CN211519526U - Circuit detection system for unmanned subway - Google Patents
Circuit detection system for unmanned subway Download PDFInfo
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- CN211519526U CN211519526U CN202020099663.4U CN202020099663U CN211519526U CN 211519526 U CN211519526 U CN 211519526U CN 202020099663 U CN202020099663 U CN 202020099663U CN 211519526 U CN211519526 U CN 211519526U
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 14
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- 230000004888 barrier function Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 4
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Abstract
The utility model relates to a line detection system for unmanned subway, which comprises a detection device and a vehicle-mounted host; the detection device comprises a detection cross beam and two detection mechanisms arranged at two ends of the detection cross beam; each detection mechanism comprises a rack plate component, a plate spring component and a displacement sensor, and the detection beam is connected with the plate spring component through the rack plate component; the vehicle-mounted host is connected with the displacement sensor and the train braking safety loop. The vehicle-mounted host comprises two sets of input circuits, processing circuits and output relay groups which are designed in a redundant mode, each displacement sensor is connected with the two input circuits at the same time, the two input circuits are connected with the two processing circuits at the same time, the two processing circuits are connected with the two output relay groups at the same time, and the two output relay groups are connected with the train braking safety circuit at the same time. The utility model discloses a change of positional relationship reaches barrier and derail detection purpose between leaf spring and the displacement sensor, and the vehicle-mounted host adopts the system that two sets of redundant heats were equipped with, makes the train emergency braking when needs.
Description
Technical Field
The utility model belongs to the detection device field especially relates to a circuit detection system for unmanned subway.
Background
In the current stage, in the field of rail transit detection, an obstacle and derailment detection device generally comprises two independent components, namely a plate spring and a detection sensor (such as a travel switch sensor, a proximity switch sensor or a displacement sensor), and the detection purpose is achieved by changing the position relationship between the two components. When the obstacle and derailment detection device adopts a detection sensor, the trigger principle is that a touch signal is formed by detecting corresponding displacement variables, and obstacle or derailment detection analysis is carried out according to the touch signal and the vehicle speed. However, in the existing detection system, a set of input circuit and processing circuit is generally adopted to process the displacement information collected by the sensor, and under the condition of failure, the system cannot normally work, so that the phenomena of collision and derailment of obstacles of the train cannot be effectively detected.
Accordingly, there is a need for an improvement over existing line probing systems that provides a line probing system that employs redundant control.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the not enough of above-mentioned current circuit detection system existence, provide a circuit detection system for unmanned subway, input circuit, processing circuit, output relay group, power module all adopt two sets of redundant designs to realize the barrier and detect and the accurate control that derails and detect.
In order to achieve the purpose, the utility model provides a line detection system for unmanned subway, which comprises a detection device and a vehicle-mounted host; the detection device includes: the device comprises a detection cross beam and two detection mechanisms arranged at two ends of the detection cross beam; each detection mechanism comprises a height-adjustable rack plate component, a plate spring component and a displacement sensor; the detection cross beam is connected with the plate spring assembly through the rack plate assembly, and a plurality of displacement sensors are mounted on the plate spring assembly; the method is characterized in that:
the vehicle-mounted host is connected with the displacement sensor and the train braking safety loop;
the on-vehicle host computer includes: the system comprises an input circuit, a processing circuit and an output relay group, wherein the input circuit, the processing circuit and the output relay group are all designed in two sets of redundancy; each displacement sensor is simultaneously connected with two input circuits, the two input circuits are simultaneously connected with two processing circuits, the two processing circuits are simultaneously connected with two output relay groups, and the two output relay groups are simultaneously connected with a train braking safety loop; the input circuit is used for acquiring displacement information detected by each displacement sensor; and the processing circuit is used for judging the collision detection information or derailment detection information of the obstacles according to the displacement information detected by each displacement sensor, generating a driving control signal and sending the driving control signal to the output relay group so as to control the on-off of the train braking safety loop.
Preferably, the vehicle-mounted host computer further comprises two power modules with redundant design, and the two power modules are simultaneously connected with the input circuit and the processing circuit.
Preferably, the vehicle-mounted host is also connected with the TCMS train network system at the same time.
Preferably, the plate spring assembly comprises a plate spring mounting seat and a plate spring mounted on the plate spring mounting seat.
Preferably, the displacement sensor is connected with the plate spring, and the displacement sensor comprises a first displacement sensor for detecting the horizontal displacement of the plate spring and a second displacement sensor for detecting the vertical displacement of the plate spring.
Preferably, the rack plate assembly comprises two meshed first and second rack plates, the first rack plate is connected with the detection beam, and the second rack plate is connected with the plate spring mounting seat.
Preferably, elastic protective covers are covered outside the rack plate assembly and the plate spring assembly.
Compared with the prior art, the utility model discloses an advantage lies in with positive effect:
the utility model provides a circuit detection system is used to unmanned subway, detection device detect the crossbeam and pass through rack plate subassembly and be connected with the leaf spring subassembly including detecting crossbeam, rack plate subassembly, leaf spring subassembly, displacement sensor, and on-vehicle host computer is connected with displacement sensor, train braking safety circuit. The utility model discloses a change of position relation between leaf spring and the displacement sensor reaches barrier and derails and detects the purpose.
Meanwhile, the vehicle-mounted host adopts two sets of input circuits, processing circuits and output relay sets which are designed in a redundant mode, each displacement sensor is connected with the two input circuits at the same time, the two input circuits are connected with the two processing circuits at the same time, the two processing circuits are connected with the two output relay sets at the same time, the two output relay sets are connected with a train braking safety circuit at the same time, a single set can be rapidly switched to the other set when a single set fails, the normal work of a system is guaranteed, a train is emergently braked when needed, and the safety of the train in operation is guaranteed.
Drawings
Fig. 1 is a block diagram of the structure of the unmanned subway line detection system of the present invention;
fig. 2 is a structural diagram of a detection device according to an embodiment of the present invention;
FIG. 3 is a front view of the detecting mechanism (without the protective cover 124) of the above embodiment;
FIG. 4 is a top view of the detection mechanism (without the shield 124) of the above embodiment;
FIG. 5 is a block diagram of the vehicular host according to the embodiment of the present invention;
wherein, 1-detection device, 11-detection beam, 12-detection mechanism, 121-rack plate assembly, 1211-first rack plate, 1212-second rack plate, 122-plate spring assembly, 1221-plate spring mount, 1222-plate spring, 123-displacement sensor, 1231-first displacement sensor, 1232-second sensor, 124-elastic shield; 2-vehicle-mounted host, 3-train bogie, 4-train braking safety loop and 5-TCMS train network system.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention and the above-described drawings are intended to cover non-exclusive inclusions. For example, a process, method, or system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.
An embodiment of the utility model provides a circuit detection system for unmanned subway for the barrier detects and derails the detection and analysis in the train operation. Referring to fig. 1, the detection system includes a detection device 1 and an on-vehicle host 2; the detection device 1 is arranged on a train bogie 3, the detection device 1 is connected with a vehicle-mounted host 2, and the vehicle-mounted host 2 is connected with a train braking safety circuit 4 and a TCMS train network system 5.
As for the detection device 1, referring to fig. 2, 3, and 4, in the present embodiment, the detection device 1 includes: the device comprises a detection beam 11 and two detection mechanisms 12 arranged at two ends of the detection beam 11; each detection mechanism 12 includes a height-adjustable rack plate assembly 121, a plate spring assembly 122, and a displacement sensor 123; the detection beam 11 is connected to a leaf spring assembly 122 through a rack plate assembly 121, and a plurality of displacement sensors 123 are mounted on the leaf spring assembly 122.
With further reference to fig. 2, 3 and 4, the leaf spring assembly 122 includes a leaf spring mounting seat 1221 and a leaf spring 1222 mounted to the leaf spring mounting seat 1221. In this embodiment, two displacement sensors 123 may be provided for each detection mechanism 12, namely, a first displacement sensor 1231 for detecting the horizontal displacement of the plate spring, and a second displacement sensor 1232 for detecting the vertical displacement of the plate spring, and the displacement sensors 123 are connected to the plate spring 1222. The rack plate assembly 121 comprises a first rack plate 1211 and a second rack plate 1212 which are meshed with each other, the first rack plate 1211 is connected with the detection beam 11, the second rack plate 1212 is connected with the plate spring mounting seat 1221, and the first rack plate 1211 is matched with the second rack plate 1212 to realize height adjustment between the detection beam 11 and the plate spring assembly 122. When the train collides with an obstacle, a part of the kinetic energy is converted into the elastic potential energy of the leaf spring 1222 by the detecting mechanism 12. Meanwhile, the plate spring 1222 generates a displacement in a horizontal direction opposite to the movement direction, the first displacement sensor 1231 detects a corresponding displacement variable, and when the displacement variable exceeds a set value, the first displacement sensor is triggered to generate a touch signal and transmit the touch signal to the on-vehicle host 2 for control. When derailment occurs in the running process of a train, the detection beam 11 collides with a steel rail and lifts the detection beam 11 upwards, the first rack plate 1211 is matched with the second rack plate 1212 to change the vertical distance between the plate spring 1222 and the second displacement sensor 1232, the second displacement sensor 1232 detects a corresponding displacement variable, and when the displacement variable exceeds a set value, the second displacement sensor is triggered to generate a touch signal and transmits the touch signal to the vehicle-mounted host machine 2 for control.
As further shown in fig. 2, in the present embodiment, an elastic protection cover 124 is further disposed outside the rack plate assembly 121 and the plate spring assembly 122 to enhance the waterproof sealing protection.
As for the on-board host 2, as shown in fig. 1 and 5, the on-board host 2 is connected to the displacement sensor 123 of the detection device 1, the train brake safety circuit 4, and the TCMS train network system 5. The vehicle-mounted host comprises a power module, an input circuit, a processing circuit and an output relay group, wherein the power module, the input circuit, the processing circuit and the output relay group all adopt two sets of redundancy designs. The first displacement sensor and the second displacement sensor of the two detection mechanisms are simultaneously connected with the two input circuits, the two input circuits are simultaneously connected with the two processing circuits, the two processing circuits are simultaneously connected with the two output relay groups, and the two output relay groups are simultaneously connected with the train braking safety loop; the two power supply modules are simultaneously connected with the input circuit and the processing circuit to convert the DC110V direct current into required working voltage. The input circuit is used for acquiring displacement information detected by each displacement sensor; and the processing circuit is used for judging the collision detection information or derailment detection information of the obstacles according to the displacement information detected by each displacement sensor, generating a driving control signal and sending the driving control signal to the output relay group to control the on-off of a train braking safety loop so as to perform emergency braking. Meanwhile, the vehicle-mounted host uploads the detected obstacle and derailment detection information to the control center through the TCMS train network system.
The vehicle-mounted host computer of the embodiment is provided with two sets of redundant hot standby systems, so that the reliability is improved. The power module, the input circuit and the processing circuit are in double-set redundancy design, and when a single set fails, the other set can be rapidly switched to, so that the normal work of the system is ensured. Meanwhile, two output relay groups for emergency braking are arranged and connected with a train braking safety loop, and the system can be switched to another group for control under the condition of single group failure, so that emergency braking of the train when needed is guaranteed, and safety is guaranteed. In the actual design, can be according to the demand, design into flat box body with on-vehicle host computer, integration single circuit board installs in train electric appliance cabinet, the maintenance of being convenient for.
To sum up, the utility model discloses a change of the position relation between two independent components of leaf spring and displacement sensor reaches the barrier and detects and derail the detection purpose. The displacement sensor detects corresponding displacement variables to form touch signals, the touch signals are sent to the vehicle-mounted host, and the vehicle-mounted host can detect obstacles and detect derailment according to the touch signals and the vehicle speed. The vehicle-mounted host adopts two sets of redundant hot standby systems, a power supply module, an input circuit, a processing circuit and an output relay set are in double-set redundant design, and a single set can be rapidly switched to the other set when a single set fails, so that the normal work of the system is ensured, the train is emergently braked when needed, and the safety of the train in operation is ensured.
Claims (7)
1. A line detection system for unmanned subways comprises a detection device and a vehicle-mounted host; the detection device includes: the device comprises a detection cross beam and two detection mechanisms arranged at two ends of the detection cross beam; each detection mechanism comprises a height-adjustable rack plate component, a plate spring component and a displacement sensor; the detection cross beam is connected with the plate spring assembly through the rack plate assembly, and a plurality of displacement sensors are mounted on the plate spring assembly; the method is characterized in that:
the vehicle-mounted host is connected with the displacement sensor and the train braking safety loop;
the on-vehicle host computer includes: the system comprises an input circuit, a processing circuit and an output relay group, wherein the input circuit, the processing circuit and the output relay group are all designed in two sets of redundancy; each displacement sensor is simultaneously connected with two input circuits, the two input circuits are simultaneously connected with two processing circuits, the two processing circuits are simultaneously connected with two output relay groups, and the two output relay groups are simultaneously connected with a train braking safety loop; the input circuit is used for acquiring displacement information detected by each displacement sensor; and the processing circuit is used for judging the collision detection information or derailment detection information of the obstacles according to the displacement information detected by each displacement sensor, generating a driving control signal and sending the driving control signal to the output relay group so as to control the on-off of the train braking safety loop.
2. The line detection system for the unmanned subway is characterized in that the vehicle-mounted host comprises two power supply modules with redundant design, and the two power supply modules are simultaneously connected with the input circuit and the processing circuit.
3. The line detection system for the unmanned subway according to claim 2, wherein said vehicle-mounted host computer is also connected to the TCMS train network system at the same time.
4. The line detection system for the unmanned subway as claimed in any one of claims 1-3, wherein said plate spring assembly comprises a plate spring mounting seat and a plate spring mounted on said plate spring mounting seat.
5. The line detection system for the unmanned subway is characterized in that the displacement sensor is connected with the plate spring, and the displacement sensor comprises a first displacement sensor for detecting the horizontal displacement of the plate spring and a second displacement sensor for detecting the vertical displacement of the plate spring.
6. The system of claim 4, wherein the rack plate assembly comprises a first rack plate and a second rack plate which are engaged with each other, the first rack plate is connected to the detection beam, and the second rack plate is connected to the leaf spring mounting base.
7. The line detection system for the unmanned subway according to any one of claims 1-3, wherein an elastic protection cover is covered outside both said rack plate assembly and said plate spring assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020099663.4U CN211519526U (en) | 2020-01-16 | 2020-01-16 | Circuit detection system for unmanned subway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020099663.4U CN211519526U (en) | 2020-01-16 | 2020-01-16 | Circuit detection system for unmanned subway |
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| CN211519526U true CN211519526U (en) | 2020-09-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112291129A (en) * | 2020-11-02 | 2021-01-29 | 中车南京浦镇车辆有限公司 | Unmanned subway train derailment detection control device |
| CN113479239A (en) * | 2021-06-24 | 2021-10-08 | 中车株洲电力机车有限公司 | Rail vehicle and obstacle detection method and system thereof |
| CN113562028A (en) * | 2021-07-08 | 2021-10-29 | 中车南京浦镇车辆有限公司 | Contact type obstacle detection circuit and obstacle detection method for railway vehicle |
-
2020
- 2020-01-16 CN CN202020099663.4U patent/CN211519526U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112291129A (en) * | 2020-11-02 | 2021-01-29 | 中车南京浦镇车辆有限公司 | Unmanned subway train derailment detection control device |
| CN112291129B (en) * | 2020-11-02 | 2021-11-16 | 中车南京浦镇车辆有限公司 | Unmanned subway train derailment detection control device |
| CN113479239A (en) * | 2021-06-24 | 2021-10-08 | 中车株洲电力机车有限公司 | Rail vehicle and obstacle detection method and system thereof |
| CN113562028A (en) * | 2021-07-08 | 2021-10-29 | 中车南京浦镇车辆有限公司 | Contact type obstacle detection circuit and obstacle detection method for railway vehicle |
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