Applicable to intercom and warning voice broadcast system for maintenance train operation vehicles

Abstract

Provided is an intercom and warning voice broadcast system suitable for maintenance train operation vehicles, belonging to the field of rail transit communication technology. This system mainly includes multi-party voice intercom and automatic warning voice broadcast functions, which are used to meet the needs of multi-party voice intercom for maintenance train operation vehicle platform personnel, driver personnel, and command room personnel and voice coverage of each operation platform. It is not only convenient for personnel on the operation platform to receive the operation instructions issued by the personnel in the vehicle in real time, but also can achieve the purpose of instant communication and rapid communication. It has the advantages of low operating cost and no call charges, and improves the reliability, stability, safety and intelligence level of the system. Moreover, the present invention integrates the automatic warning voice broadcast function and the intercom function into an integrated structure. The integrated structure design is more convenient for installation and fixation. The two functional signals are processed in a branch path. When one of the signals fails, it will not affect the work of the other signal, and the degree of integration is high.

Description

Technical Field

[0001] The invention belongs to the technical field of rail transit communication, and in particular relates to an intercom and warning voice broadcasting system suitable for maintenance train operation vehicles. Background Art

[0002] In recent years, my country's railway has achieved leapfrog development. By 2020, the national railway operating mileage will reach 120,000 kilometers, the main busy trunk lines will realize passenger and freight separation, and the double-track rate and electrification rate will reach 50%. With the rapid development of the railway transportation system, higher requirements are also put forward for the operation safety of railway power supply equipment. The good condition of the electrified railway contact network is the basis for the safe and high-speed operation of the railway. Therefore, higher requirements are also put forward for the quality of track equipment maintenance. The railway maintenance train operation car is the main vehicle to ensure the maintenance of track equipment, and the existing maintenance train operation car is difficult to adapt to the high-speed, efficient and high-reliability maintenance requirements under the new situation. The maintenance train operation car is generally long, including the driver's cab, command car and multiple operation cars. There is no voice broadcast warning system connected between the cars. When a platform of the operation car rises, descends or other operating states are abnormal, the staff on other operation cars cannot be reminded in time, which affects the implementation of the maintenance train instructions and reduces work efficiency. Therefore, it is necessary to propose improvements. Summary of the invention

[0003] The technical problem solved by the present invention is to provide an intercom and warning voice broadcast system suitable for maintenance train operation vehicles. The present invention meets the needs of multi-party voice intercom among various staff members of the maintenance train operation vehicles and the voice coverage of various operation platforms, so that personnel on the operation platforms can receive the operation instructions issued by personnel in the vehicle in real time, and can achieve the purpose of instant communication and rapid communication. It has the advantages of low operating cost and no call charges, and improves the reliability, stability, safety and intelligence level of the system.

[0004] The technical solution adopted by the present invention is: an intercom and warning voice broadcast system suitable for maintenance train operation vehicles, including a driver's cab of car No. 01, operation vehicles No. 02-05, control vehicle No. 06, operation vehicles No. 07-10, command vehicle No. 11 and driver's cab of car No. 12, which constitute the maintenance train operation vehicles. The control vehicle No. 06 is provided with a wired and wireless mutual conversion automatic warning voice broadcast terminal and a main wireless intercom, and the main wireless intercom is wiredly connected to the wired and wireless mutual conversion automatic warning voice broadcast terminal. The driver's cab of car No. 01, command vehicle No. 11 and driver's cab of car No. 12 are all provided with a wired and wireless mutual conversion automatic warning voice broadcast terminal. There are wired intercoms, which are all wiredly connected to the wired and wireless automatic warning voice broadcast terminal. The No. 02-05 work vehicles and No. 07-10 work vehicles are all equipped with PLC controllers, loudspeaker warning voice broadcast terminals and sub-wireless intercoms. The loudspeaker warning voice broadcast terminal on each work vehicle is connected to the PLC controller on the vehicle, the loudspeaker warning voice broadcast terminal is wiredly connected to the wired intercoms in the driver's cab of No. 01 vehicle, No. 11 command vehicle and No. 12 vehicle, and the sub-wireless intercom is wirelessly connected to the main wireless intercom.

[0005] To further limit the above technical solution, RS485 bus is used to realize wired connection between the main wireless intercom and the wired-wireless automatic warning voice broadcast terminal, between the wired intercom and the wired-wireless automatic warning voice broadcast terminal, and between the loudspeaker warning voice broadcast terminal and the wired intercom.

[0006] As a further limitation of the above technical solution, the branch wireless intercom is wirelessly connected to the main wireless intercom via a 400M bus.

[0007] To further limit the above technical solution, on the No. 02-05 work vehicles and the No. 07-10 work vehicles, the loudspeaker warning voice broadcast terminal on each work vehicle includes a loudspeaker, and the loudspeaker is installed on the work platform of the corresponding work vehicle.

[0008] As a further limitation of the above technical solution, the loudspeaker adopts a horn speaker with waterproof function.

[0009] To further limit the above technical solution, the No. 10 work vehicle is provided with a conference room, the conference room is provided with a desktop microphone, and the desktop microphone is wired to the loudspeaker warning voice broadcast terminal on the No. 10 work vehicle.

[0010] The advantages of the present invention compared with the prior art are:

[0011] 1. This solution mainly includes multi-party voice intercom and automatic warning voice broadcast functions, which are used to meet the needs of multi-party voice intercom among maintenance train operation platform personnel, driver personnel, command room personnel, etc. and voice coverage of each operation platform, so that personnel on the operation platform can receive the operation instructions issued by the personnel in the car in real time, meet the voice intercom of the maintenance train, the warning voice broadcast needs of the platform, and the voice communication of the connected vehicles, improve the reliability and stability of the system, and at the same time improve the safety and intelligence level of the whole vehicle;

[0012] 2. This solution integrates the automatic warning voice broadcast function and the intercom function into an integrated structure. The integrated structure design is easier to install and fix. The two functional signals are processed in separate channels. When one of the signals fails, it will not affect the work of the other channel.

[0013] 3. In this scheme, the wired intercom and wireless intercom communication have the advantages of instant communication, one call and hundreds of responses, economical and practical, fast communication, low operating cost, and no call charges;

[0014] 4. This solution uses voice digitization technology to digitize the voice, and then transmits the digital signal in RS485 bus mode to achieve half-duplex bus communication of the system. Nodes can be added at any position of the bus to facilitate future system expansion. In addition, RS485 bus is used for wired connection, which has many advantages such as strong anti-electromagnetic interference ability, low distortion, and high speaker output signal-to-noise ratio.

[0015] 5. The loudspeaker in this solution adopts a waterproof horn speaker, which can adapt to long-term use in harsh outdoor environments and meet the requirements of sound transmission distance. It has good moisture-proof and humidity-proof performance and higher sound efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a system topology diagram of the present invention;

[0017] Figure 2 It is a system principle diagram of the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0020] See also Figure 1-2 , describe the embodiments of the present invention in detail.

[0021] The intercom and warning voice broadcast system applicable to the maintenance train operation car includes the driver's cab of car No. 01, the operation cars No. 02-05, the control car No. 06, the operation cars No. 07-10, the command car No. 11 and the driver's cab of car No. 12, the control car No. 06 is provided with a wired and wireless mutual conversion automatic warning voice broadcast terminal 1 and a main wireless intercom 2, the main wireless intercom 2 is wiredly connected to the wired and wireless mutual conversion automatic warning voice broadcast terminal 1, the driver's cab of car No. 01, the command car No. 11 and the driver's cab of car No. 12 are all provided with wired intercoms 3, the main wireless intercom 2 is wiredly connected to the wired and wireless mutual conversion automatic warning voice broadcast terminal 1 ... The wired intercoms 3 are all wiredly connected to the wired and wireless mutual conversion automatic warning voice broadcast terminal 1. The No. 02-05 work vehicles and No. 07-10 work vehicles are all equipped with PLC controllers 4, loudspeaker warning voice broadcast terminals 5 and sub-wireless intercoms 7. The loudspeaker warning voice broadcast terminal 5 on each work vehicle is connected to the PLC controller 4 on the vehicle, and the loudspeaker warning voice broadcast terminal 5 is wiredly connected to the wired intercoms 3 on the driver's cab of No. 01 vehicle, No. 11 command vehicle and No. 12 vehicle, and the sub-wireless intercom 7 is wirelessly connected to the main wireless intercom 2. On the No. 02-05 work vehicles and No. 07-10 work vehicles, the loudspeaker warning voice broadcast terminal 5 on each work vehicle includes a loudspeaker 6, and the loudspeaker 6 is installed on the work platform of the corresponding work vehicle. The No. 10 work vehicle is provided with a conference room, in which a desktop microphone 8 is provided. The desktop microphone 8 is connected to the loudspeaker warning voice broadcast terminal 5 on the No. 10 work vehicle by wire.

[0022] The main wireless intercom 2 and the wired-wireless automatic warning voice broadcast terminal 1, the wired intercom 3 and the wired-wireless automatic warning voice broadcast terminal 1, and the loudspeaker warning voice broadcast terminal 5 and the wired intercom 3 are all connected by RS485 bus. The present invention uses voice digitization technology to digitize the voice, and then transmits the digital signal in RS485 bus mode to achieve system half-duplex bus communication. Nodes can be added at any position of the bus to facilitate future system expansion; in addition, the RS485 bus is used for wired connection, which has many advantages such as strong anti-electromagnetic interference ability, low distortion, and high speaker output signal-to-noise ratio.

[0023] The branch wireless intercom 7 is wirelessly connected to the main wireless intercom 2 via a 400M bus.

[0024] The loudspeaker 6 adopts a horn speaker with waterproof function, which can well adapt to long-term use in harsh outdoor environments to meet the requirements of sound transmission distance, has good moisture-proof and humidity-proof performance, and has higher sound efficiency.

[0025] The present invention mainly includes multi-party voice intercom and automatic warning voice broadcast functions, which are used to meet the needs of multi-party voice intercom among maintenance train operation vehicle platform personnel, driver personnel, and command room personnel and voice coverage of each operation platform, so that personnel on the operation platform can receive the operation instructions issued by the personnel in the car in real time, meet the voice intercom of the entire maintenance train, the warning voice broadcast needs of the platform, and the voice communication of the connected vehicles, improve the reliability and stability of the system, and at the same time improve the safety and intelligence level of the entire vehicle.

[0026] The specific functions are as follows:

[0027] 1. Multi-party intercom function

[0028] 1) The voice sent by the wired intercom 3 in the cab of vehicle No. 01, command vehicle No. 11 and the cab of vehicle No. 12 is digitally encoded and then transmitted to the wired and wireless mutual conversion automatic warning voice broadcast terminal 1 installed on the control vehicle No. 06 via the RS485 bus for decoding. The analog voice signal is then transmitted to the main wireless intercom 2 in the wired and wireless mutual conversion automatic warning voice broadcast terminal 1 for transmission; conversely, after the main wireless intercom 2 in the wired and wireless mutual conversion automatic warning voice broadcast terminal 1 receives the signal sent by the branch wireless intercom 7 on other working vehicles, the voice is encoded and then transmitted to each wired intercom 3 through the RS485 bus for decoding and playback. Thus, the half-duplex voice call function between the wired intercom 3 and the wireless intercom is realized. In actual use, the driver's cab of vehicle No. 01, command vehicle No. 11 and the driver's cab of vehicle No. 12 can use the wired intercom 3 to conduct two-way calls with the branch wireless intercom 7 under the vehicle or on the working platform;

[0029] 2) Voice calls between wired intercoms 3. The cab of car No. 01, the cab of command car No. 11 and the cab of car No. 12 can make multi-party calls through wired intercoms 3. The desktop microphone 8 on the work car No. 10 can only send out voices, and the opening and closing of the wired and wireless mutual conversion automatic warning voice broadcast terminal 1 does not affect the calls between wired intercoms;

[0030] 3) A loudspeaker warning voice broadcast terminal 5 is installed in the No. 02-05 work vehicle, No. 06 control vehicle, and No. 07-10 work vehicle. Each loudspeaker warning voice broadcast terminal 5 has a voice decoding and amplification function after being connected to the RS485 bus. The conversation content of the wired intercom 3 and the wireless intercom can be played in real time through the loudspeaker installed on the corresponding work platform, so that the personnel on the work platform can receive the work instructions issued by the personnel in the vehicle in real time.

[0031] 2. Automatic warning voice broadcast function

[0032] Each loudspeaker warning voice broadcast terminal 5 is connected to the PLC controller 4 in each work vehicle. If an abnormality occurs when the work platform on a certain work vehicle is rising, descending or in other operating states, the platform detection system in the vehicle detects the corresponding fault, and then outputs the corresponding fault signal to the loudspeaker warning voice broadcast terminal 5 through the PLC controller 4. The loudspeaker warning voice broadcast terminal 5 installed in the corresponding work vehicle will automatically issue warning voice reminders for different faults through the speaker installed on the work platform.

[0033] The present invention not only facilitates the personnel on the working platform to receive the working instructions issued by the personnel in the vehicle in real time, but also achieves the purpose of instant communication and rapid communication. It has the advantages of low operating cost and no call charges, and improves the reliability, stability, safety and intelligence level of the system. Moreover, the present invention integrates the automatic warning voice broadcast function and the intercom function into an integrated structure. The integrated structure design is more convenient for installation and fixation. The two functional signals are processed in separate channels. When one of the signals fails, it will not affect the work of the other channel, and the degree of integration is high.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. The intercom and warning voice broadcast system for maintenance train operation cars includes the driver's cab of car No. 01, No. 02-05 operation cars, No. 06 control car, No. 07-10 operation cars, No. 11 command car and No. 12 car, which are composed of maintenance train operation cars. It is characterized by: The control vehicle No. 06 is provided with a wired and wireless mutual conversion automatic warning voice broadcast terminal (1) and a main wireless intercom (2), and the main wireless intercom (2) is connected to the wired and wireless mutual conversion automatic warning voice broadcast terminal (1) by wire. The driver's cab of the vehicle No. 01, the command vehicle No. 11 and the driver's cab of the vehicle No. 12 are all provided with wired intercoms (3), and the wired intercoms (3) are all connected to the wired and wireless mutual conversion automatic warning voice broadcast terminal (1) by wire. The operation vehicles No. 02-05 and No. 03 are provided with wired intercoms (3). The No. 7-10 working vehicles are all provided with a PLC controller (4), a loudspeaker warning voice broadcast terminal (5) and a sub-wireless intercom (7). The loudspeaker warning voice broadcast terminal (5) on each working vehicle is connected to the PLC controller (4) on the vehicle, the loudspeaker warning voice broadcast terminal (5) is wiredly connected to the wired intercoms (3) on the driver's cab of the No. 01 vehicle, the No. 11 command vehicle and the No. 12 vehicle, and the sub-wireless intercom (7) is wirelessly connected to the main wireless intercom (2).

2. The intercom and warning voice broadcast system for maintenance train operation vehicles according to claim 1 is characterized in that: The RS485 bus is used to realize wired connection between the main wireless intercom (2) and the wired / wireless automatic warning voice broadcast terminal (1), between the wired intercom (3) and the wired / wireless automatic warning voice broadcast terminal (1), and between the loudspeaker warning voice broadcast terminal (5) and the wired intercom (3).

3. The intercom and warning voice broadcast system for maintenance train operation vehicles according to claim 1 is characterized in that: The branch wireless intercom (7) and the main wireless intercom (2) are wirelessly connected via a 400M bus.

4. The intercom and warning voice broadcast system for maintenance train operation vehicles according to claim 1 is characterized in that: On the No. 02-05 work vehicles and the No. 07-10 work vehicles, the loudspeaker warning voice broadcast terminal (5) on each work vehicle includes a loudspeaker (6), and the loudspeaker (6) is installed on the work platform of the corresponding work vehicle.

5. The intercom and warning voice broadcast system for maintenance train operation vehicles according to claim 4 is characterized in that: The loudspeaker (6) is a horn speaker with waterproof function.

6. The intercom and warning voice broadcast system for maintenance train operation vehicles according to claim 1 is characterized in that: The No. 10 operation vehicle is provided with a conference room, in which a desktop microphone (8) is provided, and the desktop microphone (8) is wiredly connected to the loudspeaker warning voice broadcast terminal (5) on the No. 10 operation vehicle.

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