CN111817808A - Digital train tail emergency radio station and implementation method thereof - Google Patents
Digital train tail emergency radio station and implementation method thereof Download PDFInfo
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- CN111817808A CN111817808A CN202010794902.2A CN202010794902A CN111817808A CN 111817808 A CN111817808 A CN 111817808A CN 202010794902 A CN202010794902 A CN 202010794902A CN 111817808 A CN111817808 A CN 111817808A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 18
- 230000005236 sound signal Effects 0.000 claims description 6
- 230000003137 locomotive effect Effects 0.000 description 11
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
- H04H20/62—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast for transportation systems, e.g. in vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3822—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving specially adapted for use in vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- Engineering & Computer Science (AREA)
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- Computer Networks & Wireless Communication (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a digital train tail emergency radio station and an implementation method thereof. The radio station comprises a switching power supply chip, an ARM processor chip, a storage chip, a digital channel machine, a liquid crystal display screen, a backlight driving chip, an audio power amplifier chip, a loudspeaker and a keyboard; the battery of the digital channel machine supplies power to the equipment, and the switching power supply chip converts the supply voltage; the ARM processor chip is used for controlling and managing the digital channel machine, collecting keyboard key information and receiving and sending column tail data through the digital channel machine; the display of the column tail and the operation information is carried out through the liquid crystal display screen, and backlight drive is provided for the liquid crystal display screen through a backlight drive chip; voice broadcasting is carried out through the audio power amplifier chip and the loudspeaker; storing configuration information and record data through a memory chip; and the digital mode column tail communication and data recording are realized.
Description
Technical Field
The invention relates to a train tail safety protection system, in particular to a digital train tail emergency radio station capable of replacing a dual-mode train tail locomotive radio station to carry out train tail communication in a 400MHz digital mode and an implementation method thereof.
Background
The train tail safety protection system is mature and applied to railways in China for many years, and plays an important role in guaranteeing railway driving safety and improving transportation efficiency. At present, a 400MHz digital + GSM-R dual-mode cargo train tail safety protection system is comprehensively popularized in China, has two communication modes of 400MHz digital and GSM-R, and mainly comprises a dual-mode train tail locomotive radio station, a train tail host and auxiliary equipment. When the dual-mode train tail locomotive radio station equipment fails to perform train tail communication due to equipment self problems or other reasons during train operation, the equipment generally needs to be stopped to troubleshoot the failure reasons of the equipment for repairing or replacing the equipment, the installation environment space of the train equipment is narrow, the operation difficulty of the equipment for repairing or replacing the train equipment on the train is high, the consumed time is long, and adverse effects can be generated on the running safety and the transportation efficiency of the railway. In field application, a portable emergency device is needed to replace a dual-mode train tail locomotive radio station to carry out train tail communication when the dual-mode train tail locomotive radio station fails, and train operation can be quickly recovered.
Disclosure of Invention
In view of the problems in the prior art, the invention provides a digital train tail emergency radio station and an implementation method thereof, which can replace a dual-mode train tail locomotive radio station to carry out train tail communication in a 400MHz digital mode, in order to meet the requirement that the train tail communication can be quickly recovered when the train tail locomotive radio station fails in the railway running process.
The technical scheme adopted by the invention is as follows: a digit train tail emergency radio station which characterized in that: the system comprises a switching power supply chip with the model of LM22670, an ARM processor chip with the model of LPC4357, a memory chip with the model of MX66L51 51235F, a digital channel machine with the model of TK-D348R, a liquid crystal display screen with the model of G043FW01, a backlight driving chip with the model of TPS61165, an audio power amplifier chip with the model of SSM3302, a loudspeaker with the model of HBYDT0306-1APZ and a keyboard; the input end of the switch power supply chip is connected with a battery power supply output interface of the digital channel machine, and the output end of the switch power supply chip is connected with a DC3.3V power supply interface of the equipment; the UART1 interface of the ARM processor chip is connected with a UART1 interface of a digital channel machine, the GPIO interface is connected with a keyboard, the SPI _ FLASH interface is connected with a storage chip, and the display control LCD interface is connected with a data interface of a liquid crystal display screen; the input end of the backlight driving chip is connected with a battery power supply output interface of the digital channel machine, and the output end of the backlight driving chip is connected with a backlight power supply interface of the liquid crystal display screen; the input end of the audio power amplifier chip is connected with the DAC interface of the ARM processor, and the output end of the audio power amplifier chip is connected with the loudspeaker.
The invention discloses a method for realizing a digital train tail emergency radio station, which comprises the following steps: the power supply of a digital channel machine battery DC 7.4V is converted into DC3.3V by a switching power supply chip and then is supplied to equipment; the ARM processor chip controls and manages the digital channel machine through a UART1 interface, transmits the train tail communication data to be transmitted to the digital handheld station channel machine, then wirelessly transmits the train tail communication data through the digital handheld station channel machine, receives the wireless train tail communication data through the digital handheld station channel machine, and transmits the wireless train tail communication data to the ARM processor chip for processing, so that the train tail communication data in a 400MHz digital mode are transmitted and received; the ARM processor chip collects and processes keyboard key information through the GPIO interface, performs data communication with the storage chip through the SPI _ FLASH interface, realizes storage and reading of configuration information and recording data, and controls the liquid crystal display screen to display column tail and operation information through the display control LCD interface; the backlight driving chip is used for converting DC 7.4V power supply of a digital channel machine battery into DC 26V power supply to provide backlight driving for the liquid crystal display screen; and the audio power amplifier chip amplifies the audio signals output by the DAC interface of the ARM processor and transmits the amplified audio signals to a loudspeaker for voice broadcasting.
The invention has the beneficial effects that: the train tail communication method has the advantages that when the train tail locomotive radio station fails in the railway running process, the train tail communication can be carried out in a 400MHz digital mode instead of a dual-mode train tail locomotive radio station, and train running can be quickly recovered.
Drawings
Fig. 1 is a schematic diagram of the circuit of the present invention.
Detailed Description
For a more clear understanding of the present invention, reference is now made to the following detailed description taken in conjunction with the accompanying drawings and examples.
As shown in fig. 1, a digital train tail emergency station is characterized in that: the system comprises a switching power supply chip with the model number of LM22670, an ARM processor chip with the model number of LPC4357, a storage chip with the model number of MX66L51 51235F, a digital channel machine with the model number of TK-D348R, a liquid crystal display screen with the model number of G043FW01, a backlight driving chip with the model number of TPS61165, an audio power amplifier chip with the model number of SSM3302, a loudspeaker with the model number of HBYDT0306-1APZ and a keyboard.
The input end of the switch power supply chip is connected with a battery power supply output interface of the digital channel machine, and the output end of the switch power supply chip is connected with a power supply interface of the device DC3.3V; the digital channel machine battery DC 7.4V power supply is converted into DC3.3V power supply through the switching power supply chip, and then the power supply is supplied to the equipment.
The UART1 interface of the ARM processor chip is connected with a UART1 interface of a digital channel machine, the GPIO interface is connected with a keyboard, the SPI _ FLASH interface is connected with a storage chip, and the display control LCD interface is connected with a data interface of a liquid crystal display screen; the ARM processor chip controls and manages the digital channel machine through a UART1 interface, transmits the train tail communication data to be transmitted to the digital handheld station channel machine, then wirelessly transmits the train tail communication data through the digital handheld station channel machine, receives the wireless train tail communication data through the digital handheld station channel machine, and transmits the wireless train tail communication data to the ARM processor chip for processing, so that the train tail communication data in a 400MHz digital mode are transmitted and received; the ARM processor chip acquires and processes keyboard key information through the GPIO interface; the SPI _ FLASH interface is used for carrying out data communication with the storage chip to realize the storage and reading of configuration information and record data; and controlling the liquid crystal display screen to display the column tail and the operation information through the display control LCD interface.
The input end of the backlight driving chip is connected with a battery power supply output interface of the digital channel machine, and the output end of the backlight driving chip is connected with a backlight power supply interface of the liquid crystal display screen; the digital channel machine battery DC 7.4V power supply is converted into DC 26V through the backlight driving chip, and backlight driving is provided for the liquid crystal display screen.
The input end of the audio power amplifier chip is connected with a DAC interface of the ARM processor, and the output end of the audio power amplifier chip is connected with a loudspeaker; and the audio power amplifier chip amplifies the audio signals output by the DAC interface of the ARM processor and transmits the amplified audio signals to a loudspeaker for voice broadcasting.
The invention realizes train tail communication in 400MHz digital mode instead of the dual-mode train tail locomotive radio station when the dual-mode train tail locomotive radio station has fault in the railway running process, and the train operation is quickly recovered.
Claims (2)
1. A digit train tail emergency radio station which characterized in that: the system comprises a switching power supply chip with the model of LM22670, an ARM processor chip with the model of LPC4357, a memory chip with the model of MX66L51 51235F, a digital channel machine with the model of TK-D348R, a liquid crystal display screen with the model of G043FW01, a backlight driving chip with the model of TPS61165, an audio power amplifier chip with the model of SSM3302, a loudspeaker with the model of HBYDT0306-1APZ and a keyboard; the input end of the switch power supply chip is connected with a battery power supply output interface of the digital channel machine, and the output end of the switch power supply chip is connected with a DC3.3V power supply interface of the equipment; the UART1 interface of the ARM processor chip is connected with a UART1 interface of a digital channel machine, the GPIO interface is connected with a keyboard, the SPI _ FLASH interface is connected with a storage chip, and the display control LCD interface is connected with a data interface of a liquid crystal display screen; the input end of the backlight driving chip is connected with a battery power supply output interface of the digital channel machine, and the output end of the backlight driving chip is connected with a backlight power supply interface of the liquid crystal display screen; the input end of the audio power amplifier chip is connected with the DAC interface of the ARM processor, and the output end of the audio power amplifier chip is connected with the loudspeaker.
2. The method as claimed in claim 1, wherein the digital train tail emergency broadcasting station comprises: the power supply of a digital channel machine battery DC 7.4V is converted into DC3.3V by a switching power supply chip and then is supplied to equipment; the ARM processor chip controls and manages the digital channel machine through a UART1 interface, transmits the train tail communication data to be transmitted to the digital handheld station channel machine, then wirelessly transmits the train tail communication data through the digital handheld station channel machine, receives the wireless train tail communication data through the digital handheld station channel machine, and transmits the wireless train tail communication data to the ARM processor chip for processing, so that the train tail communication data in a 400MHz digital mode are transmitted and received; the ARM processor chip collects and processes keyboard key information through the GPIO interface, performs data communication with the storage chip through the SPI _ FLASH interface, realizes storage and reading of configuration information and recording data, and controls the liquid crystal display screen to display column tail and operation information through the display control LCD interface; the backlight driving chip is used for converting DC 7.4V power supply of a digital channel machine battery into DC 26V power supply to provide backlight driving for the liquid crystal display screen; and the audio power amplifier chip amplifies the audio signals output by the DAC interface of the ARM processor and transmits the amplified audio signals to a loudspeaker for voice broadcasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010794902.2A CN111817808A (en) | 2020-08-10 | 2020-08-10 | Digital train tail emergency radio station and implementation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010794902.2A CN111817808A (en) | 2020-08-10 | 2020-08-10 | Digital train tail emergency radio station and implementation method thereof |
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| Publication Number | Publication Date |
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| CN111817808A true CN111817808A (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010794902.2A Pending CN111817808A (en) | 2020-08-10 | 2020-08-10 | Digital train tail emergency radio station and implementation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983300A (en) * | 2014-05-26 | 2014-08-13 | 天津七一二通信广播有限公司 | Train number device tester |
| CN107994955A (en) * | 2017-12-20 | 2018-05-04 | 天津七二通信广播股份有限公司 | A kind of 400MHz numeric columns tail locomotive station detection device and detection method |
| CN109131443A (en) * | 2018-09-06 | 2019-01-04 | 天津七二通信广播股份有限公司 | A kind of column tail control box and its implementation |
| CN208737456U (en) * | 2018-09-06 | 2019-04-12 | 天津七一二通信广播股份有限公司 | A kind of column tail traffic operation display terminal |
| CN212649481U (en) * | 2020-08-10 | 2021-03-02 | 天津七一二通信广播股份有限公司 | Emergency radio station for digital train tail locomotive |
-
2020
- 2020-08-10 CN CN202010794902.2A patent/CN111817808A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983300A (en) * | 2014-05-26 | 2014-08-13 | 天津七一二通信广播有限公司 | Train number device tester |
| CN107994955A (en) * | 2017-12-20 | 2018-05-04 | 天津七二通信广播股份有限公司 | A kind of 400MHz numeric columns tail locomotive station detection device and detection method |
| CN109131443A (en) * | 2018-09-06 | 2019-01-04 | 天津七二通信广播股份有限公司 | A kind of column tail control box and its implementation |
| CN208737456U (en) * | 2018-09-06 | 2019-04-12 | 天津七一二通信广播股份有限公司 | A kind of column tail traffic operation display terminal |
| CN212649481U (en) * | 2020-08-10 | 2021-03-02 | 天津七一二通信广播股份有限公司 | Emergency radio station for digital train tail locomotive |
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