CN110278553B - Emergency safety protection early warning system - Google Patents
Emergency safety protection early warning system Download PDFInfo
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- CN110278553B CN110278553B CN201910543497.4A CN201910543497A CN110278553B CN 110278553 B CN110278553 B CN 110278553B CN 201910543497 A CN201910543497 A CN 201910543497A CN 110278553 B CN110278553 B CN 110278553B
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/164—Centralised systems, e.g. external to vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
Abstract
The invention relates to an emergency safety protection early warning system which is used for giving out early warning to field workers, staff along the line and a carrier driver and comprises a protection terminal, a carrier terminal and a ground protection relay terminal, wherein the protection terminal is arranged at an emergency safety protection place and used for receiving carrier information, sending and authorizing the temporary movement authority of a carrier, acquiring and sending message information and generating a light early warning signal and a voice early warning signal; the carrier terminal is used for analyzing the position of the carrier, receiving the temporary movement authority, acquiring and sending message information, generating a light early warning signal and a voice early warning signal and sending the running state information of the carrier to the outside; the ground protection relay terminal is arranged along the route at intervals and used for transmitting warning and ranging signals and generating light early warning signals and voice early warning signals. Compared with the prior art, the invention can improve the operation safety of various vehicles under emergency conditions, provide sufficient reaction time for all parties participating in traffic and reduce the loss of personnel and property.
Description
Technical Field
The invention relates to the technical field of traffic and transportation control, in particular to an emergency safety protection early warning system.
Background
Emergency traffic accidents, such as vehicle-to-vehicle, human-to-vehicle, and vehicle-to-object collisions, caused by infrastructure damage, foreign object intrusion, and improper operational organization, are becoming the primary cause of the accident, and secondary accidents caused by the above-mentioned accidents are becoming another major factor in traffic safety accidents.
The current emergency traffic control means has the following defects:
1. the continuous speed increase of the vehicle (namely a vehicle) ensures that the time for a traffic participant to accurately perceive the traffic operation condition and reasonably react is shorter and shorter, and serious potential safety hazards exist through the perception mode of observing the traffic operation condition in a sight distance range.
2. The current warning means mainly issue emergency information through means such as VMS (Variable Message Sign), traffic cone layout, and operation organization adjustment, which all issue information to drivers in one way, but do not feedback information to workers and people along the line, which has safety risk, and is essentially an open-loop control method.
3. Since the driver is highly concentrated in the driving process and ignores the temporary warning information, the control effect is limited. Even if the warning information is observed, the vehicle is difficult to avoid due to the fact that the response time is too short and the driving speed of the vehicle is too high, and a malignant accident is caused.
Therefore, how to effectively carry out closed-loop control on the emergency traffic condition, and meanwhile, a diversified information issuing means is provided, the information propagation path redundancy is ensured, the sufficient safety early warning protection is carried out on all the traffic participants, the safety and the reliability of the traffic system are improved, the accident risk is reduced, sufficient reaction time is provided for all the traffic participants to deal with the emergency traffic accident, and the method has great significance for an operation manager and all the traffic participants. The above drawbacks are the problems to be solved by the present invention.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an emergency safety protection early warning system, which effectively performs closed-loop control on emergency traffic conditions, performs sufficient safety early warning protection on all parties involved in traffic, improves the safety and reliability of a traffic system, reduces accident risks and provides sufficient reaction time for all parties involved in traffic to deal with emergency traffic accidents.
The purpose of the invention can be realized by the following technical scheme:
an emergency safety protection early warning system for giving early warning to field workers, along-line personnel and vehicle drivers comprises a protection terminal, a vehicle terminal and a ground protection relay terminal which can realize two-way communication between two, wherein,
the protection terminal is arranged at an emergency safety protection place and used for receiving carrier information, sending and authorizing temporary carrier moving permission, acquiring and sending message information and generating a light early warning signal and a voice early warning signal;
the carrier terminals are arranged on corresponding carriers, are in communication connection with the protection terminals, the ground protection relay terminals or other carrier terminals, and are used for analyzing the position of the carrier, receiving temporary movement authority, acquiring and sending message information, generating light early warning signals and voice early warning signals and sending the running state information of the carrier outwards;
the ground protection relay terminal is arranged at intervals along the route, and relay transmission of bidirectional interaction information is carried out between the protection terminal and the carrier terminal so as to enlarge the protection radius, and the ground protection relay terminal is used for transmitting a warning and distance measuring signal and generating a light early warning signal and a voice early warning signal.
Further, the temporary movement authority includes a maximum driving position and a temporary speed limit.
Further, the number of the ground protection relay terminals is at least 0.
Further, the set number of the ground protection relay terminals is determined according to an emergency safety protection early warning range D, and the emergency safety protection early warning range D meets the requirement of maximum speed limit
Travel maximum response reserve time
Maximum speed limit travel distance of:
in the formula,. DELTA.tiC is the time of signal propagation between the ith adjacent ground protection relay terminals or between the ground protection relay terminal and the protection terminal, and is the speed of light.
Furthermore, the protection terminal comprises a first mobile power supply module, a first information processing module, a first light warning module, a first voice warning module, a man-machine operation interface module and an omnidirectional radio transceiver module, wherein,
the first mobile power supply module is used for supplying power to each module of the protection terminal;
the first information processing module is used for processing the information received by the omnidirectional radio transceiver module and the information input by the man-machine operation interface module, calculating the time information of the carrier reaching the current position, and driving the first light warning module and the first voice warning module to perform corresponding early warning;
the first light warning module is connected with the first information processing module and used for generating a light early warning signal corresponding to the time when the carrier reaches the current position in a visual warning mode;
the first voice warning module is connected with the first information processing module and used for generating a voice early warning signal corresponding to the light signal in an auditory warning mode;
the man-machine operation interface module is connected with the first information processing module, displays carrier information, and acquires temporary movement authority and message information of a specific carrier;
the omnidirectional radio transceiver module is connected with the first information processing module and used for receiving carrier information and transmitting a warning ranging signal, message information and temporary mobility authority information.
Furthermore, the ground protection relay terminal comprises a second mobile power supply module, a second information processing module, a second light warning module, a second voice warning module, a first directional radio transceiver module and a second directional radio transceiver module, wherein,
the second mobile power supply module is used for supplying power to each module of the ground protection relay terminal;
the second information processing module is used for processing the information received by the first directional radio transceiver module and the second directional radio transceiver module, calculating the time information of the carrier reaching the current position, and driving the second light warning module and the second voice warning module to perform corresponding early warning;
the second light warning module is connected with the second information processing module and used for generating a light early warning signal corresponding to the time when the carrier reaches the current position in a visual warning mode;
the second voice warning module is connected with the second information processing module and used for generating a voice early warning signal corresponding to the light signal in an auditory warning mode;
the first directional radio transceiver module is connected with the second information processing module and used for receiving the warning ranging signal and the protection terminal signal at the safety protection side, forwarding the protection terminal signal to the backward safety protection side and simultaneously transmitting the warning ranging signal and the distance measurement information to the backward safety protection side;
the second directional radio transceiver module is connected with the second information processing module and used for receiving a signal of a carrier terminal facing away from the safety protection side or a signal of other ground protection relay terminals and forwarding the signal to the safety protection side.
Further, the second light warning module further comprises a link indicator light for displaying whether the relay link is clear.
Further, the vehicle terminal comprises a third mobile power module, a third information processing module, a third light warning module, a third voice warning module, a DMI module, a third directional radio transceiver module and a fourth directional radio transceiver module, wherein,
the third mobile power supply module is used for supplying power to each module of the carrier terminal;
the third information processing module is used for processing information received by the third directional radio transceiver module and the fourth directional radio transceiver module and information input by the DMI module, calculating time information from the carrier to a safety protection position, and driving the third light warning module and the third voice warning module to perform corresponding early warning;
the third light warning module is connected with the third information processing module and used for generating a light early warning signal corresponding to the time when the vehicle reaches the current position in a visual warning mode;
the third voice warning module is connected with the third information processing module and used for generating a voice early warning signal corresponding to the light signal in an auditory warning mode;
the DMI module is connected with the third information processing module, displays temporary moving authority, message content, time information and distance information, and receives edited message information;
the third directional radio transceiver module is connected with the third information processing module and used for receiving the warning and ranging signal of the safety protection side, the protection terminal signal and the ground protection relay terminal signal and sending the self motion information and the ranging information of the carrier to the safety protection side;
and the fourth directional radio transceiver module is connected with the third information processing module and used for receiving other carrier terminal signals and transmitting a warning ranging signal to the backward safety protection side.
Further, in the protection terminal and the ground protection relay terminal, the light early warning signal is specifically:
the green light is normally on to indicate that no carrier passes through within 5 minutes, the green light flashes to indicate that the carrier passes through the current position after 5 minutes, the yellow light is normally on to indicate that the carrier passes through the current position after 4 minutes, the yellow light flashes to indicate that the carrier passes through the current position after 3 minutes, the red light flashes to indicate that the carrier passes through the current position after 2 minutes, and the red light is normally on to indicate that the carrier passes through the current position after 1 minute.
Further, in the vehicle terminal, the light warning signal specifically includes:
the green light is always on to indicate that the current path does not have a safety protection road section, the green light flickers to indicate that the vehicle passes through a safety protection position after 5 minutes, the yellow light is always on to indicate that the vehicle passes through the safety protection position after 4 minutes, the yellow light flickers to indicate that the vehicle passes through the safety protection position after 3 minutes, the red light flickers to indicate that the vehicle passes through the safety protection position after 2 minutes, and the red light is always on to indicate that the vehicle passes through the safety protection position after 1 minute.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention is provided with the protection terminal and the ground protection relay terminal, can feed back information to protection field workers and workers along the line, realizes closed-loop control and reduces safety risk.
2. According to the invention, through the bidirectional communication among the protection terminal, the ground protection relay terminal and the carrier terminal, information is effectively issued to the emergency traffic condition, the information transmission path is redundant, sufficient safety early warning protection is carried out on all parties involved in traffic, and the safety and reliability of the traffic system are improved.
3. Because the linear transmission and the power of the radio are limited, the coverage range of a single radio transmitter is smaller, the invention can be provided with a plurality of ground protection relay terminals to realize the relay function, play the roles of link, relay and relay of information transmission, enlarge the protection radius and improve the early warning safety by enlarging the early warning range of emergency safety protection.
4. The invention has the light early warning signal and the voice early warning signal at the same time, provides diversified information issuing means, further improves the safety and the reliability of a traffic system, reduces the accident risk and reduces the casualties.
5. The invention generates corresponding light early warning signals according to the arrival time of the carrier to form multi-stage early warning, and sufficient early warning and reaction time is reserved, thereby effectively reducing the occurrence risk of secondary accidents.
6. The invention optimizes the operation flow, provides sufficient reaction time for all parties of traffic participation to deal with emergency traffic accidents, and improves the safety and reliability of the traffic system aiming at the emergency accidents in different scenes.
Drawings
FIG. 1 is a schematic diagram of the architecture of the present invention;
FIG. 2 is a schematic diagram of the architecture of the protection terminal of the present invention;
FIG. 3 is a schematic diagram of the architecture of the terrestrial protective relay according to the present invention;
fig. 4 is a schematic diagram of a carrier terminal according to the present invention;
FIG. 5 is a schematic illustration of the ground-to-vehicle emergency safety protection precaution of the present invention;
FIG. 6 is a schematic illustration of the vehicle-to-vehicle emergency safety protection warning of the present invention;
fig. 7 is a schematic diagram of the vehicle-ground-vehicle emergency safety protection warning of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, the present invention provides an emergency safety protection early warning system for early warning field workers, along-line workers and vehicle drivers, comprising a protection terminal 10, a vehicle terminal 30 and a ground protection relay terminal 20, which can implement two-way communication between each two.
The protection terminal 10 communicates with the ground protection relay terminal 20 and the carrier terminal 30, authorizes the temporary movement authority of the carrier, edits and sends message information, and carries out early warning on workers through light and sound; a plurality of ground protection relay terminals 20 can be arranged to form a transmission link, relay and transmit information sent from the protection terminal 10 and the carrier terminal 30, and transmit warning and ranging radio waves to warn people along the line through light and sound; the vehicle terminal 30, which is in mutual communication with the protection terminal 10, the ground protection relay terminal 20 and other vehicle terminals 30, analyzes the position of the vehicle, receives the temporary movement authority, edits and sends message information, and sends the running state information of the vehicle to the outside.
In the emergency safety protection early warning system, the ground protection relay terminal 20 is arranged at intervals along the route and used for transmitting warning and ranging signals, transmitting bidirectional interactive information between the protection terminal 10 and the carrier terminal 20, and early warning is carried out on personnel along the route through light and sound. The protection terminal 10 is used for receiving the carrier position information, sending and authorizing the temporary carrier moving permission, editing and sending message information, and giving an early warning to the staff through light and sound. The carrier terminals 20 are arranged on corresponding carriers and used for receiving ground protection relay terminal signals, protection terminal signals and other carrier terminal signals, analyzing the position of the carrier, receiving temporary movement authority, editing and sending message information, and sending the running state information of the carrier outwards, wherein the temporary movement authority comprises a maximum running position and a temporary speed limit.
The carrier position is described by calculating the mileage L between the protection terminal and the carrier terminal, specifically as follows:
in the formula: m is the number of ground protection relay terminals between the carrier terminal and the protection terminal, delta t1When the transmission time of the warning ranging signal transmitted by the protection terminal is larger than or equal to 2, delta ti is the transmission time of the warning ranging signal of the ith-1 ground protection middle end, and delta tm+1And C is the speed of light, and the transmission time of the warning ranging signal transmitted by the mth ground protection terminal received by the carrier terminal is the speed of light.
The maximum driving position in the temporary movement authority is determined by the staff according to the specific situation of the site, when the line has the passing capacity, the limitation is not carried out, and when the line does not have the passing capacity, the maximum driving position is preferably 200m or more away from the position where the protection terminal is located; the temporary speed limit is determined by the staff according to the specific situation of the site, when the line does not have the ability of the same line, the speed of the position reaching the maximum safe distance is required to be 0km/h, and when the line has the ability of passing, the temporary speed limit is the maximum speed under the condition of ensuring the safety, and is generally set to be 20 km/h.
As shown in fig. 2, the shield terminal 10 includes the following parts:
the first mobile power supply module 110 is used for supplying power to each module of the protection terminal;
the first information processing module 120 is configured to process information received by the omnidirectional radio transceiver module 160 and information input by the human-machine interface module 150, calculate time information of the vehicle reaching the current position, and drive the first light warning module 130 and the first voice warning module 140 to perform corresponding warning;
the first light warning module 130 is communicated with the first information processing module 120 and used for prompting a worker that the time of the carrier reaching the current position is reached in a visual warning mode, a green light is normally on to indicate that no vehicle exists, a green light flashes to indicate that the carrier passes the current position after 5 minutes, a yellow light is normally on to indicate that the carrier passes the current position after 4 minutes, a yellow light flashes to indicate that the carrier passes the current position after 3 minutes, a red light flashes to indicate that the carrier passes the current position after 2 minutes, and a red light is normally on to indicate that the carrier passes the current position after 1 minute;
the first voice warning module 140 is communicated with the first information processing module 120, and is used for prompting the time when the carrier reaches the current position by means of auditory warning, automatically broadcasting that the vehicle is about to pass after x minutes, and keeping the first voice warning module silent when the vehicle does not exist;
a human-machine interface module 150, which is communicated with the first information processing module 120, displays the information content, the carrier number and the time information sent by the carrier terminal, generates the temporary movement authority for the specific carrier, and edits the message information for the specific carrier;
and an omni-directional radio transceiver module 160, which is communicated with the first information processing module 120, and is configured to receive the ground protection relay terminal information and the carrier terminal information, and transmit a warning ranging signal, message information, and temporary mobility right information. The warning ranging signal adopts a protocol mode to transmit a short message containing a transmission time stamp, and a receiver calculates the distance according to the transmission time and the arrival time difference of the warning ranging signal.
As shown in fig. 3, the ground protection relay terminal 20 includes the following components:
the second mobile power supply module 210 is used for supplying power to each module of the protection terminal;
the second information processing module 220 is configured to process information received by the first directional radio transceiver module 250 and the second directional radio transceiver module 260, calculate time information of the vehicle reaching the current position, and drive the second light warning module 230 and the second voice warning module 240 to perform corresponding warning;
the second light warning module 230 is communicated with the second information processing module 220 and used for prompting the time of the carrier reaching the current position of the personnel along the line in a visual warning mode, a green light is normally on to indicate that no vehicle exists, a green light flashes to indicate that the carrier passes through the current position after 5 minutes, a yellow light is normally on to indicate that the carrier passes through the current position after 4 minutes, a yellow light flashes to indicate that the carrier passes through the current position after 3 minutes, a red light flashes to indicate that the carrier passes through the current position after 2 minutes, and a red light is normally on to indicate that the carrier passes through the current position after 1 minute;
the second voice warning module 240 is communicated with the second information processing module 220 and used for prompting the time of the personnel carrier along the line reaching the current position in an auditory warning mode, automatically broadcasting that the vehicle is about to pass after x minutes, and keeping silent when the vehicle does not exist;
the first directional radio transceiver module 250, which is communicated with the second information processing module 220, is used for receiving the warning ranging signal and the protection terminal signal of the safety protection side, forwarding the protection terminal signal to the backward safety protection side, and simultaneously transmitting the warning ranging signal and the distance measurement information to the backward safety protection side;
and the second directional radio transceiver module 260 is communicated with the second information processing module 220, and is configured to receive the vehicle terminal signal facing away from the safety protection side and the other ground protection relay terminal signal, and forward the signals to the safety protection side.
In some embodiments, the second light warning module of the ground protection relay terminal further comprises a link indicator light, wherein when the relay link is kept clear, the link indicator light is displayed in green, otherwise, the link indicator light is displayed in red. The relay link refers to a radio communication channel formed among the protection terminal, the ground protection relay terminal and the carrier terminal.
The placement position of the ground protection relay terminal 20 needs to be set according to the terrain, the visibility condition and the emergency safety protection early warning range. The effective warning early warning range of the protection terminal 10, the carrier terminal 30 and the ground protection relay terminal 20 is limited to be related to the maximum transmissible distance, the emergency safety protection early warning range can be enlarged by setting a plurality of ground protection relay terminals 20, and the emergency safety protection early warning range D in a certain direction is calculated according to the following formula:
in the formula,. DELTA.tiThe time for signal propagation between the ith adjacent ground protection relay terminals or between the ground protection relay terminals and the protection terminal, C is the speed of light, and is generally 30 × 104km/h。
The coverage range of the emergency safety protection early warning range D is required to meet the requirement of maximum speed limit
Travel maximum response reserve time
The maximum speed limit driving distance, namely:
as shown in fig. 4, the carrier terminal 30 includes the following parts:
a third mobile power module 310, configured to supply power to each module of the vehicle terminal;
the third information processing module 320 is configured to process information received by the third directional radio transceiver module 360 and the fourth directional radio transceiver module 370 and information input by the DMI module, calculate time information of the vehicle reaching the safety protection position, and drive the light warning module and the voice warning module to perform corresponding early warning;
the third light warning module 330 is communicated with the third information processing module 320 and used for prompting the driver of the time when the vehicle reaches the safety protection position in a visual warning mode, a green light is normally on to indicate that no safety protection road section exists in the current path, a green light flashes to indicate that the vehicle passes through the safety protection position after 5 minutes, a yellow light is normally on to indicate that the vehicle passes through the safety protection position after 4 minutes, a yellow light flashes to indicate that the vehicle passes through the safety protection position after 3 minutes, a red light flashes to indicate that the vehicle passes through the safety protection position after 2 minutes, and a red light is normally on to indicate that the vehicle passes through the safety protection position after 1 minute;
the third voice warning module 340 is communicated with the third information processing module 320 and used for prompting the time when the vehicle reaches the safety protection position in an auditory warning mode, automatically broadcasting that the vehicle is about to pass after x minutes, and keeping silent when the vehicle does not exist;
the DMI module 350 is communicated with the third information processing module 320, and displays temporary mobility rights, message contents, time information, and distance information sent by the protection terminal, and edits the message information;
the third directional radio transceiver module 360 is communicated with the third information processing module 320 and is used for receiving the warning and ranging signal of the safety protection side, the signal of the protection terminal and the signal of the ground protection relay terminal and sending the self movement information and the ranging information of the carrier to the safety protection side;
and a fourth directional radio transceiver module 370, which is communicated with the third information processing module 320, and is configured to receive other vehicle terminal signals and transmit a warning ranging signal to the side away from the safety protection side.
Since the protection terminal 10, the carrier terminal 30 and the ground protection relay terminal 20 can communicate with each other, the emergency safety protection early warning system of the present invention can be applied to various emergency scenes, including a ground-vehicle emergency safety protection early warning scene, a vehicle-ground-vehicle emergency safety protection early warning scene, etc.
As shown in fig. 5, in the ground-vehicle emergency safety protection early warning scenario, the emergency safety protection early warning system is deployed as follows:
arranging a protection terminal 410 at the emergency safety protection site 400, wherein the protection terminal 410 transmits warning ranging signals and temporary moving permission to the surroundings through an omnidirectional radio transceiver module;
the vehicle terminal 431 to which the vehicle 430 belongs receives the vehicle temporary movement authority and message information transmitted by the protection terminal 410 through the relay of the ground protection relay terminals 421 and 422 and the warning ranging signal transmitted by the nearest ground protection relay terminal 422, calculates the distance from the vehicle 430 to each ground protection relay terminal and the protection terminal 410, executes the temporary movement authority command, and transmits the running state information of the vehicle to the outside, wherein 432 is a fourth directional radio transceiver module of the vehicle terminal 431;
the same procedure is executed by the facing vehicle 450, the vehicle terminal 451, the fourth directional radio transceiver module 452, and the ground protection relay 441;
the protection terminal 410 issues safety protection early warning information to workers through the light warning module and the voice warning module according to the distance measuring information; the ground protection relay terminals 422, 421 and 441 issue safety protection early warning information to the personnel along the line through the light warning module and the voice warning module according to the ranging information; the carrier terminals 431 and 451 issue safety protection early warning information to the driver through the light warning module and the voice warning module to which the carrier terminals belong according to the distance measuring information.
As shown in fig. 6, the safety protection early warning scenario that a vehicle is abnormal but can leave a line is a vehicle-vehicle emergency safety protection early warning scenario, and the emergency safety protection early warning system is laid as follows:
when the vehicle 500 is abnormal but can leave the line by itself, the vehicle terminal 510 sends out the running state of the vehicle and sends a warning and ranging signal backwards through the fourth directional radio transceiver module 520 of the vehicle terminal 510;
the vehicle 600 is the nearest vehicle behind the vehicle 500, the vehicle terminal 610 that belongs to receives the abnormal information of the vehicle 500, calculates the distance, performs emergency safety protection early warning to the driver through the light warning module and the voice warning module that belong to, and continues to transmit signals backwards through the fourth directional radio transceiver module 620.
As shown in fig. 7, based on the embodiment of fig. 6, when a vehicle is abnormal, a security early warning scene that a vehicle is paralyzed and cannot move on a line is a vehicle-ground-vehicle emergency security early warning scene, and the emergency security early warning system is arranged as follows:
when the vehicle 500 is abnormal and fails to move on the line, the vehicle terminal 510 sends out the running state of the vehicle and sends a warning ranging signal backwards through the fourth directional radio transceiver module 520 of the vehicle terminal 510;
the driver arranges ground protection relay terminals 710 and 720 in the driving direction of the line where the carrier is located so as to expand the emergency safety protection early warning range;
the vehicle 600 is the nearest vehicle behind the vehicle 500, the vehicle terminal 610 receives the abnormal information of the vehicle 500 relayed and propagated through the ground protection relay terminals 710 and 720, calculates the distance, carries out emergency safety protection early warning to the driver through the light warning module and the voice warning module, and continuously transmits signals backwards through the fourth directional radio transceiver module 620.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (4)
1. An emergency safety protection early warning system is characterized in that the system is used for giving early warning to field workers, along-line personnel and vehicle drivers, and comprises a protection terminal, a vehicle terminal and a ground protection relay terminal which can realize two-way communication between two, wherein,
the protection terminal is arranged at an emergency safety protection place and used for receiving carrier information, sending and authorizing temporary carrier moving permission, acquiring and sending message information and generating a light early warning signal and a voice early warning signal;
the carrier terminals are arranged on corresponding carriers, are in communication connection with the protection terminals, the ground protection relay terminals or other carrier terminals, and are used for analyzing the position of the carrier, receiving temporary movement authority, acquiring and sending message information, generating light early warning signals and voice early warning signals and sending the running state information of the carrier outwards;
the ground protection relay terminal is arranged at intervals along the route, performs relay transmission of bidirectional interaction information between the protection terminal and the carrier terminal, and is used for transmitting a warning and ranging signal and generating a light early warning signal and a voice early warning signal;
the ground protection relay terminal comprises a second mobile power supply module, a second information processing module, a second light warning module, a second voice warning module, a first directional radio transceiver module and a second directional radio transceiver module, wherein,
the second mobile power supply module is used for supplying power to each module of the ground protection relay terminal;
the second information processing module is used for processing the information received by the first directional radio transceiver module and the second directional radio transceiver module, calculating the time information of the carrier reaching the current position, and driving the second light warning module and the second voice warning module to perform corresponding early warning;
the second light warning module is connected with the second information processing module and used for generating a light early warning signal corresponding to the time when the carrier reaches the current position in a visual warning mode;
the second voice warning module is connected with the second information processing module and used for generating a voice early warning signal corresponding to the light signal in an auditory warning mode;
the first directional radio transceiver module is connected with the second information processing module and used for receiving the warning ranging signal and the protection terminal signal at the safety protection side, forwarding the protection terminal signal to the backward safety protection side and simultaneously transmitting the warning ranging signal and the distance measurement information to the backward safety protection side;
the second directional radio transceiver module is connected with the second information processing module and used for receiving a carrier terminal signal or other ground protection relay terminal signals back to the safety protection side and forwarding the signals to the safety protection side;
the carrier terminal comprises a third mobile power supply module, a third information processing module, a third light warning module, a third voice warning module, a DMI module, a third directional radio transceiver module and a fourth directional radio transceiver module, wherein,
the third mobile power supply module is used for supplying power to each module of the carrier terminal;
the third information processing module is used for processing information received by the third directional radio transceiver module and the fourth directional radio transceiver module and information input by the DMI module, calculating time information from the carrier to a safety protection position, and driving the third light warning module and the third voice warning module to perform corresponding early warning;
the third light warning module is connected with the third information processing module and used for generating a light early warning signal corresponding to the time when the carrier reaches the current position in a visual warning mode;
the third voice warning module is connected with the third information processing module and used for generating a voice early warning signal corresponding to the light signal in an auditory warning mode;
the DMI module is connected with the third information processing module, displays temporary moving authority, message content, time information and distance information, and receives edited message information;
the third directional radio transceiver module is connected with the third information processing module and used for receiving the warning and ranging signal of the safety protection side, the protection terminal signal and the ground protection relay terminal signal and sending the self motion information and the ranging information of the carrier to the safety protection side;
the fourth directional radio transceiver module is connected with the third information processing module and used for receiving other carrier terminal signals and transmitting warning and ranging signals to the backward safety protection side;
the temporary moving permission comprises a maximum driving position and a temporary speed limit, the set number of the ground protection relay terminals is determined according to an emergency safety protection early warning range D, and the emergency safety protection early warning range D meets the requirement of the maximum speed limit
Travel maximum response reserve time
Maximum speed limit travel distance of:
in the formula,. DELTA.tiC is the time of signal propagation between the ith adjacent ground protection relay terminals or between the ground protection relay terminal and the protection terminal, and is the speed of light.
2. The emergency safety protection early warning system of claim 1, wherein at least 0 ground protection relay terminals are provided.
3. The emergency safety protection early warning system of claim 1, wherein the protection terminal comprises a first mobile power supply module, a first information processing module, a first light warning module, a first voice warning module, a man-machine operation interface module and an omnidirectional radio transceiver module, wherein,
the first mobile power supply module is used for supplying power to each module of the protection terminal;
the first information processing module is used for processing the information received by the omnidirectional radio transceiver module and the information input by the man-machine operation interface module, calculating the time information of the carrier reaching the current position, and driving the first light warning module and the first voice warning module to perform corresponding early warning;
the first light warning module is connected with the first information processing module and used for generating a light early warning signal corresponding to the time when the carrier reaches the current position in a visual warning mode;
the first voice warning module is connected with the first information processing module and used for generating a voice early warning signal corresponding to the light signal in an auditory warning mode;
the man-machine operation interface module is connected with the first information processing module, displays carrier information, and acquires temporary movement authority and message information of a specific carrier;
the omnidirectional radio transceiver module is connected with the first information processing module and used for receiving carrier information and transmitting a warning ranging signal, message information and temporary mobility authority information.
4. The emergency safety protection and early warning system of claim 1, wherein the second light warning module further comprises a link indicator light for displaying whether the relay link is clear.
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