CN111688689A - Vehicle fleet management control system and vehicle fleet management control method - Google Patents
Vehicle fleet management control system and vehicle fleet management control method Download PDFInfo
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- CN111688689A CN111688689A CN202010506637.3A CN202010506637A CN111688689A CN 111688689 A CN111688689 A CN 111688689A CN 202010506637 A CN202010506637 A CN 202010506637A CN 111688689 A CN111688689 A CN 111688689A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/14—Adaptive cruise control
- B60W30/16—Control of distance between vehicles, e.g. keeping a distance to preceding vehicle
- B60W30/165—Automatically following the path of a preceding lead vehicle, e.g. "electronic tow-bar"
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/024—Guidance services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
Abstract
The embodiment of the invention relates to the field of cargo transportation, and discloses a fleet management control system and a fleet management control method. In the invention, the fleet management control system is suitable for any one vehicle in a plurality of vehicles in a fleet, and comprises: a wireless communication device for enabling the vehicles in the fleet to communicate; a detection device for detecting a third-party vehicle; and the cooperative adaptive cruise control device is electrically connected with the wireless communication device and the detection device, judges whether the third-party vehicle has the tendency of intervening in the motorcade or not, and shortens the vehicle distance of the vehicles in the motorcade by using the wireless communication device after judging that the third-party vehicle has the tendency of intervening in the motorcade. The motorcade management control system and the motorcade management control method provided by the invention can save driving time and ensure driving safety.
Description
Technical Field
The embodiment of the invention relates to the field of cargo transportation, in particular to a fleet management control system and a fleet management control method.
Background
In the process of cargo transportation, the existing problems of manpower shortage and fuel oil and operation exist for many years, and in the prior art, the train running technology is utilized, so that the freight efficiency can be improved, and the fuel oil cost can be saved.
The inventor finds that at least the following problems exist in the prior art: under the condition that the vehicles are in a queue for running, if a third-party vehicle is forcibly added, the formed efficiency rule can be damaged, so that the vehicles in the queue cannot run normally, the running time is delayed, and meanwhile, potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a fleet management control system and a fleet management control method, which can save driving time and ensure driving safety.
In order to solve the above technical problem, an embodiment of the present invention provides a fleet management control system, adapted to any one of a plurality of vehicles in a fleet, including: a wireless communication device for enabling the vehicles in the fleet to communicate; a detection device for detecting a third-party vehicle; and the cooperative adaptive cruise control device is electrically connected with the wireless communication device and the detection device, judges whether the third-party vehicle has the tendency of intervening in the motorcade or not, and shortens the vehicle distance of the vehicles in the motorcade by using the wireless communication device after judging that the third-party vehicle has the tendency of intervening in the motorcade.
The embodiment of the invention also provides a fleet management control method, which comprises the following steps: a plurality of vehicles communicate with each other to enable the vehicles to form a fleet; detecting a third-party vehicle and judging whether the third-party vehicle has a tendency of intervening in the motorcade; and after determining that the third party vehicle has the tendency to intervene in the fleet of vehicles, shortening a headway of the vehicles in the fleet of vehicles.
Compared with the prior art, the embodiment of the invention judges whether the third-party vehicle has the tendency of getting involved in the motorcade or not through the cooperative adaptive cruise control device, and after the third-party vehicle is judged to have the tendency of getting involved in the motorcade, the cooperative adaptive cruise control device shortens the vehicle distance of the vehicle in the motorcade by utilizing the wireless communication device, thereby effectively preventing the third-party vehicle from getting involved, improving the smoothness of the motorcade in the advancing process, saving the driving time and ensuring the driving safety.
In addition, the detection device comprises an image detection device, the cooperative adaptive cruise control device utilizes the image detection device to identify whether the third-party vehicle is an emergency vehicle, and when the third-party vehicle is the emergency vehicle and tends to intervene in the motorcade, the distance between the vehicles in the motorcade is increased.
In addition, the cooperative adaptive cruise control device judges whether the fleet is between the third-party vehicle and an interchange exit by using the wireless communication device, and increases the vehicle distance of the vehicles in the fleet when the fleet is between the third-party vehicle and the interchange exit and the third-party vehicle has a tendency to intervene in the fleet.
In addition, the fleet management control system further comprises: and the warning device is electrically connected with the cooperative adaptive cruise control device, and executes warning action when the cooperative adaptive cruise control device judges that the third-party vehicle still has the tendency of intervening in the motorcade after the distance between the vehicles in the motorcade is shortened.
In addition, the cooperative adaptive cruise control increases the separation of the vehicles in the fleet when it is determined that the third party vehicle has the tendency to intervene in the fleet after the alert device performs the alert action.
In addition, after determining whether the third-party vehicle has a tendency to intervene in the fleet, the method further comprises:
identifying whether the third party vehicle is an emergency vehicle, increasing the separation of the vehicles in the fleet when a third party vehicle is the emergency vehicle and is prone to intervene in the fleet.
In addition, after determining whether the third-party vehicle has a tendency to intervene in the fleet, the method further comprises: and judging whether the motorcade is between the third-party vehicle and an interchange exit, and increasing the distance between the vehicles in the motorcade when the motorcade is between the third-party vehicle and the interchange exit and the third-party vehicle has a tendency to intervene in the motorcade.
Additionally, after the shortening the vehicle distance of the vehicle in the fleet, the method further comprises: performing an alert action when it is determined that the third party vehicle has the propensity to intervene in the fleet of vehicles.
In addition, after the executing the alert action, the method further includes: increasing the separation of the vehicles in the fleet when it is determined that the third party vehicle still has the propensity to intervene in the fleet.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
FIG. 1 is a schematic illustration of a third party vehicle provided by an embodiment of the present invention having a tendency to intervene in a fleet of vehicles;
FIG. 2 is a schematic diagram of a vehicle in a fleet of vehicles after being shortened according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a fleet management control system according to an embodiment of the present invention;
fig. 4 is a flowchart of a fleet management control method according to an embodiment of the present invention.
Description of the drawings:
100: vehicle fleet
110: vehicle with a steering wheel
130: third party vehicle
190: double white line
310: wireless communication device
320: detecting device
321: image detection device
322: radar sensing device
323: speed sensing device
330: cooperative self-adaptive cruise control device
340: warning device
400: fleet management control method
S401 to S408: each step in the fleet management control method
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
Fig. 1 and fig. 2 are schematic diagrams of a fleet 100 provided in accordance with an embodiment of the present invention. As shown in FIG. 1, a fleet 100 includes a plurality of vehicles 110, where each vehicle 110 may be equipped with an Internet of vehicles based fleet management control system 300 of the present invention (shown in FIG. 3). During the driving process, the fleet management control system 300 is utilized to communicate with each other among the vehicles 110, and the vehicles 110 can turn on the synchronization mark (e.g., flashing LED mark, infrared laser …, etc.). The fleet management control system 300 determines whether the third party vehicle 130 is inclined to intervene in the fleet 100; if so, as shown in fig. 2, the fleet management control system 300 shortens the inter-vehicle distance of the vehicles 110 in the fleet 100, thereby effectively preventing the intervention of the third party vehicle 130.
For further explanation of the vehicle fleet management control system 300, please refer to fig. 1 to 3, and fig. 3 is a block diagram of a vehicle fleet management control system 300 based on internet of vehicles according to an embodiment of the present invention. As shown in fig. 3, the fleet management Control system includes a wireless communication device 310, a detection device 320, a Cooperative-Adaptive Cruise Control (Adaptive Cruise Control)330, and an alert device 340. In terms of architecture, the cooperative adaptive cruise control device 330 is electrically connected to the wireless communication device 310, the detection device 320 and the warning device 340.
For example, the wireless communication device 310 may include a wireless transceiver based on internet of vehicles, a mobile network communication device, a satellite positioning receiver and/or other wireless transmission module, the detection device 320 may include an image detection device 321 (also referred to as an image sensing device), a radar sensing device 322, a speed sensing device 323 and/or other sensing devices, the cooperative adaptive cruise control device 330 may be a driving computer, and the warning device 340 may include a lamp, a speaker and/or other warning devices.
During the traveling process, the wireless communication device 310 enables the plurality of vehicles 110 in the fleet 100 to communicate, the detection device 320 detects the third party vehicle 130, and the cooperative adaptive cruise control device 330 determines whether the third party vehicle 130 tends to intervene in the fleet 100. For example, the cooperative adaptive cruise control device 330 determines whether the third-party vehicle 130 in the image flickers according to the image of the third-party vehicle 130 acquired by the image detection device 321, and if so, determines that the third-party vehicle 130 tends to intervene in the fleet 100. Alternatively, the cooperative adaptive cruise control device 330 determines that the third-party vehicle 130 is inclined to intervene in the fleet 100 when the distance between the third-party vehicle 130 and the fleet 100 is less than the preset safe distance by using the radar sensing device 322.
In the embodiment of the invention, the cooperative adaptive cruise control device 330 utilizes the image detection device 321 to identify whether the third party vehicle 130 is an emergency vehicle (e.g., police car, ambulance …, etc.). For example, if the image of the third-party vehicle 130 matches the preset emergency vehicle image, the cooperative adaptive cruise control device 330 determines that the third-party vehicle 130 is an emergency vehicle. When the third party vehicle 130 is an emergency vehicle and is prone to intervene in the fleet 100, the cooperative adaptive cruise control 330 increases the separation of the plurality of vehicles 110 in the fleet 100.
In another embodiment of the present invention, the cooperative adaptive cruise control 330 utilizes the wireless communication device 310 to determine whether the fleet 100 is between the third party vehicle 130 and the exit of the interchange. For example, the mobile network communication device may obtain a network map, the satellite positioning receiver may obtain the position of the fleet 100, and the cooperative adaptive cruise control device 330 determines whether the fleet 100 blocks the third-party vehicle 130 from leaving the exit of the interchange according to the position of the fleet 100. When the fleet is between the third-party vehicle and the exit of the interchange, and the third-party vehicle tends to intervene in the fleet, i.e. the fleet 100 blocks the third-party vehicle 130 to the exit of the interchange, the cooperative adaptive cruise control device 330 increases the distance between the plurality of vehicles 110 in the fleet 100, so that the third-party vehicle 130 leaves the interchange through the fleet 100.
Specifically, if the third-party vehicle 130 is an emergency vehicle, or when the fleet 100 blocks the third-party vehicle 130 to the traffic lane exit, the third-party vehicle 130 needs to intervene, the cooperative adaptive cruise control device 330 estimates the intervention driving point of the third-party vehicle 130 by using the detection device 320, and performs the distance adjustment of the fleet 100, so that the intervention driving point has a proper distance, and the nearest vehicle 110 senses the driving state of the third-party vehicle 130, and reports the fleet 100 at any time; for example, the speed sensing device 323 senses the speed of the third party and provides the third party with the vehicle to the fleet 100, and notifies the fleet 100 of coordinated acceleration or deceleration if there is a change in speed. After the third party vehicle 130 leaves the fleet 100, the cooperative adaptive cruise control 330 controls the fleet 100 to readjust to the proper separation.
After determining that the third-party vehicle 130 is inclined to intervene in the fleet 100, if the third-party vehicle 130 is not an emergency vehicle or when the fleet 100 does not block the third-party vehicle 130 to the traffic exit, the cooperative adaptive cruise control device 330 shortens the distance between the plurality of vehicles 110 in the fleet 100 by using the wireless communication device 310. For example, the front vehicle 110 in the fleet 100 slows down and the rear vehicle 110 accelerates to shorten the vehicle distance.
In practical applications, the third party vehicle 130 tends to intervene in the fleet 100, and the cooperative adaptive cruise control device 330 may further utilize the image detection device 321 to identify whether there is a white line 190 (as shown in fig. 1) between the third party vehicle 130 and the fleet 100; if so, the cooperative adaptive cruise control device 330 utilizes the wireless communication device 310 to shorten the distance between the vehicles 110 in the fleet 100 to ensure driving safety.
After the distances between the plurality of vehicles 110 in the fleet 100 are shortened, the warning device 340 performs a warning action when the cooperative adaptive cruise control device 330 determines that the third party vehicle 130 is still inclined to intervene in the fleet 100. For example, the lamp emits a flashing warning light or red light warning, and the speaker emits a warning sound.
In practical applications, if the third-party vehicle 130 still has a tendency to intervene in the fleet 100, the cooperative adaptive cruise control device 330 may further utilize the image detection device 321 to identify whether the third-party vehicle 130 is smaller than the vehicle 110; if so, the warning device 340 executes a warning action because there is a potential safety hazard when the small vehicle intervenes between the large vehicles, in other words, the large vehicles will warn to refuse the intervention of the third party vehicle 130.
After the alert device 340 performs the alert action, the cooperative adaptive cruise control device 330 increases the distance between the plurality of vehicles 110 in the fleet 100 when it is determined that the third party vehicle 130 is still prone to intervene in the fleet 100. Specifically, if the third-party vehicle 130 is forced to intervene, the cooperative adaptive cruise control device 330 estimates the intervening driving point of the third-party vehicle 130 by using the detection device 320, and performs the interval adjustment of the fleet 100, so that the intervening driving point has an appropriate distance, and the nearest vehicle 110 senses the driving state of the third-party vehicle 130, and reports the fleet 100 at any time. After the third party vehicle 130 leaves the fleet 100, the cooperative adaptive cruise control 330 controls the fleet 100 to readjust to the proper separation.
To further illustrate the operation of the fleet management control system 100, please refer to fig. 4, and fig. 4 is a flowchart of a fleet management control method 400 based on internet of vehicles according to an embodiment of the present invention. As shown in fig. 4, the fleet management control method 400 includes steps S401 to S408 (it should be understood that the steps mentioned in this embodiment, except for the specific sequence, can be performed simultaneously or partially simultaneously, with the sequence being adjusted according to actual needs).
In step S401, a plurality of vehicles 110 communicate with each other, so that the plurality of vehicles 110 form the vehicle fleet 100. During travel, the vehicle 110 may turn on a synchronization mark (e.g., flashing LED mark, infrared laser …, etc.).
Next, in step S402, it is determined whether there is a possibility of intervention into the vehicle fleet; specifically, it is determined whether the third-party vehicle 130 tends to intervene in the vehicle fleet 100. For example, in step S402, it is determined whether the third party vehicle 130 in the image flickers according to the image of the third party vehicle 130 acquired by the image detection device 321, and if so, it is determined that the third party vehicle 130 tends to intervene in the fleet 100. Alternatively, in step S402, when the distance between the third-party vehicle 130 and the fleet 100 is less than the preset safety distance by using the radar sensing device 322, it is determined that the third-party vehicle 130 tends to intervene in the fleet 100. On the other hand, if the third-party vehicle 130 does not have a tendency to intervene in the fleet 100, the fleet 100 continues to advance steadily in step S406.
If the third-party vehicle 130 is not likely to intervene in the vehicle group 100, it is determined whether the situation is a special situation in step S403. In step S403, the image detection device 321 is utilized to identify whether the third-party vehicle 130 is an emergency vehicle (e.g., police car, ambulance …, etc.). For example, if the image of the third-party vehicle 130 matches the preset emergency vehicle image, it is determined that the third-party vehicle 130 is an emergency vehicle, which is a special case. In another embodiment of the present invention, the wireless communication device 310 is utilized to determine whether the fleet 100 is between the third-party vehicle 130 and the exit of the interchange. For example, the mobile network communication device may obtain a network map, the satellite positioning receiver may obtain the position of the fleet 100, and in step S403, determine whether the fleet 100 blocks the third-party vehicle 130 from leaving the exit of the interchange according to the position of the fleet 100; if so, this is particularly the case.
If it is a special case (i.e., the third party vehicle 130 is an emergency vehicle), the separation of the vehicles 110 in the fleet 100 is increased to give the third party vehicle 130 a gift to intervene. Specifically, in step 407, the detection device 320 is used to estimate the third-party vehicle 130 to intervene in the driving point to adjust the distance between the fleet 100, so that the intervening driving point has an appropriate distance, and the nearest vehicle 110 senses the driving state of the third-party vehicle 130 to report the fleet 100 at any time; for example, the speed sensing device 323 senses the speed of the third party and provides the third party with the vehicle to the fleet 100, and notifies the fleet 100 of coordinated acceleration or deceleration if there is a change in speed. After the third party vehicle 130 leaves the fleet 100, the fleet 100 is controlled to readjust the proper separation in step 407.
Otherwise, if it is not the case (i.e., the third party vehicle 130 is not an emergency vehicle), in step 404, the distance between the vehicles 110 in the fleet 100 is shortened, and it is determined whether the third party vehicle 130 cancels the intervention. If the third party vehicle 130 is taken off intervention, i.e., the third party vehicle 130 is not inclined to intervene in the fleet 100, the fleet 100 continues to steadily advance and readjust to the proper separation in step 408.
On the contrary, if the third party vehicle 130 does not cancel the intervention, i.e. the third party vehicle 130 still has a tendency to intervene in the fleet 100, in step 405, an alert is performed and it is determined whether the third party vehicle 130 cancels the intervention. For example, the light of the vehicle 110 emits a flashing warning light or red light warning, and the speaker of the vehicle 110 emits a warning sound. If the third party vehicle 130 is taken off intervention, i.e., the third party vehicle 130 is not inclined to intervene in the fleet 100, the fleet 100 continues to steadily advance and readjust to the proper separation in step 408.
Conversely, if the third party vehicle 130 is not taken out of intervention, i.e., the third party vehicle 130 still has a tendency to intervene in the fleet 100, the separation of the vehicles 110 in the fleet 100 is increased in step 407. Specifically, in step 407, the detection device 320 is used to estimate the third-party vehicle 130 to intervene in the driving point to adjust the distance between the fleet 100, so that the intervening driving point has an appropriate distance, and the nearest vehicle 110 senses the driving state of the third-party vehicle 130 to report the fleet 100 at any time; for example, the speed sensing device 323 senses the speed of the third party and provides the third party with the vehicle to the fleet 100, and notifies the fleet 100 of coordinated acceleration or deceleration if there is a change in speed. After the third party vehicle 130 leaves the fleet 100, the fleet 100 is controlled to readjust the proper separation in step 407.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific embodiments for practicing the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. A fleet management control system adapted for use with any one of a plurality of vehicles in a fleet, comprising:
a wireless communication device for enabling the vehicles in the fleet to communicate;
a detection device for detecting a third-party vehicle; and
the cooperative adaptive cruise control device is electrically connected with the wireless communication device and the detection device, judges whether the third-party vehicle tends to intervene in the motorcade or not, and shortens the vehicle distance of the vehicles in the motorcade by using the wireless communication device after judging that the third-party vehicle tends to intervene in the motorcade.
2. The system of claim 1, wherein the detection device comprises an image detection device, the cooperative adaptive cruise control device uses the image detection device to identify whether the third party vehicle is an emergency vehicle, and when the third party vehicle is the emergency vehicle and has a tendency to intervene in the fleet, the distance between the vehicles in the fleet is increased.
3. The fleet management control system of claim 1, wherein said cooperative adaptive cruise control determines whether said fleet is between said third party vehicle and an exit of an interchange using said wireless communication device, said cooperative adaptive cruise control increasing said separation distance of said vehicles in said fleet when said fleet is between said third party vehicle and an exit of an interchange and said third party vehicle has a tendency to intervene in said fleet.
4. The fleet management control system of claim 1, further comprising:
and the warning device is electrically connected with the cooperative adaptive cruise control device, and executes warning action when the cooperative adaptive cruise control device judges that the third-party vehicle still has the tendency of intervening in the motorcade after the distance between the vehicles in the motorcade is shortened.
5. The fleet management control system of claim 4, wherein said coordinated adaptive cruise control increases said separation of said vehicles in said fleet when said third party vehicle is determined to be still prone to engage said fleet after said alerting device performs said alerting action.
6. A fleet management control method, comprising:
a plurality of vehicles communicate with each other to enable the vehicles to form a fleet;
detecting a third-party vehicle and judging whether the third-party vehicle has a tendency of intervening in the motorcade; and
after determining that the third party vehicle has the tendency to intervene in the fleet of vehicles, shortening a headway of the vehicles in the fleet of vehicles.
7. The fleet management control method of claim 6, wherein said determining whether said third party vehicle is predisposed to engage said fleet of vehicles further comprises:
identifying whether the third party vehicle is an emergency vehicle, increasing the separation of the vehicles in the fleet when a third party vehicle is the emergency vehicle and is prone to intervene in the fleet.
8. The fleet management control method of claim 6, wherein said determining whether said third party vehicle is predisposed to engage said fleet of vehicles further comprises:
and judging whether the motorcade is between the third-party vehicle and an interchange exit, and increasing the distance between the vehicles in the motorcade when the motorcade is between the third-party vehicle and the interchange exit and the third-party vehicle has a tendency to intervene in the motorcade.
9. The fleet management control method of claim 6, wherein said reducing said distance between said vehicles in said fleet further comprises:
performing an alert action when it is determined that the third party vehicle has the propensity to intervene in the fleet of vehicles.
10. The fleet management control method of claim 9, wherein said performing an alert action further comprises:
increasing the separation of the vehicles in the fleet when it is determined that the third party vehicle still has the propensity to intervene in the fleet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010506637.3A CN111688689A (en) | 2020-06-05 | 2020-06-05 | Vehicle fleet management control system and vehicle fleet management control method |
| TW109122660A TWI753480B (en) | 2020-06-05 | 2020-07-03 | Fleet management control system and method based on car networking |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010506637.3A CN111688689A (en) | 2020-06-05 | 2020-06-05 | Vehicle fleet management control system and vehicle fleet management control method |
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| CN111688689A true CN111688689A (en) | 2020-09-22 |
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| CN202010506637.3A Pending CN111688689A (en) | 2020-06-05 | 2020-06-05 | Vehicle fleet management control system and vehicle fleet management control method |
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| TW (1) | TWI753480B (en) |
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| Publication number | Publication date |
|---|---|
| TWI753480B (en) | 2022-01-21 |
| TW202147267A (en) | 2021-12-16 |
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