CN104751670A - Urban traffic signal control running diagnostic system - Google Patents
Urban traffic signal control running diagnostic system Download PDFInfo
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- CN104751670A CN104751670A CN201510125334.6A CN201510125334A CN104751670A CN 104751670 A CN104751670 A CN 104751670A CN 201510125334 A CN201510125334 A CN 201510125334A CN 104751670 A CN104751670 A CN 104751670A
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- G08G1/00—Traffic control systems for road vehicles
- G08G1/097—Supervising of traffic control systems, e.g. by giving an alarm if two crossing streets have green light simultaneously
Abstract
The invention relates to an urban traffic signal control running diagnostic system, and refers to the technical field of traffic signal control and traffic simulation. The urban traffic signal control running diagnostic system aims to provide comprehensive, subjective and quantitative diagnostic evaluation for the existing signal control system. The diagnostic system is mainly composed of a lower computer and an upper computer, wherein the lower computer is a diagnostic machine; the diagnostic system is connected with a road side signal machine, the other traffic flow detector or a computer, so as to read the traffic flow detection data and signal timing dial data in real time under the reality or hardware-in-loop simulation environment, and also perform the local storage, upload server, and other operation; the upper computer mainly includes a server end and a client end, wherein the server end can store the data sent by the diagnostic machine, and the client end can load corresponding data from the server end as well as a local memory card, so as to calculate the change trend of the diagnostic index within a certain time section and provide a report for improvement suggestions; thus the urban traffic signal control running diagnostic system can provide an intuitional and visible diagnostic effect for managers.
Description
Technical field
The invention belongs to technical field of traffic signal control, be mainly used in and the science of Controlling Traffic Signals in Urban Roads system running state and effect is diagnosed and assessment, can be used as Traffic Engineering student experimenting educational aid simultaneously.
Background technology
The core means that traffic flow safety was blocked up as alleviation crossing, improved in urban traffic signal control, play very crucial effect in traffic system.On the one hand, it is improved bus capacity by the signal control strategy optimized, is reduced the delay time at stop; On the other hand, it can ensure the safety of vehicle and pedestrian by key parameter during adjustment signal Phase-switching.Therefore, the quality of whistle control system is directly connected to safety and the efficiency of roadnet.
But in the City road traffic system of reality runs, several situation is of common occurrence below: green light period without vehicle by but other direction is queued up longer; Clash at close to an end vehicle that the moment passes through and the vehicle that other direction begins through of green light; Pedestrian makes a dash across the red light due to waits for too long; When pedestrian goes to road central authorities, pedestrian signal terminates and opposed vehicle begins through etc.Above these phenomenons generation none be not that whistle control system runs and improperly to cause.Its main cause has following several respects:
1, at present the whistle control system that uses of each big city of China, mainly based on external, indiscriminately imitated foreign system operational mode and have ignored its applicability because there is larger difference in traffic flow both at home and abroad, especially domestic bicycle and pedestrian's ratio higher;
2, domestic choosing often using experimental knowledge as selection basis for estimation mode various in whistle control system and parameter, lacks theories integration;
3, after date during longer one section of whistle control system operation, there is certain deviation with setting theoretical value in its system cloud gray model measured value, but domestic still shortage truly effectively, is objectively diagnosed and evaluation system existing signal controlling run.
In addition, traditionally to the evaluation that traffic signal control system operational factor and benefit are carried out, in evaluation method or in evaluation index, all there are some defects.
In evaluation method, traditional evaluation mainly carries out on-the-spot direct observation at intersection, carries out assay by adding up on-the-spot traffic flow data.This evaluation method feasibility is not high, needs to drop into a large amount of manpower and materials costs and carries out site test, not only time-consuming but also require great effort.In addition, this evaluation method is mostly just assess the running status of teleseme, evaluation signal control program cannot can meet current traffic flow environment, particularly exceptional hardship be existed for the situation of running of (such as bus signals is preferential) traffic control system under complicated transportation condition and the real-time of phase information and Rationality Assessment aspect.The more important thing is that a little error just may cause blocking up greatly of traffic, even causes traffic hazard if directly tested at the scene.
In evaluation index, mainly weigh integrative design intersection effect by indexs such as vehicles average delay, stop frequency and queue lengths traditionally.But the more difficult survey of the indexs such as vehicles average delay itself, the calculated results is large compared with actual value error.In addition, these indexs existing can not reflect intersection traffic stream running status on the one hand comprehensively, exactly; These indexs only consider the result of signal controlling run on the other hand, do not consider the quality causing the middle controling parameters of these results.
Summary of the invention
Based on above-mentioned situation, the object of the invention is to propose a kind of urban traffic signal controlling run diagnostic system, so that Traffic flow detecting data under traffic signalization and signal timing dial data can be read in real time, then objective, comprehensive, effective diagnostic evaluation is carried out to it, and provide diagnostic result intuitively for supvr, thus be conducive to supvr and regulate and control and improve existing control mode signal and systematic parameter, realize the maximizing the benefits of road traffic system.
For achieving the above object, the present invention proposes a kind of urban traffic signal controlling run diagnostic system, and this system is formed primarily of slave computer 01 and host computer 02, wherein:
Slave computer 01 is diagnostic equipment 03, described diagnostic equipment 03 is by power module 30, diagnose interface module 31, simulation interface module 32, signal conversion module 33, display module 34, key-press module 35, micro controller module 36, information transmission modular 37 and local memory module 04 form, wherein micro controller module 36 is core, its input end connects power module 30 respectively, diagnose interface module 31, simulation interface module 33 and key-press module 35, its output terminal connects simulation interface module 32 respectively, signal conversion module 33, display module 34, information transmission modular 37 and local memory module 04, diagnostic equipment 03 can be switched to two kinds of different mode of operations by key-press module 35, be respectively actual crossing pattern and hardware-in-loop simulation pattern, wherein: under the pattern of actual crossing, by diagnose interface module 31 and trackside teleseme or other Traffic flow detecting equipment connections, can realize running the traffic signalization of reality diagnosing, under hardware-in-loop simulation pattern, diagnose interface module 31, signal conversion module 33 are connected with actual signal machine, simulation interface module 32 is connected with computing machine, thus coordinate actual signal machine or host computer client 06 to complete real-time reading to Traffic flow detecting data and signal timing dial data and transmission, and then realize diagnosing running based on the traffic signalization under the simulated environment of hardware in loop, display module 34 can show Traffic flow detecting and signal timing dial data in real time, local memory module 04 can complete and store this locality of Traffic flow detecting data and signal timing dial data, information transmission modular 37 can realize the real-time transmission to Traffic flow detecting data and signal timing dial data,
Host computer 02 comprises server end 05 and client 06, server end 05 is made up of data reception module 50 and data memory module 51, the input end connection diagnostic instrument 03 of data reception module 50, the output terminal connection data memory module 51 of data reception module 50, the output terminal of data memory module 51 connects client 06; Server end completes and receives and store the Traffic flow detecting data and timing data that diagnostic equipment 03 sends, and the storage of data is preserved, for the diagnostic analysis of client 06 is prepared according to organizational forms such as regional number, crossing number, dates;
Client 06 has two kinds of different mode of operations, be respectively hardware-in-loop simulation pattern and diagnostic analysis pattern, wherein: under hardware-in-loop simulation pattern, client 06 is made up of communication module 65 and data exchange module 66, the signal timing dial data input port of communication module 65 is connected with diagnostic equipment 03, the signal timing dial data output of communication module 65 is connected with the input port of data exchange module 66, and the delivery outlet of the signal timing dial data of data exchange module 66 is connected with simulation software, the Traffic flow detecting data input port of communication module 65 is connected with the delivery outlet of data exchange module 66, and the Traffic flow detecting data output of communication module 65 is connected with diagnostic equipment, and the Traffic flow detecting data input port of data exchange module 66 is connected with simulation software, described client completes Traffic flow detecting data and the transmission of signal timing dial data between simulation software and diagnostic equipment, under diagnostic analysis pattern, client 06 arranges module 60 by crossing essential information, diagnosis index determination module 61, Data import module 62, diagnosis index computing module 63 and analysis improve module 64 and form, crossing essential information arranges the input end of the output terminal connection diagnostic index determination module 61 of module 60, the output terminal difference connection data load-on module of diagnosis index determination module 61 and the input end of diagnosis index computing module 63, the output terminal linking parsing of diagnosis index computing module 63 improves module 64, input end connection server end 05 and the local memory module 04 respectively of Data import module 62, first described client will complete and arrange some essential informations of the emulation that will diagnose or real crossing, and then determine the index that can diagnose, relevant both can load corresponding region number, the Traffic flow detecting at crossing number and signal timing dial data from server after setting completed, or by reading the data be saved in local memory module 04, thus complete the calculating of dependent diagnostic index and Improving advice report can be provided, concrete steps are as follows:
(1) according to actual needs, diagnostic equipment switched to any one in actual crossing pattern and hardware-in-loop simulation pattern by the key-press module of diagnostic equipment 03;
(2) by the diagnose interface module of diagnostic equipment 03 and trackside teleseme or other Traffic flow detecting equipment connections, under diagnostic equipment 03 is operated in actual crossing pattern, according to the communication protocol that teleseme provides, the Traffic flow detecting data of the real crossing of real-time reading and signal timing dial data, can be kept at local memory module 04 as required or upload onto the server end 05 through information transmission modular;
(3) by the diagnose interface module of diagnostic equipment 03, signal conversion module is connected with actual signal machine, simulation interface module is connected with computing machine, under host computer client 06 and diagnostic equipment 03 are all operated in hardware-in-loop simulation pattern, the micro controller module of diagnostic equipment 03 respectively with actual signal machine, host computer client 06 communicates, obtain traffic flow virtual detection data from host computer client 06 and send to teleseme external input terminals through signal conversion module, Traffic flow detecting data and signal timing dial data are read from teleseme PERCOM peripheral communication end, and be kept at local memory module 04 or while information transmission modular uploads onto the server end 05, signal timing dial data are sent to host computer client 06 through simulation interface module, and then control the operation of intersection simulation,
(4) server end 05 of host computer completes and receives and store the Traffic flow detecting data and signal timing dial data that diagnostic equipment 03 sends, and the storage of data is preserved according to organizational forms such as regional number, crossing number, dates;
(5) under client 06 is operated in hardware-in-loop simulation pattern, first to complete and some basic parameters of the simulation software that will run are arranged, as: emulation cycle, simulation velocity, simulation accuracy etc., and then realize the traffic flow virtual detection data under emulation platform to pass to diagnostic equipment 03, receive the signal timing dial data that diagnostic equipment 03 is sent simultaneously, and upgrade the signal lamp state in simulation software thus;
(6) under client 06 is operated in diagnostic analysis pattern, first to complete and some essential informations of the crossing that will diagnose are arranged, as entrance driveway clearance direction, coil layout etc., and then determine which the index that can evaluate has, its diagnosis index mainly comprises signal and controls basic parameter, signal controls timing parameter and signal control effects parameter, be correlated with and both can load corresponding region number from server end after setting completed, the Traffic flow detecting data at crossing number and signal timing dial data, also by reading the data be saved in local memory module, after index and data are determined, get final product the variation tendency of diagnostic analysis index in certain hour section, and Improving advice report can be provided, visual diagnostic result directly perceived is provided to supvr,
By step (1), diagnostic equipment 03 is switched to different mode of operations according to actual needs, if actual crossing pattern, then perform step (2) and (4); If hardware-in-loop simulation pattern, then perform step (3), (4) and (5), all after server end 05 or local memory module 04 have accumulated certain Traffic flow detecting data and signal timing dial data to the operation of certain traffic signalization, just operating procedure (6).
The advantage of urban traffic signal controlling run diagnostic system of the present invention is the following aspects:
1, the data of this system diagnostics not only comprise teleseme output data, and the actual traffic stream also comprised under other traffic signalization detects data and simulation data data etc.
2, evaluation method has the feature of high accuracy, high-level efficiency, low cost, can overcome the shortcoming of outdoor investigation and analysis traditionally completely.
3, evaluation index is more comprehensive, not only consider efficiency, safety, the operational effect factor such as comfortable, and the signal can evaluating reflection traffic flow running rate controls key parameter quality.
4, this system output can provide quantitatively for supvr, diagnostic result intuitively, be convenient to supvr and regulate and control existing control mode signal and systematic parameter.
5, the present invention sets up domestic first traffic signalization operational diagnostics system, effectively, objectively diagnoses and evaluates existing whistle control system, make it give full play to control benefit profound level.
Accompanying drawing explanation
Fig. 1 is the diagnostic system composition schematic diagram run for real traffic signalization of the present invention.
Fig. 2 is diagnostic equipment of the present invention composition schematic diagram.
Fig. 3 is server end of the present invention composition schematic diagram.
Fig. 4 is client of the present invention composition schematic diagram.
Fig. 5 is actual crossing actuated signal control operational diagnostics schematic diagram.
Number in the figure: 01 is slave computer, 02 is host computer, 03 is diagnostic equipment, 04 is local memory module, 05 is server end, 06 is client, 30 is power module, 31 is diagnose interface module, 32 is simulation interface module, 33 is signal conversion module, 34 is display module, 35 is key-press module, 36 is micro controller module, 37 is information transmission modular, 50 is data reception module, 51 is data memory module, 60 arrange module for crossing essential information, 61 is diagnosis index determination module, 62 is Data import module, 63 is diagnosis index computing module, 64 improve module for analysis, 65 is communication module, 66 is data exchange module.
Embodiment
By reference to the accompanying drawings the present invention is described in detail below by embodiment.
Embodiment 1:
As Figure 1-Figure 4, form primarily of slave computer 01 and host computer 02 two large divisions, slave computer 01 is diagnostic equipment 03 namely, primarily of hardware device compositions such as embedded microcontroller, serial communication, radio communication, SD cards; Host computer 02 mainly comprises server end 05 and client 06 two parts, wherein:
Diagnostic equipment 03 is by power module, key-press module, display module, diagnose interface module, simulation interface module, signal conversion module, micro controller module, information transmission and local memory module composition, diagnostic equipment 03 can be switched to the actual crossing mode of operation different with hardware-in-loop simulation two kinds by key-press module, respectively the traffic signalization of reality is run, traffic signalization based on hardware in loop runs to be diagnosed, the former only need by diagnose interface module and trackside teleseme or other Traffic flow detecting equipment connections, the latter need by diagnose interface module, signal conversion module is connected with teleseme, simulation interface module is connected with computing machine, thus coordinate actual signal machine or host computer client 06 to complete real-time reading to Traffic flow detecting data and signal timing dial data and transmission, local storage, the operations such as upload server, display module can show Traffic flow detecting and signal timing dial information in real time, display module can show Traffic flow detecting and signal timing dial data in real time, local memory module 04 can complete and store this locality of Traffic flow detecting data and signal timing dial data, information transmission modular 37 can realize the real-time transmission to Traffic flow detecting data and signal timing dial data,
Server end 05 is made up of data reception module, data memory module, complete and receive and store the Traffic flow detecting data and timing data that diagnostic equipment 03 sends, the storage of data is preserved, for the diagnostic analysis of client 06 is prepared according to organizational forms such as regional number, crossing number, dates;
Client 06 has two kinds of different mode of operations, be respectively hardware-in-loop simulation pattern and diagnostic analysis pattern, under hardware-in-loop simulation pattern, client 06 is made up of communication module 65, data exchange module 66, jointly completes Traffic flow detecting data and the transmission of signal timing dial data between simulation software and diagnostic equipment, under diagnostic analysis pattern, client 06 arranges module 60 by crossing essential information, diagnosis index determination module 61, Data import module 62, diagnosis index computing module 63 and analysis improve module 64 and form, first to complete and some essential informations of the emulation that will diagnose or real crossing are arranged, and then determine the index that can diagnose, be correlated with and both can load corresponding region number from server after setting completed, the Traffic flow detecting at crossing number and signal timing dial data, also by reading the data be saved in local memory module 04, thus complete the calculating of dependent diagnostic index and Improving advice report can be provided,
As shown in Figure 5, this crossing is actuated signal control crossing, teleseme is the traffic signaling equipment II type GBS2121 of Shanghai Baokang Electronic Control Engineering Co., Ltd., according to the data-optimized timing that whistle control system detects in real time, and by timing scheme real-time Transmission to signal lamp.
Precious health GBS2121 traffic signaling equipment is the teleseme based on microprocessor, and its hardware circuit and software configuration all have employed modular construction.In teleseme, be equipped with wagon detector can make it possess adaptive control function, or by the corresponding module of software and hardware of configuration, just can be used as the crossing level controller of coordinated control system.In teleseme, " the car test plate " of " control box " can receive vehicle coil detection signal, and " tablet " of " control box " can detect or the data of infrared detection by receiver, video; " master control borad " of teleseme is core control part, plate is equipped with serial communication port and cable interface, can be used for telecommunication.
The diagnostic equipment 03 that urban traffic signal controlling run diagnostic system of the present invention is used, its composition as shown in Figure 2, be connected with the serial communication port on teleseme master control borad by the serial ports RS232 in diagnose interface module 31, then by the Traffic flow detecting data under the micro controller module 36 in real time control of reading signal and signal timing dial data, and by universal serial bus SPI by the data write SD card that reads in real time, and to be uploaded onto the server end 05 by wireless blue tooth, first client 06 arranges by crossing essential information the crossing that module 60 completes diagnosing and arranges, as entrance driveway clearance direction, coil layout etc., and then in diagnosis index determination module 61, determine the index that can evaluate, be correlated with and namely from server end 05 or SD card, load corresponding region number by Data import module 62 after setting completed, the Traffic flow detecting at crossing number detects and signal timing dial data, after index and data are determined, just annual variation is exported by index calculate module 63 according to user's request, the moon becomes, the diagnosis index trend map of the rules such as week change and day change, and by analysis improve module 64 provide Improving advice report, there is provided quantitative to supvr, the diagnostic result such as deagnostic report or chart intuitively.
The evaluation index of the present embodiment urban traffic signal controlling run diagnostic system can assess integrative design intersection state all sidedly, it not only comprises effect assessment parameter traditionally, as delay, queuing etc., also comprise and wait for TIS service time, green time occupation rate GOR, phase place inefficacy ratio PFR, complete red time break rules and regulations rate RVR etc. signal controls key parameter index.
Last it is noted that above embodiment is only for illustration of the present invention and unrestricted technical scheme described in the invention; Therefore, although this explanation with reference to above-mentioned real-time example to inventions have been detailed description, it will be understood by those of skill in the art that and still can modify to the present invention or equivalent to replace; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, all should be encompassed in right of the present invention.
Claims (6)
1. a urban traffic signal controlling run diagnostic system, comprises slave computer (01) and host computer (02), it is characterized in that:
Slave computer (01) is diagnostic equipment (03), described diagnostic equipment (03) is by power module (30), diagnose interface module (31), simulation interface module (32), signal conversion module (33), display module (34), key-press module (35), micro controller module (36), information transmission modular (37) and local memory module (04) composition, wherein micro controller module (36) is core, its input end connects power module (30) respectively, diagnose interface module (31), simulation interface module (33) and key-press module (35), its output terminal connects simulation interface module (32) respectively, signal conversion module (33), display module (34), information transmission modular (37) and local memory module (04), diagnostic equipment (03) can be switched to two kinds of different mode of operations by key-press module (35), be respectively actual crossing pattern and hardware-in-loop simulation pattern, wherein: under the pattern of actual crossing, by diagnose interface module (31) and trackside teleseme or other Traffic flow detecting equipment connections, can realize running the traffic signalization of reality diagnosing, under hardware-in-loop simulation pattern, diagnose interface module (31), signal conversion module (33) are connected with actual signal machine, simulation interface module (32) is connected with computing machine, thus coordinate actual signal machine or host computer client (06) to complete real-time reading to Traffic flow detecting data and signal timing dial data and transmission, and then realize diagnosing running based on the traffic signalization under the simulated environment of hardware in loop, display module (34) can show Traffic flow detecting and signal timing dial data in real time, local memory module (04) can complete and store this locality of Traffic flow detecting data and signal timing dial data, information transmission modular (37) can realize the real-time transmission to Traffic flow detecting data and signal timing dial data,
Host computer (02) comprises server end (05) and client (06), server end (05) is made up of data reception module (50) and data memory module (51), the input end connection diagnostic instrument (03) of data reception module (50), the output terminal connection data memory module (51) of data reception module (50), the output terminal of data memory module (51) connects client 06; Server end completes and receives and store the Traffic flow detecting data and timing data that diagnostic equipment (03) sends, and the storage of data is preserved, for the diagnostic analysis of client (06) is prepared according to regional number, crossing number, date mode;
Client (06) has two kinds of different mode of operations, be respectively hardware-in-loop simulation pattern and diagnostic analysis pattern, wherein: under hardware-in-loop simulation pattern, client (06) is made up of communication module (65) and data exchange module (66), the signal timing dial data input port of communication module (65) is connected with diagnostic equipment (03), the signal timing dial data output of communication module (65) is connected with the input port of data exchange module (66), the delivery outlet of the signal timing dial data of data exchange module (66) is connected with simulation software, the Traffic flow detecting data input port of communication module (65) is connected with the delivery outlet of data exchange module (66), the Traffic flow detecting data output of communication module (65) is connected with diagnostic equipment, and the Traffic flow detecting data input port of data exchange module (66) is connected with simulation software, described client completes Traffic flow detecting data and the transmission of signal timing dial data between simulation software and diagnostic equipment, under diagnostic analysis pattern, client (06) arranges module (60) by crossing essential information, diagnosis index determination module (61), Data import module (62), diagnosis index computing module (63) and analysis improve module (64) composition, crossing essential information arranges the input end of output terminal connection diagnostic index determination module (61) of module (60), the output terminal difference connection data load-on module of diagnosis index determination module (61) and the input end of diagnosis index computing module (63), the output terminal linking parsing of diagnosis index computing module (63) improves module (64), input end connection server end 05 and the local memory module (04) respectively of Data import module (62), first described client will complete and arrange the essential information of the emulation that will diagnose or real crossing, and then determine diagnosable index, relevant both can load corresponding region number, the Traffic flow detecting at crossing number and signal timing dial data from server after setting completed, or by reading the data be saved in local memory module (04), thus complete the calculating of dependent diagnostic index and Improving advice report can be provided, concrete steps are as follows:
(1) according to actual needs, diagnostic equipment switched to any one in actual crossing pattern and hardware-in-loop simulation pattern by the key-press module of diagnostic equipment (03);
(2) by the diagnose interface module of diagnostic equipment (03) and trackside teleseme or other Traffic flow detecting equipment connections, under diagnostic equipment (03) is operated in actual crossing pattern, according to the communication protocol that teleseme provides, the Traffic flow detecting data of the real crossing of real-time reading and signal timing dial data, can be kept at local memory module (04) as required or upload onto the server end (05) through information transmission modular;
(3) by the diagnose interface module of diagnostic equipment (03), signal conversion module is connected with actual signal machine, simulation interface module is connected with computing machine, under host computer client (06) and diagnostic equipment (03) are all operated in hardware-in-loop simulation pattern, the micro controller module of diagnostic equipment (03) respectively with actual signal machine, host computer client (06) communicates, obtain traffic flow virtual detection data from host computer client (06) and send to teleseme external input terminals through signal conversion module, Traffic flow detecting data and signal timing dial data are read from teleseme PERCOM peripheral communication end, and be kept at local memory module (04) or while information transmission modular uploads onto the server end (05), signal timing dial data are sent to host computer client (06) through simulation interface module, and then control the operation of intersection simulation,
(4) server end (05) of host computer completes and receives and store the Traffic flow detecting data and signal timing dial data that diagnostic equipment (03) sends, and the storage of data is preserved according to regional number, crossing number and date mode;
(5) under client (06) is operated in hardware-in-loop simulation pattern, first to complete and some basic parameters of the simulation software that will run are arranged, described basic parameter is any one in emulation cycle, simulation velocity or simulation accuracy, and then realize the traffic flow virtual detection data under emulation platform to pass to diagnostic equipment (03), receive the signal timing dial data that diagnostic equipment (03) is sent simultaneously, and upgrade the signal lamp state in simulation software thus;
(6) under client (06) is operated in diagnostic analysis pattern, first to complete and some essential informations of the crossing that will diagnose are arranged, described essential information is entrance driveway clearance direction or coil layout, and then determine which valuable index has, its diagnosis index mainly comprises signal and controls basic parameter, signal controls timing parameter and signal control effects parameter, be correlated with and both can load corresponding region number from server end after setting completed, the Traffic flow detecting data at crossing number and signal timing dial data, or by reading the data be saved in local memory module, after index and data are determined, get final product the variation tendency of diagnostic analysis index in certain hour section, and Improving advice report can be provided, visual diagnostic result directly perceived is provided to supvr,
By step (1), diagnostic equipment (03) is switched to different mode of operations according to actual needs, if actual crossing pattern, then perform step (2) and (4); If hardware-in-loop simulation pattern, then perform step (3), (4) and (5), all after server end (05) or local memory module (04) have accumulated Traffic flow detecting data and signal timing dial data to the operation of certain traffic signalization, just operating procedure (6).
2. urban traffic signal controlling run diagnostic system according to claim 1, it is characterized in that diagnostic equipment not only can be connected with trackside teleseme, other Traffic flow detecting equipment and computing machine, Traffic flow detecting data under real-time reading traffic signalization and signal timing dial data, or can be used as the signal conversion equipment of hardware in loop, connect traffic simulation platform and teleseme, realize the Traffic flow detecting data in emulation platform to reach teleseme, the signal timing dial data that teleseme produces are reached in emulation platform.
3. urban traffic signal controlling run diagnostic system according to claim 1, it is characterized in that diagnostic equipment to be mounted in multiple urban road intersection trackside teleseme, Traffic flow detecting data under traffic signalization and signal timing dial data are all uploaded to a server, realize multiple client and share a data source.
4. urban traffic signal controlling run diagnostic system according to claim 1, it is characterized in that local memory module is a part for diagnostic equipment (03), can real time record Traffic flow detecting data and signal timing dial data, but can be separated with diagnostic equipment (03), thus be connected with computing machine for the diagnostic analysis of client (06) provides data.
5. urban traffic signal controlling run diagnostic system according to claim 1, it is characterized in that diagnostic system can be diagnosed the traffic signalization operation of reality early stage, draw diagnosis report and after providing Improving advice, can by the Traffic flow detecting data in early stage, utilization traffic simulation software builds the crossing operation that accurate road net model carrys out simulating reality, relend and help diagnostic system to diagnose, to check the rationality of Improving advice the traffic signalization operation based on hardware in loop.
6. urban traffic signal controlling run diagnostic system according to claim 1, it is characterized in that for dissimilar traffic signalization runs, the diagnosis index that diagnostic system can provide also is different, main relevant with traffic signalization mode, detector number and layout, and diagnosis content not only relates to the result of signal controlling run, also consider the quality causing the middle controling parameters of these results, the calculating of diagnosis index does not rely on computer simulation model yet, by collecting Traffic flow detecting data and the calculating of signal timing dial data.
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| CN106408987A (en) * | 2016-10-31 | 2017-02-15 | 安徽科力信息产业有限责任公司 | Method and system for accurate evaluation of signal control effect by use of Internet |
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