CN116750043A - Track safety protection circuit and system - Google Patents
Track safety protection circuit and system Download PDFInfo
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- CN116750043A CN116750043A CN202310992013.0A CN202310992013A CN116750043A CN 116750043 A CN116750043 A CN 116750043A CN 202310992013 A CN202310992013 A CN 202310992013A CN 116750043 A CN116750043 A CN 116750043A
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- 238000001514 detection method Methods 0.000 claims abstract description 80
- 238000012544 monitoring process Methods 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 4
- 238000005339 levitation Methods 0.000 abstract description 10
- 230000003993 interaction Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 108010066114 cabin-2 Proteins 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/06—Control, warning or like safety means along the route or between vehicles or trains for warning men working on the route
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The application relates to the field of magnetic levitation tracks, and discloses a track safety protection circuit and a track safety protection system, wherein the track safety protection circuit comprises: the system comprises a control unit, a first alarm unit, an electromagnetic detection coil and a human-computer interaction unit; the electromagnetic detection coils are arranged on two sides of the power track to acquire magnetic field intensity signals of the power track; the man-machine interaction unit is connected with the control unit to set alarm conditions for the control unit so as to change the alarm conditions of the power track according to the requirement; the control unit is connected with the first alarm unit and the electromagnetic detection coil to acquire a magnetic field intensity signal, and when the magnetic field intensity signal meets the preset condition, the first alarm unit is controlled to be connected with the power supply. According to the scheme provided by the application, the electromagnetic detection coil arranged at the track is used for acquiring the magnetic field intensity signal of the power track, the control unit is used for judging the intensity of the magnetic field intensity signal, and the first alarm unit is controlled to give an alarm, so that the danger caused by misoperation or untimely operation of management personnel is prevented.
Description
Technical Field
The application relates to the field of magnetic levitation tracks, in particular to a track safety protection circuit and a track safety protection system.
Background
The high-speed magnetic levitation train needs to rely on electric energy to construct a levitation magnetic field so as to ensure the normal operation of the train. In a specific implementation, a mode of arranging power rails on two sides of a magnetic levitation track is generally selected to supply power for a magnetic field. Because the power track is electrified, in order to ensure personal safety of on-site train debugging operators, the operators are required to be reminded of being far away from the power track when the power track is electrified.
Because the track length of the power track and the current intensity in the track are large, the current value in the power track cannot be directly detected, and at present, an alarm unit of the power track is usually started manually by a worker when the power track is electrified. This method is inefficient and may be dangerous due to operator error or untimely.
Therefore, how to provide a high-efficiency and accurate track safety protection circuit so that a worker can accurately master the power track power-on state and keep away in time is a problem to be solved by the person skilled in the art.
Disclosure of Invention
The application aims to provide a track safety protection circuit and a track safety protection system, so that workers can be timely reminded of keeping away when a power track is electrified, and the safety of a magnetic levitation track is improved.
In order to solve the above technical problems, the present application provides a track safety protection circuit, comprising:
the system comprises a control unit, a state display unit, a monitoring unit and at least two electromagnetic detection coils;
each electromagnetic detection coil is respectively arranged at two sides of a power track corresponding to each carriage so as to acquire a magnetic field intensity signal of each power track;
the state display unit is connected with the electromagnetic detection coils, so as to determine detection current values in target power tracks corresponding to the electromagnetic detection coils according to the magnetic field intensity signals, and generate display signals according to the detection current values;
the monitoring unit is used for collecting the display signals and sending the display signals to the control unit;
and the control unit generates track power-on information according to the display signal and sends the track power-on information to the mobile terminal.
Preferably, the track power-on information includes: the power-on information and the power-on trend information are in real time;
correspondingly, the control unit generates the track power-on information according to the display signal, and the track power-on information comprises:
acquiring the display signal and determining the level information of the display signal;
determining the real-time power-on information according to the level information, wherein the real-time power-on information comprises power-on car information and power cabinet current information;
and determining the power-on trend information according to the real-time power-on information and the train power.
Preferably, determining the detection current value from the magnetic field strength signal includes:
acquiring the magnetic field strength signal;
and determining the detection current value corresponding to the magnetic field intensity signal according to a preset magnetic field current corresponding relation.
Preferably, the status display unit comprises a buzzer and an indicator light;
when the magnetic field strength signal is higher than a first threshold value and lower than a second threshold value, the buzzer and the indicator lamp are operated at a first frequency;
when the magnetic field strength signal is higher than a second threshold value, the buzzer and the indicator lamp both operate at a second frequency.
Preferably, the number of the status display units is a plurality;
each state display unit corresponds to the power track corresponding to each carriage.
Preferably, the monitoring unit comprises a camera and a pickup;
the camera and the pickup are respectively used for collecting signals of the indicator lamp and the buzzer, so that the control unit can acquire working frequency of each state display unit.
Preferably, two electromagnetic detection coils are arranged in the same detection area of the power track.
Preferably, the device further comprises an alarm unit;
the alarm unit is connected with the control unit and is used for sending an alarm to a manager when the control unit detects that the difference value of the magnetic field intensity signals of the two electromagnetic detection coils in the same detection area is larger than a detection threshold value.
Preferably, the control unit is connected with the mobile terminal through a WiFi communication protocol.
In order to solve the technical problem, the application also provides a track safety protection system which comprises the track safety protection circuit.
The application provides a track safety protection circuit, which comprises: the system comprises a control unit, a state display unit, a monitoring unit and at least one electromagnetic detection coil; each electromagnetic detection coil is respectively arranged at two sides of a power track corresponding to each carriage so as to acquire magnetic field intensity signals of each power track; the state display unit is connected with the electromagnetic detection coils to determine detection current values in the target power tracks corresponding to the electromagnetic detection coils according to the magnetic field intensity signals, and generates display signals according to the detection current values, so that management staff can conveniently judge whether any power track is electrified according to the display signals. The monitoring unit is used for collecting the display signals and sending the display signals to the control unit; the control unit generates track power-on information according to the display signal and sends the track power-on information to the mobile terminal so that management staff can grasp the power-on state of the whole track. Therefore, in the technical scheme provided by the application, the current value in the power rail is judged through the electromagnetic detection coil, so that danger caused by misoperation of a power-on person is prevented, and meanwhile, the control unit can also generate track power-on information according to the display signal acquired by the monitoring unit, so that the worker can master the real-time power-on state and power-on trend of the whole track, and the safety is further improved.
In addition, the application also provides a track safety protection system which comprises the track safety protection circuit, and the track safety protection circuit has the same effect.
Drawings
For a clearer description of embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described, it being apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a block diagram of a track safety protection circuit according to an embodiment of the present application;
the reference numerals are as follows: the device comprises a control unit 1, a state display unit 2, a monitoring unit 3 and an electromagnetic detection coil 4.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present application.
The application provides a track safety protection circuit and a track safety protection system, which can remind workers to keep away in time when a power track is electrified, so that the safety of a magnetic levitation track is improved.
In order to better understand the aspects of the present application, the present application will be described in further detail with reference to the accompanying drawings and detailed description. Fig. 1 is a block diagram of a track safety protection circuit according to an embodiment of the present application, as shown in fig. 1, the circuit includes:
a control unit 1, a state display unit 2, a monitoring unit 3 and at least two electromagnetic detection coils 4;
each electromagnetic detection coil 4 is respectively arranged at two sides of the power track corresponding to each carriage so as to acquire magnetic field intensity signals of each power track;
the state display unit 2 is connected with the electromagnetic detection coils 4 to determine detection current values in the target power track corresponding to each electromagnetic detection coil 4 according to the magnetic field intensity signals, and generates display signals according to the detection current values;
the monitoring unit 3 is used for collecting display signals and sending the display signals to the control unit 1;
the control unit 1 generates track power-on information according to the display signal and transmits the track power-on information to the mobile terminal.
In a specific implementation, the electromagnetic detection coils 4 include a plurality of electromagnetic detection coils 4, and each electromagnetic detection coil 4 is disposed at two sides of the power track to acquire the magnetic field intensity signal intensity in the power track and send the magnetic field intensity signal to the control unit 1, so that the control unit 1 compares the magnetic field intensity signal with a magnetic field threshold value pre-stored or set by a man-machine interaction device, and determines the current value inside the power track according to the magnetic field intensity signal value, thereby determining whether the power track is electrified.
In a specific implementation, human-machine interaction means may also be included for setting parameter information of the status display unit 2, e.g. a first threshold value, a second threshold value, etc. of the magnetic field strength signal, and for setting other software programs of the control unit 1. It will be appreciated that the human interaction device may be a keyboard or a touch screen.
The control unit 1 may be provided separately, or may be an electronic control unit 1 using the magnetic levitation track itself, so that the hardware cost can be reduced.
The state display unit 2 has the function of alarming and prompting the power rail to be conducted, and the state display unit 2 is controlled by the control unit 1 to realize automatic alarming, so that people do not need to frequently watch, the labor cost is saved, and the timeliness is good. It will be appreciated that the connection between the status display unit 2 and the control unit 1 may be a wired connection or a wireless connection.
The status display unit 2 may include a buzzer and an indicator lamp; when the magnetic field intensity signal is higher than a first threshold value and lower than a second threshold value, the buzzer and the indicator lamp are operated at a first frequency; when the magnetic field strength signal is higher than a second threshold value, the buzzer and the indicator lamp both work at a second frequency. In order to improve the accuracy of detection, the number of the status display units 2 is plural; each status display unit 2 corresponds to a power track corresponding to each car. Correspondingly, the monitoring unit 3 comprises a camera and a pickup; the camera and the pickup are respectively used for collecting signals of the indicator lamp and the buzzer so that the control unit 1 can acquire the working frequency of each state display unit 2.
The application provides a track safety protection circuit, which comprises: the system comprises a control unit, a state display unit, a monitoring unit and at least one electromagnetic detection coil; each electromagnetic detection coil is respectively arranged at two sides of a power track corresponding to each carriage so as to acquire magnetic field intensity signals of each power track; the state display unit is connected with the electromagnetic detection coils to determine detection current values in the target power tracks corresponding to the electromagnetic detection coils according to the magnetic field intensity signals, and generates display signals according to the detection current values, so that management staff can conveniently judge whether any power track is electrified according to the display signals. The monitoring unit is used for collecting the display signals and sending the display signals to the control unit; the control unit generates track power-on information according to the display signal and sends the track power-on information to the mobile terminal so that management staff can grasp the power-on state of the whole track. Therefore, in the technical scheme provided by the application, the current value in the power rail is judged through the electromagnetic detection coil, so that danger caused by misoperation of a power-on person is prevented, and meanwhile, the control unit can also generate track power-on information according to the display signal acquired by the monitoring unit, so that the worker can master the real-time power-on state and power-on trend of the whole track, and the safety is further improved.
In a specific implementation, the track power-on comprises: and the power-on information and the power-on trend information are in real time. Correspondingly, the control unit 1 generates the track power-on information according to the display signal, which comprises the following steps: acquiring a display signal and determining level information of the display signal; determining real-time power-on information according to the level information, wherein the real-time power-on information comprises power-on car information and power cabinet current information; and determining power-on trend information according to the real-time power-on information and the train power.
As a preferred embodiment, determining the detection current value from the magnetic field strength signal comprises: acquiring a magnetic field strength signal; and determining a detection current value corresponding to the magnetic field intensity signal according to a preset magnetic field current corresponding relation.
As a preferred embodiment, the electromagnetic detection coils 4 include a plurality of electromagnetic detection coils 4, and each electromagnetic detection coil 4 is disposed on both sides of the power track.
In a specific implementation, the electromagnetic detection coils 4 are arranged on two sides of the track, and the interval between the electromagnetic detection coils 4 is typically 3 meters. It can be understood that, because the magnetic field strength signal in the electromagnetic detection coil 4 is weak and has interference, in order to facilitate the control unit 1 to judge the current value in the power track according to the magnetic field strength signal, a signal processing unit is also required to be provided, and the signal processing unit comprises a signal amplifying circuit and a filtering circuit; the signal processing unit is connected with the electromagnetic detection coil 4 to acquire an initial magnetic field intensity signal, and performs amplification operation and filtering operation on the initial magnetic field intensity signal to acquire a magnetic field intensity signal; the signal processing unit is also connected to the control unit 1 for transmitting an initial magnetic field strength signal to the control unit 1.
In order to ensure stable signal transmission and prevent electromagnetic interference caused by the magnetic levitation track, the control unit 1 is connected with the electromagnetic detection coil 4, and the control unit 1 is connected with the state display unit 2 through cables.
It can be understood that, because the current loop of the power track is fixed, the power-on condition of the train can be judged by judging the current value in the power track, and the state display unit 2 is controlled to output different alarm signals according to different power-on conditions of the train.
In a specific implementation, the status display unit 2 comprises a buzzer and an indicator light. The operating frequency of the status display unit 2 (speaker sound emission size and warning lamp blinking speed) is proportional to the detected current value in the power track. For example: when the train is electrified on the track through the power rail, the magnetic field strength signal strength is lower than a first threshold value, the electromagnetic detection coil 4 can detect a direct-current magnetic field emitted by the power rail, the control unit 1 acquires the magnetic field strength signal so as to judge that the train is electrified, and controls each state display unit 2 to be connected with a first power supply so as to make the buzzer and the indicator light sound and flash at a first frequency; when the magnetic field intensity signal is higher than the first threshold value and lower than the second threshold value, each state display unit 2 is connected with a second power supply so that the buzzer and the indicator lamp work at a second frequency; when the magnetic field intensity signal is higher than the second threshold value, each state display unit 2 is connected with a third power supply so that the buzzer and the indicator lamp both work at a third frequency.
Furthermore, the track safety protection circuit provided by the application can also be used for detecting the power-on state change condition of the carriage in the track. Since the resistance in the power track increases after the car is powered up, the change in the power state of the train car can be determined by the amount of current reduction. As shown in fig. 1: when only 1 carriage of the train (5-group) is electrified, the current flowing through the power rail is 550A, when 2 carriages are electrified, the current flowing through the power rail is 1100A, and so on. The warning lamp and the loudspeaker in the area where the carriage 1 is positioned start to flash and sound at the 2-level speed; the warning lights, speakers in the area of the cabin 2 begin to flash and sound at a level 1 rate; and by analogy, the power-on state of each carriage, the power consumption of the train and the number of the electrified carriages can be judged by flashing and the occurrence rate and the size.
On the basis of the embodiment, in order to ensure that power track inspection personnel can find the track power-on condition in time, a plurality of alarm devices can be arranged along the power track, and each state display unit 2 corresponds to the power track corresponding to each carriage.
On the basis of the above embodiment, in order to improve the detection accuracy, to prevent the electromagnetic detection coil 4 from malfunctioning to cause inaccurate judgment, it is also necessary to provide an alarm unit and to provide two electromagnetic detection coils 4 in the same detection area of the power track.
The alarm unit is connected with the control unit 1 and is used for sending an alarm to a manager when the control unit 1 detects that the difference value of the magnetic field intensity signals of the two electromagnetic detection coils 4 in the same detection area is larger than a detection threshold value.
Further, the alarm unit may be disposed at a central console of the magnetic levitation track, or may be disposed at the electromagnetic detection coil 4, which is not limited herein.
In a specific implementation, a worker can quickly judge the power-on condition of the power rail through the information displayed by the state display unit 2, but the visual field range of the worker is limited, and the worker may not be able to see the display information at a far place, so that the worker cannot timely grasp the power-on condition of the power rail, and danger may occur. Therefore, in the scheme provided by the application, the control unit 1 acquires the display information of each state display unit 2 through the monitoring state, judges the power-on state of the power track according to the display information, generates track power-on information, and sends the track power-on information to the mobile terminal so as to facilitate the manager to check the power-on information through the mobile terminal. The mobile terminal may be a wearable device such as a mobile phone or a bracelet, and the control unit 1 and the mobile terminal may be connected through WiFi or 5G communication protocols.
In addition, the application also provides a track safety protection system, which comprises a power supply, a communication unit and a positioning unit for positioning the fault area of the electromagnetic detection coil besides the track safety protection circuit.
The track safety protection system provided by the application comprises the track safety protection circuit, wherein the circuit comprises: the system comprises a control unit, a state display unit, a monitoring unit and at least one electromagnetic detection coil; each electromagnetic detection coil is respectively arranged at two sides of a power track corresponding to each carriage so as to acquire magnetic field intensity signals of each power track; the state display unit is connected with the electromagnetic detection coils to determine detection current values in the target power tracks corresponding to the electromagnetic detection coils according to the magnetic field intensity signals, and generates display signals according to the detection current values, so that management staff can conveniently judge whether any power track is electrified according to the display signals. The monitoring unit is used for collecting the display signals and sending the display signals to the control unit; the control unit generates track power-on information according to the display signal and sends the track power-on information to the mobile terminal so that management staff can grasp the power-on state of the whole track. Therefore, in the technical scheme provided by the application, the current value in the power rail is judged through the electromagnetic detection coil, so that danger caused by misoperation of a power-on person is prevented, and meanwhile, the control unit can also generate track power-on information according to the display signal acquired by the monitoring unit, so that the worker can master the real-time power-on state and power-on trend of the whole track, and the safety is further improved.
The track safety protection circuit and system provided by the application are described in detail above. In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A track safety protection circuit, comprising:
the system comprises a control unit, a state display unit, a monitoring unit and at least two electromagnetic detection coils;
each electromagnetic detection coil is respectively arranged at two sides of a power track corresponding to each carriage so as to acquire a magnetic field intensity signal of each power track;
the state display unit is connected with the electromagnetic detection coils, so as to determine detection current values in target power tracks corresponding to the electromagnetic detection coils according to the magnetic field intensity signals, and generate display signals according to the detection current values;
the monitoring unit is used for collecting the display signals and sending the display signals to the control unit;
and the control unit generates track power-on information according to the display signal and sends the track power-on information to the mobile terminal.
2. The track safety protection circuit of claim 1, wherein the track power-on comprises: the power-on information and the power-on trend information are in real time;
correspondingly, the control unit generates the track power-on information according to the display signal, and the track power-on information comprises:
acquiring the display signal and determining the level information of the display signal;
determining the real-time power-on information according to the level information, wherein the real-time power-on information comprises power-on car information and power cabinet current information;
and determining the power-on trend information according to the real-time power-on information and the train power.
3. The track safety circuit of claim 1, wherein determining the detection current value from the magnetic field strength signal comprises:
acquiring the magnetic field strength signal;
and determining the detection current value corresponding to the magnetic field intensity signal according to a preset magnetic field current corresponding relation.
4. The track safety circuit of claim 1, wherein the status display unit includes a buzzer and an indicator light;
when the magnetic field strength signal is higher than a first threshold value and lower than a second threshold value, the buzzer and the indicator lamp are operated at a first frequency;
when the magnetic field strength signal is higher than a second threshold value, the buzzer and the indicator lamp both operate at a second frequency.
5. The track safety circuit of claim 4, wherein the number of status display units is a plurality;
each state display unit corresponds to the power track corresponding to each carriage.
6. The track safety circuit of claim 4, wherein the monitoring unit comprises a camera and a pickup;
the camera and the pickup are respectively used for collecting signals of the indicator lamp and the buzzer, so that the control unit can acquire working frequency of each state display unit.
7. The track safety circuit of claim 1, wherein two electromagnetic sensing coils are disposed within the same sensing region of the power track.
8. The track safety circuit of claim 7, further comprising an alarm unit;
the alarm unit is connected with the control unit and is used for sending an alarm to a manager when the control unit detects that the difference value of the magnetic field intensity signals of the two electromagnetic detection coils in the same detection area is larger than a detection threshold value.
9. The track safety protection circuit of claim 1, wherein the control unit is connected to the mobile terminal via a WiFi communication protocol.
10. A track safety protection system comprising a track safety protection circuit as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310992013.0A CN116750043A (en) | 2023-08-08 | 2023-08-08 | Track safety protection circuit and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310992013.0A CN116750043A (en) | 2023-08-08 | 2023-08-08 | Track safety protection circuit and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116750043A true CN116750043A (en) | 2023-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310992013.0A Pending CN116750043A (en) | 2023-08-08 | 2023-08-08 | Track safety protection circuit and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116750043A (en) |
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2023
- 2023-08-08 CN CN202310992013.0A patent/CN116750043A/en active Pending
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