CN203054934U - Long communication area electronic toll collection system using laser radar - Google Patents
Long communication area electronic toll collection system using laser radar Download PDFInfo
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- CN203054934U CN203054934U CN 201220537604 CN201220537604U CN203054934U CN 203054934 U CN203054934 U CN 203054934U CN 201220537604 CN201220537604 CN 201220537604 CN 201220537604 U CN201220537604 U CN 201220537604U CN 203054934 U CN203054934 U CN 203054934U
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- 230000008859 change Effects 0.000 description 7
- 230000005674 electromagnetic induction Effects 0.000 description 5
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- 230000035945 sensitivity Effects 0.000 description 3
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- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
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- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
The utility model relates to a long communication area electronic toll collection system using a laser radar. The system comprises a lane main controller, a license plate identification unit, an antenna, an electric barrier, a fee display, a rod falling coil, and a lane vidicon. The antenna projects towards slanting underneath directions to form an antenna communication coverage area. Two sides of the antenna communication coverage area are provided with vehicle isolating devices. The lane main controller is respectively connected with the license plate identification unit, the antenna, the electric barrier, the fee display, the rod falling coil, and the lane vidicon. The system is characterized in that the lane main controller is connected with the laser radar. Beneficial effects of the system are that vehicle passage speed and trade success rates are ensured, probability of backing up caused by interference of vehicles followed, vehicle types can be identified, changing OBU to run away the expense is stopped, and instantaneous speed of vehicles on the lane can be counted. The system can count vehicle congestion degree on an ETC lane, accurate vehicle positions can be identified in effective communication, and enables to not cut an earth sensing coil.
Description
(1) technical field
The utility model relates to a kind of electronic charging system without parking, particularly a kind of long comunication area electronic charging system without parking that uses laser radar.
(2) background technology
In electronic charging system without parking (ETC), vehicle carries out microwave communication by board units (OBU) and antenna (RSU), finish the electric non-stop toll transaction, track layout, equipment configuration and transaction flow etc. have clearly regulation in highway networking non-parking charge standard.Wherein the adjustment of communication zone is the difficult point of ETC lane system debugging between RSU and the OBU, and by the emissive power of adjusting RSU and the length that communication zone can be adjusted in the angle of inclination, but there is following problem in the simple adjustment communication zone that relies on:
When (1) communication zone is long, can exist many cars to be in the situation in antenna communication zone simultaneously, vehicle when the front produces transaction unusually because of reasons such as no electronic tags, during car arm's length transaction then, it is the transaction which car is finished that the ETC system is not distinguished, the so-called problem of disturbing with car will occur, this moment, front truck was let pass then that car can't pass through, thereby caused customer complaint or freeway toll loss.
(2) if limit the length of communication zone, when guaranteeing before electric railing, car to be arranged, the front windshield of back car (OBU installation site) can not enter communication zone, communication zone may be just very short so, to some vehicle, this zone be not enough to wake up OBU finish the transaction lift railing, vehicle can only pass through at a slow speed, thereby has reduced the traffic efficiency in ETC track.
(3) effectively communication zone is subjected to OBU setting angle, vehicle front windshield to multiple factor affecting such as the sensitivity of the shielding of OBU, OBU and dump energies, and the restriction that relies on communications zone length merely can't be satisfied the fast current needs of all vehicles.
Vehicle is the important evidence of vehicle toll in addition, and the vehicle of ETC distinguish of system vehicle only relies on the vehicle of storing in the OBU at present, because unmanned intervention when ETC system normally moves, if exist cart to use the OBU of dolly to evade the situation of toll, be difficult to be found, thereby bring greater loss can for the highway operator.
What existing ETC system relied on that the electromagnetic induction coil of burying underground judges vehicle on average passes through speed, and when vehicle is blocked, if vehicle is not pressed onto the electromagnetic induction coil that surpasses more than 2, just can't calculate the speed of a motor vehicle, more can't calculate vehicle in the speed of a motor vehicle in efficient communication zone, when complaining, can't know definite reason because be blocked running into the user.Use electromagnetic induction coil also to be difficult to the vehicle of following the tracks of the reversing or turning to other track, thus the vehicle Transaction Success rate that can't add up the ETC track.
Because there is individual difference, the OBU that has is too sensitive, thereby just can finish transaction when the distance railing is far, is easy to disturb because single unit vehicle produces with car, but the accurate position in the time of in existing ETC system, can't knowing the vehicle transaction, thereby be difficult to system is carried out adjustment.
Exist in the track now and buried a plurality of electromagnetic induction coils underground, the track is divided into the ETC system of a plurality of communication zones, but do not possess the condition of burying electromagnetic induction coil underground in some highway section, bury coil underground in other highway section and need destroy the road surface, can't adjust the position after burying underground, need cutting again when pavement construction, maintenance workload is big, and is difficult to accurately determine particular location and the travel direction of each car.
(3) utility model content
The utility model is in order to remedy the deficiencies in the prior art, but provide a kind of avoid because of disturb with car cause misplacing row do not deduct fees vehicle, guarantee vehicle pass-through speed, the accurate position of vehicle in the time of can identifying vehicle vehicle and effective communication, prevent vehicle change OBU evade the toll calculating vehicle track instantaneous velocity and vehicle block up degree, improve the long comunication area electronic charging system without parking of ETC track vehicle Transaction Success rate, use laser radar convenient for installation and maintenance.
The utility model is achieved by the following technical solution:
A kind of long comunication area electronic charging system without parking that uses laser radar, comprise track master controller, car plate recognition unit, antenna, electric railing, expense volume display, bar coil and track video camera fall, it alignment tiltedly below projection forms the antenna communication overlay area, both sides, antenna communication overlay area are provided with the vehicle insulation device, the track master controller is connected with the track video camera with car plate recognition unit, antenna, electric railing, expense volume display, the bar coil that falls respectively, and it is characterized in that: described track master controller is connected with laser radar.
Described antenna and laser radar are installed on the portal frame, expense volume display is installed on the electric railing front, the bar coil that falls is installed on the electric railing back, and the track video camera is installed on the electric railing rear, and car plate recognition unit focal length is aimed at far-end position, antenna communication overlay area.
The scanning result of described laser radar is used for differentiating the antenna communication overlay area to the vehicle fleet size between the electric railing, vehicle location, Vehicle Speed and travel direction.
The vehicle characteristics of described laser radar scanning cooperates the vehicle characteristics contrast in license plate recognition result and the board units information of vehicles frame, when many cars are arranged between the electric railing, differentiate whether the board units vehicle frame information of receiving is first car in the antenna communication overlay area.
The vehicle characteristics of described laser radar scanning carries out vehicle to be differentiated, and compares with vehicle characteristics such as vehicle commander, overall height in the board units information of vehicles frame, and whether the information of vehicles of differentiating record in the board units that vehicle installs is true.
Vehicle location, instantaneous velocity, track in the long comunication area electronic charging system without parking record process of exchange of the described use laser radar data such as degree of blocking up, these data can be used for using the tuning in the electronic charging system without parking track, the long comunication area of laser radar.
Described antenna and laser radar are positioned at 5.5 meters, center line top, track, the distance of portal frame and electric railing is 4 meters, the distance of antenna and laser radar and antenna communication overlay area far-end is 14 meters, the distance of antenna and antenna communication overlay area near-end is 2 meters, the distance of car plate recognition unit and antenna communication overlay area far-end is 5 meters, and the distance of antenna communication overlay area near-end and electric railing is 6 meters.
The beneficial effects of the utility model are:
(1) guarantees vehicle pass-through speed and Transaction Success rate.Laser radar can the identification aerial communication coverage area to the vehicle number between the electric railing, in the time can't judging whether OBU information of vehicles frame belongs to first car, can report to the police and disregard, thereby can be by increasing the mode extended antenna communication coverage area of antenna power and adjustment antenna tilt, when vehicle passes through fast, thereby exchange hour can be guaranteed.Long 12 meters in the antenna communication overlay area, the speed of a motor vehicle 40 kms/hour the time, the available transaction time, exchange took time much larger than vehicle more than 1 second, thereby can guarantee the Transaction Success rate when vehicle is current fast.
(2) reduce because disturb the probability that needs reversing with car.Laser radar can the tracking antenna communication coverage area to the position coordinates of all vehicles between the electric railing, data such as identification vehicle commander, overall height, vehicle, the speed of a motor vehicle, system matches license plate recognition result each car thus, when the car of 2 same sizes is waited for the ETC transaction, suppose that the whole discrimination of car plate is 96%, the OBU that then has only 0.16% probability can't distinguish a car headed by which OBU because of system needs reversing because disturbing with car.Because having guaranteed the speed of vehicle by the ETC track, when the speed of a motor vehicle was very fast, spacing widened, and added the guiding of sign label, and many cars wait for that simultaneously the probability of ETC transaction reduces, and needed the probability of reversing lower because disturbing with car.
(3) identification vehicle vehicle commander, overall height, vehicle stop to change the OBU fee evasion.Laser radar can be identified vehicle commander, overall height, the vehicle of vehicle, by with OBU in recorded information relatively, the cart small tenon that may occur in the time of can in time finding the OBU distribution, car owner transfer to dolly OBU under the prerequisite that does not trigger OBU tamper mechanism on the cart and the behavior of evading toll.Can on-the-spot tackle when finding that vehicle is not inconsistent, perhaps the data of gathering by the ETC track are checked afterwards.
(4) calculating vehicle is in instantaneous velocity, the vehicle Transaction Success rate in track.Laser radar can calculate vehicle at the instantaneous velocity of different coordinate positions, if the speed of a motor vehicle is much larger than ETC track speed limit, though the antenna communication overlay area lengthens, also might cause transaction unsuccessful because of the OBU sensitivity difference, the passage rate of system's registration of vehicle when Fail Transaction can be analyzed the reason of Fail Transaction thus.Simultaneously laser radar can be distinguished the vehicle direct of travel, can add up reversing back Transaction Success vehicle, vehicle that the ETC track is left in reversing, turn to artificial track to leave the vehicle in ETC track.By license plate recognition result and customer service system data, can further analyze the reason of Fail Transaction, as vehicle do not install OBU, OBU overtimely do not change, exceed the speed limit, because of unknown cause do not detect OBU, not plug-in card, Sorry, your ticket has not enough value etc.
(5) vehicle in the statistics ETC track degree of blocking up.Laser radar can scan vehicle number and vehicle commander's number in the about 30m of coverage zone, thereby can assess the vehicle degree of blocking up, for the laying in ETC track provides decision-making foundation.
(6) the accurate position of vehicle in the time of can identifying effective communication, thus system is optimized and adjustment, can find the too high OBU that produces in other track easily with the car interference of sensitivity simultaneously, in time feed back to customer service system.
(7) do not need to cut a plurality of ground induction coils, even can accomplish not cut fully ground induction coil.Laser radar can accurately be located the coordinate position of each vehicle, is better than ground induction coil, need not increase other facility and can detect vehicle and be inserted into the ETC track from adjacent lane, and perhaps vehicle forwards adjacent lane to from the ETC track.And the cutting of ground induction coil can destroy the road surface, needs cutting again when safeguarding on the road surface, particularly is arranged on the website on the viaduct in the toll plaza, because the reinforcing bar laying is intensive under the road surface, ground induction coil is easy to be interfered.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing 1 is floor plan synoptic diagram of the present utility model;
Accompanying drawing 2～accompanying drawing 4 is fundamental diagram of the present utility model;
Among the figure, 1 track master controller, 2 antenna communication overlay areas, 3 car plate recognition units, 4 antennas, 5 electric railings, 6 take the volume display, the 7 bar coils that fall, 8 track video cameras, 9 laser radars, 10 portal frames, 11 vehicle insulation devices.
(5) embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.
Embodiment 1:
This embodiment comprises track master controller 1, car plate recognition unit 3, antenna 4, electric railing 5, expense volume display 6, bar coil 7 and track video camera 8 fall, antenna 4 forms antenna communication overlay area 2 to the projection of oblique below, 2 both sides, antenna communication overlay area are provided with vehicle insulation device 11, track master controller 1 is connected with track video camera 8 with car plate recognition unit 3, antenna 4, electric railing 5, expense volume display 6, the bar coil 7 that falls respectively, and track master controller 1 is connected with laser radar 9.Antenna 4 and laser radar 9 are installed on the portal frame 10, expense volume display 6 is installed on electric railing 5 fronts, the bar coil 7 that falls is installed on electric railing 5 back, and track video camera 8 is installed on electric railing 5 rears, and car plate recognition unit 3 focal lengths are aimed at 2 far-end positions, antenna communication overlay area.The scanning result of laser radar 9 is used for differentiating antenna communication overlay area 2 to vehicle fleet size, vehicle location, Vehicle Speed and travel direction between the electric railing 5.The vehicle characteristics of laser radar 9 scannings cooperates the vehicle characteristics contrast in license plate recognition result and the board units information of vehicles frame, when between the electric railing 5 many cars being arranged, differentiate whether the board units vehicle frame information of receiving is first car in antenna communication overlay area 2.The vehicle characteristics of laser radar 9 scanning carries out vehicle to be differentiated, and compares with vehicle characteristics such as vehicle commander, overall height in the board units information of vehicles frame, and whether the information of vehicles of differentiating record in the board units that vehicle installs is true.Use the long comunication area electronic charging system without parking of laser radar to record vehicle location, instantaneous velocity, track in the process of exchange data such as degree of blocking up, these data can be used for using the tuning in the electronic charging system without parking track, the long comunication area of laser radar.
Adopt a kind of long comunication area electronic charging system without parking that uses laser radar of the present utility model, antenna 4 and laser radar 9 are installed on the portal frame 10, be positioned at about 5.5 meters of center line top, track, about 4 meters of the distance of portal frame 10 and electric railing 5, its position arranges the equipment performance of main consideration antenna 4, guarantee that antenna communication overlay area 2 is in correct position, next considers the scanning coverage of laser radar 9, in Fig. 1, antenna 4 and laser radar 9 are about 14 meters with the distance of antenna communication overlay area 2 far-ends, antenna 4 is about 2 meters with the distance of antenna communication overlay area 2 near-ends, if the equipment performance of selecting is relatively poor, also antenna 4 and laser radar 9 can be installed on the different portal frame 10; Long 12 meters approximately of antenna communication overlay area 2 length of antenna 4 on the track, car plate recognition unit 3 is about 5 meters with the distance of antenna communication overlay area 2 far-ends, the mode that car plate recognition unit 3 adopts video to trigger is carried out vehicle license identification, focal length is aimed near the position 2 far-ends of antenna communication overlay area, look speed of a motor vehicle difference, enter 2 backs, antenna communication overlay area at vehicle and can finish vehicle license identification for 1～3.5 meter; The distance of antenna communication overlay area 2 near-ends and electric railing 5 is about 6 meters, reserving the main consideration of distance electric railing 5 lifts and driver's reaction needed regular hour, this distance can allow not need deceleration can pass through the ETC track fast at the vehicle of antenna communication overlay area 2 arm's length transactions, while does not successfully open by mistake the vehicle before the electric railing 5 for concluding the business, from then on distance is poured out and turned to the track on next door can not expend the long period again; Before expense volume display 6 is installed in electric railing 5, show information such as remaining sum in access station, the consumption amount of money, the card to the driver during arm's length transaction, Sorry, your ticket has not enough value in electronic tag, card are not installed because of vehicle, not during reason Fail Transaction such as plug-in card, driver's suggestion that will show the Fail Transaction reason on the expense volume display 6 and give, take simultaneously on the volume display 6 and yellowly to dodge warning and can start, the prompting driver checks; 2 both sides, antenna communication overlay area are provided with vehicle insulation device 11, guided vehicle keeps keeping straight on after entering the ETC track, vehicle that can't arm's length transaction can change adjacent MTC track easily over to, unless but just the reversing of the vehicle in adjacent MTC track can change the ETC track over to; After the bar coil 7 that falls is installed in electric railing 5, be used for vehicle by after the bar that falls fast, prevent that follow-up vehicle from making a breakthrough with car; Track video camera 8 is positioned at electric railing 5 rears, can see the state that rises and falls of electric railing 5 and the vehicle that electric railing 5 arrives between the antenna communication overlay area 2 clearly, and the railing that is mainly used in monitoring in the track lifts and the vehicle pass-through situation.
The principle of work of the long comunication area electronic charging system without parking of above-mentioned use laser radar such as Fig. 2～shown in Figure 4, be specially:
(1) as shown in Figure 2, laser radar 9 continuous sweep E are to the zone between the F, and at no car state, antenna 4 is in unactivated state.
(2) as shown in Figure 3, after vehicle sails the ETC track into, laser radar 9 at E to the sector scanning between the F to vehicle, system activates antenna 4, antenna 4 communicates with OBU after searching the OBU that vehicle loads.
(3) car plate recognition unit 3 continues detector lens institute to the interior car plate in zone, laser radar 9 is followed the tracks of the vehicle that enters in the scanning area, identification vehicle commander, overall height, vehicle, the speed of a motor vehicle, according to headstock arrive time of car plate recognition unit 3 focal positions and license plate recognition result send to the time just license plate recognition result match on the vehicle of tracking.
(4) if having only 1 incomplete transaction vehicle in laser radar 9 scanning areas, system finishes transaction according to the ETC transaction flow, vehicle is let pass, and the bar that after the vehicle forward leaves bar coil 7, falls, antenna 4 is got back to original state.System also can be configured to record in car plate recognition unit 3 identification car plates and OBU and is not inconsistent, and perhaps record is not tackled when being inconsistent in vehicle commander, overall height, vehicle and the OBU.
(5) if 2 or more incomplete transaction vehicles are arranged in laser radar 9 scanning areas, as shown in Figure 4, car plate, vehicle commander, overall height, model data in the OBU information of vehicles frame that the car plate, vehicle commander, overall height, vehicle and the antenna 4 that recognize are received by system compare, preferential coupling car plate, if the data of OBU information of vehicles frame and first car are complementary, then only handle the ID number identical frame information of OBU therewith, wait for this OBU Transaction Success or trace into vehicle and produce the frame information of handling other OBU behind the ETC track again.When no OBU information of vehicles frame and first car were complementary, if remaining all vehicles all find the OBU of coupling, the OBU that then is considered as first car was the remaining OBU that is not mated.
(6) if first car crosses antenna communication overlay area 2 near-ends, antenna 4 does not also search OBU, then reports to the police and points out " no electronic tag please change artificial track ".
(7) if if 2 or more incomplete transaction vehicles are arranged in the laser radar 9 scanning antenna communication coverage area, in the time can't judging which OBU belongs to first car according to the method for (5) bar, system alarm and prompting " are disturbed with car, please be moveed backward or change artificial track ".
Embodiment 2:
In this embodiment, electric railing 5 among Fig. 1, expense volume display 6, the bar coil 7 that falls, track video camera 8 move to direction to the car relative to " embodiment 1 ", antenna communication overlay area 2 near-ends are concordant substantially with electric railing 5, distance is near 0 or be negative between antenna communication overlay area 2 near-ends and the electric railing 5, and other is identical with " embodiment 1 ".
Embodiment 3:
In this embodiment, electric railing 5 among Fig. 1, expense volume display 6, the bar coil 7 that falls, track video camera 8 move to the vehicle direct of travel relative to " embodiment 1 ", the electric railing position class that lay in electric railing 5 and manual toll collection track or automatic card track seemingly, distance increase between antenna communication overlay area 2 near-ends and the electric railing 5.In this embodiment, first car can perhaps be handled by the fee-collector in the automatic card dispenser card taking, and after finishing card taking, charge or being left the operation in track by artificial guiding, system can handle follow-up vehicle.
Claims (5)
1. long comunication area electronic charging system without parking that uses laser radar, comprise track master controller (1), car plate recognition unit (3), antenna (4), electric railing (5), take volume display (6), bar coil (7) and track video camera (8) fall, antenna (4) forms antenna communication overlay area (2) to the projection of oblique below, both sides, antenna communication overlay area (2) are provided with vehicle insulation device (11), track master controller (1) respectively with car plate recognition unit (3), antenna (4), electric railing (5), take volume display (6), the bar coil (7) that falls is connected with track video camera (8), and it is characterized in that: described track master controller (1) is connected with laser radar (9).
2. a kind of long comunication area electronic charging system without parking that uses laser radar according to claim 1, it is characterized in that: described antenna (4) and laser radar (9) are installed on the portal frame (10), expense volume display (6) is installed on electric railing (5) front, the bar coil (7) that falls is installed on electric railing (5) back, track video camera (8) is installed on electric railing (5) rear, and car plate recognition unit (3) focal length is aimed at far-end position, antenna communication overlay area (2).
3. a kind of long comunication area electronic charging system without parking that uses laser radar according to claim 1 is characterized in that: the scanning result of described laser radar (9) is used for differentiating antenna communication overlay area (2) to vehicle fleet size, vehicle location, Vehicle Speed and travel direction between the electric railing (5).
4. a kind of long comunication area electronic charging system without parking that uses laser radar according to claim 1, it is characterized in that: the vehicle characteristics of described laser radar (9) scanning cooperates the vehicle characteristics contrast in license plate recognition result and the board units information of vehicles frame, when between the electric railing (5) many cars being arranged, differentiate whether the board units vehicle frame information of receiving is first car in antenna communication overlay area (2).
5. a kind of long comunication area electronic charging system without parking that uses laser radar according to claim 4, it is characterized in that: the vehicle characteristics of described laser radar (9) scanning carries out vehicle and differentiates, and compare with vehicle commander, overall height vehicular characteristics data in the board units information of vehicles frame, whether the information of vehicles of differentiating record in the board units that vehicle installs is true.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220537604 CN203054934U (en) | 2012-10-20 | 2012-10-20 | Long communication area electronic toll collection system using laser radar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220537604 CN203054934U (en) | 2012-10-20 | 2012-10-20 | Long communication area electronic toll collection system using laser radar |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021035A (en) * | 2012-10-20 | 2013-04-03 | 山东易构软件技术有限公司 | Electronic toll collection system using laser radar in long communication area |
| CN105405176A (en) * | 2015-12-29 | 2016-03-16 | 深圳市金溢科技股份有限公司 | Electronic toll collection system and processing method thereof, controller, and road side unit |
| CN110675513A (en) * | 2019-09-27 | 2020-01-10 | 深圳市镭神智能系统有限公司 | Vehicle release management system, vehicle release management method, and vehicle charging system |
| CN110675516A (en) * | 2019-10-14 | 2020-01-10 | 深圳市镭神智能系统有限公司 | Vehicle management device, vehicle management server, and vehicle toll collection system |
| CN110689629A (en) * | 2019-10-14 | 2020-01-14 | 深圳市镭神智能系统有限公司 | Vehicle management device, vehicle management server, and vehicle toll collection system |
-
2012
- 2012-10-20 CN CN 201220537604 patent/CN203054934U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021035A (en) * | 2012-10-20 | 2013-04-03 | 山东易构软件技术有限公司 | Electronic toll collection system using laser radar in long communication area |
| CN105405176A (en) * | 2015-12-29 | 2016-03-16 | 深圳市金溢科技股份有限公司 | Electronic toll collection system and processing method thereof, controller, and road side unit |
| CN110675513A (en) * | 2019-09-27 | 2020-01-10 | 深圳市镭神智能系统有限公司 | Vehicle release management system, vehicle release management method, and vehicle charging system |
| CN110675516A (en) * | 2019-10-14 | 2020-01-10 | 深圳市镭神智能系统有限公司 | Vehicle management device, vehicle management server, and vehicle toll collection system |
| CN110689629A (en) * | 2019-10-14 | 2020-01-14 | 深圳市镭神智能系统有限公司 | Vehicle management device, vehicle management server, and vehicle toll collection system |
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Owner name: SHANDONG EAGLE SOFTWARE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANDONG EAGLE SOFTWARE TECHNOLOGY LTD. |
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Address after: 250101 Shandong city of Ji'nan province high tech Zone Shun Road No. 2000 Shun Tai Plaza No. 8 East 24 floor elevator Patentee after: SHANDONG EAGLE SOFTWARE TECHNOLOGY Co.,Ltd. Address before: 250101 Shandong city of Ji'nan province high tech Zone Shun Road No. 2000 Shun Tai Plaza No. 8 East 24 floor elevator Patentee before: Shandong Eagle Software Technology Co.,Ltd. |
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