A smart key management system and method based on big data

Abstract

The present invention discloses a smart key management system and method based on big data, belonging to the field of smart key management technology. The present invention comprises: S10: judging whether the incoming vehicle is an outbound official vehicle; S20: predicting the return coefficient of each outbound official vehicle key; S30: managing each outbound official vehicle key according to the predicted return coefficient of each outbound official vehicle key; S40: controlling the use of the vehicle keys placed in each key card compartment according to the return of the vehicle keys in each key card compartment in the official vehicle key management device. The present invention is conducive to improving the management efficiency of the system for outbound official vehicle keys, and reducing the occurrence of vehicle keys not being returned or delayed after the official vehicle is used. By using the official vehicle key management device to store the official vehicle keys, the orderly storage of the official vehicle keys is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of smart key management, and in particular to a smart key management system and method based on big data. Background Art

[0002] The traditional management of official vehicles still uses manual registration or pure information system management. This management method results in high management costs. Moreover, as the number of official vehicles increases, management efficiency gradually decreases and can no longer meet new management needs.

[0003] The following problems still exist in the management of official vehicles: 1. Manual registration of vehicle applications, collection and returns is time-consuming and labor-intensive, and prone to errors, resulting in unclear vehicle usage records; 2. Vehicle keys are usually kept in a centralized location and placed in a messy manner, making them difficult to find; 3. After the use of the vehicle is completed, there are cases where the vehicle keys are forgotten or returned late; 4. Due to the situation of forgetting to return the vehicle keys or returning the keys late, the flexibility of vehicle mobilization is low, which affects the efficiency of vehicle use. Summary of the invention

[0004] The purpose of the present invention is to provide a smart key management system and method based on big data to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a smart key management method based on big data, the method comprising:

[0006] S10: Each official vehicle is equipped with a number of touch sensors. The touch sensors, official vehicle key terminals and vehicle-mounted terminals communicate with the information management terminal. The real-time image information of the official vehicle parking position is collected based on the camera installed at the official vehicle parking position. When a vehicle enters the official vehicle parking position, it is determined whether the vehicle is an outsourced official vehicle based on the collected real-time image information and the information transmitted by the touch sensors received by the information management terminal.

[0007] S20: judging whether each dispatched official vehicle is located at the official vehicle parking location before the return limit time according to the dispatch status of each dispatched official vehicle, and predicting the return coefficient of each dispatched official vehicle key based on the judgment result;

[0008] S30: managing the keys of each dispatched official vehicle according to the predicted return coefficient of each dispatched official vehicle key;

[0009] S40: According to the return status of the vehicle keys in each key card compartment in the official vehicle key management device, the use status of the vehicle keys placed in each key card compartment is controlled.

[0010] Further, the S10 includes:

[0011] S101: acquiring characteristic information of an incoming vehicle based on the collected real-time image information, the characteristic information including vehicle model information, vehicle identification information and vehicle dent information, the vehicle dent information indicating the number of dents existing in the vehicle and location information of each dent;

[0012] S102: When a dispatched official vehicle collides, a touch sensor located at the collision position of the dispatched official vehicle issues an alarm. The touch sensor transmits the signal strength information output when the alarm is issued to the information management terminal. The information management terminal locks the dispatched official vehicle that matches the touch sensor that issued the alarm based on the received information, and determines whether there is a new dent in the locked dispatched official vehicle. The specific determination method is:

[0013] According to the signal strength value f received by the information management terminal, the collision force f*p of the locked outbound official vehicle is determined to determine whether f*p>F is established. If not, the locked outbound official vehicle will not have a new dent at the collision position. If established, the locked outbound official vehicle will have a new dent at the collision position, where p represents the relationship coefficient between the signal strength value and the collision force, and F represents the deformation force of the locked outbound official vehicle at the collision position;

[0014] S103: based on the entry time of the entering vehicle, the characteristic information of each dispatched official vehicle collected most recently before the entry time is collected, and the collected characteristic information is updated in combination with the newly added depression of the locked dispatched official vehicle;

[0015] According to the matching degree between the acquired feature information of the incoming vehicle and the updated feature information, matching degree = Determine whether the incoming vehicle is an outbound official vehicle. If the matching degree = 1, it means that the incoming vehicle is an outbound official vehicle. If the matching degree ≠ 1, it means that the incoming vehicle is not an outbound official vehicle. Among them, i = 1, 2, ..., m, represents the number corresponding to each outbound official vehicle, m represents the total number of outbound official vehicles, j = 1, 2, ..., n, represents the number corresponding to each concave position in the vehicle, n represents the total number of concave positions in the vehicle, α, β, γ are all proportional coefficients and α + β + γ = 1, a represents the model information of the incoming vehicle, A i represents the vehicle model information of the dispatched official vehicle numbered i, b represents the vehicle identification information of the incoming vehicle, B i Indicates the vehicle identification information of the dispatched official vehicle numbered i. When a=A i , b=B i hour, When a≠A i 、b≠Bi hour, (c 1j ,c 2j ) represents the center coordinate of the depression numbered j in the vehicle entering the vehicle, (C 1ji , C 2ji ) represents the center coordinates of the depression numbered j in the dispatched official vehicle numbered i.

[0016] Further, the S20 includes:

[0017] S201: Obtain the dispatch status of each dispatched official vehicle, which includes the registration borrowing time and registration return time of the dispatched official vehicle. Determine the return limit time point of each dispatched official vehicle. The return limit time point = the registration return time point of the dispatched official vehicle - X, where X = 1. When the dispatched official vehicle does not enter the official vehicle parking position before the return limit time point, the information management terminal sends a location request information to the vehicle-mounted terminal of the dispatched official vehicle at the return limit time point of the dispatched official vehicle. The vehicle-mounted terminal of the dispatched official vehicle feeds back the location information and average driving speed of the dispatched official vehicle to the information management terminal based on the received information. The information management terminal predicts the return coefficient of the dispatched official vehicle key based on the received information. The specific prediction formula is:

[0018]

[0019] Among them, V i represents the average speed of the dispatched official vehicle numbered i, L i represents the distance between the dispatched official vehicle numbered i and the parking location of the official vehicle at the return limit time point. i / V i )>0, When X-(L i / V i )≤0, δ i1 represents the return coefficient of the key of the dispatched official vehicle numbered i;

[0020] S202: When the dispatched official vehicle enters the official vehicle parking position before the return limit time point, the information management terminal sends a warning message to the dispatched official vehicle key terminal. The dispatched official vehicle key terminal sends a warning signal upon receiving the warning message. The dispatched official vehicle driver feeds back the usage information of the dispatched official vehicle key to the information management terminal through the mobile terminal according to the warning message.

[0021] If the usage information of the dispatched official vehicle key received by the information management terminal indicates that the key is to be used continuously, the operation of S201 is executed;

[0022] If the usage information of the dispatched official vehicle key received by the information management terminal is that it has stopped being used, the information management terminal obtains the real-time location information of the dispatched official vehicle key, and predicts the real-time return coefficient of the dispatched official vehicle key based on the obtained information. The specific prediction formula is:

[0023]

[0024] Among them, (x i1 ,y i1 ) represents the real-time location coordinates of the vehicle key of the dispatched official vehicle numbered i, (x i2 ,y i2 ) represents the location coordinates of the official vehicle key management device, δ i2 It represents the real-time return coefficient of the dispatched official vehicle numbered i.

[0025] Furthermore, the specific method of managing the keys of each dispatched official vehicle in S30 is:

[0026] When δ i1 > 0.8, the information management terminal is in the interval between the return limit time point and the predicted time point, and the predicted time point = the return limit time point + 2*q + [X-(L i / V i )], where q represents the average time for the key returner to move from the official vehicle parking position to the official vehicle key management device. The status information of the key card compartment matching the dispatched official vehicle numbered i is obtained in real time. If the status information of the key card compartment is open, the RFID reader / writer set in the key card compartment recognizes the RFID tag set on the dispatched official vehicle key placed in the key card compartment. If the recognition is successful, when the key card compartment is closed, the RFID reader / writer set in the key card compartment recognizes the RFID tag set on the dispatched official vehicle key placed in the key card compartment. i1 Adjustment is made, and the adjustment result is: i1 =1, if the identification is possible but unsuccessful, the information management terminal controls the key card compartment to sound an alarm until the vehicle key placed in the key card compartment is taken out, the information management terminal controls the key card compartment to stop sounding the alarm, and controls the key card compartment to be in a closed state; if the identification is not possible, the information management terminal controls the dispatched official vehicle key to continue to sound an alarm until the dispatched official vehicle key numbered i is placed in the matching key card compartment;

[0027] When δ i2 >0.8, the information management terminal controls the dispatched official vehicle key to continue to sound an alarm until the dispatched official vehicle key numbered i is placed in the matching key card compartment;

[0028] When 0≤δ i1 ≤0.8, the information management terminal sends the return time modification information of the dispatched official vehicle to the vehicle terminal numbered i, and the vehicle terminal feeds back the modified return time to the information management terminal, and the information management terminal updates the dispatch status of the dispatched official vehicle numbered i, and repeats the operations from S10 to S30;

[0029] When 0≤δ i2 ≤0.8, the information management terminal controls the outbound official vehicle key to continue to sound an alarm until the outbound official vehicle key numbered i is placed in the matching key card compartment.

[0030] Furthermore, the specific method of S40 for controlling the use of the vehicle keys placed in each key card compartment is:

[0031] The historical actual return time and historical borrower information of the vehicle keys placed in each key card compartment in the official vehicle key management device are obtained, the historical borrower information is matched with the historical actual return time, and the credit of each historical borrower is predicted. The specific prediction formula is: R g =h g / H g , where g = 1, 2, ..., G, represents the number corresponding to each historical borrower, G represents the total number of historical borrowers, H g indicates the total number of times the historical borrower numbered g has borrowed the official vehicle, h g represents the total number of times the borrower numbered g returned the official vehicle key on time, R g Indicates the credit rating of the historical borrower numbered g;

[0032] According to the management status of the keys of each dispatched official vehicle, the number y of vehicle keys stored in the key card compartment of the official vehicle key management device is obtained in real time, combined with the predicted credit of each borrower, when y<D, the credit of the historical borrowers who submitted the borrowing application will be arranged in order from large to small, and the numbers of the historical borrowers corresponding to the first y credits will be determined, and the information management terminal accepts the borrowing application of the historical borrower with the determined number. When y≥D, when the historical borrower numbered g borrows the official vehicle, the information management terminal accepts the borrowing application of the historical borrower numbered g, where D represents the total number of official vehicles waiting to be borrowed.

[0033] A smart key management system based on big data, the system includes an external official vehicle identification module, an external official vehicle key return coefficient prediction module, an external official vehicle key management module and a vehicle key control module;

[0034] The external official vehicle identification module is used to identify whether the vehicle entering the official vehicle parking position is an external official vehicle;

[0035] The key return coefficient prediction module for dispatched official vehicles is used to predict the return coefficient of each dispatched official vehicle key according to the dispatch situation of the dispatched official vehicles;

[0036] The external official vehicle key management module is used to manage the vehicle keys of each external official vehicle;

[0037] The vehicle key control module is used to control the use of the vehicle keys in each key card compartment.

[0038] Further, the dispatched official vehicle identification module includes a feature information acquisition unit, an official vehicle newly added depression judgment unit and a dispatched official vehicle identification unit;

[0039] When a vehicle enters the official vehicle parking position, the information acquisition unit collects real-time image information of the entering vehicle based on the camera installed at the official vehicle parking position, acquires feature information of the entering vehicle based on the collected information, and transmits the acquired feature information to the dispatched official vehicle identification unit;

[0040] When a dispatched official vehicle collides with another, the information management terminal locks the dispatched official vehicle according to the signal strength information transmitted by the touch sensor, determines whether the locked dispatched official vehicle has a new dent, and transmits the determination information to the dispatched official vehicle identification unit;

[0041] The dispatched official vehicle identification unit receives the feature information transmitted by the information acquisition unit and the judgment information transmitted by the official vehicle new depression judgment unit, and based on the entry time of the entering vehicle, collects the feature information of each dispatched official vehicle that was most recently collected before the entry time, and updates the collected feature information in combination with the determined new depression of the locked dispatched official vehicle, and identifies whether the entering vehicle is a dispatched official vehicle based on the matching degree between the received feature information and the updated feature information, and transmits the identification result to the dispatched official vehicle key return coefficient prediction module.

[0042] Furthermore, the key return coefficient of the dispatched official vehicle includes a dispatched official vehicle distinguishing unit, a first return coefficient prediction unit and a second return coefficient prediction unit;

[0043] The dispatched official vehicle distinguishing unit receives the identification result transmitted by the dispatched official vehicle identification unit, obtains the dispatching status of each dispatched official vehicle, determines the return limit time point of each dispatched official vehicle based on the obtained information, distinguishes the dispatched official vehicles based on the determination result, transmits the information of the dispatched official vehicles that have not entered the official vehicle parking position before the return limit time point to the first return coefficient prediction unit, and transmits the information of the dispatched official vehicles that have entered the official vehicle parking position before the return limit time point to the second return coefficient prediction unit;

[0044] The first return coefficient prediction unit receives the dispatched vehicle information transmitted by the dispatched official vehicle classification unit, and the information management terminal sends location request information to the on-board terminal of the dispatched official vehicle at the return limit time point of the dispatched official vehicle. The on-board terminal of the dispatched official vehicle feeds back the location information and average driving speed of the dispatched official vehicle to the information management terminal based on the received information. The information management terminal predicts the return coefficient of the dispatched official vehicle key based on the received information, and transmits the prediction result to the dispatched official vehicle key management module;

[0045] The first return coefficient prediction unit receives the dispatched vehicle information transmitted by the dispatched official vehicle differentiation unit, and the dispatched official vehicle driver feeds back the usage information of the dispatched official vehicle key to the information management terminal through the mobile terminal. Based on the feedback information received by the information management terminal, the real-time return coefficient of the dispatched official vehicle key is predicted, and the prediction result is transmitted to the dispatched official vehicle key management module.

[0046] Furthermore, the dispatched official vehicle key management module receives the prediction results transmitted by the first return coefficient prediction unit and the second return coefficient prediction unit, manages the vehicle keys of each dispatched vehicle based on the received information, and transmits the management results to the vehicle key control module.

[0047] Furthermore, the vehicle key control module includes a historical borrower credit prediction unit and a vehicle key control unit;

[0048] The historical borrower credit prediction unit obtains the historical actual return time and historical borrower information of the vehicle keys placed in each key card compartment in the official vehicle key management device, predicts the credit of each historical borrower based on the acquired information, and transmits the prediction result to the vehicle key control unit;

[0049] The vehicle key control unit receives the prediction results transmitted by the historical borrower credit prediction unit and the management results transmitted by the dispatched official vehicle key management module, and controls the use of the vehicle keys placed in each key card compartment through the information management terminal based on the received information.

[0050] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0051] 1. The present invention determines whether there is a new depression in the locked out official vehicle through the signal strength information output by the touch sensor when the alarm is issued, and updates the collected feature information based on the judgment result. According to the matching degree between the acquired feature information of the incoming vehicle and the updated feature information, it identifies whether the incoming vehicle is an outbound official vehicle, so as to avoid the inability to accurately identify the vehicle entering the parking position of the official vehicle due to the change of the vehicle body feature information of the outbound official vehicle. The application and return information of the official vehicle is collected through the touch sensor, the official vehicle key terminal and the vehicle-mounted terminal, which reduces the workload of the staff and reduces the analysis efficiency and accuracy of the system on the return of the outbound official vehicle.

[0052] 2. The present invention determines the return limit time point of each dispatched official vehicle through the dispatch status of each dispatched official vehicle, and predicts the return coefficient of each dispatched official vehicle key based on the determination result. Based on the prediction result, the status of each dispatched official vehicle key is managed before the registered return time of the dispatched official vehicle, and the status information of each key card compartment in the official vehicle management device is managed. The present invention can manage the keys of each dispatched official vehicle in different management methods according to the different movement states of the dispatched official vehicle, which is beneficial to improving the management efficiency of the system for the keys of dispatched official vehicles, and reducing the occurrence of vehicle keys not being returned or delayed after the official vehicle is used. By using the official vehicle key management device to store the official vehicle keys, the orderly custody of the official vehicle keys is guaranteed.

[0053] 3. The present invention obtains the number of vehicle keys stored in the key card compartment of the official vehicle key management device in real time according to the management status of each dispatched official vehicle key, combines the predicted credit of each borrower, and uses whether the information management terminal receives the borrowing application of the corresponding historical borrower, which is beneficial to improving the flexibility of calling official vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0055] Figure 1 It is a workflow diagram of a smart key management system and method based on big data of the present invention;

[0056] Figure 2 It is a structural schematic diagram of the working principle of an intelligent key management system and method based on big data of the present invention. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] See also Figure 1 and Figure 2 The present invention provides a technical solution: a smart key management method based on big data, the method comprising:

[0059] S10: Each official vehicle is equipped with a number of touch sensors. The touch sensors, official vehicle key terminals and vehicle-mounted terminals communicate with the information management terminal. The real-time image information of the official vehicle parking position is collected based on the camera installed at the official vehicle parking position. When a vehicle enters the official vehicle parking position, it is determined whether the vehicle is an outsourced official vehicle based on the collected real-time image information and the information transmitted by the touch sensors received by the information management terminal.

[0060] S10 includes:

[0061] S101: acquiring characteristic information of an incoming vehicle based on the collected real-time image information, the characteristic information including vehicle model information, vehicle identification information and vehicle dent information, the vehicle dent information indicating the number of dents existing in the vehicle and location information of each dent;

[0062] S102: When a dispatched official vehicle collides, a touch sensor located at the collision position of the dispatched official vehicle issues an alarm. The touch sensor transmits the signal strength information output when the alarm is issued to the information management terminal. The information management terminal locks the dispatched official vehicle that matches the touch sensor that issued the alarm based on the received information, and determines whether there is a new dent in the locked dispatched official vehicle. The specific determination method is:

[0063] According to the signal strength value f received by the information management terminal, the collision force f*p of the locked outbound official vehicle is determined to determine whether f*p>F is established. If not, the locked outbound official vehicle will not have a new dent at the collision position. If established, the locked outbound official vehicle will have a new dent at the collision position, where p represents the relationship coefficient between the signal strength value and the collision force, and F represents the deformation force of the locked outbound official vehicle at the collision position;

[0064] S103: Based on the entry time of the entering vehicle, the entry time refers to the time when the entering vehicle enters the parking position of the official vehicle, the characteristic information of each dispatched official vehicle collected most recently before the entry time is collected, and the collected characteristic information is updated in combination with the newly added depression of the dispatched official vehicle determined;

[0065] According to the matching degree between the acquired feature information of the incoming vehicle and the updated feature information, Determine whether the incoming vehicle is an outbound official vehicle. If the matching degree = 1, it means that the incoming vehicle is an outbound official vehicle. If the matching degree ≠ 1, it means that the incoming vehicle is not an outbound official vehicle. Among them, i = 1, 2, ..., m, represents the number corresponding to each outbound official vehicle, m represents the total number of outbound official vehicles, j = 1, 2, ..., n, represents the number corresponding to each concave position in the vehicle (the vehicle includes the outbound official vehicle and the incoming vehicle), n represents the total number of concave positions in the vehicle, α, β, γ are all proportional coefficients and α + β + γ = 1, a represents the model information of the incoming vehicle, A i represents the vehicle model information of the dispatched official vehicle numbered i, b represents the vehicle identification information of the incoming vehicle, B i Indicates the vehicle identification information of the dispatched official vehicle numbered i. When a=A i , b=B i 、c 1j =C 1ji 、c 2j =C 2ji hour, When a≠A i 、b≠B i 、c 1j ≠C 1ji 、c 2j ≠C 2ji hour, represents the center coordinate of the depression numbered j in the vehicle entering, (C 1ji , C 2ji) represents the center coordinate of the concave position numbered j in the dispatched official vehicle numbered i. The center of the steering wheel of the dispatched official vehicle numbered i is taken as the coordinate origin, the vertical line passing through the center of the steering wheel is taken as the y-axis, and the line passing through the center of the steering wheel and parallel to the y-axis is taken as the x-axis to construct a plane rectangular coordinate system. The position coordinate (c 1j ,c 2j )、(C 1ji , C 2ji ) are obtained from the constructed plane rectangular coordinate system;

[0066] S20: judging whether each dispatched official vehicle is located at the official vehicle parking location before the return limit time according to the dispatch status of each dispatched official vehicle, and predicting the return coefficient of each dispatched official vehicle key based on the judgment result;

[0067] The S20 includes:

[0068] S201: Obtain the dispatch status of each dispatched official vehicle, which includes the registration borrowing time and registration return time of the dispatched official vehicle. Determine the return limit time point of each dispatched official vehicle. The return limit time point = the registration return time point of the dispatched official vehicle - X, where X = 1, unit: hour. When the dispatched official vehicle does not enter the official vehicle parking position before the return limit time point, the information management terminal sends a location request information to the on-board terminal of the dispatched official vehicle at the return limit time point of the dispatched official vehicle. The on-board terminal of the dispatched official vehicle feeds back the location information and average driving speed of the dispatched official vehicle to the information management terminal based on the received information. The information management terminal predicts the return coefficient of the dispatched official vehicle key based on the received information. The specific prediction formula is:

[0069]

[0070] Among them, V i represents the average speed of the dispatched official vehicle numbered i, L i The distance value between the dispatched official vehicle No. i and the parking location of the official vehicle at the return limit time point (by inputting the location information of the dispatched official vehicle No. i received by the information management terminal and the location information of the parking location of the official vehicle into the map software, and calculating L according to the distance information displayed by the map software) i To determine), when X-(L i / V i )>0, When X-(L i / V i )≤0, δ i1 represents the return coefficient of the key of the dispatched official vehicle numbered i;

[0071] S202: When the dispatched official vehicle enters the official vehicle parking position before the return limit time point, the information management terminal sends a warning message to the dispatched official vehicle key terminal. The dispatched official vehicle key terminal sends a warning signal upon receiving the warning message. The dispatched official vehicle driver feeds back the usage information of the dispatched official vehicle key to the information management terminal through the mobile terminal according to the warning message.

[0072] If the usage information of the dispatched official vehicle key received by the information management terminal indicates that the key is to be used continuously, the operation of S201 is executed;

[0073] If the usage information of the dispatched official vehicle key received by the information management terminal is that it has stopped being used, the information management terminal obtains the real-time location information of the dispatched official vehicle key, and predicts the real-time return coefficient of the dispatched official vehicle key based on the obtained information. The specific prediction formula is:

[0074]

[0075] Among them, (x i1 ,y i1 ) represents the real-time location coordinates of the vehicle key of the dispatched official vehicle numbered i, (x i2 ,y i2 ) represents the location coordinates of the official vehicle key management device, and the location coordinates (x i1 ,y i1 )、(x i2 ,y i2 ) are obtained from the map coordinates, δ i2 represents the real-time return coefficient of the dispatched official vehicle numbered i;

[0076] S30: managing the keys of each dispatched official vehicle according to the predicted return coefficient of each dispatched official vehicle key;

[0077] The specific method for S30 to manage the keys of each dispatched official vehicle is as follows:

[0078] When δ i1 > 0.8, the information management terminal is in the interval between the return limit time point and the predicted time point, and the predicted time point = the return limit time point + 2*q + [X-(L i / V i )], where q represents the average time for the key returner to move from the official vehicle parking location to the official vehicle key management device. i / V i )≤0, That is, δ i1=0, when X-(L i / V i )>0, That is, δ i1 >0, therefore, when δ i1 >0.8, X-(L i / V i )>0, the status information of the key card compartment matching the dispatched official vehicle numbered i is obtained in real time. If the status information of the key card compartment is open, the RFID reader / writer set in the key card compartment recognizes the RFID tag set on the dispatched official vehicle key placed in the key card compartment. If the recognition is successful, when the key card compartment is closed, the RFID reader / writer set in the key card compartment recognizes the RFID tag set on the dispatched official vehicle key placed in the key card compartment. i1 Adjustment is made, and the adjustment result is: i1 =1, if the identification is possible but unsuccessful, the information management terminal controls the key card compartment to sound an alarm until the vehicle key placed in the key card compartment is taken out, the information management terminal controls the key card compartment to stop sounding the alarm, and controls the key card compartment to be in a closed state; if the identification is not possible, the information management terminal controls the dispatched official vehicle key to continue to sound an alarm until the dispatched official vehicle key numbered i is placed in the matching key card compartment;

[0079] When δ i2 >0.8, the information management terminal controls the dispatched official vehicle key to continue to sound an alarm until the dispatched official vehicle key numbered i is placed in the matching key card compartment;

[0080] When 0≤δ i1 ≤0.8, the information management terminal sends the return time modification information of the dispatched official vehicle to the vehicle terminal numbered i, and the vehicle terminal feeds back the modified return time to the information management terminal, and the information management terminal updates the dispatch status of the dispatched official vehicle numbered i, and repeats the operations from S10 to S30;

[0081] When 0≤δ i2 When ≤0.8, the information management terminal controls the dispatched official vehicle key to continuously sound an alarm until the dispatched official vehicle key numbered i is placed in the matching key card compartment;

[0082] S40: According to the return status of the vehicle keys in each key card compartment in the official vehicle key management device, the use status of the vehicle keys placed in each key card compartment is controlled;

[0083] The specific method of S40 for controlling the use of the vehicle keys placed in each key card compartment is:

[0084] The historical actual return time and historical borrower information of the vehicle keys placed in each key card compartment in the official vehicle key management device are obtained, the historical borrower information is matched with the historical actual return time, and the credit of each historical borrower is predicted. The specific prediction formula is: R g =h g / H g , where g = 1, 2, ..., G, represents the number corresponding to each historical borrower, G represents the total number of historical borrowers, H g indicates the total number of times the historical borrower numbered g has borrowed the official vehicle, h g represents the total number of times the borrower numbered g returned the official vehicle key on time, R g Indicates the credit rating of the historical borrower numbered g;

[0085] According to the management status of the keys of each dispatched official vehicle, the number y of vehicle keys stored in the key card compartment of the official vehicle key management device is obtained in real time, combined with the predicted credit of each borrower, when y<D, the credit of the historical borrowers who submitted the borrowing application will be arranged in order from large to small, and the numbers of the historical borrowers corresponding to the first y credits will be determined, and the information management terminal will accept the borrowing application of the historical borrower with the determined number, and the information management terminal will not accept the borrowing application of the historical borrower with other numbers except the determined number. When y≥D, when the historical borrower numbered g borrows the official vehicle, the information management terminal will accept the borrowing application of the historical borrower numbered g, where D represents the total number of official vehicles waiting to be borrowed.

[0086] An intelligent key management system based on big data, the system includes an external official vehicle identification module, an external official vehicle key return coefficient prediction module, an external official vehicle key management module and a vehicle key control module;

[0087] The outbound official vehicle identification module is used to identify whether the vehicle entering the official vehicle parking position is an outbound official vehicle;

[0088] The outbound official vehicle identification module includes a feature information acquisition unit, an official vehicle newly added depression judgment unit and an outbound official vehicle identification unit;

[0089] When a vehicle enters the official vehicle parking position, the information acquisition unit collects real-time image information of the entering vehicle based on the camera installed at the official vehicle parking position, obtains feature information of the entering vehicle based on the collected information, and transmits the obtained feature information to the dispatched official vehicle identification unit;

[0090] When a dispatched official vehicle collides with another, the information management terminal locks the dispatched official vehicle according to the signal strength information transmitted by the touch sensor, determines whether the locked dispatched official vehicle has any new dents, and transmits the judgment information to the dispatched official vehicle identification unit;

[0091] The dispatched official vehicle identification unit receives the characteristic information transmitted by the information acquisition unit and the judgment information transmitted by the official vehicle newly added depression judgment unit, collects the characteristic information of each dispatched official vehicle that was most recently collected before the entry time based on the entry time of the vehicle, updates the collected characteristic information in combination with the newly added depression of the locked dispatched official vehicle, identifies whether the vehicle is a dispatched official vehicle based on the matching degree between the received characteristic information and each characteristic information after the update processing, and transmits the identification result to the dispatched official vehicle key return coefficient prediction module;

[0092] The key return coefficient prediction module for dispatched official vehicles is used to predict the return coefficient of each dispatched official vehicle key according to the dispatch situation of the dispatched official vehicles;

[0093] The key return coefficient of the dispatched official vehicle includes a dispatched official vehicle distinguishing unit, a first return coefficient prediction unit and a second return coefficient prediction unit;

[0094] The dispatched official vehicle distinguishing unit receives the identification result transmitted by the dispatched official vehicle identification unit, obtains the dispatching status of each dispatched official vehicle, determines the return limit time point of each dispatched official vehicle based on the obtained information, distinguishes the dispatched official vehicles based on the determination result, transmits the information of the dispatched official vehicle that has not entered the official vehicle parking position before the return limit time point to the first return coefficient prediction unit, and transmits the information of the dispatched official vehicle that has entered the official vehicle parking position before the return limit time point to the second return coefficient prediction unit;

[0095] The first return coefficient prediction unit receives the dispatched vehicle information transmitted by the dispatched official vehicle classification unit. The information management terminal sends location request information to the on-board terminal of the dispatched official vehicle at the return limit time point of the dispatched official vehicle. The on-board terminal of the dispatched official vehicle feeds back the location information and average driving speed of the dispatched official vehicle to the information management terminal based on the received information. The information management terminal predicts the return coefficient of the dispatched official vehicle key based on the received information, and transmits the prediction result to the dispatched official vehicle key management module;

[0096] The first return coefficient prediction unit receives the dispatched vehicle information transmitted by the dispatched official vehicle classification unit, and the dispatched official vehicle driver feeds back the usage information of the dispatched official vehicle key to the information management terminal through the mobile terminal, and predicts the real-time return coefficient of the dispatched official vehicle key according to the feedback information received by the information management terminal, and transmits the prediction result to the dispatched official vehicle key management module;

[0097] The key management module for dispatched official vehicles is used to manage the vehicle keys of each dispatched official vehicle;

[0098] The dispatched official vehicle key management module receives the prediction results transmitted by the first return coefficient prediction unit and the second return coefficient prediction unit, manages the vehicle keys of each dispatched vehicle based on the received information, and transmits the management results to the vehicle key control module;

[0099] The vehicle key control module is used to control the use of vehicle keys in each key card compartment;

[0100] The vehicle key control module includes a historical borrower credit prediction unit and a vehicle key control unit;

[0101] The historical borrower credit prediction unit obtains the historical actual return time and historical borrower information of the vehicle keys placed in each key card compartment in the official vehicle key management device, predicts the credit of each historical borrower based on the acquired information, and transmits the prediction result to the vehicle key control unit;

[0102] The vehicle key control unit receives the prediction results transmitted by the historical borrower credit prediction unit and the management results transmitted by the dispatched official vehicle key management module, and controls the use of the vehicle keys placed in each key card compartment through the information management terminal based on the received information.

[0103] Example 1: Assume that the total number of times H1=30 that the historical borrower No. 1 has borrowed the official vehicle, and the total number of times h1=25 that the historical borrower No. 1 has returned the official vehicle key on time, then the credit rating of the historical borrower No. 1 is:

[0104] R1=h1 / H1=25 / 30=0.83;

[0105] If the number of vehicle keys stored in the key card compartment of the official vehicle key management device obtained in real time is y=6, and the total number of official vehicles waiting to be borrowed is D=5, since y=6>D=5, the information management terminal accepts the borrowing application of the historical borrower numbered 1.

[0106] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0107] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A smart key management method based on big data, characterized in that: The method comprises: S10: Each official vehicle is equipped with a number of touch sensors. The touch sensors, official vehicle key terminals and vehicle-mounted terminals communicate with the information management terminal. The real-time image information of the official vehicle parking position is collected based on the camera installed at the official vehicle parking position. When a vehicle enters the official vehicle parking position, it is determined whether the vehicle is an outsourced official vehicle based on the collected real-time image information and the information transmitted by the touch sensors received by the information management terminal. The S10 includes: S101: acquiring characteristic information of an incoming vehicle based on the collected real-time image information, the characteristic information including vehicle model information, vehicle identification information and vehicle dent information, the vehicle dent information indicating the number of dents existing in the vehicle and location information of each dent; S102: When a dispatched official vehicle collides, a touch sensor located at the collision position of the dispatched official vehicle issues an alarm. The touch sensor transmits the signal strength information output when the alarm is issued to the information management terminal. The information management terminal locks the dispatched official vehicle that matches the touch sensor that issued the alarm based on the received information, and determines whether there is a new dent in the locked dispatched official vehicle. The specific determination method is: According to the signal strength value f received by the information management terminal, the collision force f*p of the locked outbound official vehicle is determined to determine whether f*p>F is established. If not, the locked outbound official vehicle will not have a new dent at the collision position. If established, the locked outbound official vehicle will have a new dent at the collision position, where p represents the relationship coefficient between the signal strength value and the collision force, and F represents the deformation force of the locked outbound official vehicle at the collision position; S103: based on the entry time of the entering vehicle, the characteristic information of each dispatched official vehicle collected most recently before the entry time is collected, and the collected characteristic information is updated in combination with the newly added depression of the locked dispatched official vehicle; According to the matching degree between the acquired feature information of the incoming vehicle and the updated feature information, Determine whether the incoming vehicle is an outbound official vehicle. If the matching degree = 1, it means that the incoming vehicle is an outbound official vehicle. If the matching degree ≠ 1, it means that the incoming vehicle is not an outbound official vehicle. Among them, i = 1, 2, ..., m, represents the number corresponding to each outbound official vehicle, m represents the total number of outbound official vehicles, j = 1, 2, ..., n, represents the number corresponding to each concave position in the vehicle, n represents the total number of concave positions in the vehicle, α, β, γ are all proportional coefficients and α + β + γ = 1, a represents the model information of the incoming vehicle, A i represents the vehicle model information of the dispatched official vehicle numbered i, b represents the vehicle identification information of the incoming vehicle, B i Indicates the vehicle identification information of the dispatched official vehicle numbered i. When a=A i , b=B i hour, When a≠A i 、b≠B i hour, (c 1j ,c 2j ) represents the center coordinate of the depression numbered j in the vehicle entering the vehicle, (C 1ji， C 2ji ) represents the center coordinates of the depression numbered j in the dispatched official vehicle numbered i; S20: judging whether each dispatched official vehicle is located at the official vehicle parking location before the return limit time according to the dispatch status of each dispatched official vehicle, and predicting the return coefficient of each dispatched official vehicle key based on the judgment result; S30: managing the keys of each dispatched official vehicle according to the predicted return coefficient of each dispatched official vehicle key; S40: According to the return status of the vehicle keys in each key card compartment in the official vehicle key management device, the use status of the vehicle keys placed in each key card compartment is controlled.

2. The smart key management method based on big data according to claim 1, characterized in that: The S20 includes: S201: Obtain the dispatch status of each dispatched official vehicle, which includes the registration borrowing time and registration return time of the dispatched official vehicle. Determine the return limit time point of each dispatched official vehicle. The return limit time point = the registration return time point of the dispatched official vehicle - X, where X = 1. When the dispatched official vehicle does not enter the official vehicle parking position before the return limit time point, the information management terminal sends a location request information to the vehicle-mounted terminal of the dispatched official vehicle at the return limit time point of the dispatched official vehicle. The vehicle-mounted terminal of the dispatched official vehicle feeds back the location information and average driving speed of the dispatched official vehicle to the information management terminal based on the received information. The information management terminal predicts the return coefficient of the dispatched official vehicle key based on the received information. The specific prediction formula is: Among them, V i represents the average speed of the dispatched official vehicle numbered i, L i represents the distance between the dispatched official vehicle numbered i and the parking location of the official vehicle at the return limit time point. i / V i )>0, When X-(L i / V i )≤0, δ i1 represents the return coefficient of the key of the dispatched official vehicle numbered i; S202: When the dispatched official vehicle enters the official vehicle parking position before the return limit time point, the information management terminal sends a warning message to the dispatched official vehicle key terminal. The dispatched official vehicle key terminal sends a warning signal upon receiving the warning message. The dispatched official vehicle driver feeds back the usage information of the dispatched official vehicle key to the information management terminal through the mobile terminal according to the warning message. If the usage information of the dispatched official vehicle key received by the information management terminal indicates that the key is to be used continuously, the operation of S201 is executed; If the usage information of the dispatched official vehicle key received by the information management terminal is that it has stopped being used, the information management terminal obtains the real-time location information of the dispatched official vehicle key, and predicts the real-time return coefficient of the dispatched official vehicle key based on the obtained information. The specific prediction formula is: Among them, (x i1 ,y i1 ) represents the real-time location coordinates of the vehicle key of the dispatched official vehicle numbered i, (x i2 ,y i2 ) represents the location coordinates of the official vehicle key management device, δ i2 It represents the real-time return coefficient of the dispatched official vehicle numbered i.

3. The smart key management method based on big data according to claim 2 is characterized in that: The specific method of managing the keys of each dispatched official vehicle in S30 is: When δ i1 > 0.8, the information management terminal is in the interval between the return limit time point and the predicted time point, and the predicted time point = the return limit time point + 2*q + [X-(L i / V i )], where q represents the average time for the key returner to move from the official vehicle parking position to the official vehicle key management device. The status information of the key card compartment matching the dispatched official vehicle numbered i is obtained in real time. If the status information of the key card compartment is open, the RFID reader / writer set in the key card compartment recognizes the RFID tag set on the dispatched official vehicle key placed in the key card compartment. If the recognition is successful, when the key card compartment is closed, the RFID reader / writer set in the key card compartment recognizes the RFID tag set on the dispatched official vehicle key placed in the key card compartment. i1 Adjustment is made, and the adjustment result is: i1 =1, if the identification is possible but unsuccessful, the information management terminal controls the key card compartment to sound an alarm until the vehicle key placed in the key card compartment is taken out, the information management terminal controls the key card compartment to stop sounding the alarm, and controls the key card compartment to be in a closed state; if the identification is not possible, the information management terminal controls the dispatched official vehicle key to continue to sound an alarm until the dispatched official vehicle key numbered i is placed in the matching key card compartment; When δ i2 >0.8, the information management terminal controls the dispatched official vehicle key to continue to sound an alarm until the dispatched official vehicle key numbered i is placed in the matching key card compartment; When 0≤δ i1 ≤0.8, the information management terminal sends the return time modification information of the dispatched official vehicle to the vehicle terminal numbered i, and the vehicle terminal feeds back the modified return time to the information management terminal, and the information management terminal updates the dispatch status of the dispatched official vehicle numbered i, and repeats the operations from S10 to S30; When 0≤δ i2 ≤0.8, the information management terminal controls the outbound official vehicle key to continue to sound an alarm until the outbound official vehicle key numbered i is placed in the matching key card compartment.

4. The smart key management method based on big data according to claim 3 is characterized by: The specific method of S40 for controlling the use of the vehicle keys placed in each key card compartment is: The historical actual return time and historical borrower information of the vehicle keys placed in each key card compartment in the official vehicle key management device are obtained, the historical borrower information is matched with the historical actual return time, and the credit of each historical borrower is predicted. The specific prediction formula is: R g =h g / H g , where g = 1, 2, ..., G, represents the number corresponding to each historical borrower, G represents the total number of historical borrowers, H g indicates the total number of times the historical borrower numbered g has borrowed the official vehicle, h g represents the total number of times the borrower numbered g returned the official vehicle key on time, R g Indicates the credit rating of the historical borrower numbered g; According to the management status of the keys of each dispatched official vehicle, the number y of vehicle keys stored in the key card compartment of the official vehicle key management device is obtained in real time, combined with the predicted credit of each borrower, when y<D, the credit of the historical borrowers who submitted the borrowing application will be arranged in order from large to small, and the numbers of the historical borrowers corresponding to the first y credits will be determined, and the information management terminal accepts the borrowing application of the historical borrower with the determined number. When y≥D, when the historical borrower numbered g borrows the official vehicle, the information management terminal accepts the borrowing application of the historical borrower numbered g, where D represents the total number of official vehicles waiting to be borrowed.

5. A smart key management system based on big data applied to the smart key management method based on big data according to any one of claims 1 to 4, characterized in that: The system includes an external official vehicle identification module, an external official vehicle key return coefficient prediction module, an external official vehicle key management module and a vehicle key control module; The external official vehicle identification module is used to identify whether the vehicle entering the official vehicle parking position is an external official vehicle; The dispatched official vehicle identification module includes a feature information acquisition unit, an official vehicle newly added depression judgment unit and a dispatched official vehicle identification unit; When a vehicle enters the official vehicle parking position, the information acquisition unit collects real-time image information of the entering vehicle based on the camera installed at the official vehicle parking position, acquires feature information of the entering vehicle based on the collected information, and transmits the acquired feature information to the dispatched official vehicle identification unit; When a dispatched official vehicle collides with another, the information management terminal locks the dispatched official vehicle according to the signal strength information transmitted by the touch sensor, determines whether the locked dispatched official vehicle has a new dent, and transmits the determination information to the dispatched official vehicle identification unit; The dispatched official vehicle identification unit receives the characteristic information transmitted by the information acquisition unit and the judgment information transmitted by the official vehicle newly added depression judgment unit, collects the characteristic information of each dispatched official vehicle that was most recently collected before the entry time based on the entry time of the vehicle, updates the collected characteristic information in combination with the newly added depression of the locked dispatched official vehicle, identifies whether the vehicle is a dispatched official vehicle based on the matching degree between the received characteristic information and each characteristic information after the update processing, and transmits the identification result to the dispatched official vehicle key return coefficient prediction module; The key return coefficient prediction module for dispatched official vehicles is used to predict the return coefficient of each dispatched official vehicle key according to the dispatch situation of the dispatched official vehicles; The external official vehicle key management module is used to manage the vehicle keys of each external official vehicle; The vehicle key control module is used to control the use of the vehicle keys in each key card compartment.

6. The big data-based smart key management system according to claim 5, characterized in that: The key return coefficient of the dispatched official vehicle includes a dispatched official vehicle distinguishing unit, a first return coefficient prediction unit and a second return coefficient prediction unit; The dispatched official vehicle distinguishing unit receives the identification result transmitted by the dispatched official vehicle identification unit, obtains the dispatching status of each dispatched official vehicle, determines the return limit time point of each dispatched official vehicle based on the obtained information, distinguishes the dispatched official vehicles based on the determination result, transmits the information of the dispatched official vehicles that have not entered the official vehicle parking position before the return limit time point to the first return coefficient prediction unit, and transmits the information of the dispatched official vehicles that have entered the official vehicle parking position before the return limit time point to the second return coefficient prediction unit; The first return coefficient prediction unit receives the dispatched vehicle information transmitted by the dispatched official vehicle classification unit, and the information management terminal sends location request information to the on-board terminal of the dispatched official vehicle at the return limit time point of the dispatched official vehicle. The on-board terminal of the dispatched official vehicle feeds back the location information and average driving speed of the dispatched official vehicle to the information management terminal based on the received information. The information management terminal predicts the return coefficient of the dispatched official vehicle key based on the received information, and transmits the prediction result to the dispatched official vehicle key management module; The first return coefficient prediction unit receives the dispatched vehicle information transmitted by the dispatched official vehicle differentiation unit, and the dispatched official vehicle driver feeds back the usage information of the dispatched official vehicle key to the information management terminal through the mobile terminal. Based on the feedback information received by the information management terminal, the real-time return coefficient of the dispatched official vehicle key is predicted, and the prediction result is transmitted to the dispatched official vehicle key management module.

7. The big data-based smart key management system according to claim 6, characterized in that: The dispatched official vehicle key management module receives the prediction results transmitted by the first return coefficient prediction unit and the second return coefficient prediction unit, manages the vehicle keys of each dispatched vehicle based on the received information, and transmits the management results to the vehicle key management and control module.

8. The big data-based smart key management system according to claim 7, characterized in that: The vehicle key control module includes a historical borrower credit prediction unit and a vehicle key control unit; The historical borrower credit prediction unit obtains the historical actual return time and historical borrower information of the vehicle keys placed in each key card compartment in the official vehicle key management device, predicts the credit of each historical borrower based on the acquired information, and transmits the prediction result to the vehicle key control unit; The vehicle key control unit receives the prediction results transmitted by the historical borrower credit prediction unit and the management results transmitted by the dispatched official vehicle key management module, and controls the use of the vehicle keys placed in each key card compartment through the information management terminal based on the received information.

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