CN203037263U - Mileage modification value obtaining device based on railway track insulation joint frequency shift signal - Google Patents
Mileage modification value obtaining device based on railway track insulation joint frequency shift signal Download PDFInfo
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- CN203037263U CN203037263U CN 201220647494 CN201220647494U CN203037263U CN 203037263 U CN203037263 U CN 203037263U CN 201220647494 CN201220647494 CN 201220647494 CN 201220647494 U CN201220647494 U CN 201220647494U CN 203037263 U CN203037263 U CN 203037263U
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Abstract
The utility model discloses a mileage modification value obtaining device based on a railway track insulation joint frequency shift signal, relates to the field of railways, and aims at providing a device for obtaining a train driving mileage according to the railway track insulation joint frequency shift signal. The device adopts the technical scheme that the device comprises a frequency shift signal receiving device, a signal shaping unit, a signal processing unit, a signal output unit and a data processing unit that are connected sequentially.
Description
Technical field
The utility model relates to railway territory, particularly a kind of device that obtains the train driving mileage according to railroad track insulation joint frequency-shift signaling.
Background technology
Existing contact suspension parameter detection of dynamic mileage location technology mainly adopts the photoelectric encoder that is contained on the wheel axle box to carry out.Owing to can occur skidding in the train travelling process, states such as emergency brake, serpentine locomotion, all can cause record mileage and actual mileage to have certain error, concrete, when wheel-slip or emergency brake when train driving, occurring, wheel can not rotate, thereby littler than actual value by the detected mileage value of photoelectric encoder; When serpentine locomotion appears in train, bigger than reality by the detected mileage value of photoelectric encoder.In order to reduce such error, in actual moving process, need mileage is revised in real time.The main pillar that adopts is located or GPS mileage correction location technology at present.All there is deficiency in such two kinds of correcting modes: the pillar correcting mode is not that each bar position can both correctly be identified owing to there is the defective of detection technique, and its mileage modified value existed to revise or leak to be revised; There are problems such as signal blind zone and self poisoning precision be relatively low in the GPS location technology, and its modified value also exists than mistake.
The utility model content
Goal of the invention of the present utility model is: at the problem of above-mentioned existence, provide a kind of device that obtains train driving mileage modified value according to railroad track insulation joint frequency-shift signaling.
The technical solution adopted in the utility model is such: comprise frequency-shift signaling receiving trap, signal reshape unit, signal processing unit, signal output unit and data processing unit; Described frequency-shift signaling receiving trap, signal reshape unit, signal processing unit, signal output unit and data processing unit are linked in sequence.
Preferably, described frequency-shift signaling receiving trap comprises inductive coil; The two ends of inductive coil are connected with two input ends of signal reshape unit.
Preferably, described inductive coil comprises inductive coil A and the inductive coil B that is connected in series; Inductive coil A and inductive coil B be installed in inspection vehicle first round pair and second take turns between, and inductive coil A and inductive coil are parallel to each other to be positioned at and detect the car body left and right sides, compartment.
Preferably, described signal reshape unit is used for the signal of inductive coil output is carried out filtering and demodulation, extracts insulation joint pulse signal and output.
Preferably, described signal processing unit comprises counter and processor, and the pulse signal input terminal of described counter is connected with the output terminal of signal reshape unit, and the pulse frequency output terminal of counter is connected with the input end of processor; Whether processor is used for comparing pulsed frequency and equates with one of some insulation joint pulsed frequencies of presetting, if equate that processor is to signal output unit output insulation joint pulse useful signal.
Preferably, described signal output unit is used for insulation joint pulse useful signal is converted to trigger pip, and to data processing unit output trigger pip.
Preferably, described data processing unit is used for statistics trigger pip number, and obtains the mileage modified value according to the trigger pip number.
In sum, owing to adopted technique scheme, the beneficial effects of the utility model are:
When this device utilizes inspection vehicle through track insulation joint teleseme fixed position, receive its track insulation joint signal, in real time current odometer is revised by this signal.Because what this device received is the railroad track signal, can effectively avoid the problem of omission, because track insulation internode crack is very little, the bearing accuracy of this device is higher in addition.
Description of drawings
Fig. 1 is coil installation site synoptic diagram in this device.
Fig. 2 is this device circuit theory diagram.
Mark among the figure: 1 is the detection compartment in the train; 2 is that the first round is right; 3 be second take turns right; 4 is inductive coil; 5 is rail.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
In general, insulation joint on the railway all is provided with a teleseme, each teleseme can be modulated to the electric impulse signal of certain frequency outwards emission on the high frequency carrier, and the initial effect of teleseme is to be convenient to command centre/dispatching center to grasp the occupied situation of every lengths of rail.The frequency-shift signaling that the utility model utilizes each insulation joint teleseme to send obtains train driving mileage modified value.
As shown in Figure 2, the disclosed mileage modified value deriving means based on railroad track insulation joint shift frequency of the utility model comprises frequency-shift signaling receiving trap, signal reshape unit, signal processing unit, signal output unit and data processing unit; Described frequency-shift signaling receiving trap, signal reshape unit, signal processing unit, signal output unit and data processing unit are linked in sequence.
Wherein, described frequency-shift signaling receiving trap comprises inductive coil; Inductive coil is used for the frequency-shift signaling (sinusoidal wave form) that induction insulation joint teleseme sends, and the two ends of inductive coil are connected with two input ends of signal reshape unit.Inductive coil is exported to signal reshape unit with the frequency-shift signaling of sensing.
In order to improve the sensitivity of inductive coil, can adopt a plurality of coils to connect, for example, use two inductive coil A, B.Inductive coil A and inductive coil B series connection, the other end of inductive coil A is connected with an input end of signal transformation circuit, and another output terminal of inductive coil B is connected with another input end of signal transformation circuit.As Fig. 1, inductive coil A4 and inductive coil B4 are installed in 1 first round of inspection vehicle and take turns between 32 and second, and inductive coil A and inductive coil B are parallel to each other to be positioned at and detect the car body left and right sides, compartment.
Described signal reshape unit is used for the signal of inductive coil output is carried out filtering and demodulation, concrete, signal reshape unit can comprise a filtering circuit and detuner, the input end of filtering circuit is as the input end of signal reshape unit, the effect of filtering circuit is the noise in the filtered signal, the output terminal of filtering circuit is connected with the output terminal of detuner, and detuner extracts insulation joint pulse signal and output with the frequency-shift signaling demodulation.
Described signal processing unit comprises counter and processor, and the pulse signal input terminal of described counter is connected with the output terminal of signal reshape unit, and the pulsed frequency output terminal of counter is connected with the input end of processor; Whether processor is used for comparing pulsed frequency and equates with one of some insulation joint pulsed frequencies of presetting, if equate that processor is to signal output unit output insulation joint pulse useful signal.Concrete, store a tables of data or database in the processor in advance, wherein comprised the pulse signal frequency of all insulation joints on the running rail at least, after processor receives the pulsed frequency of counter output, judge whether this pulsed frequency belongs to the pulse signal frequency of a certain insulation joint on the running rail, if illustrate that detected insulation joint frequency-shift signaling is effective.She Ji purpose is to have received the insulation joint frequency-shift signaling for the undesired signal that prevents from existing in the environment makes the device erroneous judgement like this, has further guaranteed precision and the reliability of device.Described insulation joint pulse useful signal can be high level or low level.
Described signal output unit is used for insulation joint pulse useful signal is converted to trigger pip, and to data processing unit output trigger pip.Described trigger pip can one positive pulse or negative pulse.Such circuit is comparatively common, repeats no more its particular circuit configurations again.
Described data processing unit is used for statistics trigger pip number, and concrete, data processing unit comprises counter, and its inside has been pre-created database, data-base recording trigger pip number and mileage number corresponding relation.Data processing unit is searched its mileage modified value corresponding in database according to the trigger pip number of receiving.
Concrete makeover process is such, data processing unit compares the mileage actual detected value of mileage modified value and pick-up unit (as photoelectric encoder) output, if modified value and actual detected value differ more than 4 ~ 8m, think that then actual detected value error is bigger, the actual detected value is replaced with modified value.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. the mileage modified value deriving means based on railroad track insulation joint frequency-shift signaling is characterized in that, comprises frequency-shift signaling receiving trap, signal reshape unit, signal processing unit, signal output unit and data processing unit; Described frequency-shift signaling receiving trap, signal reshape unit, signal processing unit, signal output unit and data processing unit are linked in sequence.
2. mileage modified value deriving means according to claim 1 is characterized in that, described frequency-shift signaling receiving trap comprises inductive coil; The two ends of inductive coil are connected with two input ends of signal reshape unit.
3. mileage modified value deriving means according to claim 2 is characterized in that, described inductive coil comprises inductive coil A and the inductive coil B that is connected in series; Inductive coil A and inductive coil B be installed in inspection vehicle first round pair and second take turns between, and inductive coil A and parallel being positioned at of inductive coil B are detected the car body left and right sides, compartment.
4. mileage modified value deriving means according to claim 3 is characterized in that, described signal reshape unit is used for the signal of inductive coil output is carried out filtering and demodulation, extracts insulation joint pulse signal and output.
5. mileage modified value deriving means according to claim 4, it is characterized in that, described signal processing unit comprises counter and processor, the pulse signal input terminal of described counter is connected with the output terminal of signal reshape unit, and the pulse frequency output terminal of counter is connected with the input end of processor; Whether processor is used for comparing pulsed frequency and equates with one of some insulation joint pulsed frequencies of presetting, if equate that processor is to signal output unit output insulation joint pulse useful signal.
6. mileage modified value deriving means according to claim 5 is characterized in that, described signal output unit is used for insulation joint pulse useful signal is converted to trigger pip, and to data processing unit output trigger pip.
7. mileage modified value deriving means according to claim 6 is characterized in that, described data processing unit is used for statistics trigger pip number, and obtains the mileage modified value according to the trigger pip number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647494 CN203037263U (en) | 2012-11-30 | 2012-11-30 | Mileage modification value obtaining device based on railway track insulation joint frequency shift signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647494 CN203037263U (en) | 2012-11-30 | 2012-11-30 | Mileage modification value obtaining device based on railway track insulation joint frequency shift signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203037263U true CN203037263U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220647494 Expired - Lifetime CN203037263U (en) | 2012-11-30 | 2012-11-30 | Mileage modification value obtaining device based on railway track insulation joint frequency shift signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203037263U (en) |
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2012
- 2012-11-30 CN CN 201220647494 patent/CN203037263U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610045 Wuhou District, Sichuan Province, Wu Xing Road, No. 28, West Chi Valley A1-1-9 Patentee after: CHENGDU TANGYUAN ELECTRIC Co.,Ltd. Address before: 610045 Wuhou District, Sichuan Province, Wu Xing Road, No. 28, West Chi Valley A1-1-9 Patentee before: CHENGDU TANGYUAN ELECTRICAL APPLIANCE CO.,LTD. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130703 |
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| CX01 | Expiry of patent term |