine switch machine, whether its state normally is related to the safe in operation of rail vehicle transportation; Electrohydraulic point machine is one of domestic main flow switch machine type, utilizes the rotation of motor-driven oil pump, drives the interlocking mechanism structure by oil circuit again, realizes the track switch conversion.The oil pressure of its switching process changes, daily oil cylinder oil level, is the parameter of service personnel major concern, changes in conjunction with breach, becomes the operating mode three large key elements of switch machine.
Existing monitoring jaggy mainly can be divided into mechanical type, photoelectric figure formula, video type three major types; The monitoring of oil pressure oil level often with Gap monitoring structure and electric discrete, establish one's own system.The mechanical type of Gap monitoring, photoelectric figure formula are progressively eliminated because of the defective of himself, and the on-line monitoring of oil pressure oil level begins progressively to use and promote.
Utilize video monitoring breach, cardinal principle is to take the gap portions picture, utilizes the technical host computer system that reaches of CAN bus and ADSL, by the image analysis software in the main frame, realize that breach identification and data quantize, finish monitoring function, and make accordingly prompting or warning.The monitoring of oil pressure oil level utilizes pressure sensor, directly test oil pressure, by with air pressure difference test oil level, then by 2 line low speed carrier waves or CAN bus data upload to main frame, analyze, record, report to the police.
Prior art mainly exists following defective and deficiency: utilize video monitoring breach, the complexity of having relatively high expectations, connect up to the data passage, cause the higher construction investment of Practical Project and installation work amount, have a strong impact on the popularization of track switch gap monitoring aspect pioneering technology; The in addition monitoring of oil pressure oil level does not have and Gap monitoring combines together, and need to will build the autonomous channel in extra installing space, the data transmission of the inner searching of switch machine on the structure, thereby the existence waste has resource, the problems such as difficult, that the data integration degree is low are installed.
Summary of the invention
The object of the present invention is to provide a kind of electrohydraulic point machine working condition acquiring system that the main duty parameter such as breach, oil pressure, oil level is combined together.
The object of the present invention is achieved like this, and the electrohydraulic point machine working condition acquiring system based on carrier wave and image comprises
The oil pressure sensor I is for detection of the fuel injection pressure signal of electrohydraulic point machine oil cylinder;
The oil pressure sensor II is for detection of the fuel injection pressure signal of electrohydraulic point machine oil circuit;
Camera is for the picture signal that gathers gap portions;
Treater is used for receiving signal and the processing that camera, oil pressure sensor I and oil pressure sensor II gather; And
Carrier communication modem, the signal that is used for treater was processed sends to upper computer.
As preferably, described carrier communication modem is electrically connected with upper computer by AFE(analog front end), is provided with 2 line carrier data passages between described AFE(analog front end) and the upper computer.
As preferably, described carrier communication modem model is MAX2992, and described AFE(analog front end) model is MAX2991.
As preferably, described oil pressure sensor I and oil pressure sensor II are the resistance-strain pressure sensor.
As preferably, described treater is that model is the arm processor of STM32.
As preferably, be provided with frame buffered device between the data-interface of described camera and treater, the view data buffering that described frame buffered device obtains camera obtains the breach picture frame and sends to treater.
As preferably, described electrohydraulic point machine working condition acquiring system based on carrier wave and image also comprises a RAM memory device, is stored in the RAM memory device after the breach picture frame compression that described treater sends frame buffered device temporarily.
As preferably, described oil pressure sensor I and oil pressure sensor II are connected to respectively the A/D translation interface of treater by AFE(analog front end) treatment circuit I and AFE(analog front end) treatment circuit II, and treater obtains current oil force feed bit data by the slippage filtering algorithm.
As preferably, described treater is connected with carrier communication modem by the SPI Serial Peripheral Interface (SPI), controls the carrier data passage and uploads breach JPG image and oil pressure oil level data.
As preferably, described electrohydraulic point machine working condition acquiring system based on carrier wave and image also comprises analog video interface, and described analog video interface is used for exporting the analog picture signal of camera collection to video monitor.
Electrohydraulic point machine working condition acquiring system based on carrier wave and image of the present invention, the Gap monitoring, oil pressure monitoring, the oil level that merge electrohydraulic point machine are monitored in one, and integrated level is high, can save data and process and the communication resource, and be convenient to install; And adopt 2 line high speed carrier waves as the upstream data passage, can reduce the cabling requirement to system, reduce project cost and maintenance cost.
Description of drawings:
Fig. 1 shows the structural representation based on the electrohydraulic point machine working condition acquiring system of carrier wave and image.
Specific embodiments:
Referring to Fig. 1, the electrohydraulic point machine working condition acquiring system based on carrier wave and image is characterized in that: comprise
The oil pressure sensor I is for detection of the fuel injection pressure signal of electrohydraulic point machine oil cylinder.
The oil pressure sensor II is for detection of the fuel injection pressure signal of electrohydraulic point machine oil circuit.
Camera is for the picture signal that gathers gap portions; Being provided with model between the data-interface of described camera and treater is the frame buffered device of AL422B, and the view data buffering that described frame buffered device obtains camera obtains the breach picture frame and sends to treater.
Treater is used for receiving signal and the processing that camera, oil pressure sensor I and oil pressure sensor II gather; Described treater is that model is the arm processor of STM32.
The RAM memory device is stored in the RAM memory device behind the breach picture frame boil down to JPG image of described treater with the transmission of frame buffered device temporarily.
Carrier communication modem, described carrier communication modem is electrically connected with upper computer by AFE(analog front end), is connected with treater by the SPI Serial Peripheral Interface (SPI), is used for breach JPG image and oil pressure oil level data after the upload process device is processed; Be provided with 2 line carrier data passages between described AFE(analog front end) and the upper computer, general system will power and data transmission simultaneously, minimum needs 4 lines; Share 2 lines and power and transmit here, so saved the line number; The preferred model of described carrier communication modem is MAX2992, and the preferred model of described AFE(analog front end) is MAX2991.
Analog video interface is used for exporting the analog picture signal of camera collection to video monitor, to make things convenient for field observation and debugging.
Internal electric source is used to based on each parts in the electrohydraulic point machine working condition acquiring system of carrier wave and image power supply is provided.
Electron tube is connected with treater, is used for showing data.
Described oil pressure sensor I and oil pressure sensor II preferably adopt the resistance-strain pressure sensor, with the precision and stability that guarantees to gather.Described oil pressure sensor I and oil pressure sensor II are connected to respectively the A/D translation interface of treater by AFE(analog front end) treatment circuit I and AFE(analog front end) treatment circuit II, treater obtains current oil force feed bit data by the slippage filtering algorithm.
The present invention is based on the frequency of operation 10kHz～490kHz of the electrohydraulic point machine working condition acquiring system of carrier wave and image, transfer rate is up to 300kbps, adopt the oil pressure fuel level sensor of high precision and stability, add high-precision A in the primary processor/D conversion, the Stability and veracity of data can be provided.JPG compressed image resolution can be set to support 352*288,176*144, and breach JPG view data capacity guarantees the efficient of data transmission in 3k～8k byte.Adopting STM32ARM is main MCU, finishes image acquisition, compression and transmission; Finish the data acquisition of oil pressure oil level, filtering, calculating, guarantee data accuracy.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. based on the electrohydraulic point machine working condition acquiring system of carrier wave and image, it is characterized in that: comprise
The oil pressure sensor I is for the fuel injection pressure signal of monitoring electrohydraulic point machine oil cylinder;
The oil pressure sensor II is for the fuel injection pressure signal of monitoring electrohydraulic point machine oil circuit;
Camera is for the picture signal that gathers gap portions;
Treater is used for receiving signal and the processing that camera, oil pressure sensor I and oil pressure sensor II gather; And
Carrier communication modem, the signal that is used for treater was processed sends to upper computer.
2. the electrohydraulic point machine working condition acquiring system based on carrier wave and image according to claim 1, it is characterized in that: described carrier communication modem is electrically connected with upper computer by AFE(analog front end), and 2 line carrier data passages are set between described AFE(analog front end) and the upper computer.
3. the electrohydraulic point machine working condition acquiring system based on carrier wave and image according to claim 2, it is characterized in that: described carrier communication modem model is MAX2992, described AFE(analog front end) model is MAX2991.
4. the electrohydraulic point machine working condition acquiring system based on carrier wave and image according to claim 1, it is characterized in that: described oil pressure sensor I and oil pressure sensor II are the resistance-strain pressure sensor.
5. the electrohydraulic point machine working condition acquiring system based on carrier wave and image according to claim 1, it is characterized in that: described treater is that model is the arm processor of STM32.
6. each described electrohydraulic point machine working condition acquiring system based on carrier wave and image according to claim 1-5, it is characterized in that: be provided with frame buffered device between the data-interface of described camera and treater, the view data buffering that described frame buffered device obtains camera obtains the breach picture frame and sends to treater.
7. the electrohydraulic point machine working condition acquiring system based on carrier wave and image according to claim 6, it is characterized in that: described electrohydraulic point machine working condition acquiring system based on carrier wave and image also comprises a RAM memory device, is stored in the RAM memory device after the breach picture frame that described treater sends frame buffered device compresses temporarily.
8. each described electrohydraulic point machine working condition acquiring system based on carrier wave and image according to claim 1-5, it is characterized in that: described oil pressure sensor I and oil pressure sensor II are connected to respectively the A/D translation interface of treater by AFE(analog front end) treatment circuit I and AFE(analog front end) treatment circuit II, treater obtains current oil force feed bit data by the slippage filtering algorithm.
9. the electrohydraulic point machine working condition acquiring system based on carrier wave and image according to claim 8, it is characterized in that: described treater is connected with carrier communication modem by the SPI Serial Peripheral Interface (SPI), and control carrier data passage is uploaded breach JPG image and oil pressure oil level data.
10. each described electrohydraulic point machine working condition acquiring system based on carrier wave and image according to claim 1-5, it is characterized in that: described electrohydraulic point machine working condition acquiring system based on carrier wave and image also comprises analog video interface, and described analog video interface is used for exporting the analog picture signal of camera collection to video monitor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105320971A CN103010263A (en) | 2012-12-07 | 2012-12-07 | Carrier and image-based electric hydraulic switch machine working condition acquisition system |
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| CN2012105320971A CN103010263A (en) | 2012-12-07 | 2012-12-07 | Carrier and image-based electric hydraulic switch machine working condition acquisition system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228881A (en) * | 2014-09-09 | 2014-12-24 | 宁波思高信通科技有限公司 | Switch machine gap representation video monitoring system and method |
| CN105490707A (en) * | 2016-01-11 | 2016-04-13 | 国家电网公司 | OFDM-based high-speed narrowband carrier communication device |
| CN109756707A (en) * | 2018-12-24 | 2019-05-14 | 宁波思高信通科技有限公司 | A kind of goat track switch gap monitoring system |
Citations (1)
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| CN1600611A (en) * | 2004-10-10 | 2005-03-30 | 北京交通大学 | Method for monitoring operating state of switch machine for switches and crossings of wheel track |
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- 2012-12-07 CN CN2012105320971A patent/CN103010263A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1600611A (en) * | 2004-10-10 | 2005-03-30 | 北京交通大学 | Method for monitoring operating state of switch machine for switches and crossings of wheel track |
Non-Patent Citations (1)
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| 张智 等: ""电液转辙机在线监测系统"", 《铁道通信信号》, vol. 43, no. 10, 31 October 2007 (2007-10-31), pages 4 - 5 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228881A (en) * | 2014-09-09 | 2014-12-24 | 宁波思高信通科技有限公司 | Switch machine gap representation video monitoring system and method |
| CN105490707A (en) * | 2016-01-11 | 2016-04-13 | 国家电网公司 | OFDM-based high-speed narrowband carrier communication device |
| CN109756707A (en) * | 2018-12-24 | 2019-05-14 | 宁波思高信通科技有限公司 | A kind of goat track switch gap monitoring system |
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Application publication date: 20130403 |