Elevator passenger boarding data processing system

Abstract

The application discloses an elevator passenger boarding data processing system, comprising: a passenger boarding data acquisition unit, used for acquiring boarding data of at least one suspected case passenger and at least one other passenger; an element calculation unit, used for calculating infection elements by using the boarding data, wherein the infection elements comprise a travel trajectory of a passenger and a corresponding time span; and an infection risk judgment unit, used for judging whether the other passenger has an infection risk when the infection elements of the suspected case passenger and the other passenger have an intersection. Compared with the prior art, the technical scheme of the application can more accurately identify the infection risk of the other passenger when the suspected case passenger appears, and can reduce the investigation range.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of elevator technology, and particularly relates to an elevator passenger boarding data processing system. BACKGROUND

[0002] When a public health event (such as an infectious epidemic) occurs, in order to cut off the transmission route of the epidemic as soon as possible and achieve effective control of the epidemic, it is necessary to analyze the personnel flow to determine the transmission of the epidemic, and to investigate the personnel to find out the infected personnel who have been infected and the potential personnel who may be infected, so as to provide a basis for taking effective epidemic control measures. The current personnel investigation is usually to first determine the places and corresponding times visited by the infected personnel, and then further determine the personnel who visited the place at the same time, so as to determine the potential infected personnel who have intersection with the infected personnel in time and space. However, such investigation method considers the place as a whole and does not consider the specific situation of the personnel inside the place (such as a building), if the infected personnel has visited a building, then the whole building is simply regarded as a dangerous area and all personnel who visit the building at the same time as the infected personnel are regarded as potential infected personnel. The processing method here may unnecessarily expand the range of potential infected personnel by regarding non-potential infected personnel as potential infected personnel (such as a building with two groups of elevators set in relatively distant parts of the building, the two groups of elevators correspond to relatively fixed passengers, and the passengers corresponding to the two groups of elevators have no business dealings with each other (such as for some buildings with hotel rooms set in the front part of the building and office rooms set in the rear part of the building), if the whole building is controlled, the control range will be unnecessarily expanded); on the other hand, if the potential infected personnel and the infected personnel have close contact due to business relationship and have visited other personnel in another building, the existing investigation method may ignore this situation. Obviously, if the relevant information of the relevant personnel in the building can be fully utilized, the accuracy of the personnel investigation can be significantly improved.

[0003] Publication document 1 (CN202010194143.6) aims to control the elevator to stop running when a suspected case in home isolation wants to go out, and uses the property management terminal to inform the relevant personnel to arrive at the elevator area to prevent the suspected case from going out; this document is aimed at the isolation control of the suspected case, and does not involve how to use the elevator data to determine the possible infectious personnel problem. Publication document 2 (CN201980098520.1) proposes that when the call signal from the landing is registered, if the image captured by the camera arranged at the landing identifies that the fever passenger and the non-fever passenger appear at the landing at the same time, the elevator is controlled to directly reach the destination floor of the fever passenger and the inside of the elevator car is disinfected; this scheme has the following shortcomings: 1) the direct control and disinfection operation is only performed when the fever passenger and the non-fever passenger exist at the landing at the same time, in fact, as long as the fever passenger is detected, these controls and operations should be performed; 2) the distance between the fever passenger and the non-fever passenger when waiting for the elevator at the landing and at the same time in the car is not considered; 3) the duration and protection condition of the fever passenger and the non-fever passenger at the same time in the car are not considered; 4) when the destination floor of the non-fever passenger is earlier than that of the fever passenger, it is improper to control the elevator to directly reach the destination floor of the fever passenger.

[0004] Therefore, how to use the relevant information of the relevant personnel in the building, especially the elevator data of the passengers taking the elevator, to realize the accurate investigation of the personnel has become a technical problem to be solved. SUMMARY

[0005] To solve the above technical problems, the present application provides an elevator passenger elevator data processing system, comprising:

[0006] A passenger elevator data acquisition unit is configured to acquire elevator data of at least one suspected case passenger and at least one other passenger;

[0007] An infection factor calculation unit is configured to calculate an infection factor using the elevator data, wherein the infection factor includes a travel trajectory of the passenger and a corresponding time span;

[0008] An infection risk judgment unit is configured to determine that the other passenger has an infection risk when the infection factors of the other passenger and the suspected case passenger have an intersection.

[0009] Preferably, the intersection includes that at least part of the travel trajectories of the other passenger and the suspected case passenger are located within the range of the same elevator, and the part of the travel trajectories located within the range of the same elevator corresponds to the same time span part.

[0010] Preferably, the intersection includes that the minimum value of the distance between the travel trajectories of the other passengers and the suspected case passenger corresponding to the overlapping part of the time span is less than a preset distance threshold, or at least the distance is less than the preset distance threshold.

[0011] Preferably, the preset distance threshold is N, the infection risk is divided into N levels, and N is a positive integer greater than 1. Each different preset distance threshold corresponds to a different infection risk level.

[0012] Preferably, the intersection further includes that the duration of the intersection part of the travel trajectory and the time span of the other passengers and the suspected case passenger is greater than a preset time span threshold.

[0013] Preferably, the elevator data further includes operation data of the passengers on the elevator public equipment; and the infection elements are the travel trajectory of the passengers, the contact record of the passengers on the elevator public equipment, and the corresponding contact time.

[0014] Preferably, the intersection means that the travel trajectories of the other passengers and the suspected case passenger have a part overlapping the same elevator and have a record of contacting the same elevator public equipment, and the suspected case passenger contacts first and the other passengers contact later.

[0015] Preferably, the infection elements further include the time of the passengers staying in the car and the protective measures of the passengers; and the intersection further includes that the travel trajectories of the other passengers and the suspected case passenger further include that the time of the passengers staying in the car exceeds a threshold and / or the protective measures of the passengers are incomplete.

[0016] Preferably, the intersection means that the travel trajectories of the other passengers and the suspected case passenger overlap the same elevator car, the time span of the suspected case passenger is in front and the time span of the other passengers is in back, and the interval between the time spans is less than a preset time threshold.

[0017] Preferably, the trajectory and the corresponding time span are divided into three stages; the first stage is a registration waiting stage, the second stage is a taking elevator stage, and the third stage is a leaving elevator stage.

[0018] Preferably, when the infection risk judgment unit judges that the other passengers have an infection risk in the first stage, the infection risk judgment unit generates first warning information to inform the passengers.

[0019] Preferably, when the infection risk judgment unit judges that the other passengers have an infection risk in the second stage, the infection risk judgment unit determines the control instruction according to the distance of the suspected case passenger and the other passengers from the destination floor or the order of arriving at the destination floor.

[0020] Preferably, when the destination floor of the suspected case passenger is reached first, the control instruction is to control the elevator to the destination floor of the suspected case passenger, and continue the subsequent travel after the suspected case passenger leaves the car.

[0021] Preferably, when the destination floor of the other passengers is reached first, the control instruction is to prompt all other passengers to leave the elevator at the destination floor of the first-arrived other passenger, and then send the suspected case passenger to his destination floor.

[0022] Preferably, when the destination floor of the suspected case passenger is reached first, and the required travel time exceeds the preset safety time threshold, the control instruction is to control the elevator to the destination floor of the suspected case passenger, and prompt all other passengers to leave the car and take other elevators when reaching the destination floor of the suspected case passenger.

[0023] Preferably, after deciding the control instruction, the infection risk judgment unit generates the second warning information to inform the passengers.

[0024] Preferably, when the infection risk judgment unit judges that the other passengers have an infection risk in the third stage, the infection risk judgment unit generates the third warning information to inform the passengers.

[0025] Preferably, the elevator passenger boarding data processing system further comprises a display unit for displaying the warning information; the warning information includes the first warning information, the second warning information or the third warning information; the display unit is arranged at a location including a waiting hall, inside the car or a mobile terminal of the passenger.

[0026] Preferably, the warning information includes one or more of the following contents: content one, the moving track of the other passengers with infection risk and the suspected case passenger at the departure floor; content two, the moving direction or the end point of the moving track; content three, the influencing factor of the infection risk;

[0027] Preferably, the warning information is displayed in a three-dimensional display mode.

[0028] Preferably, the elevators on which the suspected case passengers board are located in different buildings respectively, the number of buildings is M, M is a positive integer greater than 1; the track formation and the corresponding time span are divided into M stages, each stage corresponds to a different building; the infection risk judgment unit judges whether the other passengers have an infection risk according to each stage respectively.

[0029] Compared with the prior art, the technical scheme of the present application can more accurately identify the infection risk of other passengers when a suspected case passenger appears, and narrow the scope of investigation. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1A schematic diagram of an elevator passenger boarding data processing system of the present application. DETAILED DESCRIPTION

[0031] Other advantages and benefits of the present application will be apparent to those skilled in the art upon consideration of the disclosure herein. The following description is presented by way of specific embodiments and should not be taken as limiting the present application. Specific details are presented for the purpose of fully and adequately disclosing the present application. However, the present application can be practiced without these specific details. Various modifications and variations can be made in the detail of the present application by those skilled in the art without departing from the spirit or scope of the present application.

[0032] Embodiment 1

[0033] As shown in the figure, the elevator passenger boarding data processing system of the present embodiment comprises: Figure 1

[0034] a passenger boarding data acquisition unit for acquiring boarding data of at least one suspected case passenger and at least one other passenger; a factor calculation unit for calculating infection factors from the boarding data, the infection factors including a passenger's travel trajectory and corresponding time span; and an infection risk judgment unit for determining whether the other passenger is at risk of infection when the infection factors of the suspected case passenger and the other passenger have an intersection.

[0035] The intersection includes at least part of the travel trajectory of the other passenger and the suspected case passenger being located within the range of the same elevator, and the part of the travel trajectory located within the range of the same elevator corresponding to the same time span.

[0036] ​The boarding data can be generated by sensors or elevator-related systems and provided to the system, or can be historical data stored in a storage unit. The boarding data processing system of the embodiment divides the boarding process of the passenger into three stages: stage one, the registration waiting stage, stage two, the stage of moving with the elevator car after entering the car to the destination floor (boarding stage), and stage three, the stage of entering the landing after the passenger leaves the elevator car (leaving elevator stage). The boarding data includes the departure floor, the destination floor, the entering time of the passenger entering the car, the leaving time of the passenger leaving the car at the destination floor, or the arrival time of the passenger arriving at the departure floor. When there are multiple elevators, the elevator number of the elevator taken by the passenger is also included. In this way, the travel trajectory of the passenger from entering the car (arriving at the departure floor when the arrival time is detected) to the destination floor and the corresponding time span can be established using the boarding data. The starting point of the travel trajectory is the landing door of the assigned elevator at the departure floor landing (when the arrival time and position of the passenger at the departure floor can be detected, the moving trajectory of the passenger from the arrival floor to the landing door of the assigned elevator is also included), the middle is the shaft from the departure floor to the destination floor, and the end is the landing door of the assigned elevator at the destination floor (when the movement of the passenger at the destination floor can be detected, the end of the moving trajectory of the passenger at the destination floor should also be included, such as using a camera installed at the landing). The time span is the time corresponding to the starting point of the moving trajectory (such as the arrival time) and the time corresponding to the end point of the moving trajectory (such as the leaving time). In this way, after obtaining the moving trajectory and the corresponding time span of the suspected case passenger and other passengers, the other passengers who intersect with the moving trajectory and time span of the suspected case passenger are regarded as possible infected passengers. Of course, in actual implementation, the three stages can be implemented separately, i.e., in stages, the moving trajectory and the corresponding time span are established for each stage, and then it is determined whether there is an intersection.

[0037] Preferably, the existence of the intersection further includes that the length of the intersection part of the travel trajectory and the time span of the other passenger and the suspected case passenger is greater than a preset time span threshold.

[0038] Embodiment 2

[0039] The embodiment adds a distance condition based on embodiment 1, and the other parts are the same as embodiment 1.

[0040] The existence of the intersection includes that the minimum value of the distance between the travel trajectories corresponding to the time span overlap part of the other passenger and the suspected case passenger is less than a preset distance threshold, or at least there is a distance less than the preset distance threshold.

[0041] Preferably, the preset distance threshold is N, the infection risk is divided into N levels, and N is a positive integer greater than 1. Each different preset distance threshold corresponds to a different infection risk level.

[0042] Based on the fact that the closer to the suspected case passenger, the higher the possibility of infection of other passengers, for other passengers who have time and space intersection with the suspected case passenger, the possibility of infection is divided into several levels according to the distance between the suspected case passenger and the other passengers. In this way, the output result of the system is not only the possible suspected case, but also the level of the possibility of infection of the possible suspected case, so as to provide more accurate information.

[0043] Embodiment 3

[0044] In this embodiment, the system determines whether the passenger is a possible infected passenger according to the contact of the suspected case passenger with the public equipment (elevator equipment that other passengers may contact during the process of taking the elevator) during the process of taking the elevator, specifically:

[0045] The elevator data further includes operation data of the passenger on the elevator public equipment; the infection element is the travel trajectory of the passenger, the contact record of the passenger on the elevator public equipment, and the corresponding contact time.

[0046] The intersection means that the travel trajectory of the other passenger and the suspected case passenger has a part of overlap in the same elevator and has a record of contacting the same elevator public equipment, and the suspected case passenger contacts in advance and the other passenger contacts later.

[0047] Here, the public equipment includes at least one of all possible equipment that the passenger may contact during the process of taking the elevator, such as: registration device on the landing (such as: destination floor level device, up and down registration device, etc.), destination floor registration device in the car, other buttons (such as door opening and closing button, alarm button, etc.), and car wall, landing wall, landing door, car door, etc. For the determination of the operation of the passenger on the public equipment, it is necessary to determine the relevant data that can be used to determine whether the passenger has operated it according to the function and attribute of the public equipment, such as: for the registration device on the landing, it can be determined according to the registration method of the passenger when registering (such as whether the passenger uses a personal mobile terminal, the registration information of the destination floor registration device (determine the button operated)), and the contact of the passenger on the car wall, landing wall, landing door, car door, etc. can be determined according to the image obtained by the camera in the car or on the landing.

[0048] In addition to determining whether the same public equipment has been operated, the order of operation of the public equipment by other passengers and the suspected case passenger also needs to be considered, because only when the operation of other passengers is later than that of the suspected case passenger, the other passengers can be infected.

[0049] Therefore, for the elevator data, the earliest time when the suspected case passenger first visits the building where the elevator is located and takes the elevator needs to be determined, and then the elevator data after the earliest time is used for relevant analysis.

[0050] Embodiment 4

[0051] The embodiment is further increased with the following technical features on the basis of any of the preceding embodiments:

[0052] The infection elements also include the time when the passenger stays in the car and the protective measures of the passenger;

[0053] The intersection also includes that the travel trajectories of other passengers and the suspected case passenger include that the time when the passenger stays in the car exceeds a threshold value and / or the protective measures of the passenger are incomplete (such as whether the mask is always worn correctly).

[0054] In fact, when judging, the distance, the stay time, the protective measure situation, and the operation situation of the public equipment can be considered comprehensively, then a sub-evaluation index is determined for the specific situation of each element corresponding to other passengers and the suspected case passenger, then a final evaluation index is obtained by appropriately processing (such as weighted summation) the obtained sub-evaluation indexes, and finally the final evaluation index is used to evaluate the possibility of infection of non-suspected case passengers.

[0055] Embodiment 5

[0056] On the basis of embodiment 1, the intersection can also be represented as: the travel trajectories of other passengers and the suspected case passenger coincide in the same elevator car, the time span of the suspected case passenger is in front, the time span of other passengers is in back, and the interval between the time spans is less than a preset time threshold.

[0057] Considering the characteristics of the special vertical transportation tool, the air inside the elevator car and / or the public equipment of the elevator can be contaminated by the suspected case passenger after the suspected case passenger takes the elevator, so even if other passengers only have spatial intersection with the suspected case passenger but no time intersection, as long as the suspected case passenger takes the elevator, other passengers will still have the risk of being infected when they take the elevator. Therefore, in this case, other passengers should still be considered as possible infected passengers, unless the preset time threshold is exceeded.

[0058] Embodiment 6

[0059] The trajectory and corresponding time span are divided into three stages: a first stage of registering the elevator, a second stage of taking the elevator, and a third stage of leaving the elevator, as described in the corresponding description of Embodiment 1.

[0060] When the taking elevator data is real-time data, the control instruction is generated and sent to the elevator control system in the following manner:

[0061] When, in the first stage, the infection risk judgment unit determines that the other passengers have an infection risk, the infection risk judgment unit generates first warning information to inform the passengers. The informing manner is, for example, audio and video, sending to the mobile terminal of the passenger, etc.

[0062] When, in the second stage, the infection risk judgment unit determines that the other passengers have an infection risk, the infection risk judgment unit determines the control instruction according to the distance of the suspected case passenger and the other passengers from the destination floor or the order of arrival at the destination floor.

[0063] When the suspected case passenger's destination floor is reached first, the control instruction is to control the elevator to the suspected case passenger's destination floor, and continue the subsequent travel after the suspected case passenger leaves the car.

[0064] When the other passenger's destination floor is reached first, the control instruction is to prompt all other passengers to leave the elevator at the destination floor of the first-arriving other passenger, and then send the suspected case passenger to his destination floor.

[0065] When the suspected case passenger's destination floor is reached first, and the required travel time exceeds the preset safety time threshold, the control instruction is to control the elevator to the suspected case passenger's destination floor, and when the suspected case passenger's destination floor is reached, prompt all other passengers to leave the car and take other elevators.

[0066] After determining the control instruction, the infection risk judgment unit generates second warning information to inform the passengers, such as prompting not to touch, to keep good personal protection, etc.

[0067] When, in the third stage, the infection risk judgment unit determines that the other passengers have an infection risk, the infection risk judgment unit generates third warning information to inform the passengers, such as prompting the other passengers to keep a proper distance from the suspected case passenger, etc.

[0068] Embodiment 7

[0069] On the basis of the foregoing embodiment, the elevator passenger boarding data processing system of the present embodiment further comprises a display unit for displaying alert information; the alert information comprises the first alert information, the second alert information or the third alert information; the display position of the display unit comprises a hall, an elevator car or a passenger's mobile terminal.

[0070] The alert information comprises one or more of the following: content one, the moving track of the other passengers and the suspected case passengers at the departure floor; content two, the moving direction or the end point of the moving track; content three, the influencing factors of the infection risk;

[0071] A display mode, for example, a static planar display mode;

[0072] In the departure floor station part, the layout result is displayed in the horizontal direction angle of the station. When there are other passengers and suspected case passengers at the same time, the moving track of the other passengers and the suspected case passengers at the departure floor station is marked on the plan, or the moving direction and / or the end point of the moving track is also displayed (corresponding to embodiment one). In order to provide more abundant information, the actual values of the influencing factors (such as distance, time, protective measures, touching public equipment, etc.) of the other passengers being determined as possible infected passengers can also be further displayed. The display mode of these information: when the mouse moves to the mark of the other passengers, these information is automatically displayed. The mark here can be a symbol, or the ID information (such as the room number in the building) of the passengers, a face image, etc.

[0073] When the other passengers and the suspected case passengers are displayed at the same time, they are presented in different display effects (such as brightness, color, etc.). The elevator car interior part and the destination floor station part are similar to the foregoing departure floor station part, which will not be described here. Of course, the summary information of the possible infected passengers (the distribution of the possible infected passengers at each floor, the corresponding number of grades) can also be provided in each part.

[0074] Another display mode, for example, a static three-dimensional display mode:

[0075] The three parts are displayed in a three-dimensional manner respectively, that is, a three-dimensional model is established for the departure floor station, the elevator car interior and the destination floor station respectively, and the marks of the other passengers and the suspected case passengers in the three-dimensional model are displayed in the three-dimensional model. Or the images taken by the cameras in the three scenes are directly presented, and the display of the remaining information of the passengers is the same as in the plan.

[0076] Another display mode, for example, a dynamic display mode:

[0077] First, a whole three-dimensional model from the departure floor to the farthest destination floor including the shafts therebetween is established, or a whole three-dimensional model of the building is directly established (the focus is on the various landings and shafts), and then the movements of other passengers and suspected case passengers are displayed in the model in chronological order. The rest is the same as in the planar display. This presentation is preferred.

[0078] Embodiment 8

[0079] The foregoing embodiments are directed to the elevator passenger boarding data of a single building, and this embodiment is directed to the elevator passenger boarding data of multiple elevators in multiple buildings.

[0080] The elevators on which the suspected case passengers ride are respectively located in different buildings, the number of buildings is M, and M is a positive integer greater than 1;

[0081] The formation of the trajectory and the corresponding time span is divided into M stages, each stage corresponding to a different building;

[0082] The infection risk judgment unit respectively judges whether the other passengers exist an infection risk according to each stage.

[0083] At present, most elevators are equipped with remote monitoring systems, and various data on the spot can be uploaded to the remote monitoring center, relevant government management departments, etc. through the network, which provides the possibility for the overall processing and analysis of elevator passenger boarding data of multiple elevators in different buildings. On the other hand, people's activities are usually moving between different buildings, so the elevator passenger boarding data (mainly the boarding activities of passengers with 1st floor as the destination floor or departure floor) and the corresponding time can be used to easily identify passengers who have left building A and arrived at building B.

[0084] Specifically, the following methods can be adopted:

[0085] Step 1, select a selected elevator passenger;

[0086] Step 2, select the entry and exit time of the passenger from 1st floor (mainly the floor corresponding to the entrance of the building) into the car or out of the car from all data;

[0087] Step 3, sort the entry and exit time in chronological order;

[0088] Step 4, get the building sorting result corresponding to the entry and exit time according to the sorting result.

[0089] The sorted buildings are the movement trajectories of the passenger between different buildings, and the corresponding time is the entry and exit time of the passenger entering and exiting the building.

[0090] Of course, in order to eliminate some special cases that may cause errors, such as: passengers in the same building in a certain floor and 1 times between the multiple back and forth, according to the above steps may appear error analysis results, for this, need to add the following steps between step 3 and step 4:

[0091] Step A1, judge the order of a certain time, the time and the adjacent time group, then is a time group corresponding to the departure time of a building and the entering time of another building, if not, the data is wrong, then delete the data; Or

[0092] Step B1, for the sorted time, find out the continuous time data corresponding to the same building (not containing the time data corresponding to another building in between), delete the intermediate time and only keep the earliest time and the latest time, and use the remaining time to form a new sorted time.

[0093] The above method can be used to obtain the moving trajectory of the passenger between different buildings and the corresponding time, and the method in the background art can be used to analyze the suspected case passengers and the possible infected passengers.

[0094] The embodiment essentially provides a new data acquisition means and method and a corresponding processing method.

[0095] The above detailed description of the present application is made through specific embodiments and examples, but these do not constitute a limitation on the present application. Those skilled in the art can also make many modifications and improvements without departing from the principles of the present application, and these should be considered as the protection scope of the present application.

Claims

1. An elevator passenger data processing system, characterized in that, include: The passenger elevator data acquisition unit is used to acquire elevator data of at least one suspected case passenger and at least one other passenger; The element calculation unit is used to calculate infection elements using the elevator data, the infection elements including the passenger's travel trajectory and the corresponding time span; The infection risk assessment unit determines that other passengers pose an infection risk when there is an overlap between the infection elements described in the infection elements of other passengers and passengers suspected of having the infection. The journey trajectory and its corresponding time span are divided into three stages; The first stage is the registration and waiting stage, the second stage is the elevator riding stage, and the third stage is the exiting elevator stage. When the infection risk assessment unit determines that other passengers pose an infection risk in the second stage, the infection risk assessment unit determines the control instructions based on the distance of the suspected case passenger and other passengers from the destination floor or the order in which they arrive at the destination floor. When the elevator reaches the destination floor of the suspected case passenger first, the control instruction is to control the elevator to move to the destination floor of the suspected case passenger, and continue the subsequent movement after the suspected case passenger leaves the car; Alternatively, when the elevator reaches the destination floor of other passengers first, the control instruction is to prompt all other passengers to leave the elevator at the destination floor of the first passenger to arrive, and then send the suspected case passenger to their destination floor. Alternatively, if the elevator reaches the destination floor of the suspected case passenger first, and the required travel time exceeds the preset safe time threshold, the control instruction is to control the elevator to travel to the destination floor of the suspected case passenger, and after reaching the destination floor of the suspected case passenger, prompt all other passengers to leave the car and take other elevators.

2. The elevator passenger data processing system as described in claim 1, characterized in that, The intersection includes the fact that at least part of the travel trajectories of other passengers and suspected case passengers are located within the same elevator, and the part of the travel trajectories located within the same elevator corresponds to the same time span.

3. The elevator passenger data processing system as described in claim 1, characterized in that, The existence of intersection includes the fact that the minimum distance between the travel trajectories of other passengers and suspected case passengers corresponding to the overlapping time span is less than a preset distance threshold, or at least there is a distance less than the preset distance threshold.

4. The elevator passenger data processing system as described in claim 3, characterized in that, The preset distance thresholds are N, and the infection risk is divided into N levels, where N is a positive integer greater than 1. Each different preset distance threshold corresponds to a different infection risk level.

5. The elevator passenger data processing system as described in claim 2 or 3, characterized in that, The intersection also includes the fact that the duration of the intersection of the travel trajectories and time spans of other passengers and suspected case passengers is greater than a preset time span threshold.

6. The elevator passenger data processing system as described in claim 1, characterized in that, The elevator data also includes passenger operation data of elevator public equipment; the infection elements are passenger travel trajectory, passenger contact records of elevator public equipment and corresponding contact times.

7. The elevator passenger data processing system as described in claim 6, characterized in that, The existence of overlap means that the travel trajectories of other passengers and suspected case passengers overlap in part with the same elevator and have records of contact with the same elevator public equipment, with the suspected case passenger contacting the equipment first and other passengers contacting it later.

8. The elevator passenger data processing system as described in claim 1, characterized in that, The infection factors also include the time passengers spend in the car and the protective measures taken by passengers; The overlap also includes the travel trajectories of other passengers and suspected case passengers, as well as the time passengers spend in the car exceeding a threshold and / or inadequate protective measures for passengers.

9. The elevator passenger data processing system as described in claim 1, characterized in that, The existence of intersection means that the travel trajectories of other passengers and the suspected case passenger overlap in the same elevator car, and the time span of the suspected case passenger is earlier than that of other passengers, and the interval between the time spans is less than a preset time threshold.

10. The elevator passenger data processing system as described in claim 1, characterized in that: When the infection risk assessment unit determines that other passengers pose an infection risk during the first stage, the infection risk assessment unit generates a first warning message to inform the passengers.

11. The elevator passenger data processing system as described in claim 1, characterized in that: Once the control command is issued, the infection risk assessment unit generates a second warning message to inform the passengers.

12. The elevator passenger data processing system as described in claim 1, characterized in that: When the infection risk assessment unit determines that other passengers pose an infection risk in the third stage, the infection risk assessment unit generates a third warning message to inform the passengers.

13. The elevator passenger data processing system as described in any one of claims 10-12, characterized in that: The elevator passenger data processing system also includes a display unit for displaying warning information; The warning information includes the first warning information, the second warning information, or the third warning information; The display unit can be located in the waiting hall, inside the elevator car, or on a passenger's mobile terminal.

14. The elevator passenger data processing system as described in claim 13, characterized in that: The warning message includes one or more of the following: Content 1: Movement trajectories of other passengers at risk of infection and passengers with suspected cases on the departure floor; Content 2: The direction or endpoint of the movement trajectory; Content 3: Factors influencing the risk of infection.

15. The elevator passenger data processing system as described in claim 13, characterized in that: The warning information is displayed in a three-dimensional manner.

16. The elevator passenger data processing system as described in claim 3, characterized in that: The elevators used by the suspected case passengers are located in different buildings, and the number of buildings is M, where M is a positive integer greater than 1; The travel trajectory and corresponding time span are divided into M stages, with each stage corresponding to a different building; The infection risk assessment unit determines whether other passengers pose an infection risk at each stage.

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