Method for testing traffic flow information acquisition capability of roadside equipment of intelligent vehicle-road system

A technology of information collection and testing methods, applied in software testing/debugging, error detection/correction, instruments, etc., can solve the problems that the traffic flow information collection ability cannot realize system-level testing, etc., and achieve the effect of promoting development and improving performance

Pending Publication Date: 2022-03-18
TRAFFIC MANAGEMENT RES INST OF THE MIN OF PUBLIC SECURITY
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AI-Extracted Technical Summary

Problems solved by technology

[0004] The invention provides a method for testing the traffic flow information collection capability of roadside equipment in an intelligent vehicle road system, which solves the...
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Method used

D. in the step c testing process, environmental testing auxiliary equipment 2032 transmits environmental measurement indicators such as temperature, humidity, visibility, wind speed, rainfall, illuminance to evaluation platform 202 according to specific transmission protocols, and monitors and protects auxiliary equipment 2033 Protective facilities such as cone barrels, guardrails, anti-collision barrels and other facilities can be arranged on the test lane, guidance signs can be arranged at the far end of the test site for traffic guidance, and anti-intrusion equipment, warning lights, and warning tapes can be arranged in the testing work area of ​​testers. To improve the safety of operators in the test area, the monitoring equipment in the monitoring and protection auxiliary equipment 2033 is installed on the test bar together with the environmental testing auxiliary equipment 2032 and the single function testing equipment 2031, and the pictures and videos in the testing process are in accordance with specific protocols (such as GB/T28181-2011 "Technical Requirements for Information Transmission, Exchange, and Control of Networked Security Video Surveillance System") are transmitted to the evaluation platform 202.
[0057] Environmental testing auxiliary equipment 2032 is used to test environmental parameters, including temperature and humidity meters, visibility measuring instruments, illuminance measuring instruments, meteorological measuring equipment and other environmental parameter measuring equipment. Monitoring and protection auxiliary equipment 2033 is used to provide safety protection for the test site during the test, including cone barrels, guardrails, anti-collision barrels, anti-intrusion equipment, induction signs, warning lights, warning belts and other protective facilities and monitoring equipment. The installation of test equipment includes the in...
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Abstract

The invention relates to the technical field of intelligent vehicle-road systems, and particularly discloses a method for testing the traffic flow information acquisition capability of roadside equipment of an intelligent vehicle-road system. Comprising the following steps: obtaining a single function test result of a tested device according to a first traffic flow information acquisition result of the tested device in different test scenes and a second traffic flow information acquisition result of a test device in different test scenes; obtaining a system function test result of the tested equipment according to feedback results of the tested equipment on the multiple test instructions; if the single function test result of the tested equipment and the system function test result of the tested equipment reach the standard, judging that the traffic flow information acquisition capability of the tested equipment meets the requirement; wherein the test scene comprises a road, light and weather. The method for testing the traffic flow information acquisition capability of the roadside equipment of the intelligent vehicle-road system provided by the invention can effectively solve the problem of lack of system-level testing of the traffic flow information acquisition capability of the roadside equipment in the prior art.

Application Domain

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  • Method for testing traffic flow information acquisition capability of roadside equipment of intelligent vehicle-road system
  • Method for testing traffic flow information acquisition capability of roadside equipment of intelligent vehicle-road system
  • Method for testing traffic flow information acquisition capability of roadside equipment of intelligent vehicle-road system

Examples

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Example Embodiment

[0034] It should be noted that the features and embodiments in the present invention can be bonded to each other in the case of an unable conflict. The present invention will be described in detail below with reference to the accompanying drawings.
[0035] In order to better understand the present invention, the technical solutions in the embodiments of the present invention will become apparent to those skilled in the Embodiments of the invention, not all of the embodiments. Based on the embodiments in the present invention, those of ordinary skill in the art may belong to the scope of the present invention in the range of the present invention without all other embodiments obtained without making creative labor.
[0036] It should be noted that the specification and claims of the present invention and the terms "first", "second", "second", or the like are used to distinguish a similar object without having to describe a particular order or award order. It should be understood that the data such as use can be interchanged in appropriate, so that embodiments of the invention described herein are described. Moreover, the terms "including" and "having" and any variations are intended to cover the inclusion of his inclusion, for example, a series of steps or units of the process, methods, systems, products, or devices do not have to be clearly listed. These steps or units may include other steps or units that are not clearly listed or for these processes, methods, products, or equipment.
[0037] In this embodiment, a test method of intelligent car road system road side equipment traffic flow information acquisition capability is provided, and the testing platform is applied, and the test equipment, test equipment and auxiliary devices are connected to the evaluation platform. The test equipment, test equipment and auxiliary equipment are installed on the test road, figure 1 It is a flow chart of test methods for the intelligent lane system road side equipment traffic information collection capability according to embodiments of the present invention, such as figure 1 As shown, the test method includes:
[0038] S100, according to the first traffic flow information acquisition result of the test device at different test scenarios, and the second traffic flow information acquisition result of the test equipment at different test scenarios, obtain the monomer of the test equipment. Function test results;
[0039] It should be understood that before testing the test equipment, the test body proposes a test application to the relevant management department or third party agency. After the audit is passed, the test subject cooperates with the test institution to complete the test application for the test application for the test application. There is a changeable cancellation, and the evaluation platform assigns the test task to the tester, complete the test task registration assignment, has changeable cancellation, and tells the test application for the application of the agency process, equipment installation, safety precautions.
[0040] Before the test, the equipment, test equipment, and auxiliary equipment such as the test equipment, the equipment and equipment are installed on the test road and the debugging of the evaluation platform chain is successful and normal.
[0041] In the embodiment of the present invention, the test equipment and the traffic information monitoring point of the test equipment are coincident. Specifically, the traffic information collection point of the test equipment and test equipment should be tested in the same transportation cross section to realize the passway and the directional test.
[0042] Specifically, the first traffic flow information acquisition result of the test equipment in different test scenarios and the second traffic flow information acquisition result of the test equipment at different test scenarios, obtains the test equipment. Monomer function test results, including:
[0043] Gets the first traffic flow information collection result of the test equipment in different test scenarios;
[0044] Gets the second traffic stream information collection result of the test equipment in different test scenarios;
[0045] Comparing the first traffic stream information acquisition result and the second traffic flow information acquisition result to obtain the standard of the test device;
[0046]If the compliance of the equipment under test is greater than or equal to a preset threshold value, it is determined that the test result of the functional monomer in the standard test apparatus.
[0047] In an embodiment of the present invention, the predetermined threshold may be set as needed, e.g., when the test apparatus is a traffic flow of the microwave detector, the preset threshold may be set to 95%, i.e., if the traffic flow, the test results of the average vehicle speed compliance rate greater than or equal to 95%, it is determined that the microwave detector includes a traffic flow and a traffic responsive average vehicle speed.
[0048] In an embodiment of the present invention, the first traffic flow information acquisition result and the second traffic flow information acquisition result includes traffic, queue length and average speed.
[0049] It will be appreciated that the functional monomer is understood to specifically test points and lane-direction test capacity of traffic flow parameters acquired traffic, the queue length and average speed.
[0050] In an embodiment of the present invention, the test scenarios comprising: roads, light and weather. Specifically, the road include: Roads, highways, expressways and roads, including the light: daylight, glare, backlit, flashes and night, the weather include: General, rain, fog, snow wind days.
[0051] More specifically, the trunk roads and urban roads, including secondary trunk, the ordinary roads and highways comprises a secondary road.
[0052] Preferably, it includes the conventional sunny weather, cloudy cloudy, rainy weather including the rain, rain, rain and heavy rain, fog, the mist including weather, fog and mist, the snow including weather day snow, snow, snow and snow, the weather including wind days breeze, breeze, strong winds and high winds.
[0053] In an embodiment of the present invention, the test apparatus comprising: any one or more microwave traffic flow detector, a video detector, and a vehicle detector geomagnetism vehicle, the test apparatus comprises a traffic test equipment, the test speed the length of the apparatus and test equipment.
[0054] Specifically, such as figure 2 , The test equipment are in line with the "traffic information collection microwave traffic flow detector" (GB / T 20609) Microwave traffic flow detector, or in compliance with "video traffic information collection vehicle detector" (GB / T24726) video vehicle detector, or in compliance with "geomagnetic vehicle detector" (GB / T 35548) geomagnetic vehicle detector. Test equipment installed on the test roads 1021, 1022 may include specific monitoring direction crossing (import and export) and sections (in the same direction, facing), etc., test lane 1023 may specifically include the straight lane, left lane, right turn lane, tidal lanes and bus lanes and other lanes.
[0055] Microwave traffic flow detector has a positive, laterally in two ways, the main video is a forward vehicle detector installed, a geomagnetic detector main vehicle was buried, which is mounted or side-mounted lever forward mainly gantry, T- rod, L lever or the like, mounting height does not exceed 6 meters, the geomagnetic buried in the same lane, and the longitudinal spacing of not more than 5 m, the number of not less than 2 is mounted. In the present invention, real-time, the data acquisition means EUT traffic lane-dividing points collected direction, average speed, traffic flow queue length information, recorded in a single lane of traffic flow information, acquisition time division direction of the recording in one direction when the lane-dividing acquisition traffic flow information. Data transmission refers to transmission of data traffic between the EUT 202 and evaluation platform 2011, a control command, device parameters, test image / video data.
[0056] In an embodiment of the present invention, the monomer functional test apparatus 2031 for testing the accuracy of the traffic parameters 2011 test equipment, test equipment including traffic, the speed test equipment, the length of the test equipment and other equipment, testing equipment, such as processes wherein the matching "Road Vehicles intelligent monitoring and recording system general technical conditions "(GA / T497) intelligent road vehicle monitoring and recording system, test equipment, such as a vehicle speed matching" vehicle speedometer "(GB 21255) and other vehicle speedometer, a ranging device such as a length of the test instrument, tape measure, etc. In addition to this in the past, but also other traffic information collection dedicated test equipment.
[0057] Test environment 2032 for auxiliary equipment test environment parameters, including hygrometer, meter visibility, the light measuring instrument, the measuring device meteorological and other environmental parameter measurement device. Monitoring protection auxiliary equipment for test-site for testing security during 2033, including cone barrels, guardrails, crash barrels, anti-intrusion devices, induction signs, protective equipment and monitoring equipment, warning lights, warning tape and so on. Installation testing apparatus comprises auxiliary test equipment installation and laying facilities monomer functional test apparatus, wherein the reference installation rod mounted, the tub cone, guardrail, anti barrels and other facilities may be arranged on the test track, laid on Sign traffic guidance test site at the distal end, anti-intrusion device, warning light, warning zone testers may be laid in the work area, the test area to improve worker safety. In an embodiment of the present invention, the data acquisition means further monomers function testing apparatus 2031 2032 auxiliary equipment and environmental testing and monitoring protective auxiliary equipment acquisition record test environment 2033, traffic information, image / video data. Also refers to the data transmission function testing apparatus monomer and environmental testing auxiliary equipment 2031 2032 2033 auxiliary equipment and monitoring and evaluation of protective platform 202 transport traffic acquisition, control commands, device parameters, test image / video data.
[0058] S200, the system function to obtain the test results to the test apparatus apparatus according to feedback of the results of various test instructions;
[0059] In an embodiment of the present invention specifically include:
[0060] Transmitting a plurality of test instructions to said test apparatus;
[0061] Receive the feedback device for each test result of the test instructions;
[0062] If the test results for each feedback device test command reached the preset criteria, the results of the functional test system test device compliance.
[0063] In an embodiment of the present invention, the plurality of test instructions comprising: a request, queries, responses, configurations, and upload statistics.
[0064] DETAILED be appreciated that, for other evaluation simulation apparatus internet Intelligent Vehicle systems, collaborative testing by test equipment system protocol, communication, interactive capability. When tested according to the protocol also received evaluation platform to platform evaluation test apparatus transmits a test result return command. In various requests, queries, answer, repeating the steps of the test configuration, statistics, and so upload the protocol, and the test results were recorded. Determining compliance of the test results. If the above test results are standard, determining the system functions to meet the requirements of the test device.
[0065] S300 system function test results, if the test device and the test results of the functional monomer test equipment are standard, it is determined that the traffic flow information collection capability to meet the requirements of the test apparatus;
[0066] It will be appreciated that the compliance determination of the test result comprises: the test traffic information collection device and testing the ability of each test composition in a standard condition are compared, under the condition if the test composition EUT traffic flow information collection capability test results satisfy the test criterion, the test device is determined traffic flow information collection capability of the test results under conditions of standard test composition; the test apparatus statistical traffic flow under all conditions tested combinations information gathering ability test result; if the device capability information collection traffic flow rate of the standard test conditions in all tested combinations is greater than or equal to a preset threshold value, it is determined that the traffic information collection device test capability to meet the requirements.
[0067] In order to achieve the evaluation of the test process, the test method further comprises:
[0068] The auxiliary apparatus of the third traffic flow conditions under various test results obtained evaluation information acquisition service result;
[0069] If the result of the evaluation standards service, the evaluation process is determined to meet the requirements.
[0070] In an embodiment of the present invention, the third traffic flow information acquisition result includes: the numerical test procedures and test environment, pictures and videos.
[0071] It should be understood that the auxiliary device laid on the road test, testers to improve test security while monitoring the testing process, and the environment. The value of auxiliary equipment during the test, the test environment, pictures, video and other data to the evaluation platform. Synchronization test functional monomers, repeating the above steps in a test different test roads, different test light and different weather test, and record the test results. Determining compliance of the test results. If these test results are standards, assessment service is determined to meet the requirements.
[0072] In summary, the test method Intelligent Vehicle Systems roadside apparatus traffic flow information acquisition capabilities provided by the embodiment according to the present invention, consider the field at different operating environments in terms of road, light, weather and other test scenarios closer to the actual complex the road environment. In the test scenario, the test equipment and test evaluation test apparatus internet traffic, average speed, single function and queue lengths, and other test equipment system functions Intelligent Vehicle communication system equipment links. This test method provided by the invention can effectively solve the problem that the lack of system-level testing roadside equipment traffic flow information collection capabilities of the problem can be close to the real environment to meet with Intelligent Vehicle Systems roadside traffic information collection device test requirements to improve the performance of intelligent vehicle systems roadside equipment, thus promoting intelligent vehicle systems roadside equipment products enterprise development.
[0073] It should be appreciated that in the specific test, the test vehicle 3011 according to the "motor vehicle license plate image recognition Specification" (GAT 833) including cars, vans, light trucks type, medium-heavy trucks, buses and other large vehicles, cars, vans, light trucks type belongs to small cars, medium-heavy trucks, large buses is a large car. The method includes a lane the vehicle is traveling in the travel, rolling on the line, across the lane, etc., refer to the test vehicle 3011 is not pressed, with the pressure across the lane and a lane boundary line or edge line running mode, generally more than 50% the number plate test pressure treated as the same across the lane to lane boundaries. According to road congestion "urban road traffic congestion evaluation system" including smooth, basic smooth, mild case of congestion, moderate congestion, severe congestion and so on. The test time, the test time for a single-level functional testing, sub-lane traffic flow information collected less than 30 minutes, the direction of less than 3 times the number of tests, for system-level functional testing, the test is not less than the number of through the platform 3 times.
[0074] Monomers during functional testing, testers binding test environment (e.g., light, weather, etc.) and general method (such as a test vehicle 3011, the vehicle is traveling, road congestion, the test time, etc.) specified EUT monomer level of 2011 functional testing. When the system functional testing, testers evaluation by other analog equipment platform 202, on the 2011 test apparatus for testing system-level functionality. When the auxiliary test item test, environmental testing and monitoring of auxiliary facilities and equipment 2032 2033 protective aids numerical test environment (such as light, weather, etc.), testing, etc., the picture / video and other data transmitted to the evaluation platform.
[0075] By below Figures 2 to 4 Specific implementation of the test method Intelligent Vehicle Systems roadside apparatus Traffic information collection capability provides the present invention will be described in detail.
[0076] Such as figure 2 As shown in, for example, a schematic embodiment of the test traffic.
[0077] 2011 microwave test equipment traffic flow detector, a road test for general two roads 1021, 1022 to test direction and to link with the destination, the test lane of the lane 1-4 1023. 3011 test vehicles including cars, trucks and other heavy vehicles, including social vehicles on the test track 1023, 3011, respectively, the test vehicle in the travel lane by traffic congestion is open. Specifically, the test procedure is as follows:
[0078] a. Pre-test preparation, the test body puts forward the test application to the relevant management department or third party agency. After the audited adoption, the test subject cooperation test mechanism completes the registration of the test application for the test application for the test, and changes can be revised. At the same time, the evaluation platform 202 assigns the test task to the tester, completes the test task registration allocation, has changeable cancellation, and informs the test application agency process, equipment installation, safety precautions and other services.
[0079] b. Installation and commissioning, first, the test device 2011 side is mounted on the test road 1021 road side, monomer function test device 2031, environmental test assist device 2032, monitoring protection equipment 2033 is mounted to the test road 1021 On the gantry, the monomer function test equipment 2031 main test section 1022 is the same as 1, 2 lanes and the intersection of 3, 4 lane traffic, to prevent flow test errors, monomer function testing of 1, 2, 3, 4 lane traffic test The lane traffic monitoring points of the equipment 2031 and the test equipment 2011 should be coinctered in the same traffic section, and the lane 1 and the lane 2 should be provided between the lane 1 and the lane 2, the interval is not more than 1 meter, and the length is not low before and after the monitoring point is not low. At 20 meters; monitoring the monitoring range of the monitoring equipment in the protective aid 2033 covers the vehicle flow monitoring point 10 meters before the car flow monitoring point, monitoring protective auxiliary equipment 2033 in the tapered bucket should be placed on the test road 1021 road side, or lane 1 The lane 2 is the same as the lane, or the lane 3 and the lane 4 are linear lines. Secondly, the test equipment 2011 and the evaluation platform 202 communication debugging, the two can work normally, transmit data; monomer function test equipment 2031, environmental test aid 2032, monitoring protective assist equipment 2033 and other equipment and evaluation platform 202 Communication debugging is successful, and the two can work normally and transmit data.
[0080] c. When the monomer function test, the test start time T 1 , Test end time t 2 Test time is T 2 -T 1 (Greater than 30 minutes). During the test time, in terms of lane 1 to the lane 4 bus flow measurement, the measured value of the vehicle flow test equipment is a i : i = 1, 2, 3, 4 (where i represents the lane, the traffic measurement value is transmitted to the evaluation platform 202), and the test device 2011 microwave vehicle detector vehicle flow measurement is B, respectively. i : i = 1, 2, 3, 4 (where i represents lane, traffic measurement value B i Transfer to the evaluation platform 202). Evaluation platform 202 according to A i : i = 1, 2, 3, 4 and b i : i = 1, 2, 3, 4 value, the vehicle flow measurement error is calculated in the direction of the track.
[0081] Terminal vehicle flow measurement error E i : i = 1, 2, 3, 4:
[0082]
[0083] Direction (same direction) car flow measurement error:
[0084]
[0085] Direction (direction) vehicle traffic measurement error:
[0086]
[0087] d. During the step C test, the environmental test assist device 2032 transmits the temperature, humidity, visibility, wind speed, rainfall, light level, etc. The facilities such as bell bucket, guardrail, anti-collision bucket can be arranged on the test lane, induced the marking of the remote traffic induction, anti-extraction equipment, warning lights, and warning bands can be placed in testers testing the work area, improve the test area Safety, monitoring protective equipment 2033 Monitoring device with environmental test assist device 2032, monomer function test device 2031 is mounted on the test rod, and the pictures and video in the test process (eg GB / T28181) -2011 "Safety Video Monitoring Network Information Transmission, Exchange, Control Technology Requirements") is transmitted to the evaluation platform 202.
[0088] e. In strong light (such as: sunlight during sunny), backlight (such as: sunlight oblique in sunny weather), flashing lights (such as: night conditions flashlight flashing) and night (eg my country East The area is 20 o'clock to 22 o'clock or winter 19 to 21 o'clock) under harsh conditions, as well as in rainfall (light rain, rain, heavy rain, rainstorm, rainfall over 50 mm for heavy rain), foggy (fog, thick Fog, group fog, such as less than 50 meters of big fog), snow (small snow, snow, big snow, blizzard, snowfall, snowfall), snowfall 20.0 ~ 30.0mm is blizzard), and windy (light wind, Breeze, strong wind, wind, such as wind speed 12m / s is a strong wind), repeat step C, test the 2011 vehicle flow measurement error.
[0089] f. When the system function test, the evaluation platform 202 simulates the external equipment of the road traffic signal control or other communication with the traffic information acquisition equipment, and sends a data frame according to the "Communication Protocol between road traffic signal control machine and vehicle detector". Frame start, data table (including link addresses, protocol version number, operation type, object identification, message content, etc.), check code, frame end composition, test test device 2011 connection request / answer, query request / answer, Time query / response / set, baud rate query / answer / set, parameter query / answer / set, statistics query / answer, etc. If the data frame begins 0x7e, the data sheet (link address 192.168.1.1, protocol version 0x10, operation type 0x81, object identification 0x01), and the frame end 0x7E.
[0090] g. In the test lane 1021 is the urban trunk road, urban sub-road, highway, expressway, ordinary first-level road, general secondary road, etc., repeat steps b to step f, test the test equipment 2011 monomer function And system functions.
[0091] h. Evaluation platform 202 automatically analyzes the value of steps b to the step G monomer function, only when the lane 1 to the lane 4 vehicle flow measurement accuracy ≥ 95%, lane 1 and lane 2 section to measure the traffic measurement accuracy ≥ 95%, lane 3 and lane 4 sections to the vehicle flow measurement accuracy ≥95%, the transduction equipment in the 2011 partial airway unit vehicle flow acquisition ability meets the requirements; The value is automatically analyzed, only when the test device 2011 connection request / answer, query request / answer, time query / answer / set, baud rate query / answer / set, parameter query / answer / set, statistics query / answer The correct, delayed no more than 100 milliseconds, evaluating the system functions of the test equipment 2011 meet the requirements. During addition, during the test, if the test personnel should be stopped, the test should be stopped, and if a traffic accident should be immediately handled, if a fault should be analyzed. Finally, the comprehensive test equipment 2011 monomer function, system function and environmental auxiliary test equipment, test protection aids, data automatic analysis results, the evaluation platform 202 automatically generates test reports, and evaluation platform 202 pairs In the process, the analysis of violations, faults, accidents, emergency, etc., evaluate the safety, normative and service of test services.
[0092] Such as image 3 As shown, the example is shown in the average vehicle speed test.
[0093] The test equipment 2011 is a microwave traffic stream detector, and the test road 1021 is a normal secondary road. The test direction 1022 is the same as the segment and the test driveway 1023 is a lane 1 to 4. Test the vehicle 3011 includes a social vehicle in a car such as a car, a heavy truck, on the test lane 1023, and the test vehicle 3011 is passed through the lanes, and the traffic congestion is smooth. The specific test process is as follows:
[0094] a. Step A of the same car flow test embodiment.
[0095] b. In this step, step b of the vehicle flow test embodiment is that the monomer function test device 2031 and the test device 2011 monitoring the coincidence cross section is a speed monitoring point, and the rest is the same.
[0096] c. When the monomer function test, the test start time T 1 , Test end time t 2 Test time is T 2 -T 1 Test 100 units of the vehicle 3011. During the test time, in terms of the average speed measurement of the lane 1 to the lane 4, the measurement value of the vehicle speed test equipment is (i shows the lane, N represents the number of vehicles 3011, the speed measurement value Transfer to the evaluation platform 202), the test device 2011 microwave vehicle detector speed measurement value is (i shows lane coding, n means the number of vehicles 3011, vehicle speed measurement Transfer to the evaluation platform 202). Evaluation platform 202 and Value, the average speed measurement error is calculated in the direction of the track.
[0097] Average speed measurement error f i : i = 1, 2, 3, 4:
[0098]
[0099] The average speed measurement error of the partial direction (co-direction):
[0100]
[0101] Direct direction (pair) average speed measurement error:
[0102]
[0103] d. Step d of the same car flow test embodiment.
[0104] e. Step E of the same car flow test example, test the average speed measurement error of the test equipment 2011.
[0105] f. Step f of the same car flow test embodiment.
[0106] g. Step g of the same car flow test embodiment.
[0107] h. Evaluation platform 202 automatically analyzes the value of steps b to step g, only when the lane 1 to the lane 4 each average speed measurement accuracy ≥ 95%, lane 1 and lane 2 sections to the average speed measurement accuracy ≥95 %, Lane 3 and lane 4 sections to the average speed measurement accuracy ≥ 95%, the transit stream acquisition capability of the transit stream in the secondary airway in the test equipment meets the requirements; Automatic analysis, only when testing the test device 2011 connection request / answer, query request / answer, time query / answering / set, baud rate query / answer / set, parameter query / answer / set, statistics query / answer, etc. Correct, delayed no more than 100 milliseconds, evaluating the system function of the test equipment 2011 meets the requirements. During addition, during the test, if the test personnel should be stopped, the test should be stopped, and if a traffic accident should be immediately handled, if a fault should be analyzed. Finally, the comprehensive test equipment 2011 monomer function, system function and environmental auxiliary test equipment, test protection aids, data automatic analysis results, the evaluation platform 202 automatically generates test reports, and evaluation platform 202 pairs In the process, the analysis of violations, faults, accidents, emergency, etc., evaluate the safety, normative and service of test services.
[0108] Such asFigure 4 As shown, a schematic diagram of an embodiment for queuing length test.
[0109] The test equipment 2011 is a microwave traffic stream detector, and the test road 1021 is a general secondary road. The test direction 1022 is the intersection of the intersection, and the test driveway 1023 is the lane 1 and lane 2. Test Vehicle 3011 includes cars such as cars, heavy trucks and other vehicles, on the test lane 1023, test vehicle 3011, passed through the lanes, and traffic congestion is smooth. The specific test process is as follows:
[0110] a. Step A of the same car flow test embodiment.
[0111] b. In this step, step b of the vehicle flow test embodiment is that the monomer function test device 2031 and the test device 2011 are the starting point of the queuing length test, and the rest is the same.
[0112] c. When the monomer function test, the test start time T 1 , Test end time t 2 Test time is T 2 -T 1 Inside, the queuing length test is 100 times. During the test time, in terms of lane 1 to the lane 4 queue length measurement, the measured value of the queuing length test equipment is W i n : i = 1, 2; n = 1, 2, 3, ..., 99, 100 (i represents the lane, n represents the number of tests, each queued length measurement value W i n Transfer to the evaluation platform 202), the test equipment 2011 microwave vehicle detector queuing length measurement is respectively (i means the lane, n represents the number of tests, and transmits the queue length measurement each time to the evaluation platform 202). Evaluation platform 202 according to W i n : i = 1, 2; n = 1, 2, 3, ..., 99, 100 and Value, the tuning direction calculates the queuing length measurement error.
[0113] Bottom aircraft queue length measurement error P i : i = 1, 2 as follows:
[0114]
[0115] Direction (same as the same direction) queuing length measurement error:
[0116]
[0117] Direction (direction) queuing length measurement error:
[0118]
[0119] d. Step d of the same car flow test embodiment.
[0120] e. Step E of the same car flow test example, test the test equipment 2011 queued length measurement error.
[0121] f. Step f of the same car flow test embodiment.
[0122] g. Step g of the same car flow test embodiment.
[0123] h. Evaluation platform 202 automatically analyzes the value of steps b to step g, only when the lane 1 and the lane 2 queue length measurement accuracy ≥ 95%, lane 1 and lane 2 sections are queued to queue the length measurement accuracy ≥95 %, The test equipment 2011 partial passage lane monomer queued length acquisition ability meets the requirements; Query request / answer, time query / answer / setup, baud rate query / answer / set, parameter query / answer / set, statistical query / answer, etc., delay does not exceed 100 milliseconds, evaluate the system of test equipment 2011 Function meets the requirements. During addition, during the test, if the test personnel should be stopped, the test should be stopped, and if a traffic accident should be immediately handled, if a fault should be analyzed. Finally, the comprehensive test equipment 2011 monomer function, system function and environmental auxiliary test equipment, test protection aids, data automatic analysis results, the evaluation platform 202 automatically generates test reports, and evaluation platform 202 pairs In the process, the analysis of violations, faults, accidents, emergency, etc., evaluate the safety, normative and service of test services.
[0124] In summary, the test method of the intelligent lane system road side equipment traffic flow information collection capacity provides the standardization of intelligent road system testing and improves the performance of smart road system road side equipment.
[0125] It will be appreciated that the above embodiment is merely an exemplary embodiment employed by the principles of the present invention, however, the present invention is not limited thereto. Various modifications and modifications can be made without departing from the spirit and substantors of the present invention, and these variations and modifications can be made as the scope of protection of the present invention.
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