Automatic photographing recording device for traffic accident

Abstract

The utility model discloses a traffic accident automatic shooting recording device in the technical field of traffic accident record, include: accident detection module is used through gathering sound data and pressure data detection traffic accident's occurrence, main control and analysis module are with accident detection module telecommunication connection, are used for receiving and analyzing sound data and pressure data, confirm the data after accident and save to support responsibility determination The accident detection module includes: sound collection module adopts the capacitive sound sensor, is installed in the road both sides lamp pole, traffic sign pole, intersection corner or bridge tunnel mouth, height is 2 3 meters, is used for gathering vehicle collision or abnormal sound signal, and this kind of traffic accident automatic shooting recording device judges whether the traffic accident occurs through the sound and pressure collection, can monitor the occurrence of traffic accident comprehensively, and provides more abundant data support for the accident responsibility determination.

Description

Technical Field

[0001] This utility model relates to the field of traffic accident recording technology, specifically to an automatic traffic accident shooting and recording device. Background Technology

[0002] Recording traffic accidents and determining liability are core aspects of traffic management. Traditional technologies primarily rely on onboard recording devices or roadside monitoring systems to collect accident information and provide a basis for liability determination.

[0003] Existing technologies mainly rely on vehicle-mounted sensors (such as accelerometers and cameras) to detect collision signals and trigger recording, as well as road surveillance cameras to record traffic parameters. Vehicle-mounted sensors can only record image data from a single direction of the vehicle (such as the front), making it difficult to fully reconstruct the accident scene. Road surveillance camera data is complex and difficult to query quickly. Therefore, how to record traffic accidents quickly and effectively to provide data support for subsequent accident determination is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic traffic accident recording device to solve the problems mentioned in the background art, which mainly rely on vehicle-mounted sensors (such as accelerometers and cameras) to detect collision signals and trigger recording, and road monitoring cameras to record traffic parameters. Vehicle-mounted sensors can only record image data in a single direction of the vehicle (such as in front), making it difficult to fully restore the accident scene. Road monitoring camera data is also complex and difficult to query quickly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic traffic accident recording device, comprising: an accident detection module, used to detect the occurrence of a traffic accident by collecting sound data and pressure data; and a main control and analysis module, electrically connected to the accident detection module, used to receive and analyze the sound data and pressure data, and save the data after confirming the accident to support liability determination.

[0006] Preferably, the accident detection module includes:

[0007] The sound acquisition module uses a capacitive sound sensor and is installed on lampposts, traffic signposts, corners of intersections, or bridge and tunnel entrances on both sides of the road at a height of 2-3 meters. It is used to collect vehicle collision or abnormal sound signals.

[0008] The pressure acquisition module uses strain gauge or piezoelectric pressure sensors, which are installed at lane dividers, parking lines, under tunnel pavements, or traffic flow monitoring points at intervals of 10-20 meters to detect changes in collision pressure.

[0009] Preferably, the main control and analysis module includes:

[0010] The main control unit is used to comprehensively analyze sound and pressure signals to confirm whether an accident has occurred.

[0011] The data storage module connects to the main control unit via SATA, PCIe, USB, or network interfaces to store raw data and analysis results.

[0012] Preferably, the sound acquisition module is connected to the main control unit via an I²C interface to convert the sound signal into a digital signal for transmission.

[0013] Preferably, the pressure acquisition module is connected to the main control unit via an SPI interface, and transmits the pressure signal after conditioning and analog-to-digital conversion.

[0014] Preferably, it also includes a data acquisition and retrieval module, which includes:

[0015] An image acquisition module, which is connected to the main control unit via a PCIe interface, is activated after the accident is confirmed to acquire images of the accident scene.

[0016] The traffic light data retrieval module is connected to the main control unit via an Ethernet interface to retrieve traffic light status data 5-10 seconds before the accident.

[0017] The speed measurement data retrieval module is connected to the main control unit via an Ethernet interface to retrieve vehicle speed data prior to the accident.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] (1) By collecting sound and pressure data to determine whether a traffic accident has occurred, it is possible to comprehensively monitor the occurrence of traffic accidents and provide richer data support for determining liability for accidents;

[0020] (2) By collecting and saving image data, traffic light data and speed measurement data, the data can be retrieved after a traffic accident to provide data support for subsequent accident analysis and liability determination.

[0021] (3) By combining various data (such as images, traffic lights, speed measurement, etc.), the cause of the accident can be determined more accurately. By analyzing the accident data and reporting it in a timely manner, the traffic management department can discover potential safety hazards in advance, provide data support for the traffic management department, help it optimize road planning and signal settings, and reduce the occurrence of traffic accidents. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic block diagram of the accident detection module of this utility model;

[0024] Figure 3 This is a schematic block diagram of the main control and analysis module structure of this utility model;

[0025] Figure 4 This is a schematic block diagram of the data acquisition and retrieval module of this utility model;

[0026] Figure 5 This is a system block diagram of the present invention.

[0027] The diagram shows: 100 Accident Detection Module, 110 Sound Acquisition Module, 120 Pressure Acquisition Module, 200 Main Control and Analysis Module, 210 Main Control Unit, 220 Data Storage Unit, 300 Data Acquisition and Retrieval Module, 310 Image Acquisition Module, 320 Traffic Light Data Retrieval Module, and 330 Speed ​​Measurement Data Retrieval Module. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides an automatic traffic accident recording device that uses sound and pressure data to determine whether a traffic accident has occurred. It can comprehensively monitor traffic accidents and provide richer data support for determining accident liability. Please refer to [link / reference]. Figure 1 It includes an accident detection module 100, a main control and analysis module 200, and a data acquisition and retrieval module 300; Example

[0030] Please see Figure 1 The accident detection module 100 detects traffic accidents by collecting sound and pressure data.

[0031] The main control and analysis module 200 is telecommunication-connected to the accident detection module 100 and is used to receive data transmitted by the accident detection module 100. The main control and analysis module 200 analyzes and saves the collected data for subsequent accident liability determination. It uses sound and pressure data to determine whether a traffic accident has occurred, which can comprehensively monitor the occurrence of traffic accidents and provide richer data support for accident liability determination. Example

[0032] Please see Figure 1-3 and Figure 5The accident detection module 100 includes a sound acquisition module 110 and a pressure acquisition module 120;

[0033] The sound acquisition module 110 is a capacitive sound sensor used to acquire vehicle collision or abnormal sound signals;

[0034] The sound acquisition module 110 is installed on lampposts or traffic signposts on both sides of the road, at a height of about 2-3 meters, high enough from the ground to avoid interference from ground noise, or installed at the four corners of an intersection to cover the entire intersection area and ensure that collision sounds from all directions can be captured, or installed at the entrance or exit of bridges and tunnels, or other locations where traffic accidents are likely to occur, to collect sound data.

[0035] The pressure acquisition module 120 is a strain gauge pressure sensor or a piezoelectric pressure sensor, used to detect pressure changes during a vehicle collision.

[0036] The pressure acquisition module 120 is installed in specific areas on the road surface, such as near lane dividers, stop lines, or stop lines at intersections, or under the road surface inside bridges and tunnels, or near traffic flow monitoring points in areas with a high incidence of traffic accidents.

[0037] The installation spacing of the sound acquisition module 110 and the pressure acquisition module 120 is optimized according to the road width and traffic flow. Generally speaking, the spacing of the sound acquisition module 110 can be larger (e.g., 50-100 meters), while the spacing of the pressure acquisition module 120 should be smaller (e.g., 10-20 meters) to ensure that collision signals can be accurately captured.

[0038] The main control and analysis module 200 includes a main control unit 210 and a data storage module 220;

[0039] The sound acquisition module 110 is electrically connected to the main control unit 210 via an I2C interface. After processing the acquired sound signals, the sound acquisition module 110 transmits them to the main control unit 210. The sound acquisition module 110 is responsible for acquiring vehicle collision or abnormal sound signals, converting them into digital signals, and transmitting them to the main control unit 210. After receiving the sound signals, the main control unit 210 analyzes them to determine whether there is a possibility of a traffic accident.

[0040] The pressure acquisition module 120 is electrically connected to the main control unit 210 via an SPI interface. The pressure acquisition module 120 transmits the acquired pressure signal to the main control unit 210 after conditioning and analog-to-digital conversion. The pressure acquisition module 120 is responsible for detecting pressure changes during a vehicle collision and converting them into digital signals before transmitting them to the main control unit 210. After receiving the pressure signal, the main control unit 210 combines it with the sound signal to make a comprehensive judgment and further confirm whether a traffic accident has occurred.

[0041] The data storage module 220 is connected to the main control unit 210 via interfaces such as SATA, PCIe, or USB, or via a network interface for remote service. The main control unit 210 sends write commands to the data storage module 220 to store the collected sound and pressure data. It can also read data from the data storage module 220 for subsequent analysis and processing. By collecting sound and pressure data, it can determine whether a traffic accident has occurred, comprehensively monitor the occurrence of traffic accidents, and provide richer data support for determining accident liability. Example

[0042] Please see Figure 1 and Figure 3-5 It also includes a data acquisition and retrieval module 300, which is telecom connected to the main control and analysis module 200. The data acquisition and retrieval module 300 includes an image acquisition module 310, a traffic light data retrieval module 320, and a speed measurement data retrieval module 330.

[0043] The image acquisition module 310 is electrically connected to the main control unit 210 via a PCIe interface;

[0044] The image acquisition module 310 is started under the control of the main control unit 210 to acquire images of the accident scene and transmit the image data to the main control unit 210.

[0045] The image acquisition module 310 is triggered after the main control unit 210 determines that a traffic accident has occurred. It is used to acquire images of the accident scene. After receiving the image data, the main control unit 210 stores it in the data storage module 220 for subsequent accident analysis and liability determination.

[0046] The traffic light data retrieval module 320 is connected to the main control unit 210 via an Ethernet interface;

[0047] The main control unit 210 sends a data retrieval request to the traffic light data retrieval module 320, and the traffic light data retrieval module 320 transmits the retrieved traffic light status data back to the main control unit 210.

[0048] After confirming a traffic accident, the main control unit 210 obtains the traffic light status data 5-10 seconds before the accident through the traffic light data retrieval module 320. The traffic light data retrieval module 320 obtains the data from the traffic light control system and transmits it back to the main control unit 210 to determine whether the vehicle has run a red light.

[0049] The speed measurement data retrieval module 330 is connected to the main control unit 210 via an Ethernet interface;

[0050] The main control unit 210 sends a data retrieval request to the speed data retrieval module 330, and the speed data retrieval module 330 transmits the retrieved traffic light status data back to the main control unit 210.

[0051] After confirming a traffic accident, the main control unit 210 obtains the vehicle speed data before the accident through the speed data retrieval module 330. The speed data retrieval module 330 obtains the data from the speed measuring device and transmits it back to the main control unit 210 to determine whether the vehicle is speeding.

[0052] By collecting and storing image data, traffic light data, and speed measurement data, the data can be retrieved after a traffic accident to provide data support for subsequent accident analysis and liability determination.

[0053] The data storage module not only stores data, but can also work in conjunction with the main control unit. The main control unit reads data from the data storage module and classifies it according to accident type (such as speeding, running red lights, collisions, etc.), counts the frequency of each accident type, identifies frequently occurring accident types, and analyzes whether there are high accident occurrences in specific areas or time periods by combining the time and location of the accidents.

[0054] By using road images captured by the image acquisition module, we can analyze whether the road markings are clear and whether the lane divisions are reasonable, and we can also count the locations of accidents to determine whether there are certain road sections where accidents occur frequently due to design flaws.

[0055] Analyze traffic light data to determine if there are any unreasonable signal settings, such as green light time being too short or red light time being too long. Combine speed measurement data and traffic flow data to analyze whether the signal release matches the actual traffic demand.

[0056] The main control unit sets alarm thresholds based on the frequency of accidents. For example, when a certain type of accident occurs more than 10 times in a month, an alarm is triggered. The main control unit sends an alarm signal through a network interface or local alarm device (such as a buzzer or display screen) and provides an accident analysis report.

[0057] By combining various data sources (such as images, traffic lights, and speed cameras), the causes of accidents can be determined more accurately. By analyzing accident data and issuing timely alerts, traffic management departments can identify potential safety hazards in advance, providing data support to help them optimize road planning and signal settings, and reduce the occurrence of traffic accidents.

[0058] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An automatic traffic accident recording device, characterized in that: include: An accident detection module (100) is used to detect the occurrence of traffic accidents by collecting sound data and pressure data; The main control and analysis module (200) is telecommunication connected to the accident detection module and is used to receive and analyze sound data and pressure data, and save the data after confirming the accident to support the determination of responsibility.

2. The automatic traffic accident recording device according to claim 1, characterized in that: The accident detection module (100) includes: The sound acquisition module (110) uses a capacitive sound sensor and is installed on lampposts, traffic signposts, corners of intersections or bridge and tunnel entrances on both sides of the road at a height of 2-3 meters. It is used to collect vehicle collision or abnormal sound signals. The pressure acquisition module (120) uses strain gauge or piezoelectric pressure sensors and is installed at lane dividers, parking lines, tunnel pavement, or traffic flow monitoring points at intervals of 10-20 meters to detect changes in collision pressure.

3. The automatic traffic accident recording device according to claim 2, characterized in that: The main control and analysis module (200) includes: The main control unit (210) is used to comprehensively analyze sound and pressure signals to confirm whether an accident has occurred; The data storage module (220) is connected to the main control unit via SATA, PCIe, USB or network interface to store raw data and analysis results.

4. The automatic traffic accident recording device according to claim 3, characterized in that: The sound acquisition module (110) is connected to the main control unit (210) via the I²C interface to convert the sound signal into a digital signal for transmission.

5. The automatic traffic accident recording device according to claim 3, characterized in that: The pressure acquisition module (120) is connected to the main control unit (210) via the SPI interface, and transmits the pressure signal after conditioning and analog-to-digital conversion.

6. The automatic traffic accident recording device according to claim 3, characterized in that: It also includes a data acquisition and retrieval module (300), which includes: Image acquisition module (310), which is connected to the main control unit (210) through PCIe interface, is started after the accident is confirmed and acquires images of the accident scene; Traffic light data retrieval module (320), the traffic light data retrieval module (320) is connected to the main control unit (210) through an Ethernet interface, and retrieves traffic light status data 5-10 seconds before the accident; The speed data retrieval module (330) is connected to the main control unit (210) via an Ethernet interface to retrieve vehicle speed data before the accident.

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