CN213070114U

CN213070114U - PDA terminal for monitoring automobile test

Info

Publication number: CN213070114U
Application number: CN202021337787.8U
Authority: CN
Inventors: 周炜; 黎浩; 晋杰; 贾红; 梁晨
Original assignee: Research Institute of Highway Ministry of Transport
Current assignee: Research Institute of Highway Ministry of Transport
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-04-27
Anticipated expiration: 2030-07-09

Abstract

The utility model discloses a PDA terminal is used in automobile test monitoring. The PDA terminal is integrated with a camera, a memory card, a wireless communication module, a nine-axis attitude sensor and a GPS receiving all-in-one machine, can acquire parameters such as video images of a test site, vehicle attitude, geographic position, speed, time and the like, is used for automobile tests, and meanwhile prevents test counterfeiting by video acquisition and vehicle VIN code loading. The utility model discloses can truly restore vehicle test process, ensure authenticity, reliability, the standardization that experimental detection detected.

Description

PDA terminal for monitoring automobile test

Technical Field

The utility model relates to a video monitoring and experimental data acquisition technical field among the automobile test process, concretely relates to PDA terminal is used in experimental monitoring of road transport vehicle.

Background

In recent years, with the rapid increase of the quantity of road transport vehicles in China, commercial vehicles become the main force of road transport due to the advantages of convenience, rapidness and the like of the commercial vehicles. While the road transportation is rapidly developed, the road transportation safety condition of China is not optimistic. According to the statistical data of traffic accidents of the public security department, road traffic accidents and death people in China are in the forefront of the world, and serious malignant traffic accidents of crowd death group injuries occur occasionally, so that huge losses are caused to national economy and lives and properties of people. China is a typical country mainly based on hybrid traffic in the world, because of large vehicle holding amount and high utilization rate, front or rear-end collision accidents occur between a passenger car and a truck or between the passenger car and the truck, and the volume and the mass of large and medium-sized passenger cars and trucks are equivalent, and the consequences are very serious if collision occurs. The traffic accident case shows that in various accidents, the commercial vehicle is the main cause of the traffic accident on the very big road, and besides factors such as drivers, roads and climate conditions, the technical performance of the commercial vehicle and mechanical faults in the use process are also causes of the traffic accident on the very big road.

At present, China develops a large amount of concrete technical service work around the technical management of road transport vehicles, optimizes the technical management supervision measures of operation vehicles, puts forward the most basic safety technical requirements on the safety performance and the structural configuration of the road transport vehicles, and establishes a related system for inspection and detection of the road transport vehicles, so that a management platform for detecting information of the road transport vehicles is established, and the work of strengthening the technical admission and detection supervision of the road transport vehicles is necessary.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a PDA terminal is used in automobile test monitoring, car inspection personnel hand-carry PDA, carry out the video recording to vehicle test process according to experimental standard based on PDA, gather gesture parameters such as angular velocity, acceleration of vehicle X axle, Y axle, Z axle in vehicle dynamic test process to combine vehicle geographical position information to send for backend server, the real vehicle test process that restores of data. And vehicle VIN codes are superposed in all video recordings, so that the reality, reliability and specification of test detection are ensured.

The utility model provides a PDA terminal for automobile test monitoring, including PDA organism, mainboard, central processing unit, RAM, camera, TFT storage card, wireless communication module, lithium cell, touch-sensitive screen, power source, data interface, function button, still receive all-in-one including nine attitude sensor and GPS, wherein:

the camera collects video images of a test site, stores the video images in the TFT storage card and displays the video images through the touch screen;

the nine-axis attitude sensor collects angular velocity and acceleration attitude parameters of an X axis, a Y axis and a Z axis of the vehicle, stores the parameters in the TFT storage card and displays the parameters through the touch screen;

the GPS receiving all-in-one machine acquires the geographic position, the speed and the time parameters of the vehicle, stores the parameters in the TFT storage card and displays the parameters through the touch screen;

the wireless communication module integrates 4G/5G full-network communication, WiFi and Bluetooth communication modes, and conducts outward transmission on video images collected by the camera, data collected by the nine-axis attitude sensor and data collected by the GPS receiving all-in-one machine.

Further:

the central processing unit adopts a four-core 64-bit Coretex-A53 processor.

And the video image is loaded with the vehicle VIN code.

The nine-axis attitude sensor and the GPS receiving all-in-one machine are connected with the central processing unit through data interfaces.

The GPS receiving integrated machine is arranged on the top of the vehicle in the dynamic test.

The nine-axis attitude sensor adopts 100Hz frequency sampling.

The utility model adopts the above technical scheme, following beneficial effect has: 1. the PDA terminal records and takes pictures in appointed steps in the test process through a built-in camera of the device, unique information of the vehicle VIN code is added into the video and the image, and the video and the image can be tamper-proof and uploaded to a central server in real time; 2. a nine-axis 100Hz sampling attitude sensor is embedded in the terminal and is matched with a GPS receiving all-in-one machine, so that the running track and vehicle attitude change data of a test vehicle in a dynamic test are collected, and the authenticity and uniqueness of the test process are ensured; 3. the PDA terminal is provided with a wireless communication module, supports multiple wireless transmission modes and establishes contact with the background; 4. the PDA terminal has high integration degree, is light and portable and is suitable for operation in a mobile environment; 5. the PDA terminal is provided with a TFT memory card, so that the storage capacity is large, the running speed is high, and the performance is stable; 6. the PDA terminal is provided with the touch screen, operation is visual and simple through the touch screen, training cost and test time are greatly reduced, test quality is ensured, a large amount of manpower and communication cost are saved, and working efficiency is greatly improved.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention.

FIG. 1 is an external view of a PDA terminal for testing and inspecting automobiles;

FIG. 2 is a structural frame diagram of a PDA terminal used for testing and inspecting automobiles;

fig. 3 is a schematic structural diagram of the PDA terminal and the test data analyzing and collecting system for testing and inspecting the automobile.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following description of the present invention will clearly illustrate the technical solutions of the present invention in combination with the embodiments and the accompanying drawings. However, it should be understood by those skilled in the art that the following examples are not intended to limit the technical solutions of the present invention, and all equivalent changes or modifications made in the spirit of the technical solutions of the present invention should be considered as falling within the protection scope of the present invention.

As shown in fig. 1 and 2, the present invention provides a PDA terminal for monitoring vehicle tests, which is improved on the basis of the basic configuration of the conventional PDA, and is added with some auxiliary configurations specially applied to vehicle test monitoring and remote transmission. The basic configuration of the PDA terminal includes: the PDA comprises a PDA body 1, a mainboard 2, a central processing unit 3, an RAM 4, a camera 5, a TFT memory card 6, a wireless communication module 7, a touch screen 8, a lithium battery 9, a power interface 10, a data interface 11, a function key 12 and the like; the added configuration comprises the following steps: a nine-axis attitude sensor 13 and a GPS receiving all-in-one machine 14.

The main board 2, the central processing unit 3, the RAM 4, the camera 5, the TFT memory card 6, the wireless communication module 7, the touch screen 8, the lithium battery 9, the power interface 10, the data interface 11, the function keys 12 and the like are all arranged based on the PDA body 1, and the nine-axis attitude sensor 13 and the GPS receiving all-in-one machine 14 are connected with the central processing unit 3 through the data interface.

The central processing unit 3 is used as a core of control processing, adopts a four-core 64-bit Coretex-A53 central processing unit with a dominant frequency of 1.3GHz, has the advantages of high running speed, stable performance and capability of supporting parallel processing of multiple tasks, and drives a test program loaded on a mainboard to run; the high-frequency serial port data acquisition device is selected as a processor for acquiring a plurality of high-frequency serial port data and is coded by the processor, and can support the coding compression of H.264 and MPEG video images through strong computing capability to implement network external transmission; meanwhile, the quad-core 64-bit corex-A53 is embedded into an android7.0 operating system by adopting an ARM architecture, has the characteristics of high performance and low power consumption, supports virtualization, supports 256TB storage, supports the L1 and L2 caches of ECC, and is convenient for development and upgrade of programs.

And the RAM 4 adopts 2G capacity, compresses the test video and data and restores and displays the test video and data.

The camera 5 adopts 200 ten thousand pixels at the front and 800 ten thousand pixels at the back, and has the functions of flash and automatic focusing. The camera 5 is used for collecting video images of vehicles, personnel, scenes and the like of a working site during a test so as to prove the authenticity of the test, and the video images can be stored, displayed through a touch screen and transmitted out through a wireless communication module. The central processing unit 3 has an image processing function, after the PDA terminal obtains VIN code information of the test vehicle, the VIN code is overlaid to an original picture in a picture form in the process of compressing and encoding the video by the central processing unit 2, and the unique association between the video and the test vehicle is ensured.

The wireless communication module 7 integrates various wireless communication modes such as 4G or 5G full-network communication, WiFi, Bluetooth and the like, can select WiFi in 2.4Ghz or 5Ghz frequency band and four channels of IEEE802.11a/b/G/n, and has better WiFi effect; bluetooth 4.0 is supported, and the wireless connection device is better in performance. The wireless communication module 7 is used for uploading various data collected by the PDA terminal to the background server, including shot images, test data, vehicle attitude data, position data and the like.

And the nine-axis attitude sensor 13 adopts a 100Hz sampling attitude sensor. The nine-axis attitude sensor 13 collects attitude parameters such as angular velocities and accelerations of the X axis, the Y axis and the Z axis of the vehicle, and transmits the attitude parameters to the central processing unit 3 through a data line.

The GPS receiver all-in-one machine 14 is generally arranged on the vehicle roof in the dynamic test and is connected to the PDA data interface through a data line. The central processing unit receives the data and stores the data in the memory card, and the data is transmitted out through the network. The data collected by the GPS includes vehicle geographic location, speed, time. When the GPS signal is normal, the integrated machine flashes the lamp signal at one second intervals.

Various function menu operations are possible on the touch screen 8 and used to display video recordings.

The function keys 12 include a start/stop key, a volume key, a decode key, and the like.

The PDA terminal can realize the storage and display of data in the dynamic test process of the automobile and can realize the monitoring of the test. One specific example operation is described below:

1) and starting up, and displaying an application program on the touch screen to indicate that the terminal is ready.

2) And (3) logging in by a user, inputting a vehicle VIN code, entering a selected test program interface, wherein the interface has a step name corresponding to a test, pressing a system program 'start' key after the selected step, carrying out the test, recording test data in a terminal in real time, and transmitting the test data out through a network.

3) In the test process, the appointed steps in the test process can be recorded and photographed through the camera, and the central processing unit automatically loads the VIN code information of the vehicle in the video and the photo, so that the anti-counterfeiting effect is realized.

4) If the test is a dynamic test, vehicle attitude data and GPS data can be recorded in the test data at the same time. The method comprises the following steps that part of designated items need to acquire vehicle attitude data and position data so as to verify the authenticity of a test, a nine-axis attitude sensor samples attitude parameters such as angular speeds and accelerations of an X axis, a Y axis and a Z axis of a vehicle at the frequency of 100Hz per second, and a central processing unit receives data through a data interface, stores the data and transmits the data outside through a network; similarly, the GPS receiving all-in-one machine also transmits the position information to the central processing unit in real time.

5) The test data and the image are stored in the terminal in real time, can be displayed on the touch screen in real time and can be transmitted outside through a network; moreover, images and data related to all tests can be submitted on line through a 'supplementary transmission' function.

The utility model also provides an automobile test data acquisition analysis remote monitering system, refer to fig. 3, server 200 and customer end 300 including above-mentioned PDA terminal 100 and backstage surveillance center. The PDA terminal 100 uploads various collected test videos and dynamic test data to the server 200 through the network in addition to storing them, and the client 300 calls the data through the server 200 to analyze the data. The client 300 also downloads test information, vehicle code, client profile and other information to the PDA terminal through the server 200 for the test. The PDA terminal 100, the server 200, and the client 300 constitute a remote monitoring system for collecting and analyzing the automobile test data.

The tester can complete the test after confirming the video quality and the dynamic statistical result of each step through the system. The test data acquisition and analysis system adopts a video and data multiple combination mode to enhance the standardization and the authenticity in the automobile test inspection and detection process.

Claims

1. The utility model provides a PDA terminal is used in experimental monitoring of car, including PDA organism, mainboard, central processing unit, RAM, camera, TFT storage card, wireless communication module, lithium cell, touch-sensitive screen, power source, data interface, function button, its characterized in that: also comprises a nine-axis attitude sensor and a GPS receiving all-in-one machine, wherein,

the GPS receiving all-in-one machine acquires the geographic position, the speed and the time parameters of the vehicle, stores the parameters in the TF memory card and displays the parameters through the touch screen;

2. The PDA terminal for vehicle test monitoring as claimed in claim 1, wherein: the central processing unit adopts a four-core 64-bit Coretex-A53 processor.

3. The PDA terminal for vehicle test monitoring as claimed in claim 1, wherein: the nine-axis attitude sensor and the GPS receiving all-in-one machine are connected with the central processing unit through data interfaces.

4. The PDA terminal for vehicle test monitoring as claimed in claim 1, wherein: the GPS receiving integrated machine is arranged on the top of the vehicle in the dynamic test.

5. The PDA terminal for vehicle test monitoring as claimed in claim 1, wherein: the nine-axis attitude sensor adopts 100Hz frequency sampling.