CN211252603U

CN211252603U - Air overhead traveling crane ground information integrated train safety and service system

Info

Publication number: CN211252603U
Application number: CN201921097538.3U
Authority: CN
Inventors: 杨吉钊; 何文利; 沈琦
Original assignee: Chengdu 91r Intelligent Technology Co ltd
Current assignee: Chengdu 91r Intelligent Technology Co ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-08-14
Anticipated expiration: 2029-07-15

Abstract

The utility model discloses an air overhead traveling crane ground information integrated train safety and service system, which comprises a base station, trains, tracks and an equipment room, wherein the front and the rear ends of a plurality of trains are respectively provided with vehicle-mounted equipment, a plurality of ground end devices are arranged on one side of the track, a plurality of device rooms are all provided with management terminals, the management terminal communicates with a base station by transmitting wireless signals, the base station communicates with vehicle-mounted equipment through a commercial mobile network, the base station communicates with ground-end equipment through the commercial mobile network, can achieve the reliable distance accurate calculation that the distance between the trains before and after the same track operation exceeds 1500 meters, the distance measurement accuracy can reach centimeter level, the train operation can achieve the effect of monitoring the overlong safe distance, when the system is deployed, equipment is additionally arranged at the front end and the rear end of the train, the end position of a line and the like, and the functions of ranging, early warning, collision prevention and rear-end collision prevention of the train can be realized.

Description

Air overhead traveling crane ground information integrated train safety and service system

Technical Field

The utility model relates to a track traffic technical field, specific field is an empty overhead traveling crane ground information integration train safety and service system.

Background

The air-to-air vehicle-ground information integration is to research a transmission mechanism and a transmission principle under an air-to-air, air-to-vehicle and ground three-dimensional environment, determine a special network architecture suitable for rail transit safety guarantee, research large-range and long-distance communication technologies of different communication base stations, realize high coverage, large bandwidth and layered communication of an integrated special network, research communication modes among satellites, stratospheric airship, unmanned aerial vehicles, trains and ground base stations in the special network, determine a high-reliability communication protocol and a communication system, research the comprehensive optimization of transmission performance of the special network under different application scenes through software and hardware technologies such as a networking mode and a transmission protocol, and effectively improve the stability, robustness, service life and the like of information transmission of the special network.

The existing train safety and service system is mostly realized by controlling signal lamps, controlling by wire or wirelessly and controlling by alarm signals. The safety control system depends on manual operation and equipment reliability, and can not effectively avoid traffic accidents caused by human errors of signal operators and rail vehicle drivers or equipment failure. In order to effectively and practically ensure the safety of rail transit, the prior art needs to be improved, and particularly for high-speed rail transit, in order to prevent train collision, a rail transit control method and system with high reliability are further needed, so that potential safety hazards caused by human errors and equipment failures are eliminated, and major accidents are avoided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an empty overhead traveling crane ground information integration train safety and service system to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an empty overhead traveling crane ground information integration train safety and service system, includes basic station, train, track and equipment computer lab, a plurality of both ends all are equipped with the mobile unit around the train, orbital one side is equipped with a plurality of ground end equipment, a plurality of all be equipped with management terminal in the equipment computer lab, management terminal communicates through transmission radio signal and basic station, the basic station communicates through commercial mobile network and mobile unit, the basic station communicates through commercial mobile network and ground end equipment, management terminal communicates through system ultra wide band autonomous network and ground end equipment, mobile unit communicates through radio signal with ground end equipment, one head end mobile unit and another on the train tail end mobile unit on the train communicates through radio signal.

Preferably, the vehicle-mounted equipment comprises an anti-collision system, a train tracking and positioning system and an ad hoc network communication system.

Preferably, the anti-collision system comprises a ranging information transceiving mechanism, a safe distance warning mechanism and a train control output mechanism.

Preferably, the train tracking and positioning system comprises an active defense mechanism, a displacement monitoring mechanism 522 and a positioning mechanism.

Preferably, the ad hoc network communication system adopts nanosecond narrow pulse transmission wireless signals for communication.

Preferably, the vehicle-mounted equipment adopts TSSBRC bidirectional flight time TW-ToF to carry out ranging.

Preferably, the ground-end device comprises a speed measurement system and a navigation system.

Compared with the prior art, the beneficial effects of the utility model are that: an integrated train safety and service system of air overhead traveling crane ground information, when the vehicle-mounted device on the train is in distance measurement and communication, it adopts TSSBRC two-way flight time TW-ToF mode, according to the mutual distance information between several vehicle-mounted devices calculates the relative position between the vehicle-mounted devices, and according to the definite condition and demand of train safety monitoring application it can adopt the vehicle-mounted device to integrate and develop anti-collision system, train tracking and positioning system and self-organizing network communication system based on "vehicle-vehicle" communication of the train, the TSSBRC two-way flight time TW-ToF distance measurement working principle, different from ultrasonic wave or laser signal, the TSSBRC UWB pulse can pass through wall and dense leaf, and adopt two-way flight time TW-ToF mode to make distance measurement between 2 or several TSSBRC modules, the measuring accuracy can be up to 2.2 +/-0.1 cm, the refresh rate is up to 125Hz, the distance measurement technology of two-way flight time is mature, at present, the system is used on several large-scale iron and steel enterprise trains, when the head and tail sections of two trains are both provided with vehicle-mounted equipment, the head-end vehicle-mounted equipment of one train is communicated with the tail-end vehicle-mounted equipment of the other train through wireless signals to obtain the real-time distance between the front train and the rear train on the same track line, automatically judge the safety condition of train operation, provide a set of completely independent anti-collision system for train operation, the system is internally provided with a distance measurement information receiving and transmitting mechanism and a safety distance warning mechanism, and is designed with a train control output mechanism, so that train collision and rear-end collision can be prevented, track key facilities and the like can be protected, sensor detection data can be provided for the train to realize the whole-line operation tracking, accurate positioning, safe navigation and intelligent scheduling, and brand-new application based on high-precision, by enhancing the signal intensity modulation, long-distance and high-speed wireless communication is achieved. The vehicle-mounted equipment directly realizes modulation by using time domain pulses (nanosecond level) of a start point and a stop point, a modulation information process is directly placed on a very wide frequency band in a transmission process, the frequency range occupied by a bandwidth is determined according to the duration time in the process, the accurate distance between the two vehicle-mounted equipment is calculated according to the time of the time domain pulses of the start point and the stop point falling back, and the technical mode adopted by the vehicle-mounted equipment is insensitive to channel fading, low in power spectral density (micropower) of transmitted signals, low in interception capability, low in system complexity and capable of providing centimeter-level positioning accuracy. The train tracking and positioning system can be used for drawing and displaying precise electronic maps of subway lines, vehicle sections, parking lots and the like, precisely and geographically marking key point positions or equipment positions of the rail lines, can realize digital management of the train lines, obtains the distance between a train and ground-end equipment of a fixed point on the rail lines within a measurable range through a precise distance measuring device, automatically judges the precise position of the train on the rail lines, and realizes precise positioning and safe navigation of the train through the mapping relation between a high-precision rail electronic map and the running track of the train. In addition, the ground end equipment is added at the fixed point of the track line, the ground end equipment is internally provided with a precise track line kilometer post to form a sampling standard for the distance measurement of the moving position and the fixed point of the train, the point positioning of the train at any moment is ensured, the system uses a train precise position checking mechanism of a multiple software algorithm, and the system comprises a train and vehicle active defense mechanism double-unit distance measurement checking mechanism based on point-to-point precise distance measurement, a train real-time displacement monitoring mechanism dynamic deduction checking based on vehicle dynamic and a positioning mechanism train precise position checking based on train moving and fixed point distance measurement, the utility model can achieve the reliable distance precise calculation of the distance of more than 1500 meters before and after the same track operation, the distance measurement precision can reach the centimeter level, the train operation can achieve the overlong safe distance monitoring effect, and when the system is deployed, the front end and the tail, the train ranging early warning anti-collision rear-end collision prevention function can be realized.

Drawings

FIG. 1 is a schematic view of the safety and service system of the present invention;

FIG. 2 is a schematic view of the vehicular apparatus of the present invention;

fig. 3 is a schematic view of the ground-side equipment of the present invention.

In the figure: the system comprises a base station 1, a train 2, a track 3, a equipment room 4, a vehicle-mounted equipment 5, an anti-collision system 51, a ranging information transceiving mechanism 511, a safety distance warning mechanism 512, a train control output mechanism 513, a train tracking and positioning system 52, an active defense mechanism 521, a displacement monitoring mechanism 522, a positioning mechanism 523, an autonomous network communication system 53, a ground-end equipment 6, a speed measuring system 61, a navigation system 62 and a management terminal 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some 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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an air overhead traveling crane ground information integrated train safety and service system comprises a base station 1, trains 2, tracks 3 and equipment rooms 4, wherein the front ends and the rear ends of a plurality of trains 2 are respectively provided with vehicle-mounted equipment 5, a plurality of ground end devices 6 are arranged on one side of the track 3, a plurality of device rooms 4 are all provided with management terminals 7, the management terminal 7 communicates with the base station 1 by transmitting a wireless signal, the base station 1 communicates with the in-vehicle device 5 through a commercial mobile network, the base station 1 communicates with the ground terminal equipment 6 through a commercial mobile network, the management terminal 7 communicates with the ground terminal equipment 6 through a system ultra wide band autonomous network, the vehicle-mounted equipment 5 communicates with the ground-end equipment 6 through wireless signals, and the head-end vehicle-mounted equipment 5 on one train 2 communicates with the tail-end vehicle-mounted equipment 5 on the other train 2 through wireless signals.

Specifically, the in-vehicle device 5 includes a collision avoidance system 51, a train tracking and positioning system 52, and an ad hoc communication system 53.

Specifically, the collision avoidance system 51 includes a ranging information transceiving mechanism 511, a safe distance warning mechanism 512, and a train control output mechanism 513.

Specifically, the train tracking and positioning system 52 includes an active defense mechanism 521, a displacement monitoring mechanism 522, and a positioning mechanism 523.

Specifically, the ad hoc network communication system 53 uses nanosecond narrow pulse transmission wireless signals for communication.

Specifically, the onboard device 5 performs ranging using TSSBRC two-way flight time TW-ToF.

Specifically, the ground-side device 6 includes a speed measurement system 61 and a navigation system 62.

The working principle is as follows: the utility model discloses when the vehicle-mounted device 5 on the well train is carrying out range finding and communication, adopt TSSBRC two-way flight time TW-ToF mode, calculate the relative position between the vehicle-mounted device 5 according to mutual distance information between a plurality of vehicle-mounted device 5, through the definite condition and the demand that train 2 safety monitoring was used, can adopt this vehicle-mounted device 5 integration to develop the collision avoidance system 51, train tracking positioning system 52 and ad hoc network communication system 53 that train 5 is based on "car" communication, TSSBRC two-way flight time TW-ToF range finding theory of operation, different with ultrasonic wave or laser signal, TSSBRC's UWB pulse can pass the wall and dense leaf, adopt two-way flight time TW-ToF mode to carry out the range finding between 2 or a plurality of TSSBRC modules, the measuring accuracy can reach 2.2.2 +/-0.1 centimeter, the refresh rate is 125Hz the highest, the range finding technique of two-way flight time has been very mature, at present, the system is used on several large-scale iron and steel enterprise trains, when the head and tail sections of two trains 2 are both provided with vehicle-mounted equipment 5, the head-end vehicle-mounted equipment 5 of one train 2 is communicated with the tail-end vehicle-mounted equipment 5 of the other train 2 through wireless signals, the real-time distance between the front train 2 and the rear train 2 on the same track 3 line is obtained, the safety condition of the train 2 operation is automatically judged, a set of completely independent anti-collision system 51 is provided for the train 2 operation, a ranging information transceiving mechanism 511 and a safety distance warning mechanism 512 are arranged in the system, a train 2 control output mechanism 513 is designed, the train collision rear-end collision can be prevented, the key facilities of the track are protected, the sensor detection data is provided for the train 2 to realize the whole-line operation tracking, the accurate positioning, the safe navigation and the intelligent scheduling, the application based on the high-precision position service of the, by enhancing the signal intensity modulation, long-distance and high-speed wireless communication is achieved. The vehicle-mounted equipment 5 directly realizes modulation by using time domain pulses (nanosecond level) of a start point and a stop point, a modulation information process is directly placed on a very wide frequency band in a transmission process, the frequency range occupied by a bandwidth is determined according to the duration time in the process, the accurate distance between the two vehicle-mounted equipment 5 is calculated according to the time of the time domain pulses of the start point and the stop point falling back, and the technical mode adopted by the vehicle-mounted equipment 5 is insensitive to channel fading, low in power spectral density (micropower) of a transmitted signal, low in interception capability, low in system complexity and capable of providing centimeter level positioning accuracy. The train tracking and positioning system 52 can perform precise electronic map drawing and display on subway lines, vehicle sections, parking lots and the like, perform precise geographic marking on key point positions or equipment positions of the track 3 lines, can realize digital management of the train 2 lines, the train tracking and positioning system 52 obtains the distance between the train 2 and the ground end equipment 6 of a fixed point on the track 3 lines within a measurable range through a precise distance measuring device, automatically judges the precise position of the train 2 on the track 3 lines, and realizes precise positioning and safe navigation of the train 2 through the mapping relation between a high-precision track 3 electronic map and the running track of the train 2. In addition, the ground end equipment 6 is added at a fixed point of a track 3 line, the ground end equipment 6 is internally provided with an accurate track 3 line kilometer post to form a sampling standard for ranging the moving position of the train 2 and the fixed point, thereby ensuring the point positioning of the train 2 at any moment, the system uses a train accurate position checking mechanism of a multiple software algorithm, wherein, the train and the train moving defense mechanism 521 based on point-to-point accurate ranging is adopted to carry out double-unit ranging checking, the train 2 real-time displacement monitoring mechanism 522 dynamic deduction checking based on the vehicle dynamic and the positioning mechanism 523 train 2 accurate position checking based on the train 2 moving and the fixed point ranging, the utility model discloses, the reliable distance accurate calculation of the distance between the trains 2 exceeding 1500 meters before and after the same track 3 runs can be achieved, the ranging precision can reach centimeter level, the ultra-long safe distance monitoring effect can be achieved when the system is deployed, and equipment is additionally arranged at the end position of the line, and the functions of ranging, early warning, collision prevention and rear-end collision prevention of the train 2 can be realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an empty overhead traveling crane ground information integration train safety and service system, includes basic station (1), train (2), track (3) and equipment computer lab (4), its characterized in that: the front end and the rear end of the trains (2) are respectively provided with a vehicle-mounted device (5), one side of the track (3) is provided with a plurality of ground end devices (6), a plurality of device rooms (4) are respectively provided with a management terminal (7), the management terminal (7) communicates with the base station (1) by transmitting wireless signals, the base station (1) communicates with a vehicle-mounted device (5) through a commercial mobile network, the base station (1) communicates with ground end equipment (6) through a commercial mobile network, the management terminal (7) communicates with the ground terminal equipment (6) through a system ultra-wideband autonomous network, the train-mounted equipment (5) is communicated with the ground-end equipment (6) through wireless signals, and the head-end train-mounted equipment (5) on one train (2) is communicated with the tail-end train-mounted equipment (5) on the other train (2) through wireless signals.

2. The air crown block and ground information integrated train safety and service system according to claim 1, wherein: the vehicle-mounted equipment (5) comprises an anti-collision system (51), a train tracking and positioning system (52) and an ad hoc network communication system (53).

3. The air crown block and ground information integrated train safety and service system according to claim 2, wherein: the anti-collision system (51) comprises a ranging information transceiving mechanism (511), a safe distance warning mechanism (512) and a train control output mechanism (513).

4. The air crown block and ground information integrated train safety and service system according to claim 2, wherein: the train tracking and positioning system (52) comprises an active defense mechanism (521), a displacement monitoring mechanism (522) and a positioning mechanism (523).

5. The air crown block and ground information integrated train safety and service system according to claim 2, wherein: the ad hoc network communication system (53) adopts nanosecond narrow pulse to transmit wireless signals for communication.

6. The air crown block and ground information integrated train safety and service system according to claim 2, wherein: the vehicle-mounted equipment (5) adopts TSSBRC bidirectional flight time TW-ToF to carry out ranging.

7. The air crown block and ground information integrated train safety and service system according to claim 2, wherein: the ground end equipment (6) comprises a speed measuring system (61) and a navigation system (62).