CN112572501A - Railway wagon top cover monitoring device and system and railway wagon - Google Patents
Railway wagon top cover monitoring device and system and railway wagon Download PDFInfo
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- CN112572501A CN112572501A CN202011476415.8A CN202011476415A CN112572501A CN 112572501 A CN112572501 A CN 112572501A CN 202011476415 A CN202011476415 A CN 202011476415A CN 112572501 A CN112572501 A CN 112572501A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 36
- 230000006698 induction Effects 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims description 33
- 238000012544 monitoring process Methods 0.000 claims description 20
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims description 14
- 238000001514 detection method Methods 0.000 description 12
- 238000005096 rolling process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000001939 inductive effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D39/00—Wagon or like covers; Tarpaulins; Movable or foldable roofs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0018—Communication with or on the vehicle or train
- B61L15/0027—Radio-based, e.g. using GSM-R
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
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Abstract
The application provides railway freight car top cap monitoring devices, system and railway freight car. The railway wagon comprises a first top cover and a second top cover which are oppositely arranged. Railway freight car roof monitoring devices includes: the magnetic sensor comprises a first induction magnet, a second induction magnet, a magnetic resistance induction element and a control element. The first induction magnet is arranged at the first end of the first top cover. The second induction magnet is arranged on a second connecting part of the railway wagon. The magnetic resistance sensing element is arranged on the second top cover. The magnetoresistive sensing element is used for outputting a first level according to the distance between the magnetoresistive sensing element and the first sensing magnet. The magnetoresistive sensing element is further configured to output a second level according to a distance between the magnetoresistive sensing element and the second sensing magnet. The control element is electrically connected with the magnetoresistive sensing element. The control element is used for determining whether the first top cover and the second top cover are opened or closed according to the first level and the second level.
Description
Technical Field
The application relates to the technical field of railway wagons, in particular to a railway wagon top cover monitoring device, a railway wagon top cover monitoring system and a railway wagon.
Background
The railway transportation has the characteristics of high efficiency and environmental protection, and the advantages of the railway transportation can be reflected more and more along with the development of the world economy. With the rapid development of world economy, the transportation of bulk goods such as abundant minerals, grains, chemical raw materials and the like creates a solid and stable material foundation for the long-term and efficient operation of world railway freight.
The railway freight vehicle needs to check whether the roof of the railway freight vehicle is opened and closed at the start of loading and after the end of loading. At present, whether a roof of a railway freight vehicle is opened or closed is detected by checking whether the roof is opened or closed at high altitude manually, so that the efficiency is low, and potential safety hazards exist.
Disclosure of Invention
On the basis, the roof monitoring device and system for the railway freight car and the railway freight car are needed to solve the problems that whether the roof of the existing railway freight car is opened or closed is realized through manual high-altitude detection, the efficiency is low, and potential safety hazards exist.
A railway wagon top cover monitoring device is applied to a railway wagon, the railway wagon comprises a first top cover and a second top cover which are oppositely arranged, the first top cover and the second top cover are both in sliding connection with the top of the railway wagon, and the monitoring device comprises:
the first induction magnet is arranged at the first end of the first top cover, and the second end of the first top cover is fixed at the first connecting part of the railway wagon;
the second induction magnet is arranged on a second connecting part of the railway wagon, the first end of the second top cover is fixed with the second connecting part, and the second end of the second top cover is abutted against the first end of the first top cover;
the magnetic resistance sensing element is arranged on the second top cover, and is used for outputting a first level according to the distance between the magnetic resistance sensing element and the first sensing magnet and outputting a second level according to the distance between the magnetic resistance sensing element and the second sensing magnet; and
and the control element is electrically connected with the magnetic resistance sensing element and used for determining whether the first top cover and the second top cover are opened or closed according to the first level and the second level.
In one embodiment, when the distance between the magnetoresistive sensing element and the first sensing magnet is less than or equal to a first sensing distance, the first level output by the magnetoresistive sensing element is a low level, and when the distance between the magnetoresistive sensing element and the first sensing magnet is greater than the first sensing distance, the first level output by the magnetoresistive sensing element is a high level;
when the distance between the magnetoresistive sensing element and the second sensing magnet is smaller than or equal to a second sensing distance, the second level output by the magnetoresistive sensing element is a low level, and when the distance between the magnetoresistive sensing element and the second sensing magnet is greater than the second sensing distance, the second level output by the magnetoresistive sensing element is a high level.
In one embodiment, when the first level received by the control element is changed from low level to high level, and the second level is high level, it is determined that the first cover and/or the second cover have/has been opened;
when the second level is changed from a high level to a low level after the first level received by the control element is changed from a low level to a high level, it is determined that the second cover has been opened.
In one embodiment, when the second level received by the control element is changed from a low level to a high level, and the first level is a high level, it is determined that the second cover has started to close;
when the first level is changed from a high level to a low level after the second level received by the control element is changed from a low level to a high level, it is determined that the first and second covers have completed closing.
In one embodiment, the first top cover and the second top cover are both roller shutter type top covers, and the magnetic resistance sensing element is arranged at the second end of the roller shutter type top cover.
In one embodiment, the monitoring device further comprises:
and the LoRa communication element is in communication connection with the control element, and is used for being in communication connection with a vehicle-mounted gateway arranged on the railway wagon.
In one embodiment, the magnetoresistive sensing element is a tunneling magnetoresistive sensor.
A railway wagon roof monitoring system, comprising the railway wagon roof monitoring device of any one of the above embodiments; and
and the vehicle-mounted gateway is arranged on the railway wagon and is in communication connection with the control element.
In one embodiment, the railway wagon roof monitoring system further comprises:
and the upper computer is in communication connection with the vehicle-mounted gateway and is used for determining whether to trigger alarm according to whether the opening or closing state of the second top cover is finished.
In one embodiment, when the upper computer determines that the opening or closing state of the second top cover is completed, the upper computer gives an alarm through an indicator lamp.
A railway wagon comprises the railway wagon roof monitoring device in any one of the above embodiments.
Compared with the prior art, the railway wagon top cover monitoring device, the railway wagon top cover monitoring system and the railway wagon are characterized in that the first induction magnet is arranged at the first end of the first top cover, the second end of the first top cover is fixed at the first connecting part of the railway wagon, and the second induction magnet is arranged at the second connecting part opposite to the first connecting part. The first end of the second top cover is fixed with the second connecting portion, and the second end of the second top cover is abutted to the first end of the first top cover. And arranging the magnetic resistance sensing element on the second top cover. Outputting a first level by the magnetoresistive sensing element according to a distance between the magnetoresistive sensing element and the first sensing magnet, and outputting a second level by the magnetoresistive sensing element according to a distance between the magnetoresistive sensing element and the second sensing magnet. The control element determines whether the first top cover and the second top cover are opened or closed according to the first level and the second level output by the magnetic resistance sensing element, so that whether the first top cover and the second top cover are opened or closed is detected, the detection efficiency is improved, and potential safety hazards caused by manual high-altitude detection are avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of a wagon top cover monitoring device according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram illustrating an application of a wagon cover monitoring device according to an embodiment of the present disclosure;
fig. 3 is a block circuit diagram of a wagon roof monitoring device according to an embodiment of the present disclosure;
FIG. 4 is a block diagram of a railway wagon roof monitoring system according to an embodiment of the present disclosure;
fig. 5 is a block circuit diagram of a railway wagon according to an embodiment of the present application.
Description of reference numerals:
10. a rail wagon roof monitoring device; 100. a first induction magnet; 101. a first connection portion; 102. a second connecting portion; 20. a rail wagon; 21. a first top cover; 22. a second top cover; 200. a second induction magnet; 30. a rail wagon roof monitoring system; 300. a magnetoresistive sensing element; 400. a control element; 500. a LoRa communication element; 501. a power supply element; 600. a vehicle-mounted gateway; 700. an upper computer; 701. and an indicator light.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.
The numbering of the components as such, e.g., "first", "second", etc., is used herein for the purpose of describing the objects only, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, an embodiment of the present application provides a railway wagon roof monitoring device 10 for use with a railway wagon 20. Specifically, the railway wagon bottom door monitoring device 10 can be applied to a 25t axle load aluminum alloy coal hopper wagon in the railway wagon 20.
The railway wagon 20 comprises a first roof 21 and a second roof 22 arranged opposite each other. The first roof 21 and the second roof 22 are slidably connected to the top of the railway wagon 20. The top of the railway wagon 20 is oppositely provided with a first connecting part 101 and a second connecting part 102. That is, in the traveling direction of the railway wagon 20, the first connection portion 101 and the second connection portion 102 are respectively disposed at both sides of the top of the railway wagon 20. In one embodiment, the second end of the first cap 21 is fixedly connected to the first connecting portion 101, and the first end of the second cap 22 is fixedly connected to the second connecting portion 102. The first end of the first cap 21 abuts the second end of the second cap 22.
The railway wagon roof monitoring device 10 comprises: a first induction magnet 100, a second induction magnet 200, a magnetoresistive induction element 300, and a control element 400. The first induction magnet 100 is disposed at a first end of the first cap 21. The second induction magnet 200 is disposed at the second connection portion 102 of the railway wagon 20. The magneto-resistive sensing element 300 is disposed on the second cap 22. The magneto-resistive sensing element 300 is configured to output a first level according to a distance between the magneto-resistive sensing element 300 and the first sensing magnet 100. The magneto-resistive sensing element 300 is further configured to output a second level according to a distance between the magneto-resistive sensing element 300 and the second sensing magnet 200. The control element 400 is electrically connected to the magnetoresistive sensing element 300. The control element 400 is configured to determine whether the first cover 21 and the second cover 22 are opened or closed according to the first level and the second level.
It is understood that the specific material of the first induction magnet 100 is not limited as long as it has a function of disturbing the magnetic field strength. In one embodiment, the first induction magnet 100 may be a common magnet. The first induction magnet 100 may also be a composite material containing a magnetic material. Similarly, the second induction magnet 200 may be a general magnet or a composite material containing a magnetic material. In one embodiment, the first and second induction magnets 100 and 200 may be made of the same material.
It is understood that the manner of disposing the first induction magnet 100 at the first end of the first top cover 21 is not limited, as long as the first induction magnet 100 is fixed to the first end of the first top cover 21. In one embodiment, the first induction magnet 100 may be fixed between the first end of the first cap 21 by a snap fit. The first induction magnet 100 may be fixed to the first end of the first top cover 21 by other means (e.g., bolts, etc.).
It is understood that the manner of disposing the second inductive magnet 200 on the second connection portion 102 is not limited, as long as the second inductive magnet 200 is fixed to the second connection portion 102. In one embodiment, the second induction magnet 200 may be fixed to the second connection portion 102 by a snap. The second induction magnet 200 may be fixed to the second connection portion 102 by other means (e.g., bolts, etc.). In the above manner, the first inductive magnet 100 may be fixed to the top of the railway wagon 20, one end of the first top cover 21 close to the second top cover 22 is fixed, and the second inductive magnet 200 may be fixed to one side of the top of the railway wagon 20 close to the second connecting portion 102.
It is to be understood that the manner in which the magnetoresistive sensing element 300 is disposed on the second cap 22 is not limited as long as the magnetoresistive sensing element 300 has a function of outputting a first level according to the distance between the magnetoresistive sensing element 300 and the first sensing magnet 100 and outputting a second level according to the distance between the magnetoresistive sensing element 300 and the second sensing magnet 200. In one embodiment, the magneto-resistive sensing element 300 may be secured to the second cap 22 by a mounting plate. The magneto-resistive sensing element 300 may also be secured to the second cap 22 by a snap fit.
In one embodiment, the magnetoresistive sensing element 300 may be fixed to any one end of the second cap 22, and the other end of the second cap 22 is fixedly connected to the second connection portion 102. For example, the second cover 22 may be a roll-up cover. Thus, the first end of the roller shutter top cover can be fixedly connected with the second connecting portion 102, and the second end of the roller shutter top cover can be abutted against the first end of the first top cover 21. Meanwhile, the magneto-resistive sensing element 300 may be disposed at a second end of the rolling shutter type top cover. Thus, when the rolling roof is in the retracted state, the second end of the rolling roof is located at a side of the top of the railway wagon 20 close to the second connecting portion 102. And when the rolling shutter type top cover is in the unfolding state, the second end of the rolling shutter type top cover can be abutted against the first end of the first top cover 21.
In one embodiment, the first cover 21 may be a roll-up cover. For example, a first end of the roller shutter top cover may be fixedly connected to the first connecting portion 101, and a second end of the roller shutter top cover may abut against a second end of the second top cover 22. When the rolling roof is in the retracted state, the second end of the rolling roof is located at a side of the top of the railway wagon 20 close to the first connection portion 101. And when the roller shutter top cover is in the unfolded state, the second end of the roller shutter top cover can be abutted against the second end of the second top cover 22.
It is understood that the specific structure of the magneto-resistive sensing element 300 is not limited as long as it has a function of outputting a first level according to the distance between the magneto-resistive sensing element 300 and the first sensing magnet 100 and outputting a second level according to the distance between the magneto-resistive sensing element 300 and the second sensing magnet 200. In one embodiment, the magnetoresistive sensing element 300 can be a Tunneling Magnetoresistive (TMR) sensor.
Specifically, a first level may be output according to a distance between the magnetoresistive sensing element 300 and the first sensing magnet 100, and a second level may be output according to a distance between the magnetoresistive sensing element 300 and the second sensing magnet 200 by the TMR sensor. By adopting the TMR sensor, the railway wagon 20 can normally run under different temperature conditions of high temperature and low temperature, and the stability under the complex environment is improved. And meanwhile, the TMR sensor is used, so that the overall power consumption can be reduced. The magneto-resistive sensing element 300 is a non-contact sensor, which can avoid the problems of mechanical wear and the like caused by the use of other switch sensors.
Wherein the first level is a high level or a low level. Specifically, when the distance between the magnetoresistive sensing element 300 and the first sensing magnet 100 is less than or equal to a first sensing distance, the first level output by the magnetoresistive sensing element 300 is a low level. When the distance between the magneto-resistive sensing element 300 and the first sensing magnet 100 is greater than the first sensing distance, the first level output by the magneto-resistive sensing element 300 is a high level. In one embodiment, the first sensing distance may be set according to actual requirements, for example, the range of the first sensing distance may be 0-5 cm.
Likewise, the second level is a high level or a low level. Specifically, when the distance between the magnetoresistive sensing element 300 and the second sensing magnet 200 is less than or equal to a second sensing distance, the second level output by the magnetoresistive sensing element 300 is a low level. When the distance between the magneto-resistive sensing element 300 and the second sensing magnet 200 is greater than the second sensing distance, the second level output by the magneto-resistive sensing element 300 is a high level. In one embodiment, the second sensing distance may also be set according to actual requirements, for example, the range of the second sensing distance may be 0-5 cm. In one embodiment, the first sensing distance and the second sensing distance may be set to the same value range.
It is to be understood that the specific structure of the control member 400 is not limited as long as it has a function of determining whether the first cap 21 and the second cap 22 are opened or closed according to the first level and the second level. In one embodiment, the control element 400 may be an MCU (micro control unit). The control element 400 may also be an integrated control chip. Whether the first cover 21 and the second cover 22 are opened or closed is determined according to the first level and the second level by the control element 400.
In one embodiment, it is assumed that the initial state of the first and second caps 21 and 22 is a fully closed state. That is, when the first cap 21 and the second cap 22 are in the initial state, the first level output from the magnetoresistive sensing element 300 to the control element 400 is the low level, and the second level is the high level. When the first level received by the control element 400 is changed from a low level to a high level, and the second level is a high level, it is determined that the first cover 21 and/or the second cover 22 have/has been opened. That is, the distance between the magnetoresistive sensing element 300 and the first sensing magnet 100 exceeds the first sensing distance, and the distance between the magnetoresistive sensing element 300 and the second sensing magnet 200 also exceeds the second sensing distance. That is, at this time, the first end of the first roof 21 slides from the second connecting portion 102 to the first connecting portion 101 in the traveling direction of the railway wagon 20, and/or the second end of the second roof 22 slides from the first connecting portion 101 to the second connecting portion 102 in the traveling direction of the railway wagon 20.
When the second level is also changed from the high level to the low level after the first level received by the control element 400 is changed from the low level to the high level, it is determined that the second cover 22 has been opened. That is, the distance between the magnetoresistive sensing element 300 and the first sensing magnet 100 exceeds the first sensing distance, and the distance between the magnetoresistive sensing element 300 and the second sensing magnet 200 is within the range of the second sensing distance. That is, the first end of the second cap 22 has slid to the second connecting portion 102 at this time. Thus, the control unit 400 can determine whether the second cover 22 is completely opened in the above manner.
In one embodiment, the number of magnetoresistive sensing elements 300 can be two. One of the magnetoresistive sensing elements 300 may be disposed on the second cover 22, and the other magnetoresistive sensing element 300 (for the sake of distinction, the magnetoresistive sensing element 300 is temporarily designated as a1) may be disposed on the first cover 21. While a third sensing magnet corresponding to the magnetoresistive sensing element 300(a1) may be disposed at the first connection part 101. Whether the first cap 21 is completely opened may thus be determined by the magnetoresistive sensing element 300(a1) in cooperation with the third sensing magnet.
Specifically, whether the first top cover 21 is completely opened may be determined by a distance between the magnetoresistive sensing element 300(a1) and the third sensing magnet. For example, when the distance between the magnetoresistive sensing element 300(a1) and the third sensing magnet is less than or equal to a third sensing distance, the third level output by the magnetoresistive sensing element 300(a1) is a low level. When the distance between the magneto-resistive sensing element 300 and the third sensing magnet is greater than the third sensing distance, the third level output by the magneto-resistive sensing element 300(a1) is a high level. In one embodiment, the third sensing distance may also be set according to actual requirements, for example, the third sensing distance may range from 0 cm to 5 cm. In one embodiment, the third sensing distance and the second sensing distance may be set to the same value range.
When the third level is also changed from the high level to the low level after the first level received by the control element 400 is changed from the low level to the high level, it is determined that the first cover 21 has been opened. That is, when the distance between the magneto-resistive sensing element 300(a1) and the third sensing magnet exceeds the third sensing distance, the distance between the magneto-resistive sensing element 300(a1) and the third sensing magnet is within the range of the third sensing distance. That is, the first end of the first cap 21 has slid to the first connecting portion 101 at this time. Thus, the control unit 400 can determine whether the first cover 21 is completely opened in the above manner.
In one embodiment, when the second level received by the control element 400 is changed from a low level to a high level, and the first level is a high level, it is determined that the second cover 22 has activated the closing. That is, the distance between the magnetoresistive sensing element 300 and the second sensing magnet 200 exceeds the second sensing distance, and the distance between the magnetoresistive sensing element 300 and the first sensing magnet 100 also exceeds the first sensing distance. That is, at this time, the second end of the second roof 22 slides from the second connecting portion 102 to the first connecting portion 101 in the traveling direction of the railway wagon 20.
Likewise, when the third level received by the control element 400 is changed from a low level to a high level, and the first level is a high level, it is determined that the first cover 21 has activated the closing. That is, the distance between the magnetoresistive sensing element 300(a1) and the third sensing magnet exceeds the third sensing distance, and the distance between the magnetoresistive sensing element 300 and the first sensing magnet 100 also exceeds the first sensing distance. That is, at this time, the first end of the first roof 21 slides from the first connecting portion 101 to the second connecting portion 102 in the traveling direction of the railway wagon 20.
When the first level is also changed from the high level to the low level after the second level received by the control element 400 is changed from the low level to the high level, it is determined that the first cover 21 and the second cover 22 have completed closing. That is, the distance between the magnetoresistive sensing element 300 and the second sensing magnet 200 exceeds the second sensing distance, and the distance between the magnetoresistive sensing element 300 and the first sensing magnet 100 is within the range of the first sensing distance. That is, the second end of the second cap 22 has now slid into abutment with the first end of the first cap 21. In this way, the control unit 400 can determine whether the first cover 21 and the second cover 22 are completely closed in the above manner.
In this embodiment, the first induction magnet 100 is disposed at the first end of the first top cover 21, and the second induction magnet 200 is disposed at the second connection portion 102 disposed opposite to the first connection portion 101. The magneto-resistive sensing element 300 is disposed on the second cap 22. A first level is output by the magnetoresistive sensing element 300 according to a distance between the magnetoresistive sensing element 300 and the first sensing magnet 100, and a second level is output according to a distance between the magnetoresistive sensing element 300 and the second sensing magnet 200. The control element 400 determines whether the first top cover 21 and the second top cover 22 are opened or closed according to the first level and the second level, so that whether the first top cover 21 and the second top cover 22 are opened or closed is detected, detection efficiency is improved, and potential safety hazards caused by manual high-altitude detection are avoided.
Referring to fig. 3, in one embodiment, the railway wagon roof monitoring device 10 further includes: the LoRa communication element 500. The LoRa communication element 500 is communicatively coupled to the control element 400. The LoRa communication element 500 is configured to be communicatively connected to an on-board gateway 600 disposed on the railway wagon 20. In one embodiment, the LoRa communication element 500 may be replaced with other types of communication elements (e.g., 4G/5G wireless communication module, WiFi/bluetooth/ANT/ZigBee wireless communication module, etc.). When the control unit 400 determines that the first cover 21 and the second cover 22 have been opened or closed, monitoring information (that is, the first cover 21 and the second cover 22 have been opened or closed) may be sent to the on-board gateway 600 through the LoRa communication unit 500, so that the on-board gateway 600 uploads the monitoring information to a monitoring platform (such as an upper computer). In this embodiment, the control element 400 uploads monitoring information to the on-board gateway 600 through the LoRa communication element 500. By adopting the communication mode realized by the LoRa communication element 500, the overall power consumption can be further reduced when the transmission distance is fixed.
In one embodiment, the railway wagon roof monitoring device 10 further comprises: a power supply element 501. The power supply element 501 is electrically connected to the magnetoresistive sensing element 300, the control element 400, and the LoRa communication element 500, respectively. In one embodiment, the specific structure of the power supply element 501 may be selected according to actual requirements, for example, the power supply element 501 may be a dry battery, a storage battery, or the like.
Referring to fig. 4, an embodiment of the present application provides a railway wagon roof monitoring system 30. The wagon roof monitoring system 30 comprises the wagon roof monitoring device 10 and the on-board gateway 600 in any one of the above embodiments. The vehicle-mounted gateway 600 is disposed in the railway wagon 20. The onboard gateway 600 is communicatively connected to the control unit 400.
In one embodiment, the vehicle gateway 600 may adopt a conventional vehicle gateway with an information processing function. In one embodiment, the manner of disposing the on-board gateway 600 on the railway wagon 20 is not limited, as long as the on-board gateway 600 is secured to the railway wagon 20. In one embodiment, the on-board gateway 600 may be secured to the rail wagon 20 by screws. The on-board gateway 600 may also be fastened to the railway wagon 20 by a snap. In one embodiment, the onboard gateway 600 may be communicatively coupled to the control element 400 via an LoRa communication element 500. By adopting the communication mode realized by the LoRa communication element 500, the overall power consumption of the wagon roof monitoring system 30 can be further reduced under the condition of a certain transmission distance.
In the wagon top cover monitoring system 30 of this embodiment, through the cooperation between the vehicle-mounted gateway 600 and the wagon top cover monitoring device 10, whether the first top cover 21 and the second top cover 22 are opened or closed can be detected, so that not only is the detection efficiency improved, but also potential safety hazards caused by manual high-altitude detection are avoided.
In one embodiment, the railway wagon roof monitoring system 30 further comprises: and an upper computer 700. The upper computer 700 is in communication connection with the vehicle-mounted gateway 600. The upper computer 700 is used for determining whether to trigger an alarm according to whether the opening or closing state of the second top cover 22 is completed. In one embodiment, the communication mode between the upper computer 700 and the vehicle-mounted gateway 600 is not limited, as long as the communication between the upper computer 700 and the vehicle-mounted gateway 600 is ensured. In one embodiment, the upper computer 700 and the vehicle-mounted gateway 600 may communicate with each other in a 4G/5G communication manner. The upper computer 700 and the vehicle-mounted gateway 600 can also adopt other communication modes to realize communication, such as WiFi, Bluetooth and the like.
The upper computer 700 is used for determining whether to trigger an alarm according to whether the opening or closing state of the second top cover 22 is completed. Specifically, when the control element 400 determines that the second cover 22 has been opened or closed, the control element 400 sends monitoring information to the upper computer 700 through the vehicle gateway 600. When the upper computer 700 determines that the second top cover 22 is opened or closed according to the monitoring information, the upper computer 700 gives an alarm through the indicator lamp 701. Namely, the indicator lamp 701 gives an alarm to prompt an operator that the truck top cover 301 is opened or closed.
In this embodiment, through host computer 700 with the cooperation of pilot lamp 701 can realize right whether second top cap 22 is opened or is closed and detect, has not only improved detection efficiency, has still avoided adopting the artifical high altitude to detect the potential safety hazard that exists.
Referring to fig. 5, another embodiment of the present application provides a railway wagon 20. The railway wagon 20 comprises the railway wagon roof monitoring device 10 of any one of the above embodiments. In the railway wagon 20 described in this embodiment, whether the first top cover 21 and the second top cover 22 are opened or closed is detected by the railway wagon top cover monitoring device 10, so that not only is the detection efficiency improved, but also potential safety hazards caused by manual high-altitude detection are avoided.
In summary, the present application provides the second induction magnet 200 at the second connecting portion 102 opposite to the first connecting portion 101 by providing the first induction magnet 100 at the first end of the first top cover 21. The magneto-resistive sensing element 300 is disposed on the second cap 22. A first level is output by the magnetoresistive sensing element 300 according to a distance between the magnetoresistive sensing element 300 and the first sensing magnet 100, and a second level is output according to a distance between the magnetoresistive sensing element 300 and the second sensing magnet 200. The control element 400 determines whether the first top cover 21 and the second top cover 22 are opened or closed according to the first level and the second level, so that whether the first top cover 21 and the second top cover 22 are opened or closed is detected, detection efficiency is improved, and potential safety hazards caused by manual high-altitude detection are avoided.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A railway wagon roof monitoring device, applied to a railway wagon (20), wherein the railway wagon (20) comprises a first roof (21) and a second roof (22) which are oppositely arranged, and the first roof (21) and the second roof (22) are both slidably connected with the top of the railway wagon (20), the monitoring device comprises:
a first induction magnet (100) disposed at a first end of the first head cover (21), a second end of the first head cover (21) being fixed to a first connection portion (101) of the railway wagon (20);
the second induction magnet (200) is arranged on a second connecting part (102) of the railway wagon (20), a first end of the second top cover (22) is fixed with the second connecting part (102), and a second end of the second top cover (22) is abutted with a first end of the first top cover (21);
a magnetoresistive sensing element (300) disposed on the second cap (22), the magnetoresistive sensing element (300) being configured to output a first level according to a distance between the magnetoresistive sensing element (300) and the first sensing magnet (100), the magnetoresistive sensing element (300) being further configured to output a second level according to a distance between the magnetoresistive sensing element (300) and the second sensing magnet (200); and
a control element (400) electrically connected to the magnetoresistive sensing element (300) for determining whether the first cap (21) and the second cap (22) are opened or closed according to the first level and the second level.
2. The railroad freight car roof monitoring device of claim 1, wherein the first level output by the magnetoresistive sensing element (300) is a low level when the distance between the magnetoresistive sensing element (300) and the first sensing magnet (100) is less than or equal to a first sensing distance, and the first level output by the magnetoresistive sensing element (300) is a high level when the distance between the magnetoresistive sensing element (300) and the first sensing magnet (100) is greater than the first sensing distance;
when the distance between the magnetoresistive sensing element (300) and the second sensing magnet (200) is less than or equal to a second sensing distance, the second level output by the magnetoresistive sensing element (300) is a low level, and when the distance between the magnetoresistive sensing element (300) and the second sensing magnet (200) is greater than the second sensing distance, the second level output by the magnetoresistive sensing element (300) is a high level.
3. A railway wagon roof monitoring device as claimed in claim 2, wherein it is determined that the first roof (21) and/or the second roof (22) has been opened when the first level received by the control element (400) is changed from a low level to a high level and the second level is a high level;
when the second level is changed from a high level to a low level after the first level received by the control element (400) is changed from a low level to a high level, it is determined that the second cover (22) has been opened.
4. A railway wagon roof monitoring device as claimed in claim 2, wherein when the second level received by the control element (400) is changed from a low level to a high level and the first level is a high level, it is determined that the second roof (22) has started to close;
when the first level is changed from a high level to a low level after the second level received by the control element (400) is changed from a low level to a high level, it is determined that the first cover (21) and the second cover (22) have completed closing.
5. A railway wagon roof monitoring device as claimed in claim 1, wherein the first roof (21) and the second roof (22) are both roller shutters, and the magnetic resistance sensing element (300) is disposed at a second end of the second roof (22).
6. A railway wagon roof monitoring device as claimed in claim 1, wherein the monitoring device further comprises:
the system comprises a LoRa communication element (500) which is in communication connection with the control element (400), wherein the LoRa communication element (500) is used for being in communication connection with an on-board gateway (600) arranged on the railway wagon (20).
7. A railway wagon roof monitoring device as claimed in any one of claims 1-6, wherein the magneto-resistive sensing element (300) is a tunnel magneto-resistive sensor.
8. A railway wagon roof monitoring system, comprising a railway wagon roof monitoring device as claimed in any one of claims 1-7; and
and the vehicle-mounted gateway (600) is arranged on the railway wagon (20) and is in communication connection with the control element (400).
9. The railway wagon roof monitoring system of claim 8, further comprising:
and the upper computer (700) is in communication connection with the vehicle-mounted gateway (600) and is used for determining whether to trigger alarm or not according to whether the opening or closing state of the second top cover (22) is finished or not.
10. A railway wagon roof monitoring system as claimed in claim 9, wherein the upper computer (700) gives an alarm through an indicator lamp (701) when the upper computer (700) determines that the opening or closing state of the second roof (22) is completed.
11. A railway wagon comprising a wagon roof monitoring device as claimed in any one of claims 1-7.
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| CN202011476415.8A CN112572501B (en) | 2020-12-15 | 2020-12-15 | Railway wagon top cover monitoring device and system and railway wagon |
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| CN202011476415.8A CN112572501B (en) | 2020-12-15 | 2020-12-15 | Railway wagon top cover monitoring device and system and railway wagon |
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| CN112572501B CN112572501B (en) | 2022-04-29 |
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| CN112572501B (en) | 2022-04-29 |
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