Online car-hailing route safety assessment method, system and mobile terminal

Abstract

The present invention discloses a method, system, and mobile terminal for evaluating the safety of online ride-hailing routes. The method comprises: receiving a route safety evaluation request including a route from an online ride-hailing platform; obtaining base station cell / sector switching data covering the route within a preset time range through an operator network; and evaluating the safety of the route and providing feedback of the route safety evaluation results to the online ride-hailing platform. Utilizing the method of the present invention, passengers can understand the safety of their planned routes before boarding, and be reminded to pay attention to driving safety before the vehicle enters an unsafe section of road. This provides passengers with more options and preparations before and after boarding, and can, to a certain extent, curb safety issues associated with online ride-hailing.

Description

Technical Field

[0001] The present invention relates to a method, system and mobile terminal for evaluating the safety of a ride-hailing route. Background Art

[0002] With the acceleration of urbanization and the continuous concentration of urban populations, urban traffic problems are becoming increasingly prominent. Emerging to address these challenges, the platform economy, represented by online ride-hailing services, has rapidly developed. Ride-hailing platforms aggregate information from private cars or other public transportation, converting passenger requests into ride assignments and distributing them to nearby online ride-hailing driver terminals. Upon receiving the assignment, the driver then travels to the passenger's location, picks them up, and delivers them to their destination, completing the assignment. Ride-hailing platforms provide a platform for information exchange between users and rental service personnel, facilitating passenger access while significantly alleviating urban traffic pressures. Summary of the Invention

[0003] However, in practice based on existing technologies, online ride-hailing services have also exposed serious safety issues, with serious incidents occurring frequently. For example, a small number of online ride-hailing drivers have engaged in behaviors that are detrimental to passengers (especially female passengers) when driving to remote locations at night, and some have even endangered the lives of passengers.

[0004] In order to solve the above problems, the present invention provides a method, system and mobile terminal for evaluating the safety of online car-hailing routes.

[0005] A method for assessing the safety of a ride-hailing route, comprising:

[0006] receiving a driving route safety assessment request including a driving route from an online ride-hailing platform;

[0007] Obtaining base station cell / sector handover data covering the driving route within a preset time range through the operator network; and

[0008] Evaluate the safety of the driving route and provide feedback of the safety evaluation result of the driving route to the online ride-hailing platform.

[0009] The method may further comprise:

[0010] The mobile terminal receives and displays the driving route marked with the safety assessment result;

[0011] If there is an unsafe section on the driving route, the mobile terminal determines an emergency contact and notifies the emergency contact of the online car-hailing order, the driving route, and the safety assessment result; and

[0012] When it is determined based on the real-time location of the online-hailing vehicle that the online-hailing vehicle is about to enter the unsafe road section, the real-time driving information of the online-hailing vehicle is notified to the emergency contact while reminding the passengers to pay attention to safety.

[0013] The method may further comprise:

[0014] After the online car-hailing platform receives the car request sent from the mobile terminal, it generates the driving route according to the passenger's departure address and destination address.

[0015] In the method, the driving route safety assessment request may further include an estimated time to pass through each location on the driving route.

[0016] The method may further comprise:

[0017] After receiving the driving route safety assessment request, the base station cell / sector switching data covering the driving route within the preset time range is requested from the operator network according to the driving route. The request for the base station cell / sector switching data includes the driving route and the preset time range for querying the base station cell / sector switching data. The preset time range is pre-configured uniformly or determined in combination with the estimated time of passing through each location on the driving route.

[0018] In the method, the step of evaluating the safety of the driving route may include:

[0019] Dividing the driving route into driving sections corresponding to the base station cells / sectors according to the locations of the base station cells / sectors covering the driving route fed back by the operator network;

[0020] Based on the estimated time for the online-hailing vehicle to arrive at different driving sections, combined with the base station cell / sector switching data covering the driving sections fed back by the operator network, the corresponding base station cell / sector switching data within the estimated time for the online-hailing vehicle to pass through each driving section is counted and compared with a predetermined safety threshold of the base station cell / sector switching data; and

[0021] If the corresponding base station cell / sector switching data within the estimated time is less than the predetermined safety threshold, the driving section is determined to be an unsafe section.

[0022] In the method, the corresponding base station cell / sector handover data may be a median, an average or a maximum value of the number of handovers in a corresponding time period.

[0023] In the method, the base station cell / sector handover data may be the number of handovers or the handover frequency.

[0024] In the method, the unsafe road section on the driving route may be displayed in a striking color on the mobile terminal.

[0025] In the method, the step of determining the emergency contact may include:

[0026] The passenger's contact objects are sorted according to the frequency / number of contacts within the predetermined time range, the frequency / number of contacts within the estimated travel time period, and the response time within the estimated travel time period according to formula (1), and one or more contact objects at the top are selected as the emergency contacts.

[0027] Contact_Tem=(R1×fre_total_i / fre_total_max+R2×fre_drive_i / fre_drive_max) / (R3×time_drive_i / time_drive_max) formula (1)

[0028] Among them, Contact_Tem is the contact heat, which is used to sort the contact objects, R1, R2 and R3 are contact heat factors, fre_total_i / fre_total_max respectively represent the total contact frequency of the contact object within the predetermined time range and the maximum contact frequency among all contact objects, fre_drive_i / fre_drive_max respectively represent the contact frequency of the contact object within the estimated ride time range and the maximum contact frequency among all contact objects, time_drive_i / time_drive_max respectively represent the median or mean of the response time of the contact object within the estimated ride time range and the median or mean of the maximum response time among all contact objects.

[0029] In the method, the step of determining the emergency contact may include:

[0030] The passenger designates the emergency contact in advance on the mobile terminal.

[0031] In the method, the real-time position of the online-hailing vehicle can be compared with the starting position of the unsafe section in the driving route. When the distance between the two is less than a predetermined distance threshold, it is determined that the online-hailing vehicle is about to enter the unsafe section.

[0032] In the method, the passenger may be reminded to pay attention to safety through a text pop-up window, vibration and / or ringtone.

[0033] A system for assessing the safety of online car-hailing routes, comprising:

[0034] A safety assessment / alert server receives a driving route safety assessment request containing a driving route from an online ride-hailing platform, obtains base station cell / sector switching data covering the driving route within a preset time range through the operator network, assesses the safety of the driving route and feeds back the safety assessment result of the driving route to the online ride-hailing platform.

[0035] In the system, when there is an unsafe section on the driving route, when the safety assessment / reminder server determines that the online car-hailing vehicle is about to enter the unsafe section based on the real-time location of the online car-hailing vehicle, it can notify the emergency contact of the real-time driving information of the online car-hailing vehicle while reminding the passengers to pay attention to safety.

[0036] The system may further comprise:

[0037] a mobile terminal that receives and displays the driving route annotated with the safety assessment result, and, if there is an unsafe section on the driving route, determines the emergency contact and receives instructions from the safety assessment / alert server to notify the emergency contact of the real-time driving information of the online ride-hailing vehicle while reminding the passenger to pay attention to safety;

[0038] The online car-hailing platform reports the real-time location of the online car-hailing vehicle to the safety assessment / alert server, and transparently transmits the safety assessment result and safety alert of the driving route to the mobile terminal; and

[0039] The operator network provides a network connection between the mobile terminal, the online car-hailing platform and the safety assessment / alert server.

[0040] In the system, after the online car-hailing platform receives the car request sent from the mobile terminal, it can generate the driving route according to the passenger's departure address and destination address.

[0041] In the system, the driving route safety assessment request may further include an estimated time to pass through each location on the driving route.

[0042] In the system, after receiving the driving route safety assessment request, the security assessment / reminder server can request the base station cell / sector switching data covering the driving route within the preset time range from the operator network according to the driving route, and the request for the base station cell / sector switching data includes the driving route and the preset time range for querying the base station cell / sector switching data. The preset time range is pre-configured uniformly or determined in combination with the estimated time of passing through each location on the driving route.

[0043] In the system, the safety assessment / alert server may divide the driving route into driving sections corresponding to the base station cells / sectors based on the locations of the base station cells / sectors covering the driving route fed back by the operator network.

[0044] Based on the estimated time for the online-hailing car to arrive at different driving sections, combined with the base station cell / sector switching data covering the driving section fed back by the operator network, the corresponding base station cell / sector switching data within the estimated time for the online-hailing car to pass through each driving section is counted and compared with the predetermined safety threshold of the base station cell / sector switching data. If the corresponding base station cell / sector switching data within the estimated time is less than the predetermined safety threshold, the driving section is determined to be an unsafe section.

[0045] In the system, the corresponding base station cell / sector handover data may be a median, an average, or a maximum value of the number of handovers in a corresponding time period.

[0046] In the system, the base station cell / sector handover data may be the number of handovers or the handover frequency.

[0047] In the system, the unsafe road section on the driving route can be displayed in a striking color on the mobile terminal.

[0048] In the system, the mobile terminal can sort the passenger's contact objects according to the frequency / number of contacts within a predetermined time range, the frequency / number of contacts within the estimated travel time period, and the response time within the estimated travel time period according to formula (1), and select one or more contact objects at the top as the emergency contact.

[0049] Contact_Tem=(R1×fre_total_i / fre_total_max+R2×fre_drive_i / fre_drive_max) / (R3×time_drive_i / time_drive_max) formula (1)

[0050] Among them, Contact_Tem is the contact heat, which is used to sort the contact objects, R1, R2 and R3 are contact heat factors, fre_total_i / fre_total_max respectively represent the total contact frequency of the contact object within the predetermined time range and the maximum contact frequency among all contact objects, fre_drive_i / fre_drive_max respectively represent the contact frequency of the contact object within the estimated ride time range and the maximum contact frequency among all contact objects, time_drive_i / time_drive_max respectively represent the median or mean of the response time of the contact object within the estimated ride time range and the median or mean of the maximum response time among all contact objects.

[0051] In the system, the passenger may specify the emergency contact in advance on the mobile terminal.

[0052] In the system, the safety assessment / alert server can compare the real-time position of the online car-hailing vehicle with the starting position of the unsafe section in the driving route, and when the distance between the two is less than a predetermined distance threshold, it is determined that the online car-hailing vehicle is about to enter the unsafe section.

[0053] In the system, the mobile terminal can remind the passenger to pay attention to safety through text pop-up windows, vibration and / or ringtones.

[0054] A mobile terminal for evaluating the safety of a ride-hailing route, the mobile terminal comprising:

[0055] a display module that displays a driving route marked with a safety assessment result;

[0056] The reminder module receives reminder instructions from the ride-hailing platform when the ride-hailing vehicle is about to enter an unsafe road section, reminding passengers to pay attention to safety;

[0057] an emergency contact determination module, which determines an emergency contact according to predetermined rules when there is an unsafe section on the driving route; and

[0058] An information transmission module completes the transmission of the online car-hailing order, the driving route, the safety assessment results and the real-time location of the online car-hailing vehicle.

[0059] In the mobile terminal, the non-safe road section on the driving route can be displayed in a striking color on the mobile terminal.

[0060] In the mobile terminal, the emergency contact determination module can sort the passenger's contact objects according to the frequency / number of contacts within a predetermined time range, the frequency / number of contacts within the estimated boarding time period, and the response time within the estimated boarding time period according to formula (1), and select one or more contact objects at the top as the emergency contact.

[0061] Contact_Tem=(R1×fre_total_i / fre_total_max+R2×fre_drive_i / fre_drive_max) / (R3×time_drive_i / time_drive_max) formula (1)

[0062] Among them, Contact_Tem is the contact heat, which is used to sort the contact objects, R1, R2 and R3 are contact heat factors, fre_total_i / fre_total_max respectively represent the total contact frequency of the contact object within the predetermined time range and the maximum contact frequency among all contact objects, fre_drive_i / fre_drive_max respectively represent the contact frequency of the contact object within the estimated ride time range and the maximum contact frequency among all contact objects, time_drive_i / time_drive_max respectively represent the median or mean of the response time of the contact object within the estimated ride time range and the median or mean of the maximum response time among all contact objects.

[0063] In the mobile terminal, the passenger may specify the emergency contact in advance on the mobile terminal.

[0064] The online car-hailing route safety assessment method, system and mobile terminal of the present invention can enable passengers to understand the safety of the planned driving route before riding, and remind passengers to pay attention to driving safety before the vehicle enters an unsafe section of road, so that passengers have more choices and preparations before and after riding, which can curb the safety issues of online car-hailing to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Specific embodiments of the present invention will be described below with reference to the accompanying drawings, which embodiments are illustrative rather than restrictive.

[0066] Figure 1 This is a functional structure diagram of a system for evaluating the safety of online ride-hailing routes according to an embodiment of the present invention;

[0067] Figure 2 This is a functional structure diagram of a mobile terminal with a function of evaluating the safety of online car-hailing routes according to an embodiment of the present invention;

[0068] Figure 3 is a main workflow diagram of a method for evaluating the safety of a ride-hailing route according to an embodiment of the present invention; and

[0069] Figure 4 4 is a flowchart of a method for evaluating the safety of an online car-hailing route according to an embodiment of the present invention. DETAILED DESCRIPTION

[0070] In response to the safety issues exposed by online ride-hailing in existing technologies and practices, the present invention provides a method for evaluating the safety of online ride-hailing routes.

[0071] The method generates a driving route based on the passenger's departure address and destination address based on existing rules after the online car-hailing platform receives a car request sent from the passenger's mobile terminal; the online car-hailing platform sends the generated driving route to a safety assessment / reminder server to request a safety assessment of the driving route; after receiving the driving route safety assessment request, the safety assessment / reminder server requests the operator network for operator base station cell / sector switching data covering the driving route within a predetermined time range; the operator network queries and feeds back operator base station cell / sector switching data that meets the conditions based on the data request from the security assessment / reminder server; after receiving the operator base station cell / sector switching data covering the driving route, the security assessment / reminder server evaluates and feeds back the safety of the driving route based on predetermined rules; after the passenger's mobile terminal receives the driving route safety assessment result transmitted by the online car-hailing platform, it displays the driving route marked with the safety assessment result; if there is an unsafe section on the driving route, the mobile terminal should determine the emergency contact according to the rules, and notify the emergency contact of information such as the online car-hailing order, the driving route and the safety assessment result. In addition, after the passenger starts riding, the online car-hailing platform will report the real-time location of the vehicle to the safety assessment / reminder server; when the safety assessment / reminder server determines that the online car-hailing vehicle is about to enter an unsafe road section based on the real-time location of the online car-hailing vehicle, the safety assessment / reminder server sends a reminder instruction to the passenger's mobile terminal through the online car-hailing platform; after the passenger's mobile terminal receives the reminder instruction, while reminding the passenger to pay attention to safety, it notifies the emergency contact of the real-time driving information of the online car-hailing vehicle.

[0072] The present invention assesses the safety of a ride-hailing route based on cell / sector handover data from operator base stations covering the route. When a ride-hailing vehicle is about to enter an unsafe section of the route, it reminds passengers to be careful and syncs real-time driving information to emergency contacts. This invention allows passengers to understand the safety of their planned routes before boarding, and reminds them to be careful before entering an unsafe section. This gives passengers more options and preparation before and after boarding, and can, to a certain extent, curb safety issues associated with ride-hailing.

[0073] At the same time, the present invention also provides a system for evaluating the safety of online car-hailing routes.

[0074] The system integrates the existing online ride-hailing platform, mobile terminal, online ride-hailing vehicle, and operator network, and adds a new safety assessment / reminder server to implement the functions of the present invention. The online ride-hailing platform maintains its existing functionality, with a new interface connecting to the safety assessment / reminder server. This new interface adds the ability to request a route safety assessment and real-time vehicle location reporting from the safety assessment / reminder server, while also transparently transmitting the route safety assessment results and safety reminders to the passenger's mobile terminal. The mobile terminal, in addition to its existing functionality, also adds the ability to display the route with the safety assessment results, automatically identify emergency contacts, send relevant information to them, and remind users to be safe. The new safety assessment / reminder server primarily acquires operator base station cell / sector handover data covering the route, assesses and provides feedback on the route's safety according to predetermined rules, and sends reminders when the online ride-hailing vehicle is about to enter an unsafe section of road. The operator network, in addition to its existing connection functionality, adds an interface connecting to the safety assessment / reminder server, adding the ability to receive inquiries and provide feedback on cell / sector handover data covering the route. The online ride-hailing vehicle maintains its existing functionality.

[0075] The main components of the system are Figure 1 shown.

[0076] exist Figure 1 In the figure, the solid lines represent the connections and network elements of the original navigation system, and the dotted lines represent the network elements and connections newly added by the present invention.

[0077] UE (User Equipment) refers to user equipment, that is, mobile terminal 1.

[0078] In addition, the present invention also provides a mobile terminal 1 with a function of evaluating the safety of online car-hailing routes.

[0079] The mobile terminal 1, based on the existing functional modules, adds a display module 6, a reminder module 7, an emergency contact determination module 8, and an information transmission module 9 to implement the functions of the present invention. The display module 6 primarily displays the driving route annotated with the safety assessment results; the reminder module 7 primarily receives reminder instructions from the safety assessment / reminder server transparently transmitted by the online ride-hailing platform when the online ride-hailing vehicle is about to enter an unsafe section of road, reminding passengers to pay attention to safety; the emergency contact determination module 8 primarily determines emergency contacts based on predetermined rules when the driving route contains an unsafe section; and the information transmission module 9 primarily transmits online ride-hailing order information, driving route, safety assessment results, and real-time location.

[0080] The main components of the mobile terminal are as follows Figure 2shown.

[0081] exist Figure 2 In the figure, solid lines represent the existing functional modules of the mobile terminal; dashed lines represent the functional modules newly added by the present invention. The existing functional modules of the mobile terminal include communication module 10, location module 11, etc. The newly added functional modules of the present invention include display module 6, reminder module 7, emergency contact determination module 8, information transmission module 9, etc.

[0082] The main working process of the present invention is as follows Figure 3 shown.

[0083] exist Figure 3 In the figure, the solid lines represent the original processes and network elements of the online car-hailing system, and the dotted lines represent the new processes and network elements added by the present invention.

[0084] OR1: This means that the passenger knows that there are unsafe sections on the route, but still chooses to travel to the destination without canceling or changing the trip.

[0085] The following are some of the main steps in detail.

[0086] 1-4. Requesting an assessment of the safety of your driving route

[0087] After a passenger enters their departure and destination addresses on their mobile terminal 1 and sends a ride request to the ride-hailing platform 3, the platform 3 generates a route from the departure address to the destination address using existing methods. Next, according to existing methods, the platform 3 should send the route to the passenger's mobile terminal 1 for display. However, in the present invention, the platform 3 does not yet provide the route to the passenger's mobile terminal 1. Instead, it requests a safety assessment of the generated route from the newly added safety assessment / alert server 5. This assessment request should include information such as the route and the estimated time to pass through each location along the route.

[0088] The operator network 2 should provide a network connection between the mobile terminal 1 and the online car-hailing platform 3.

[0089] 2-1. Request operator base station cell / sector handover data

[0090] Upon receiving the driving route security assessment request, the security assessment / alert server 5 requests, based on the driving route, from the operator network 2 for base station cell / sector handover data covering the driving route within a predetermined time range. This request should include the driving route and the predetermined time range for querying base station cell / sector handover data. The time range can be pre-configured on the security assessment / alert server 5 or determined based on the estimated time to pass through each location along the driving route.

[0091] After receiving the request for base station cell / sector handover data, operator network 2 determines the base station cells / sectors covered by the driving route based on the route, searches for matching handover data within the specified time range in the request, and feeds the query results back to security assessment / alert server 5. It should be noted that, while feeding back the base station cell / sector handover data covering the driving route, operator network 2 should also simultaneously feed back the location of each base station cell / sector covered by the driving route to security assessment / alert server 5.

[0092] The operator network 2 should provide a network connection between the online car-hailing platform 3 and the safety assessment / alert server 5.

[0093] 3-1 / 3-2, Driving route safety assessment / feedback

[0094] After receiving the operator base station cell / sector handoff data covering the route from the operator network 2, the safety assessment / alert server 5 assesses the safety of the route according to predetermined rules, combining the estimated time it takes to traverse each location along the route. Specifically, the route is divided into driving sections corresponding to the base station cells / sectors based on the locations of the base station cells / sectors covering the route as reported by the operator network. Based on the estimated time it will take for a passenger to reach each driving section and the base station cell / sector handoff data covering that driving section as reported by the operator network, the corresponding base station cell / sector handoff data (which can be the median, average, or maximum number of handoffs within the corresponding time period) within the estimated time that the online ride-hailing vehicle 4 passes through each driving section is collected and compared with a predetermined safety threshold for the base station cell / sector handoff data. If the corresponding base station cell / sector handoff data within the estimated time is less than the predetermined safety threshold, the driving section is determined to be unsafe. The base station cell / sector handoff safety threshold can be configured uniformly on the safety assessment / alert server 5. In addition, the base station cell / sector switching data may be the number of switching times or the switching frequency, etc.

[0095] The safety assessment / reminder server 5 feeds back the driving route safety assessment results to the online car-hailing platform 3.

[0096] The online car-hailing platform 3 feeds back the received driving route safety assessment results and driving route to the passenger's mobile terminal 1.

[0097] 4. Display driving route

[0098] After receiving the driving route and safety assessment results from the online ride-hailing platform 3, the passenger's mobile terminal 1 displays them to the user on the mobile terminal 1. It should be noted that if there are unsafe sections on the driving route, the passenger's mobile terminal 1 should display the unsafe sections in a striking color.

[0099] In addition, if there is no unsafe road section in the driving route, the next working process of the present invention can be directly terminated.

[0100] 5-2. Identify emergency contacts

[0101] If there are unsafe sections on the driving route and the passenger does not change the itinerary and driving route after receiving the driving route safety assessment result, the passenger's mobile terminal 1 should determine the emergency contact for this driving after the passenger starts to travel in the online car-hailing vehicle 4 that comes to pick him up.

[0102] The method for determining emergency contacts can be based on the frequency / number of contacts of the contact objects in the user's social network within a predetermined time range, the frequency / number of contacts within the estimated travel time period, and the response time within the estimated travel time period, and sorted according to formula (1), and one or more contact objects can be selected as emergency contacts for this trip. In addition, the emergency contact can also be specified in advance by the passenger on the mobile terminal 1, or by using voice calls, text messages, and the operator's account opening real-name information and logistics information to determine the emergency contact. The present invention does not limit the method for determining emergency contacts, but recommends using the contact information with the contact object in the social network to determine the emergency contact. Specifically:

[0103] Contact_Tem=(R1×fre_total_i / fre_total_max+R2×fre_drive_i / fre_drive_max) / (R3×time_drive_i / time_drive_max) formula (1)

[0104] Among them, Contact_Tem is the contact heat, which is used to sort the contact objects in the social network from large to small and select one or more contact objects at the top as emergency contacts; R1, R2 and R3 are contact heat factors, and the corresponding values ​​in the present invention are 0.3, 0.4 and 0.3 respectively (the values ​​of the contact heat factors can be adjusted according to actual conditions); fre_total_i / fre_total_max represent the total contact frequency of the contact object within the predetermined time range and the maximum contact frequency among all contact objects respectively; fre_drive_i / fre_drive_max represent the contact frequency of the contact object within the estimated travel time range and the maximum contact frequency among all contact objects respectively; time_drive_i / time_drive_max represent the median (or mean) of the response time of the contact object within the estimated travel time range and the median (or mean) of the maximum response time among all contact objects respectively.

[0105] The passenger's mobile terminal 1 feeds back the driving route and safety assessment results to the determined emergency contact.

[0106] Optionally, after the passenger's mobile terminal 1 feeds back the driving route and safety assessment results to the emergency contact, the emergency contact should be reminded to pay attention to the situation when the passenger is traveling to an unsafe section of the road based on the emergency contact's response, and handle it in a timely manner.

[0107] 6-1 / 6-2 / 6-3, Safety Reminder

[0108] After the passenger gets on the online car-hailing vehicle 4 and starts traveling, the online car-hailing platform 3 reports the real-time location of the vehicle to the safety assessment / reminder server 5; the safety assessment / reminder server 5 compares the received real-time location of the vehicle with the starting position of the unsafe section in the driving route. When the distance between the two is less than a predetermined distance threshold, it can be determined that the online car-hailing vehicle 4 is about to enter the unsafe section; at this time, the safety assessment / reminder server 5 sends a reminder instruction to the passenger's mobile terminal 1 through the online car-hailing platform 3; after receiving the reminder instruction, the passenger's mobile terminal 1 reminds the passenger to pay attention to safety through various forms such as text pop-ups, vibrations, ringtones, etc., and sends real-time driving information in the unsafe section to the emergency contact.

[0109] In order to more intuitively and specifically describe the workflow of the present invention and reflect the convenience it brings to passengers, the workflow of the present invention is described in detail below with reference to an embodiment. Assuming that a certain online car-hailing operator "XX Travel" has deployed / enabled the security assessment / alert server 5 described in the present invention and signed an agreement with a certain telecommunications operator "China XX" regarding the use of base station cell / sector data, and passenger A's mobile terminal Huawei P40 has the online car-hailing route safety assessment function described in the present invention, the specific workflow of this embodiment is as follows:

[0110] 1. Request an assessment of the safety of your driving route

[0111] In this embodiment, it is assumed that passenger A opens the online car-hailing app "XX Travel" on Huawei P40, enters the departure address "Loc_Start" and destination address "Loc_Destination", and sends a ride request to the "XX Travel" platform. The request includes the departure address and destination address entered by passenger A.

[0112] After receiving a ride request from passenger A, the ride-hailing platform "XX Travel" generates a route "Line_Loc_Start_Loc_Destination" from the departure address "Loc_Start" to the destination address "Loc_Destination" according to existing methods based on the departure address "Loc_Start" and destination address "Loc_Destination" in the request. Next, according to existing methods, the ride-hailing platform "XX Travel" should feed back the generated route "Line_Loc_Start_Loc_Destination" to passenger A's P40 for display. However, in this embodiment, the ride-hailing platform "XX Travel" does not feed back the route to passenger A's P40 for the time being, but instead requests a safety assessment of the route "Line_Loc_Start_Loc_Destination" from the newly added safety assessment / alert server 5 of the present invention. The request should include, but is not limited to, the route "Line_Loc_Start_Loc_Destination" and the estimated time "time_i" to pass through each location on the route.

[0113] 2. Request operator base station cell / sector handover data

[0114] In this embodiment, after the newly added security assessment / reminder server 5 of the present invention receives a request for security assessment of the driving route "Line_Loc_Start_Loc_Destination", it requests the base station cell / sector switching data covering the driving route "Line_Loc_Start_Loc_Destination" from the operator network 2. The request should include but is not limited to the driving route "Line_Loc_Start_Loc_Destination" and the predetermined time range for querying the base station cell / sector switching data, such as 15 days in this embodiment.

[0115] After receiving the query request for base station cell / sector switching data, operator network 2 determines the base station cell / sector covering the driving route according to the driving route "Line_Loc_Start_Loc_Destination". For example, in this embodiment, the base station cells covering the driving route starting from the starting address "Loc_Start" can be expressed in sequence as: {cell / sector id, Loc_Enter_i, Loc_Leave_i}, where the cell / sector id refers to the identification of the cell / sector, and "Loc_Enter_i, Loc_Leave_i" respectively represent the intersection position of the i-th cell / sector starting from the starting address of the driving route and the driving route. Here, it is assumed that the covered driving route, starting from the departure address, includes five cells, represented as: {Cell / Sector 01, Loc_Enter_1, Loc_Leave_1}, {Cell / Sector 02, Loc_Enter_2, Loc_Leave_2}, {Cell / Sector 03, Loc_Enter_3, Loc_Leave_3}, {Cell / Sector 04, Loc_Enter_4, Loc_Leave_4}, and {Cell / Sector 05, Loc_Enter_5, Loc_Leave_5}. Operator Network 2 then internally queries the handover data of Mobile Terminal 1 within 15 days for these five cells / sectors. The handover data can be represented as {Cell / Sector ID, Handover In / Out, Mobile Terminal Serial Number, Time}, where Cell / Sector ID is the cell / sector identifier, Handover In / Out indicates whether Mobile Terminal 1 has moved out of or entered a cell / sector, Mobile Terminal Serial Number identifies Mobile Terminal 1, and Time indicates the handover time. In this embodiment, the handover data of a certain cell / sector covering the driving route and meeting the query conditions is represented as follows:

[0116] Table 1: Cell / sector handover data (partial example)

[0117]

[0118] The operator network 2 feeds back to the security assessment / alert server 5 the handover data of the base station cells / sectors covering the driving route “Line_Loc_Start_Loc_Destination” that meet the query conditions and the location information of the intersection of the base station cell / sector coverage area and the driving route.

[0119] 3. Driving route safety assessment / feedback

[0120] In this embodiment, after receiving the base station cell / sector handover data covering the route and the location information where the base station cell / sector coverage intersects the route from the operator network 2, the safety assessment / alert server 5 assesses the safety of the route according to predefined rules, combining the estimated time to pass each location along the route. Specifically, the route is first segmented based on the intersection of the base station cell / sector coverage covering the route "Line_Loc_Start_Loc_Destination" and the route, which can be represented as {segment id, Loc_Enter_i, Loc_Leave_i}. The driving route in this embodiment can be divided into {section 1, Loc_Enter_1, Loc_Leave_1}, {section 2, Loc_Enter_2, Loc_Leave_2}, {section 3, Loc_Enter_3, Loc_Leave_3}, {section 4, Loc_Enter_4, Loc_Leave_4}, and {section 5, Loc_Enter_5, Loc_Leave_5}. Then, based on the estimated time range for reaching each section on the driving route, the handover data of the base station cell / sector corresponding to the driving section within the same time range is statistically analyzed and compared with a pre-configured threshold. If the base station cell / sector handover data within the corresponding time range is greater than or equal to the predetermined threshold, the driving section can be determined to be safe. Otherwise, the driving section can be determined to be unsafe.In this embodiment, it is assumed that the threshold value preset by the security assessment / alert server 5 is 30 times / hour, and the estimated time of passing each section is {section 1, Loc_Enter_1, Loc_Leave_1, time_enter_1, time_leave_1}, {section 2, Loc_Enter_2, Loc_Leave_2, time_enter_2, time_leave_2}, {section 3, Loc_Enter_3, Loc_Leave_3, time_enter_3, time_leave_3}, {section 4, Loc_Enter_4, Loc_Leave_4, time_enter_4, time_leave_4} and {section 5, Loc_Enter_6, Loc_Leave_7, time_enter_6, time_leave_7}. er_5, Loc_Leave_5, time_enter_5, time_leave_5}; the median of the handover data frequency within the base station cell / sector coverage area within 15 days corresponding to the estimated passing time of each driving section are {50 times / hour, 25 times / hour, 60 times / hour, 15 times / hour, 80 times / hour} respectively. Obviously, the median of the handover data frequency within the base station cell / sector coverage area corresponding to sections 2 and 4 is less than the predetermined threshold of 30 times / hour. Therefore, it can be determined that the sections on "Line_Loc_Start_Loc_Destination": {section 2, Loc_Enter_2, Loc_Leave_2} and {section 4, Loc_Enter_4, Loc_Leave_4} are unsafe sections.

[0121] The safety assessment / reminder server 5 feeds back the safety assessment results of the driving route “Line_Loc_Start_Loc_Destination” (i.e., non-safe sections: {section 2, Loc_Enter_2, Loc_Leave_2}, {section 4, Loc_Enter_4, Loc_Leave_4}) and the driving route “Line_Loc_Start_Loc_Destination” to the online car-hailing platform 3.

[0122] The ride-hailing platform 3 feeds back the received driving route "Line_Loc_Start_Loc_Destination" and safety assessment results (i.e., unsafe sections: {Section 2, Loc_Enter_2, Loc_Leave_2}, {Section 4, Loc_Enter_4, Loc_Leave_4}) to passenger A's Huawei P40.

[0123] 4. Display driving route

[0124] In this embodiment, after passenger A's Huawei P40 receives the driving route "Line_Loc_Start_Loc_Destination" and safety assessment results (i.e., unsafe sections: {Section 2, Loc_Enter_2, Loc_Leave_2}, {Section 4, Loc_Enter_4, Loc_Leave_4}) transparently transmitted from the online car-hailing platform 3, the driving route "Line_Loc_Start_Loc_Destination" is displayed in the online car-hailing "XX Travel" software. The unsafe sections ({Section 2, Loc_Enter_2, Loc_Leave_2}, {Section 4, Loc_Enter_4, Loc_Leave_4}) and the corresponding estimated passing time information {time_enter_2, time_leave_2}, {time_enter_4, time_leave_4} should be displayed in a striking color (such as red).

[0125] 5. Identify emergency contacts

[0126] In this embodiment, after receiving the driving route "Line_Loc_Start_Loc_Destination" and safety assessment results (i.e., unsafe sections: {Section 2, Loc_Enter_2, Loc_Leave_2}, {Section 4, Loc_Enter_4, Loc_Leave_4}) transparently transmitted by the online ride-hailing platform 3, when Passenger A begins traveling without changing the itinerary or driving route, the Huawei P40 should determine the emergency contact for Passenger A's current ride. In this embodiment, the method for determining the emergency contact can evaluate and rank the contacts in the social network on the P40 according to formula (1) based on the total contact frequency, the contact frequency within the estimated ride time period, and the response time within the estimated ride time period, and select the top 1-2 contacts as the emergency contacts for this ride. Assume that passenger A's P40 calculates the contact heat (Contact_Tem) for each contact in a social network (such as WeChat) over the past seven days using formula (1). Here, we assume there are five contacts, whose contact heats are Contact_Tem_1, Contact_Tem_2, Contact_Tem_3, Contact_Tem_4, and Contact_Tem_5, and that Contact_Tem_1 > Contact_Tem_2 > Contact_Tem_3 > Contact_Tem_4 > Contact_Tem_5. Therefore, the first two contacts (i.e., Contact C1 and Contact C2) are selected as the emergency contacts for this trip. Because the calculation formula for contact heat is not complex and the data required for the calculation can also be obtained from WeChat on P40, the specific calculation process will not be described in detail here.

[0127] P40 feeds back the driving route "Line_Loc_Start_Loc_Destination" and the safety assessment results (i.e., unsafe sections: {section 2, Loc_Enter_2, Loc_Leave_2}, {section 4, Loc_Enter_4, Loc_Leave_4}) to the emergency contacts, i.e., contact objects C1 and C2 in WeChat.

[0128] 6. Safety reminder

[0129] In this embodiment, after passenger A takes the online car-hailing vehicle 4 and starts traveling according to the route "Line_Loc_Start_Loc_Destination", the online car-hailing vehicle platform 3 reports the real-time location of the vehicle to the safety assessment / reminder server 5; after receiving the real-time location of the vehicle, the safety assessment / reminder server 5 determines the distance between the real-time location of the vehicle and the unsafe section, namely: {section 2, Loc_Enter_2, Loc_Leave_2}, {section 4, Loc_Enter_4, Loc_Leave_4}, and when the distance between the real-time location of the vehicle and the starting position of the unsafe section (such as Loc_Enter_2, Loc_Enter_4) is less than a predetermined distance threshold such as 200 meters, the online car-hailing vehicle platform 3 sends a reminder instruction to the Huawei P40 of passenger A; in this embodiment, it is assumed that at a certain time the online car-hailing vehicle "XX Travel" platform sends a reminder instruction to the safety assessment / reminder server 5. The wake-up server 5 reports the vehicle's real-time location "Loc_Real_Time". After receiving this real-time location, the safety assessment / alert server 5 calculates the distance between the real-time location "Loc_Real_Time" and the starting locations "Loc_Enter_2, Loc_Enter_4" of the unsafe section in the driving route "Line_Loc_Start_Loc_Destination". Here, the distance between the real-time location "Loc_Real_Time" and the starting location "Loc_Enter_2" is 150 meters, which is less than the predetermined distance threshold of 200 meters. Therefore, the safety assessment / alert server 5 sends a reminder instruction to P40 through the online ride-hailing platform 3. After receiving the reminder instruction, P40 reminds user A that they are about to enter an unsafe section through vibration and text pop-up windows, and reminds user A to pay attention to safety. At the same time, after the vehicle enters the unsafe section, the real-time driving information is sent to the emergency contacts, namely contact objects C1 and contact object C2 in WeChat.

[0130] Figure 4 is a flow chart of a method according to an embodiment of the present invention. In this embodiment of the present invention, a method for evaluating the safety of a ride-hailing route includes the following steps:

[0131] S1: Receive a driving route safety assessment request including a driving route from an online ride-hailing platform;

[0132] S2: Obtaining base station cell / sector handover data covering the driving route within a preset time range through the operator network; and

[0133] S3: Evaluate the safety of the driving route and provide feedback on the safety assessment results of the driving route to the online ride-hailing platform.

[0134] By utilizing the method of the present invention, passengers can understand the safety of the planned driving route before boarding the vehicle, and be reminded to pay attention to driving safety before the vehicle enters an unsafe road section. This allows passengers to have more choices and preparations before and after boarding the vehicle, which can greatly curb the safety issues of online ride-hailing.

[0135] In the present invention, the numbering of the steps in the drawings does not limit the execution order of the steps. In other words, the steps in the flowchart can be executed in an order different from the order shown.

[0136] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As is well known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable, and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those skilled in the art that communication media generally embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0137] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for assessing the safety of a ride-hailing route, the method comprising: receiving a driving route safety assessment request including a driving route from an online ride-hailing platform; Obtaining base station cell / sector handover data covering the driving route within a preset time range through the operator network; as well as Assess the safety of the driving route and provide feedback on the safety assessment results of the driving route to the online ride-hailing platform; The step of evaluating the safety of the driving route includes: Dividing the driving route into driving sections corresponding to the base station cells / sectors according to the locations of the base station cells / sectors covering the driving route fed back by the operator network; Based on the estimated time for the online-hailing vehicle to arrive at different driving sections, combined with the base station cell / sector switching data covering the driving sections fed back by the operator network, the corresponding base station cell / sector switching data within the estimated time for the online-hailing vehicle to pass through each driving section is counted and compared with a predetermined safety threshold of the base station cell / sector switching data; and If the corresponding base station cell / sector switching data within the estimated time is less than the predetermined safety threshold, the driving section is determined to be an unsafe section.

2. The method according to claim 1, further comprising: The mobile terminal receives and displays the driving route marked with the safety assessment result; If there is an unsafe section on the driving route, the mobile terminal determines an emergency contact and notifies the emergency contact of the online car-hailing order, the driving route and the safety assessment result; as well as When it is determined based on the real-time location of the online-hailing vehicle that the online-hailing vehicle is about to enter the unsafe road section, the real-time driving information of the online-hailing vehicle is notified to the emergency contact while reminding the passengers to pay attention to safety.

3. The method according to claim 2, further comprising: After the online car-hailing platform receives the car request sent from the mobile terminal, it generates the driving route according to the passenger's departure address and destination address.

4. The method according to claim 1 or 2, wherein: The driving route safety assessment request further includes an estimated time to pass through each location on the driving route.

5. The method according to claim 1 or 2, further comprising: After receiving the driving route safety assessment request, the base station cell / sector switching data covering the driving route within the preset time range is requested from the operator network according to the driving route. The request for the base station cell / sector switching data includes the driving route and the preset time range for querying the base station cell / sector switching data. The preset time range is pre-configured uniformly or determined in combination with the estimated time of passing through each location on the driving route.

6. The method according to claim 1, wherein The corresponding base station cell / sector switching data is the median, average or maximum value of the number of switching times in a corresponding time period.

7. The method according to claim 1, wherein The base station cell / sector switching data is the number of switching times or the switching frequency.

8. The method according to claim 2, wherein: The non-safe road section on the driving route is displayed in a striking color on the mobile terminal.

9. The method according to claim 2, wherein: The step of determining the emergency contact comprises: The passenger's contact objects are sorted according to the frequency / number of contacts within the predetermined time range, the frequency / number of contacts within the estimated travel time period, and the response time within the estimated travel time period according to formula (1), and one or more contact objects at the top are selected as the emergency contacts. Contact_Tem=(R1×fre_total_i / fre_total_max+R2×fre_drive_i / fre_drive_max) / (R3×time_drive_i / time_drive_max) formula (1) Among them, Contact_Tem is the contact heat, which is used to sort the contact objects, R1, R2 and R3 are contact heat factors, fre_total_i / fre_total_max respectively represent the total contact frequency of the contact object within the predetermined time range and the maximum contact frequency among all contact objects, fre_drive_i / fre_drive_max respectively represent the contact frequency of the contact object within the estimated ride time range and the maximum contact frequency among all contact objects, time_drive_i / time_drive_max respectively represent the median or mean of the response time of the contact object within the estimated ride time range and the median or mean of the maximum response time among all contact objects.

10. The method according to claim 2, wherein: The step of determining the emergency contact comprises: The passenger designates the emergency contact in advance on the mobile terminal.

11. The method according to claim 2, wherein: The real-time position of the online-hailing vehicle is compared with the starting position of the unsafe section in the driving route. When the distance between the two is less than a predetermined distance threshold, it is determined that the online-hailing vehicle is about to enter the unsafe section.

12. The method according to claim 2, wherein: The passenger is reminded to pay attention to safety through text pop-up windows, vibration and / or ringtones.

13. A system for assessing the safety of online ride-hailing routes, comprising: A safety assessment / alert server receives a route safety assessment request including a route from a ride-hailing platform, obtains base station cell / sector handover data covering the route within a preset time range through the operator network, assesses the safety of the route, and provides feedback of the route safety assessment result to the ride-hailing platform; Among them, the safety assessment / reminder server divides the driving route into driving sections corresponding to the base station cells / sectors according to the locations of the base station cells / sectors covering the driving route fed back by the operator network, and according to the estimated time for the online car-hailing vehicle to arrive at different driving sections, combined with the base station cell / sector switching data covering the driving sections fed back by the operator network, counts the corresponding base station cell / sector switching data within the estimated time for the online car-hailing vehicle to pass through each driving section and compares it with the predetermined safety threshold of the base station cell / sector switching data. If the corresponding base station cell / sector switching data within the estimated time is less than the predetermined safety threshold, the driving section is determined to be an unsafe section.

14. The system according to claim 13, wherein: In the event that there is an unsafe section on the driving route, when the safety assessment / reminder server determines that the online car-hailing vehicle is about to enter the unsafe section based on the real-time location of the online car-hailing vehicle, while reminding the passengers to pay attention to safety, it notifies the emergency contact of the real-time driving information of the online car-hailing vehicle.

15. The system of claim 14, further comprising: a mobile terminal that receives and displays the driving route annotated with the safety assessment result, and, if there is an unsafe section on the driving route, determines the emergency contact and receives instructions from the safety assessment / alert server to notify the emergency contact of the real-time driving information of the online ride-hailing vehicle while reminding the passenger to pay attention to safety; The online car-hailing platform reports the real-time location of the online car-hailing vehicle to the safety assessment / alert server, and transparently transmits the safety assessment result and safety alert of the driving route to the mobile terminal; as well as The operator network provides a network connection between the mobile terminal, the online car-hailing platform and the safety assessment / alert server.

16. The system according to claim 15, wherein: After the online car-hailing platform receives the car request sent from the mobile terminal, it generates the driving route according to the passenger's departure address and destination address.

17. The system according to any one of claims 13 to 15, wherein: The driving route safety assessment request further includes an estimated time to pass through each location on the driving route.

18. The system according to any one of claims 13 to 15, wherein: After receiving the driving route safety assessment request, the security assessment / reminder server requests the base station cell / sector switching data covering the driving route within the preset time range from the operator network according to the driving route. The request for the base station cell / sector switching data includes the driving route and the preset time range for querying the base station cell / sector switching data. The preset time range is pre-configured uniformly or determined in combination with the estimated time of passing through each location on the driving route.

19. The system of claim 13, wherein: The corresponding base station cell / sector switching data is the median, average or maximum value of the number of switching times in a corresponding time period.

20. The system of claim 13, wherein: The base station cell / sector switching data is the number of switching times or the switching frequency.

21. The system of claim 15, wherein: The non-safe road section on the driving route is displayed in a striking color on the mobile terminal.

22. The system of claim 15, wherein: The mobile terminal sorts the passenger's contact objects according to the frequency / number of contacts within a predetermined time range, the frequency / number of contacts within an estimated travel time period, and the response time within the estimated travel time period according to formula (1), and selects one or more contact objects at the top as the emergency contacts. Contact_Tem=(R1×fre_total_i / fre_total_max+R2×fre_drive_i / fre_drive_max) / (R3×time_drive_i / time_drive_max) formula (1) Among them, Contact_Tem is the contact heat, which is used to sort the contact objects, R1, R2 and R3 are contact heat factors, fre_total_i / fre_total_max respectively represent the total contact frequency of the contact object within the predetermined time range and the maximum contact frequency among all contact objects, fre_drive_i / fre_drive_max respectively represent the contact frequency of the contact object within the estimated ride time range and the maximum contact frequency among all contact objects, time_drive_i / time_drive_max respectively represent the median or mean of the response time of the contact object within the estimated ride time range and the median or mean of the maximum response time among all contact objects.

23. The system of claim 15, wherein: The passenger designates the emergency contact in advance on the mobile terminal.

24. The system according to claim 14 or 15, wherein: The safety assessment / reminder server compares the real-time position of the online car-hailing vehicle with the starting position of the unsafe section in the driving route. When the distance between the two is less than a predetermined distance threshold, it determines that the online car-hailing vehicle is about to enter the unsafe section.

25. The system of claim 15, wherein: The mobile terminal reminds the passenger to pay attention to safety through text pop-up windows, vibration and / or ringtones.

26. A mobile terminal for evaluating the safety of a ride-hailing route, the mobile terminal comprising: a display module that displays a driving route marked with a safety assessment result; The reminder module receives reminder instructions from the ride-hailing platform when the ride-hailing vehicle is about to enter an unsafe road section, reminding passengers to pay attention to safety; an emergency contact determination module, which determines an emergency contact according to predetermined rules when there is an unsafe section on the driving route; as well as An information transmission module, which completes the transmission of the online car-hailing order, the driving route, the safety assessment result, and the real-time location of the online car-hailing vehicle; The safety assessment result is obtained after the safety assessment / alert server assesses the safety of the driving route. The step of assessing the safety of the driving route includes: Dividing the driving route into driving sections corresponding to the base station cells / sectors according to the locations of the base station cells / sectors covering the driving route fed back by the operator network; Based on the estimated time for the online-hailing vehicle to arrive at different driving sections, combined with the base station cell / sector switching data covering the driving sections fed back by the operator network, the corresponding base station cell / sector switching data within the estimated time for the online-hailing vehicle to pass through each driving section is counted and compared with a predetermined safety threshold of the base station cell / sector switching data; and If the corresponding base station cell / sector switching data within the estimated time is less than the predetermined safety threshold, the driving section is determined to be an unsafe section.

27. The mobile terminal according to claim 26, wherein: The non-safe road section on the driving route is displayed in a striking color on the mobile terminal.

28. The mobile terminal according to claim 26, wherein: The emergency contact determination module sorts the passenger's contact objects according to the contact frequency / number of times within a predetermined time range, the contact frequency / number of times within the estimated travel time period, and the response time within the estimated travel time period according to formula (1), and selects one or more contact objects at the top as the emergency contact. Contact_Tem=(R1×fre_total_i / fre_total_max+R2×fre_drive_i / fre_drive_max) / (R3×time_drive_i / time_drive_max) formula (1) Among them, Contact_Tem is the contact heat, which is used to sort the contact objects, R1, R2 and R3 are contact heat factors, fre_total_i / fre_total_max respectively represent the total contact frequency of the contact object within the predetermined time range and the maximum contact frequency among all contact objects, fre_drive_i / fre_drive_max respectively represent the contact frequency of the contact object within the estimated ride time range and the maximum contact frequency among all contact objects, time_drive_i / time_drive_max respectively represent the median or mean of the response time of the contact object within the estimated ride time range and the median or mean of the maximum response time among all contact objects.

29. The mobile terminal according to claim 26, wherein: The passenger designates the emergency contact in advance on the mobile terminal.

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