CN111866711A - Vehicle abnormal movement management method and system based on base station and vehicle management system - Google Patents
Vehicle abnormal movement management method and system based on base station and vehicle management system Download PDFInfo
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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
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- 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]
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The scheme provides a base station-based vehicle abnormal movement management method and system and a vehicle management system, and the base station-based vehicle abnormal movement management method and system comprises the following steps: s1: acquiring base station signal information; s2: judging whether the vehicle is in a locking state or not, and judging whether the vehicle moves abnormally or not according to the base station signal information; s3: if the vehicle is in the locked state and the vehicle is abnormally moved, executing S4; s4: generating and sending a first control instruction; s5: positioning information of the vehicle is received based on the first control instruction. The method can continuously monitor the available base station signal information near the vehicle, and actively position and identify the abnormal vehicle position if abnormal movement occurs, fully considers the balance between the power consumption and the asset preservation problem, and provides important technical support for vehicle asset preservation.
Description
Technical Field
The invention belongs to the technical field of vehicle positioning, and relates to a method and a system for identifying whether a vehicle is abnormally moved and tracking and positioning the vehicle by utilizing base station information, and a vehicle management system.
Background
With the development of internet technology, shared bicycles which are popular in large and medium-sized cities across the country are almost visible everywhere, compared with public bicycles with piles, the shared bicycle without piles which can be used and parked at any time brings great convenience to users, but when the shared bicycle is unlocked and used by abnormally using App, behaviors of privately transporting the bicycle, privately hiding the bicycle, destroying the bicycle and the like are found, and huge loss of assets of the shared bicycle is caused.
The shared vehicle can be generally positioned by using satellite positioning technology, and the position of the vehicle is tracked. However, when the technology is used for positioning, the power consumption is high, the electric quantity of the vehicle is limited, and the vehicle cannot be normally opened, particularly when the vehicle is in a locked state. Therefore, how to track the vehicle in a locked state by reasonably utilizing satellite positioning is an important subject, and the implementation of the technical scheme is a problem that the monitoring is low in power consumption and can be performed for a long time.
Disclosure of Invention
In view of the above-mentioned defects of the prior art, the present invention aims to provide a base station-based vehicle abnormal movement management method, system and management system which can perform monitoring for a long time with low power consumption.
In order to achieve the above object, the present invention provides a base station-based vehicle abnormal movement management method, including:
S1: acquiring base station signal information;
s2: judging whether the vehicle is in a locking state or not, and judging whether the vehicle moves abnormally or not according to the base station signal information;
s3: if the vehicle is in the locked state and the vehicle is abnormally moved, executing S4;
s4: generating and sending a first control instruction;
s5: positioning information of the vehicle is received based on the first control instruction.
Preferably, the step of determining whether the vehicle is abnormally moved based on the base station signal information includes:
s21: sequencing the base station signal information of a single vehicle according to time, wherein the base station signal information comprises a base station number and base station signal strength information;
s22: and comparing the change times of the base station number in the first preset time sliding window with a time threshold, and judging whether the vehicle is in an abnormal moving state according to whether the change times exceed the time threshold.
Preferably, the S2 further includes:
s23: calculating fluctuation variance of the base station signal strength information in a plurality of continuous first preset time sliding windows;
s24: and judging whether the vehicle is in an abnormal moving state or not according to whether the change times exceed a time threshold value or not and whether the fluctuation variance is larger than a conventional fluctuation threshold value or not.
Preferably, the method further includes, after S5:
s6: sequencing the positioning information according to time, making a second preset time sliding window with a preset period as a period, performing median filtering on the positioning information in the second preset time sliding window, and removing abnormal values of abnormal drift in the positioning information; and calculating the earth surface distance between adjacent points according to the positioning information processed by the abnormal value, judging whether the vehicle generates displacement according to whether the earth surface distance is continuously greater than a distance threshold, if the vehicle does not generate displacement within a continuous preset time period, judging that the vehicle is in error identification abnormal movement, and closing the positioning of the vehicle at the moment.
Preferably, S4 further includes:
s31: acquiring a low-frequency positioning signal of a vehicle to be checked which is not identified to be in an abnormal moving state;
s32: and analyzing the low-frequency positioning signal, and identifying whether the vehicle to be inspected has an abnormally moving vehicle or not according to the vehicle position portrait information generated by the low-frequency positioning signal, if so, executing the step S4.
The present case also provides a vehicle abnormal movement management system based on base station, wherein, includes:
the base station detection module is used for acquiring base station signal information;
The judging module is connected with the base station detecting module and used for judging whether the vehicle is in a locking state or not and judging whether the vehicle moves abnormally or not according to the base station signal information;
the control module is connected with the judging module and used for generating and sending a first control instruction when the vehicle is in a locked state and the vehicle is abnormally moved;
and the positioning module is connected with the control module and used for acquiring the positioning information of the vehicle based on the first control instruction, and the control module is used for receiving the positioning information of the vehicle.
Preferably, the judging module includes:
the base station signal sequencing unit is used for sequencing the base station signal information of a single vehicle according to time, wherein the base station signal information comprises a base station number and base station signal strength information;
and the base station signal judging unit is connected with the base station signal sequencing unit and is used for comparing the change times of the base station numbers in the first preset time sliding window with a time threshold value and judging whether the vehicle is in an abnormal moving state or not according to whether the change times exceed the time threshold value or not.
Preferably, the judging module includes:
the fluctuation variance calculation unit is used for calculating the fluctuation variance of the base station signal strength information in a plurality of continuous first preset time sliding windows;
And the fluctuation variance judging unit is connected with the fluctuation variance calculating unit and is used for judging whether the vehicle is in an abnormal moving state or not according to whether the change times exceed a time threshold and whether the fluctuation variance is larger than a conventional fluctuation threshold.
Preferably, the base station-based vehicle abnormal movement management system further includes a positioning management module, connected to the positioning module, and configured to order the positioning information in time, formulate a second preset time sliding window with a preset period as a period, perform median filtering on the positioning information in the second preset time sliding window, and reject abnormal values of abnormal drift in the positioning information; and calculating the earth surface distance between adjacent points according to the positioning information processed by the abnormal value, judging whether the vehicle generates displacement according to whether the earth surface distance is continuously greater than a distance threshold, if the vehicle does not generate displacement within a continuous preset time period, judging that the vehicle is in error identification abnormal movement, and closing the positioning of the vehicle at the moment.
Preferably, the base station-based vehicle abnormal movement management system further comprises an auxiliary identification module connected to the positioning module, wherein the auxiliary identification module is used for acquiring a low-frequency positioning signal of a vehicle to be checked which is not identified to be in an abnormal movement state; and analyzing the low-frequency positioning signal, identifying whether the vehicles to be inspected have abnormal moving vehicles or not according to the vehicle position portrait information generated by the low-frequency positioning signal, and if so, generating and sending a first control command.
Preferably, the base station-based vehicle abnormal movement management system further includes an adjusting module, connected to the positioning management module, and configured to selectively and continuously obtain positioning information of the vehicle or adjust the positioning frequency of the vehicle in cycles according to whether the vehicle is displaced within a continuous preset time period.
The scheme also provides a vehicle management system which is provided with the base station-based vehicle abnormal moving management system.
Compared with the prior art, the implementation of the invention achieves the following obvious technical effects:
1. in the invention, a base station detection module continuously checks the base station signal information of the vehicle based on the continuous reading of the SIM card; and once the base station signal information of the vehicle in the locked state is identified to be greatly changed, the corresponding server of the vehicle pre-judges that the vehicle is in the abnormal moving state. The SIM card is low in power consumption, the base station detection module can be used for continuously monitoring available base station signal information near the vehicle, the balance between the power consumption and the asset preservation problem is fully considered in the method for actively positioning and identifying the position of the abnormal vehicle if abnormal movement exists, and important technical support is provided for the vehicle asset preservation.
2. By using the base station-based vehicle abnormal movement management system, once the change of the base station number and the change of the base station signal strength information exceed a certain threshold value in the locked state of the vehicle is identified, the server initiates a first control instruction for positioning to the vehicle, enables the vehicle to start a positioning module, starts continuous positioning, reports the positioning result to the server according to a preset threshold value period, and continuously monitors the position information of the alarming vehicle.
3. In the invention, if no displacement is found in the reported position within the continuous threshold value period range and the vehicle posture is not continuously and abnormally fallen down, the error recognition abnormal movement is judged, and the server sends an instruction for closing the positioning module to the vehicle, so that the power consumption of the vehicle can be reduced. When the track is found to have displacement at first and is not moved any more afterwards, the server sends a command of reducing the positioning frequency to the vehicle, and the positioning frequency of the vehicle is reduced so as to reduce power consumption, continuously monitor whether the vehicle has new position change or not and track the track of the abnormally moved vehicle.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic diagram of a preferred embodiment of a base station-based abnormal vehicle movement management method in embodiment 1 of the present invention.
Fig. 2 is a schematic diagram of another preferred embodiment of the base station-based abnormal vehicle movement management method in embodiment 1 of the present invention.
Fig. 3 is a schematic diagram of a preferred embodiment of a part of steps in the base station-based abnormal vehicle movement management method in embodiment 1 of the present invention.
Fig. 4 is a schematic diagram of a preferred embodiment of the base station-based vehicle abnormal shift management system in embodiment 2 of the present invention.
Fig. 5 is a schematic diagram of another preferred embodiment of the base station-based vehicle abnormal shift management system in embodiment 2 of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Example 1:
as shown in fig. 1, embodiment 1 provides a low-power-consumption vehicle abnormal stealing management method including:
s1: and acquiring base station signal information. In this embodiment, the vehicle is provided with a communication module and a positioning module, wherein a sim card of an operator is inserted into the communication module, so that the available base station signal information near the vehicle can be searched, and further the available base station number and the base station signal strength information can be acquired. Different base stations have different base station numbers, and the base station numbers can be used for identifying the identity of the base stations and the setting positions of the base stations. The base station signal strength information may reflect the distance between the vehicle and the base station, for example, the closer the vehicle is to the base station, the stronger the base station signal is, and vice versa.
The vehicle can be in communication connection with the server, and the vehicle uploads the base station signal information to the server after acquiring the base station signal information. A communication module on a vehicle acquires available base station signal information near the vehicle and sends the base station signal information to a server every other preset period; assuming that the vehicle does not move, the change of the base station signal information acquired by the vehicle is within a certain threshold value range; for example, the base station number does not change, the base station signal strength changes very little, indicating that the vehicle is not moving. If the vehicle moves, the change of the base station signal strength information exceeds the threshold range, the number of times of the change of the base station number and the signal strength fluctuation variance of the base station signal information can be calculated through the base station signal information, and therefore whether the vehicle moves or not is judged. The communication module of the vehicle is based on continuous reading of the SIM card, and the SIM card can adopt a conventional SIM card to continuously check base station signal information of the vehicle. The SIM card has low power consumption, and the vehicle reports the base station signal information and can set a preset period as a minute level threshold value, so that the power consumption is reduced.
And S2, judging whether the vehicle is in a locking state or not, and judging whether the vehicle moves abnormally or not according to the base station signal information. The server judges whether the vehicle moves abnormally after receiving the base station signal information uploaded by the vehicle, and particularly, the communication module of the vehicle can continuously monitor the available base station signal information near the vehicle. The server judges whether the vehicle is in abnormal movement and simultaneously acquires whether the vehicle is in a locking state so as to solve the problems of scanning base station number change and base station signal strength information change caused by riding movement in an unlocking state. The judgment of the locking and unlocking state of the vehicle is executed by the server, for example, the vehicle is reported to the server when being unlocked or locked normally, and the locking and unlocking state of the vehicle can be judged by inquiring the locking and unlocking record. And only when the number of the base station changes and the signal intensity information of the base station changes and exceeds the corresponding preset threshold value in the locking state, the vehicle is judged to be possibly in the abnormal moving state.
S3: if the vehicle is in the locked state and the vehicle is abnormally moved, S4 is executed. If the vehicle is in a locked state and moves abnormally, the method for actively positioning and identifying the position of the abnormal vehicle fully considers the balance between the power consumption and the asset preservation problem, and provides important technical support for the vehicle asset preservation.
S4: generating and sending a first control instruction; once the server identifies that the number of the base station changes and the signal intensity information of the base station changes beyond a certain threshold value when the vehicle is in a locked state, a first control instruction for positioning can be sent to the vehicle, the vehicle is enabled to start a positioning function, and the vehicle starts to be continuously positioned. The first control instruction is an instruction for enabling the vehicle to start the positioning module to continuously position.
S5: positioning information of the vehicle is received based on the first control instruction. After the first control instruction is received, positioning information of the vehicle is obtained according to a preset threshold value period, and the positioning information is sent to a server according to the preset threshold value period. The positioning information of the vehicle can be reported to the server in a threshold value period of 2 minutes, and the position information of the abnormally moving vehicle is continuously monitored. The positioning function of the vehicle is started under the instruction of the first control instruction, continuously acquires the positioning information of the vehicle, and then periodically uploads the positioning information to the server. After receiving the positioning information, the server can acquire the real-time position of the vehicle based on the positioning information reported by the vehicle, and further track the vehicle.
In the base station-based vehicle abnormal movement management method, the base station signal information of the vehicle comprises a base station number and base station signal strength information, and each base station has a unique number. The method comprises the steps that normal operation and maintenance personnel unlock the lock first and then move the vehicle, non-operation and maintenance personnel do not scan the code before moving the vehicle to unlock the lock, if the non-operation and maintenance personnel are far away from a base station with a unique number nearby originally, the first situation is an accident situation, the second situation is the moving which is possibly damaged by people, the two situations are all that usable base station signal information nearby is obtained through a communication module of the vehicle, namely a sim card, and then whether the vehicle is in an abnormal moving state or not is identified according to the base station signal information. If the fact that the number change of the base station and the signal intensity information change of the base station exceed the preset threshold value when the vehicle is in the locking state is identified, the vehicle can be preliminarily judged to be in the abnormal moving state; the positioning function is actively started at the moment, if the vehicle is found to be not moved in situ through positioning, the situation that the vehicle is abnormally moved can be eliminated, if the vehicle is found to be displaced, the vehicle is moved by the nature of being damaged by people, the position information of the alarm vehicle needs to be continuously monitored, and the vehicle which is not moved is tracked. The positioning information of the vehicle is periodically acquired, so that the electric quantity consumed by positioning is saved, and the continuity and effectiveness of the acquisition of the positioning information can be ensured.
As shown in fig. 3, the step of determining whether the vehicle is abnormally moved according to the base station signal information in S2 includes:
s21: and sequencing the base station signal information of the single vehicle according to time, wherein the base station signal information comprises a base station number and base station signal strength information. The vehicle passes through a plurality of base stations in the moving process, and during the period, a plurality of pieces of base station information are acquired. The base station information of the individual vehicles is arranged in the order of time from new to old or from old to new. The time here refers to the time when the vehicle just receives the base station signal information.
S22: and comparing the change times of the base station number in the first preset time sliding window with a time threshold, and judging whether the vehicle is in an abnormal moving state according to whether the change times exceed the time threshold. The first preset time sliding window can adjust the period threshold, and the period of the preset time sliding window can be set according to actual needs.
The S2 further includes:
s23: calculating fluctuation variance of the base station signal strength information in a plurality of continuous first preset time sliding windows;
s24: and judging whether the vehicle is in an abnormal moving state or not according to whether the change times exceed a time threshold value or not and whether the fluctuation variance is larger than a conventional fluctuation threshold value or not. In S24, the conventional fluctuation threshold is also set based on big data and an empirical value, excluding fluctuation variance due to other factors such as environmental factors around the vehicle, and therefore, the setting of the conventional fluctuation threshold is also reasonable. And according to the fluctuation variance being larger than the conventional fluctuation threshold, assistance is further provided for judging whether the vehicle is in an abnormal moving state, and the judgment conditions of the number change times of the base station and the signal intensity fluctuation variances of the base stations in a plurality of continuous first preset time sliding windows are calculated by combining the number change times of the base stations, so that the judgment accuracy can be further improved. Judging whether the vehicle in the locked state is in the abnormal moving state specifically comprises the following conditions that (1) the vehicle can be judged to be in the abnormal moving state only when the change times exceed a time threshold value and the fluctuation variance of the base station signal strength information in a plurality of continuous first preset time sliding windows is not greater than a conventional fluctuation threshold value; (2) otherwise, judging that the vehicle is not in the abnormal moving state according to the condition that the change times do not exceed the time threshold value, or the change times exceed the time threshold value and the fluctuation variance is larger than the conventional fluctuation threshold value.
The S2 further includes:
s25: and judging whether the vehicle is in an abnormal moving state or not according to the change times of the base station number and the value of the fluctuation variance. The number of changes and the value of the fluctuation variance may be linearly weighted, and a weighted value may be calculated by using a formula a x + (1-a) y, where x represents the number of changes of the base station number, y represents the value of the fluctuation variance, a is a weighted parameter set according to an actual situation, a is between 0 and 1, the calculated weighted value is compared with a weighted threshold, if the weighted value is greater than the weighted threshold, it is determined that the vehicle is in an abnormal moving state, and if the weighted value is not greater than the weighted threshold, it is determined that the vehicle is not in an abnormal moving state.
As shown in fig. 2, the step S5 further includes:
s6: sequencing the positioning information according to time, making a second preset time sliding window with a preset period as a period, performing median filtering on the positioning information in the second preset time sliding window, and removing abnormal values of abnormal drift in the positioning information; and calculating the earth surface distance between adjacent points according to the positioning information processed by the abnormal value, judging whether the vehicle generates displacement according to whether the earth surface distance is continuously greater than a distance threshold, if the vehicle does not generate displacement within a continuous preset time period, judging that the vehicle is in error identification abnormal movement, and closing the positioning of the vehicle at the moment. Uploading the acquired positioning information of the vehicle to a server, and performing median filtering on the positioning information in a second preset time sliding window by the server to remove abnormal values of abnormal drift in the positioning information; and calculating the earth surface distance between adjacent points according to the positioning information processed by the abnormal value, and judging whether the vehicle generates displacement according to whether the earth surface distance is continuously larger than a distance threshold value. Specifically, the vehicle continuously reports the positioning information, and the server arranges the positioning information in time sequence according to the reported position information, and sets a second time sliding window with a preset period of about 2 minutes. And performing median filtering on the position data in the second time sliding window to eliminate the locating points with abnormal drift. Calculating the earth surface distance between adjacent points of the positioning points with processed abnormal values, and judging whether the earth surface distance between the positioning points has continuous increasing change in a second time sliding window, for example, the distance threshold is more than 100 meters; and if the earth surface distance value in the continuous time window is increased, judging that the earth surface distance value is displaced, and otherwise, judging that the earth surface distance value is not displaced. If no displacement is found in the reported position within the continuous threshold value period range, the displacement is judged to be the error identification abnormal movement, and the server can issue an instruction for closing the positioning function to the vehicle, so that the power consumption of the vehicle can be reduced.
The step of judging whether the vehicle is abnormally moved according to the base station signal information further comprises the following steps:
and normalizing the base station signal information, and using the information after the normalization processing for correcting the base station signal strength information. The step is realized by a server, the base station signal strength information is a digital set which comprises a plurality of numbers, the numbers are averaged, then the numbers are respectively divided by a square difference, namely normalization processing is carried out, and then the information after the normalization processing is used for correcting the base station signal strength information, so that the accuracy of the base station signal strength information is further improved.
The S6 further includes:
s7: and when the fact that the vehicle does not displace in the continuous preset time period is judged in the step S6, marking the vehicle as a vehicle with abnormal base station scanning, and sending the routing inspection instruction containing the positioning information to related operation and maintenance personnel. And aiming at the abnormal vehicle scanned by the base station, generating a patrol inspection instruction to a local area to be responsible for operation and maintenance personnel, and taking corresponding measures according to the situation, for example, recovering the vehicle for maintenance. When the change of the base station signal strength information exceeds the threshold range, but the vehicle does not generate displacement, which indicates that the base station scanning is abnormal, at this time, the vehicle is marked as a vehicle with abnormal base station scanning, and the base station with abnormal scanning corresponding to the vehicle needs to be overhauled.
The S4 may further include:
s31: acquiring a low-frequency positioning signal of a vehicle to be checked which is not identified to be in an abnormal moving state;
s32: and analyzing the low-frequency positioning signal, and identifying whether the vehicle to be inspected has an abnormally moving vehicle or not according to the vehicle position portrait information generated by the low-frequency positioning signal, if so, executing the step S4.
And if the low-frequency positioning signal finds that the vehicle moves, generating and sending a first control command. The low-frequency positioning signal is a positioning signal acquired by a server by opening the positioning function of the vehicles to be inspected and adopting a lower frequency when the vehicles to be inspected in the abnormal moving state are not identified, vehicle position portrait information and vehicle position portrait information can be generated through the low-frequency positioning signal, whether the positions of the vehicles are displaced or not is actually shown, if the positions of the vehicles are displaced, the vehicles which are abnormally moved exist in the vehicles to be inspected, and if the positions of the vehicles are not displaced, the vehicles which are not abnormally moved exist in the vehicles to be inspected.
The S6 is followed by S7: and selectively and continuously acquiring the positioning information of the vehicle or adjusting the positioning frequency of the vehicle according to whether the vehicle generates displacement within a continuous preset time period. If the displacement is continuously generated all the time, continuously acquiring the positioning information of the vehicle according to the period; if the track is found to have displacement at the beginning and not move any more later, a positioning frequency reducing command is sent to the vehicle, and the positioning frequency of the vehicle is reduced (for example, once in 30 minutes) so as to reduce power consumption and continuously monitor whether the vehicle has a new position change.
Example 2:
as shown in fig. 4, embodiment 2 provides a base station-based vehicle abnormal shift management system including:
a base station detection module 10, configured to obtain base station signal information;
the judging module 20 is connected with the base station detecting module 10 and used for judging whether the vehicle is in a locking state or not and judging whether the vehicle is abnormally moved or not according to the base station signal information;
the control module 30 is connected with the judging module 20 and used for generating and sending a first control instruction when the vehicle is in a locked state and the vehicle is abnormally moved; the control module 30 may be a server or other intelligent terminal to which the vehicle is communicatively connected.
And the positioning module 40 is connected with the control module 30 and is used for acquiring the positioning information of the vehicle based on the first control instruction, and the control module is used for receiving the positioning information of the vehicle.
Once it is recognized that the number of the base station changes and the signal strength information of the base station exceeds a certain threshold value when the vehicle is in the locked state, the control module 30 initiates a first control instruction for positioning the vehicle, so that the vehicle starts the positioning module 40 to start continuous positioning, the control module 30 obtains a positioning result according to a preset threshold value period, the positioning information of the vehicle can be reported to the control module 30 in a threshold value period of 2 minutes, and the control module 30 continuously monitors the position information of the abnormally moving vehicle. The positioning module 40 adopts a GPS module, and has a real-time positioning function. If the fact that the number change of the base station and the signal intensity information change of the base station exceed the preset threshold value when the vehicle is in the locking state is identified, the vehicle can be preliminarily judged to be in the abnormal moving state; at this time, the control module 30 actively starts the positioning function, if the vehicle is found to be not moving in place by positioning, the abnormal moving of the vehicle can be eliminated, and if the vehicle is found to be displaced, which indicates that the vehicle is moved by people with a destructive nature, the position information of the alarm vehicle needs to be continuously monitored, and the vehicle which is not moved is tracked.
The base station detecting module 10 may adopt a SIM card, which is an IC card held by a mobile subscriber of the GSM system, and is called a Subscriber Identity Module (SIM) card, and the GSM system identifies the GSM subscriber through the SIM card. The SIM card can adopt a conventional SIM card, the change of the acquired base station signal information is within a certain threshold range if the vehicle does not move, if the movement occurs, the change of the base station signal information exceeds the threshold range, the number of the change of the base station number and the signal intensity fluctuation variance of the base station signal information can be calculated through the base station signal information, and therefore whether the vehicle is moved or not is judged, wherein the base station detection module 10 continuously checks the base station signal information of the vehicle based on the continuous reading of the SIM card. If it is recognized that the base station signal information of the vehicle in the locked state has changed significantly, the corresponding control module 30 of the vehicle determines in advance that the vehicle is in an abnormal movement state. The SIM card is low in power consumption, the base station detection module 10 can be used for continuously monitoring available base station signal information near the vehicle, the balance between the power consumption and the asset preservation problem is fully considered in the method for actively positioning and identifying the position of the abnormal vehicle in case of abnormal movement, and important technical support is provided for the vehicle asset preservation. The base station detection module 10 reports the base station signal information, and the preset period can be set as a threshold value of the minute level, so that the power consumption can be reduced.
The working principle of the base station-based vehicle abnormal movement management system provided by the embodiment 2 is consistent with that of the embodiment 1, and is not repeated here any more, the system can monitor the base station signal information of the vehicle in real time, actively realize positioning under the condition of abnormal base station signal information, realize all-day supervision under the condition of low power consumption, and can perform monitoring for a long time.
As shown in fig. 5, preferably, the judging module 20 includes:
the base station signal sequencing unit is used for sequencing the base station signal information of a single vehicle according to time, wherein the base station signal information comprises a base station number and base station signal strength information;
and the base station signal judging unit is connected with the base station signal sequencing unit and is used for comparing the change times of the base station numbers in the first preset time sliding window with a time threshold value and judging whether the vehicle is in an abnormal moving state or not according to whether the change times exceed the time threshold value or not.
The base station signal judging unit is used for comparing the change times of the base station number in the first preset time sliding window with the adjustable period threshold with the time threshold, and judging whether the vehicle is in an abnormal moving state or not according to whether the change times exceed the time threshold or not. The number threshold is set according to big data and empirical values, and other factors such as change of base station numbers caused by environmental factors around the vehicle are eliminated, so that when the number of changes exceeds the number threshold, the vehicle can be judged to be in an abnormal moving state. The period of the first preset time sliding window can be adjusted according to actual requirements, and the period threshold is preferably set to be 1-5 minutes. Generally, the number threshold can be selected from 2 or more than 2.
Because the number information of the scanning base station of the vehicle fluctuates, the accuracy is not high only when the number of times of change is judged. Preferably, the judging module 20 includes:
the fluctuation variance calculation unit is used for calculating the fluctuation variance of the base station signal strength information in a plurality of continuous first preset time sliding windows;
and the fluctuation variance judging unit is connected with the fluctuation variance calculating unit and is used for judging whether the vehicle is in an abnormal moving state or not according to whether the change times exceed a time threshold and whether the fluctuation variance is larger than a conventional fluctuation threshold. The implementation manner in this embodiment is the same as S23 to S24 in embodiment 1, and details are not repeated here.
The judging module 20 includes: and the weighting judging unit is connected with the fluctuation variance judging unit and used for judging whether the vehicle is in an abnormal moving state or not according to the change times of the base station number and the value of the fluctuation variance.
The vehicle abnormal movement management system based on the base station further comprises a positioning module 40, wherein the positioning module is used for sequencing the positioning information according to time, making a second preset time sliding window with a preset period as a period, performing median filtering on the positioning information in the second preset time sliding window, and removing abnormal values of abnormal drift in the positioning information; and calculating the earth surface distance between adjacent points according to the positioning information processed by the abnormal value, judging whether the vehicle generates displacement according to whether the earth surface distance is continuously greater than a distance threshold, if the vehicle does not generate displacement within a continuous preset time period, judging that the vehicle is in error identification abnormal movement, and closing the positioning of the vehicle at the moment.
The judging module 20 further includes a base station signal strength correcting unit, connected to the base station signal judging unit, and configured to perform normalization processing on the obtained base station signal information, and apply the information after the normalization processing to the correction of the base station signal strength information.
The base station-based vehicle abnormal movement management system further comprises an operation and maintenance module 60 which is connected with the positioning module 40 and used for marking the vehicle as a vehicle with abnormal base station scanning if the positioning module 40 judges that the vehicle does not generate displacement within a continuous preset time period, and sending a routing inspection instruction containing the positioning information to related operation and maintenance personnel. If the vehicle does not generate displacement and the change of the base station signal information exceeds the threshold value, the vehicle can mark the base station information as abnormal, if the situation that the displacement is not generated is continuously found in the follow-up process, the base station scanning is abnormal, the base station scanning is marked as abnormal, the operation and maintenance module 60 sends an inspection instruction to local areas to be responsible for operation and maintenance personnel, and the vehicle is recovered for maintenance.
The base station-based vehicle abnormal movement management system further comprises an auxiliary identification module 70 connected with the positioning module 40, wherein the auxiliary identification module 70 is used for acquiring a low-frequency positioning signal of a vehicle to be checked which is not identified to be in an abnormal movement state; and analyzing the low-frequency positioning signal, identifying whether the vehicles to be inspected have abnormal moving vehicles or not according to the vehicle position portrait information generated by the low-frequency positioning signal, and if so, generating and sending a first control command. If the abnormal moving vehicles are identified, the positioning module 40 which is in the locking state and is not checked by the base station detection module 10 and the control module 30 to identify the abnormal moving vehicles is started, the positioning module 40 collects low-frequency positioning signals, vehicle position imaging information is generated according to continuous low-frequency positioning signals, if the low-frequency positioning signals of the vehicles are changed greatly, the vehicles are possible to be moved abnormally, auxiliary alarm information is sent to the control module 30, and the auxiliary alarm information is used for monitoring whether the abnormal moving vehicles are missed to be identified or not and assisting to determine the specific number of the abnormal moving vehicles.
The base station-based vehicle abnormal movement management system further comprises an adjusting module 80, connected to the positioning module 40, and configured to selectively and continuously obtain positioning information of the vehicle or adjust the positioning frequency of the vehicle according to whether the vehicle is displaced within a continuous preset time period. When the vehicle finds continuous displacement, the control module 30 continuously collects the position information of the monitored vehicle and tracks the track of the abnormally moved vehicle; further, if the adjustment module 80 finds that the track has a displacement at the beginning and does not move any more afterwards, it will send a command to reduce the positioning frequency to the vehicle, and the positioning frequency of the vehicle is reduced (for example, once in 30 minutes) to reduce power consumption and continuously monitor whether there is a new position change of the vehicle. And according to the placement place where the vehicle is finally abnormally moved, the control module 30 generates an inspection instruction to the local area responsible for operation and maintenance personnel, assigns the operation and maintenance personnel to the place to inspect whether the vehicle is hidden, privately occupied and damaged, and takes corresponding measures according to the situation.
Example 3:
embodiment 3 also provides a vehicle management system, which is provided with the base station-based vehicle abnormal movement management system. With the vehicle management system, the base station signal information of the vehicle is constantly checked based on the continuous reading of the SIM card. Once it is recognized that the base station signal information of the vehicle in the locked state is changed greatly, the corresponding control module 30 of the vehicle pre-determines that the vehicle is in an abnormal moving state, and at this time, the control module 30 actively starts a positioning function. The balance between the power consumption and the asset preservation problem is fully considered, and important technical support is provided for vehicle asset preservation.
Storage medium in the above embodiments-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in the computer system in which the program is executed, or may be located in a different second computer system connected to the computer system through a network (such as the internet). The second computer system may provide the program instructions to the computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems that are connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium provided by the embodiments of the present application contains computer executable instructions, and the computer executable instructions are not limited to the operations of the base station-based vehicle abnormal shift management method and the system thereof described above, and may also execute the relevant operations in the base station-based vehicle abnormal shift management method and the system thereof provided by any embodiments of the present application.
It should be noted that the computer readable medium in the present application may be a computer readable signal medium or a computer readable base station based vehicle abnormal movement management method and system medium thereof, or any combination of the two. A computer readable medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer readable medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In this application, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may be any computer readable medium that is not a computer readable medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, optical cables, RF (radio frequency), etc., or any suitable combination of the foregoing.
The computer readable medium may be embodied in the electronic device; or may exist separately without being assembled into the electronic device.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the disclosure. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (12)
1. A vehicle abnormal movement management method based on a base station is characterized by comprising the following steps:
s1: acquiring base station signal information;
s2: judging whether the vehicle is in a locking state or not, and judging whether the vehicle moves abnormally or not according to the base station signal information;
s3: if the vehicle is in the locked state and the vehicle is abnormally moved, executing S4;
s4: generating and sending a first control instruction;
s5: positioning information of the vehicle is received based on the first control instruction.
2. The base station-based vehicle abnormal movement management method according to claim 1, wherein the step of judging whether the vehicle is abnormally moved based on the base station signal information includes:
s21: sequencing the base station signal information of a single vehicle according to time, wherein the base station signal information comprises a base station number and base station signal strength information;
s22: and comparing the change times of the base station number in the first preset time sliding window with a time threshold, and judging whether the vehicle is in an abnormal moving state according to whether the change times exceed the time threshold.
3. The base station-based vehicle abnormal shift management method according to claim 2, wherein the S2 further includes:
S23: calculating fluctuation variance of the base station signal strength information in a plurality of continuous first preset time sliding windows;
s24: and judging whether the vehicle is in an abnormal moving state or not according to whether the change times exceed a time threshold value or not and whether the fluctuation variance is larger than a conventional fluctuation threshold value or not.
4. The base station-based abnormal vehicle movement management method according to claim 1, further comprising, after the S5:
s6: sequencing the positioning information according to time, making a second preset time sliding window with a preset period as a period, performing median filtering on the positioning information in the second preset time sliding window, and removing abnormal values of abnormal drift in the positioning information; and calculating the earth surface distance between adjacent points according to the positioning information processed by the abnormal value, judging whether the vehicle generates displacement according to whether the earth surface distance is continuously greater than a distance threshold, if the vehicle does not generate displacement within a continuous preset time period, judging that the vehicle is in error identification abnormal movement, and closing the positioning of the vehicle at the moment.
5. The base station-based vehicle abnormal shift management method according to claim 1, wherein the S4 is preceded by:
S31: acquiring a low-frequency positioning signal of a vehicle to be checked which is not identified to be in an abnormal moving state;
s32: and analyzing the low-frequency positioning signal, and identifying whether the vehicle to be inspected has an abnormally moving vehicle or not according to the vehicle position portrait information generated by the low-frequency positioning signal, if so, executing the step S4.
6. A base station-based vehicle abnormal movement management system is characterized by comprising:
the base station detection module is used for acquiring base station signal information;
the judging module is connected with the base station detecting module and used for judging whether the vehicle is in a locking state or not and judging whether the vehicle moves abnormally or not according to the base station signal information;
the control module is connected with the judging module and used for generating and sending a first control instruction when the vehicle is in a locked state and the vehicle is abnormally moved;
and the positioning module is connected with the control module and used for acquiring the positioning information of the vehicle based on the first control instruction, and the control module is used for receiving the positioning information of the vehicle.
7. The base station-based vehicle abnormal movement management system according to claim 6, wherein the judgment module includes:
The base station signal sequencing unit is used for sequencing the base station signal information of a single vehicle according to time, wherein the base station signal information comprises a base station number and base station signal strength information;
and the base station signal judging unit is connected with the base station signal sequencing unit and is used for comparing the change times of the base station numbers in the first preset time sliding window with a time threshold value and judging whether the vehicle is in an abnormal moving state or not according to whether the change times exceed the time threshold value or not.
8. The base station-based vehicle abnormal movement management system according to claim 7, wherein the judgment module includes:
the fluctuation variance calculation unit is used for calculating the fluctuation variance of the base station signal strength information in a plurality of continuous first preset time sliding windows;
and the fluctuation variance judging unit is connected with the fluctuation variance calculating unit and is used for judging whether the vehicle is in an abnormal moving state or not according to whether the change times exceed a time threshold and whether the fluctuation variance is larger than a conventional fluctuation threshold.
9. The base station-based vehicle abnormal movement management system according to claim 6, further comprising a positioning management module, connected to the positioning module, for sequencing the positioning information in time, making a second preset time sliding window with a preset period as a period, performing median filtering on the positioning information in the second preset time sliding window, and removing abnormal values of abnormal drift in the positioning information; and calculating the earth surface distance between adjacent points according to the positioning information processed by the abnormal value, judging whether the vehicle generates displacement according to whether the earth surface distance is continuously greater than a distance threshold, if the vehicle does not generate displacement within a continuous preset time period, judging that the vehicle is in error identification abnormal movement, and closing the positioning of the vehicle at the moment.
10. The base station-based vehicle abnormal stealing management system according to claim 9, further comprising an auxiliary identification module connected to the positioning module, wherein the auxiliary identification module is used for acquiring a low-frequency positioning signal of a vehicle to be inspected which is not identified to be in an abnormal stealing state; and analyzing the low-frequency positioning signal, identifying whether the vehicles to be inspected have abnormal moving vehicles or not according to the vehicle position portrait information generated by the low-frequency positioning signal, and if so, generating and sending a first control command.
11. The system according to claim 9, further comprising an adjusting module, connected to the positioning management module, for selectively and continuously acquiring positioning information of the vehicle or adjusting the positioning frequency of the vehicle according to whether the vehicle is displaced within a continuous preset time period.
12. A vehicle management system characterized in that the base station based vehicle abnormal movement management system according to any one of claims 9 to 11 is provided.
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