CN108124125B - Vehicle-mounted video detection method and system - Google Patents
Vehicle-mounted video detection method and system Download PDFInfo
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- CN108124125B CN108124125B CN201611079352.6A CN201611079352A CN108124125B CN 108124125 B CN108124125 B CN 108124125B CN 201611079352 A CN201611079352 A CN 201611079352A CN 108124125 B CN108124125 B CN 108124125B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
Abstract
A vehicle-mounted video detection method and system specifically comprises the steps of acquiring image information of railway track side signal equipment in real time through train vehicle-mounted image acquisition equipment, transmitting the image information to a video detection client through a network, synchronously processing the acquired video information and driving data information by the video detection client, displaying the processed video information and driving data information on a terminal display screen of a video detection system in the train in real time, and enabling the position of a camera of the acquisition equipment to move. The system comprises a camera, a camera support, a camera cradle head, a video detection host, a video detection client and a network switch. The invention has the advantages of solving the problem of great limitation of the traditional test and on-site manual detection methods, and providing a reference basis for analyzing the equipment state of signal detection personnel of the electric test vehicle by collecting, displaying, storing and replaying the image data of the trackside signal equipment.
Description
Technical Field
The invention belongs to the field of railway test car signal video detection, and particularly relates to a method and a system for detecting the state of railway trackside equipment on an electric service test car.
Background
In recent years, the railway construction in China enters a rapid development period, the construction level, the operation speed, the operation mileage and the like reach the world leading level, the corresponding railway informatization construction is also increasing in investment and increasingly updated, various detection systems play an obvious role in the aspects of equipment hidden trouble investigation, safety risk prevention and the like, but video monitoring which is an important component of the railway informatization, particularly the video detection field of a test car, is relatively lagged in development, and the traditional test methods, the on-site manual detection and the like have great limitations and cannot meet the on-site actual test requirements.
In order to facilitate signal detection personnel to observe and record the appearance state of signal equipment beside a track, analyze whether the equipment is damaged or not, install errors or not, judge whether the equipment exceeds a limit, and urgently establish a set of vehicle-mounted video detection system to complete image data acquisition, display, storage and playback of the signal equipment beside the track.
Disclosure of Invention
The invention aims to provide a vehicle-mounted video detection method and system, and particularly relates to a method and system for real-time display on a terminal display screen of a video detection system in a train after a train-mounted image acquisition device acquires image information of railway track side signal equipment in real time and transmits the image information to a video detection client through a network, wherein the video detection client synchronously processes the acquired video information and driving data information, and provides a reference basis for analyzing equipment states of signal detection personnel of a electric test car.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a method of an in-vehicle video detection system, comprising the steps of:
(1) the video acquisition equipment acquires video information of the trackside signal equipment in real time and sends the video information to the video detection client through a network;
(2) the video detection client processes the received video and driving data information, and then plays, stores and plays back the video in real time; meanwhile, the video detection client can send a camera cradle head control command to control the position movement of the camera;
(3) and the video detection host receives and processes the camera holder control command sent by the video detection client, and then controls the position movement of the video acquisition equipment camera.
In the step (1), the video acquisition equipment comprises a camera, a camera bracket and a camera cradle head;
the camera is used for collecting image information of the trackside signal equipment in real time after power is supplied, and then the collected information is transmitted to the video detection client in real time through the network interface;
the camera bracket is used for connecting the camera cradle head and the camera;
the camera holder is used for installing a fixed camera, a stepping motor is arranged in the camera holder, and after a camera holder control command sent by the video detection host is received, the position of the camera is controlled to move through forward rotation and reverse rotation of the stepping motor.
In the step (2), the video detection client is provided with video detection client software, and the software comprises a parameter setting module, a video playing module, a camera holder control module, a video storage module and a video playback module;
the parameter setting module is used for setting an interface IP address and a port number of a server of the signal dynamic detection system, a video acquisition equipment camera code stream address, a camera holder IP address and a port number;
the video playing module is used for playing image picture information of the video acquisition equipment when the system is started and displaying driving information at the same time; the driving data information comprises driving data such as train mileage, time, speed and the like; the client side driving information is sent to the local area network by an external signal dynamic detection system server in a broadcast UDP mode, and the video detection client side receives driving data information packets in real time, analyzes the driving data information packets and then obtains and stores the driving data information packets;
the camera holder control module is used for sending a camera holder control command and controlling the movement of different camera positions;
the video storage module is used for respectively receiving and storing video information and driving information, storing the video information in M P format after receiving the video information, analyzing the driving information in the data packet after receiving the real-time driving information data packet, and synchronously storing the driving information after time calibration;
the video playback module is used for synchronously loading the video file and the corresponding synchronous driving data file at first when the video playback is carried out, then decoding the video file, and synchronously displaying the driving data while displaying the playback picture;
the camera cloud platform control command is sent out through the video detection client, is received and processed through the video detection host CPU module, is sent to the corresponding video detection host video control module CCTV to receive and process, is sent to the camera cloud platform control module after being processed, and finally controls the camera to move in position through the camera cloud platform control module.
In the step (3), the video detection host comprises a power supply module, a CPU module, a video control module CCTV and a bottom plate bus;
the power module converts an input AC220V power supply into DC5V, DC12V, DC V power supplies required by each module, then supplies power to each module of the video detection host through a bottom plate bus, and after the power supply is supplied, the power module indicates a lamp to supply power;
the CPU module is mainly used for receiving and processing camera cradle head commands and outputting the commands to the video control module CCTV; the CPU module is communicated, the communication is completed through the communication control level conversion circuit, the communication is normal or abnormal, and the CPU module indicator lamp is correspondingly displayed;
the video control module CCTV mainly completes control of a camera holder, module state prompt and power supply of video acquisition equipment; the camera holder control module is used for controlling the camera position to move by receiving the control instruction sent by the CPU module, processing the control instruction by the video control circuit and sending the control instruction to the camera holder control module; the video control module CCTV state indicates that when the video control module CCTV is inserted and works normally, the video control module CCTV indicator lights display correspondingly; the detection of the CCTV of the video control module is realized through an insertion detection circuit in the CPU module, and when the CCTV of the video control module is inserted into a video detection host, the CPU module indicator lights correspondingly display;
the bottom plate bus is used for power supply connection and data transmission of the CPU module and the video control module; and the data transmission of the CPU module and the video control module adopts a standard RS232 bus for communication.
A vehicle-mounted video detection system comprises train external equipment and train internal equipment; the train external equipment comprises a camera, a camera bracket and a camera cradle head; the train internal equipment comprises a video detection host, a video detection client and a network switch; the network switch is respectively connected with the camera, the video detection host, the video detection client and the external signal dynamic detection system server; the camera, the video detection host and the video detection client communicate through the network switch.
The camera adopts a network high-speed camera and is used for collecting image information of the trackside equipment; the camera is arranged on the camera holder through a camera bracket; the camera bracket is used for connecting a camera and a metal structural component of a camera holder;
the camera holder is used for installing and fixing a camera bracket and a camera and adjusting the movement of the position of the camera; the camera holder is arranged at the top of the head and the tail of the electric test vehicle.
The video detection host adopts a box assembly case structure and is arranged in the detection cabinet; the video detection host comprises a power supply module, a CPU module, a video control module CCTV and a bottom plate bus; the power module, the CPU module, the video control module CCTV and the bottom plate bus are arranged in the box assembly chassis;
the power supply module is used for supplying power to each module of the video detection host, and the indicator lamp is used for indicating power supply after the power supply is supplied with power; the power module is inserted into a bottom plate bus in the box assembly chassis by adopting a plugboard structure, and is fixed on the box assembly chassis through panel screws;
the CPU module is used for receiving and processing camera holder command information and detecting and communicating CCTV of the video control module; the CPU module is in a plugboard structure and is spliced on a bottom plate bus in the box assembly chassis, and the power supply module is fixed on the box assembly chassis through panel screws;
the video control module CCTV mainly completes control of a camera holder, module insertion indication, signal communication and power supply of video acquisition equipment; the camera pan-tilt control is used for controlling the camera to move in position; the CCTV module is inserted with indication, and when the CCTV module is inserted and works normally, the CCTV module indication lamp displays correspondingly; the CPU module indicator lamp is used for displaying the communication with the bottom plate bus normally or abnormally; the video control module CCTV adopts a plugboard structure, is spliced on a bottom plate bus in the box assembly chassis, and fixes a power supply module on the box assembly chassis through panel screws;
the bottom plate bus is used for power supply connection and communication connection of each module of the video detection host.
The video detection client adopts an industrial computer or an embedded computer and is used for video detection information display, camera holder control command issuing and video information display; the video detection client communicates with the video detection host CPU module through a network interface, and receives video information transmitted by the video camera through the network interface.
According to the technical scheme, the video acquisition equipment is arranged outside the train and used for acquiring video information in real time, the acquired information is transmitted to the video detection client inside the train through the local area network switch, the video detection client plays, stores and plays back video data in real time, and a camera holder control command can be sent to a camera holder to control the position of a camera. It has the following advantages:
(1) The vehicle exterior equipment has the advantages that the camera is connected with the camera holder through the camera support, the structure is simple, the damage to the camera and other equipment during vehicle washing or other limited requirements is well prevented, and meanwhile, the equipment is convenient to detach and clean in an equipment installation mode.
(2) The in-vehicle equipment provided by the invention has the advantages that only the video detection host and the video detection client are provided, the real-time display and control of the external video can be realized, the position of the external camera can be operated, and the operation and the construction are convenient.
(3) The video detection host machine has the advantages that each module is provided with the working state and the communication state indicator lamp for displaying, so that the fault can be positioned in time when the equipment is in fault, and the maintenance is convenient.
Drawings
Fig. 1 is a system overall structure diagram of the present invention.
Fig. 2 is a diagram of a video detection host structure according to the present invention.
Fig. 3 is a software architecture diagram of a video detection client according to the present invention.
Fig. 4 is a flow chart of a camera pan/tilt control command processing according to the present invention.
Detailed Description
As shown in fig. 1, a vehicle-mounted video detection system includes an external train device and an internal train device; the train external equipment comprises a camera, a camera bracket and a camera cradle head; the train internal equipment comprises a video detection host, a video detection client and a network switch; the network switch is respectively connected with the camera, the video detection host, the video detection client and the external signal dynamic detection system server; the camera, the video detection host and the video detection client communicate through a network switch;
a camera is arranged outside the train, the camera collects video image information of the trackside equipment in real time, the collected information is transmitted to a video detection client inside the train through a local area network switch, and the video detection client plays, stores and plays back video data in real time; the detection client can send a camera holder control command to the camera holder and transmit the camera holder control command to the video detection host, and the video detection host controls the camera holder to rotate forwards and backwards by controlling the camera holder to automatically adjust the position of the camera through the internal connecting rod after processing the received control command.
The camera adopts a network high-speed camera and is used for collecting image information of the trackside equipment; the camera is arranged on the camera holder through a camera bracket; the camera bracket is used for connecting a camera and a metal structural component of a camera holder;
the camera holder is used for installing and fixing a camera bracket and a camera and adjusting the movement of the position of the camera; the camera holder is arranged at the top of the head and the tail of the electric test vehicle.
The video detection host adopts a box assembly case structure and is arranged in the detection cabinet; the video detection host as shown in fig. 2 comprises a power module, a CPU module, a video control module CCTV and a backplane bus; the power module, the CPU module, the video control module CCTV and the bottom plate bus are arranged in the box assembly chassis;
the power supply module is used for supplying power to each module of the video detection host, and the indicator lamp is used for indicating power supply after the power supply is supplied with power; the power module is inserted into a bottom plate bus in the box assembly chassis by adopting a plugboard structure, and is fixed on the box assembly chassis through panel screws;
the CPU module is used for receiving and processing camera holder command information and detecting and communicating CCTV of the video control module; the CPU module is in a plugboard structure and is spliced on a bottom plate bus in the box assembly chassis, and the power supply module is fixed on the box assembly chassis through panel screws;
the video control module CCTV mainly completes control of a camera holder, module insertion indication, signal communication and power supply of video acquisition equipment; the camera pan-tilt control is used for controlling the camera to move in position; the CCTV module is inserted with indication, and when the CCTV module is inserted and works normally, the CCTV module indication lamp displays correspondingly; the CPU module indicator lamp is used for displaying the communication with the bottom plate bus normally or abnormally; the video control module CCTV adopts a plugboard structure, is spliced on a bottom plate bus in the box assembly chassis, and fixes a power supply module on the box assembly chassis through panel screws;
the bottom plate bus is used for power supply connection and communication connection of each module of the video detection host.
The video detection client adopts an industrial computer or an embedded computer and is used for video detection information display, camera holder control command issuing and video information display; the video detection client communicates with the video detection host CPU module through a network interface, and receives video information transmitted by the video camera through the network interface.
A method of an in-vehicle video detection system, comprising the steps of:
(1) the video acquisition equipment acquires video information of the trackside signal equipment in real time and sends the video information to the video detection client through a network;
(2) the video detection client processes the received video and driving data information, and then plays, stores and plays back the video in real time; meanwhile, the video detection client can send a camera cradle head control command to control the position movement of the camera;
(3) and the video detection host receives and processes the camera holder control command sent by the video detection client, and then controls the position movement of the video acquisition equipment camera.
In the step (1), the video acquisition equipment comprises a camera, a camera bracket and a camera cradle head;
the camera is used for collecting image information of the trackside signal equipment in real time after power is supplied, and then the collected information is transmitted to the video detection client in real time through the network interface;
the camera bracket is used for connecting the camera cradle head and the camera;
the camera holder is used for installing a fixed camera, a stepping motor is arranged in the camera holder, and after a camera holder control command sent by the video detection host is received, the position of the camera is controlled to move through forward rotation and reverse rotation of the stepping motor.
In step (2), as shown in fig. 3, the video detection client is provided with video detection client software, and the software comprises a parameter setting module, a video playing module, a camera pan-tilt control module, a video storage module and a video playback module;
the parameter setting module is used for respectively completing the setting of an interface IP address and a port number of a server of the signal dynamic detection system, a video acquisition equipment camera code stream address, a camera holder IP address and a port number;
the video playing module is used for playing image picture information of the video acquisition equipment when the system is started and displaying driving information at the same time; the driving data information comprises driving data such as train mileage, time, speed and the like; the client side driving information is sent to the local area network by an external signal dynamic detection system server in a broadcast UDP mode, and the video detection client side receives driving data information packets in real time, analyzes the driving data information packets and then obtains and stores the driving data information packets;
the camera holder control module is used for sending a camera holder control command and controlling different camera positions according to the sent camera holder control command;
the video storage module is used for respectively receiving and storing video information and driving information, storing the video information in M P format after receiving the video information, analyzing the driving information in the data packet after receiving the real-time driving information data packet, and synchronously storing the driving information after time calibration;
the video playback module is used for synchronously loading the video file and the corresponding synchronous driving data file at first when the video playback is carried out, then decoding the video file, and synchronously displaying the driving data while displaying the playback picture;
as shown in fig. 4, the camera pan-tilt control command is sent out by the video detection client, received and processed by the video detection host CPU module, and then sent to the corresponding video detection host video control module CCTV for receiving and processing, and then sent to the camera pan-tilt control module, and finally the camera pan-tilt control module controls the camera to move in position.
In the step (3), the video detection host comprises a power supply module, a CPU module, a video control module CCTV and a bottom plate bus; the power module, the CPU module and the video control module are connected through a bottom plate bus;
the power module converts an input AC220V power supply into DC5V, DC12V, DC V power supplies required by each module, then supplies power to each module of the video detection host through a bottom plate bus, and after the power supply is supplied, the power module indicates a lamp to supply power;
the CPU module is mainly used for receiving and processing camera cradle head commands and outputting the commands to the video control module CCTV; the CPU module is communicated, the communication is completed through the communication control level conversion circuit, the communication is normal or abnormal, and the CPU module indicator lamp is correspondingly displayed;
the video control module CCTV mainly completes control of a camera holder, module state prompt and power supply of video acquisition equipment; the camera holder control module is used for controlling the camera position to move by receiving the control instruction sent by the CPU module, processing the control instruction by the video control circuit and sending the control instruction to the camera holder control module; the video control module CCTV state indicates that when the video control module CCTV is inserted and works normally, the video control module CCTV indicator lights display correspondingly; the detection of the CCTV of the video control module is realized through an insertion detection circuit in the CPU module, and when the CCTV of the video control module is inserted into a video detection host, the CPU module indicator lights correspondingly display; the video control module can be configured into a plurality of video cameras according to the number of the camera holders;
the bottom plate bus is used for power supply connection and data transmission of the CPU module and the video control module; and the data transmission of the CPU module and the video control module adopts a standard RS232 bus for communication.
According to the technical scheme, the video acquisition equipment is arranged outside the train and used for acquiring video information in real time, the acquired information is transmitted to the video detection client inside the train through the local area network switch, the video detection client plays, stores and plays back video data in real time, and a camera holder control command can be sent to a camera holder to control the position of a camera.
The vehicle exterior equipment has the advantages that the camera is connected with the camera holder through the camera support, the structure is simple, the damage to the camera and other equipment during vehicle washing or other limited requirements is well prevented, and meanwhile, the equipment is convenient to detach and clean in an equipment installation mode.
The in-vehicle equipment provided by the invention has the advantages that only the video detection host and the video detection client are provided, the real-time display and control of the external video can be realized, the position of the external camera can be operated, and the operation and the construction are convenient.
The video detection host machine has the advantages that each module is provided with the working state and the communication state indicator lamp for displaying, so that equipment repair and maintenance are facilitated.
Claims (5)
1. The vehicle-mounted video detection method is characterized by comprising the following steps of:
step 1, video information of the trackside signal equipment is acquired in real time by video acquisition equipment and is sent to a video detection client through a network;
step 2, the video detection client processes the received video and driving data information, and then plays, stores and plays back the video in real time; meanwhile, the video detection client can send a camera cradle head control command to control the position movement of the camera; the method specifically comprises the following steps:
the video detection client is provided with video detection client software, and the software comprises a parameter setting module, a video playing module, a camera holder control module, a video storage module and a video playback module;
the parameter setting module is used for setting an interface IP address and a port number of a server of the signal dynamic detection system, a video acquisition equipment camera code stream address, a camera holder IP address and a port number;
the video playing module is used for playing image picture information of the video acquisition equipment when the system is started and displaying driving information at the same time; the driving data information comprises train mileage, time and speed driving data; the client side driving information is sent to the local area network by an external signal dynamic detection system server in a broadcast UDP mode, and the video detection client side receives driving data information packets in real time, analyzes the driving data information packets and then obtains and stores the driving data information packets;
the camera holder control module is used for sending a camera holder control command and controlling the movement of different camera positions;
the video storage module is used for respectively receiving and storing video information and driving information, storing the video information in an MP4 format after receiving the video information, analyzing the driving information in a data packet after receiving a real-time driving information data packet, and synchronously storing the driving information after time calibration;
the video playback module is used for synchronously loading the video file and the corresponding synchronous driving data file at first when the video playback is carried out, then decoding the video file, and synchronously displaying the driving data while displaying the playback picture;
the camera holder control command is sent out by the video detection client, received and processed by the video detection host CPU module, then sent to the corresponding video detection host video control module for receiving and processing, and sent to the camera holder control module after processing, and finally the camera holder control module is used for controlling the camera to move in position;
step 3, the video detection host receives and processes a camera cradle head control command sent by the video detection client, and then controls the position movement of a camera of the video acquisition equipment; the method specifically comprises the following steps:
the video detection host comprises a power supply module, a CPU module, a video control module and a bottom plate bus;
the power module converts an input AC220V power supply into DC5V, DC12V, DC V power supplies required by each module, then supplies power to each module of the video detection host through a bottom plate bus, and after the power supply is supplied, the power module indicates a lamp to supply power;
the CPU module is mainly used for receiving and processing camera cradle head commands and outputting the commands to the video control module; the CPU module is communicated, the communication is completed through the communication control level conversion circuit, the communication is normal or abnormal, and the CPU module indicator lamp is correspondingly displayed;
the video control module is used for mainly completing control of the camera holder, module state prompt and power supply of video acquisition equipment; the camera holder control module is used for controlling the camera position to move by receiving the control instruction sent by the CPU module, processing the control instruction by the video control circuit and sending the control instruction to the camera holder control module; the state of the video control module indicates that when the video control module is inserted and works normally, the video control module indicates the lamp to display correspondingly; the detection of the video control module is realized through an insertion detection circuit in the CPU module, and when the video control module is inserted into the video detection host, the CPU module indicator lamp displays correspondingly;
the bottom plate bus is used for power supply connection and data transmission of the CPU module and the video control module; and the data transmission of the CPU module and the video control module adopts a standard RS232 bus for communication.
2. The vehicle-mounted video detection method according to claim 1, wherein in step 1, the video acquisition device comprises a camera, a camera bracket and a camera pan-tilt;
the camera is used for acquiring image information of the trackside signal equipment in real time after power is supplied, and then the acquired information is transmitted to the video detection client in real time through the network interface;
the camera bracket is used for connecting the camera cradle head and the camera;
the camera holder is used for installing a fixed camera, a stepping motor is arranged in the camera holder, and after a camera holder control command sent by the video detection host is received, the camera is controlled to move in position through forward rotation and reverse rotation of the stepping motor.
3. The vehicle-mounted video detection system is characterized by comprising train external equipment and train internal equipment; the train external equipment comprises a camera, a camera bracket and a camera cradle head; the train internal equipment comprises a video detection host, a video detection client and a network switch; the network switch is respectively connected with the camera, the video detection host, the video detection client and the external signal dynamic detection system server; the camera, the video detection host and the video detection client communicate through a network switch;
the video detection host adopts a box assembly case structure and is arranged in the detection cabinet; the video detection host comprises a power supply module, a CPU module, a video control module and a bottom plate bus; the power module, the CPU module, the video control module and the bottom plate bus are arranged in the box assembly machine case;
the power supply module is used for supplying power to each module of the video detection host, and the indication lamp is used for indicating power supply after the power supply is supplied with power; the power module is inserted into a bottom plate bus in the box assembly chassis by adopting a plugboard structure, and is fixed on the box assembly chassis through panel screws;
the CPU module is used for receiving and processing camera holder command information and detection and communication of the video control module; the CPU module is in a plugboard structure and is spliced on a bottom plate bus in the box assembly chassis, and the power supply module is fixed on the box assembly chassis through panel screws;
the video control module is used for completing control of the camera holder, module insertion indication, signal communication and power supply of video acquisition equipment; the video control module adopts a plugboard structure, is spliced on a bottom plate bus in the box assembly machine case, and fixes the power supply module on the box assembly machine case through panel screws;
the bottom plate bus is used for power supply connection and communication connection of each module of the video detection host.
4. A vehicle-mounted video detection system according to claim 3, wherein the camera is a network high-speed camera for acquiring image information of the trackside equipment; the camera is arranged on the camera holder through a camera bracket; the camera bracket is used for connecting a camera and a metal structural component of a camera holder;
the camera holder is used for installing and fixing a camera bracket and a camera and adjusting the movement of the position of the camera; the camera holder is arranged at the top of the head and the tail of the electric test vehicle.
5. A vehicle-mounted video detection system according to claim 3, wherein the video detection client uses an industrial computer or an embedded computer, communicates with the video detection host CPU module through a network interface, and receives video information transmitted by a camera through the network interface.
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