Transportation tool management method and system for rural tourism

Abstract

The invention discloses a transportation means management method for rural tourism, the method is executed by a positioning system located on a transportation means, and the method comprises the following steps: acquiring an image of a first roadside device through a camera; determining the number of the first roadside device based on the image of the first roadside device; monitoring a positioning message sent by a roadside device; determining whether to continue decoding the positioning message based on an operation trademark learning field of the positioning message; if it is determined to continue to decode the positioning message, the roadside device number field of the positioning message continues to be decoded. According to the invention, the accuracy and real-time performance of information pushing are effectively improved, the interference of invalid information is reduced, the driving safety is enhanced through a display strategy associated with the vehicle speed, and the guide and transportation management experience in rural tourism is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tourism, in particular to a transport tool management method and system for rural tourism. BACKGROUND

[0002] Rural tourism, as an important form of tourism, has been rapidly developing across the country in recent years, and it plays a positive role in promoting rural economic revitalization, cultural heritage, and ecological protection. With the popularization of information technology and the diversification of consumer demand, many rural tourism sites have introduced shared transport tool services without supervision. However, after collecting consumer feedback, it is found that consumers think that the use experience of shared transport tools is not good, and the main problems are: low positioning accuracy, which makes it easy for consumers to get lost; the distance between shared transport tool return points is far, and the identification of the return point location is not clear, which makes it difficult for consumers to return shared transport tools. The existing technology lacks solutions to these technical problems. SUMMARY

[0003] To achieve the above-mentioned purpose, the present application provides a transport tool management method for rural tourism, which is executed by a positioning system of a transport tool. The method first acquires and recognizes the number of a roadside device through a camera, and listens to and filters positioning messages of a specific operator; the validity of the roadside device is verified by comparing the number, and the corresponding positioning indication information is intelligently displayed to the user in combination with the real-time speed of the transport tool. The present application effectively improves the accuracy and real-time performance of information pushing, reduces the interference of invalid information, and enhances the driving safety through the display strategy associated with the vehicle speed, and improves the touring and transport management experience in rural tourism.

[0004] The present application provides a transport tool management method for rural tourism, which is executed by a positioning system located on a transport tool, and the method comprises:

[0005] acquiring an image of a first roadside device via a camera;

[0006] determining a number of the first roadside device based on the image of the first roadside device;

[0007] listening to a positioning message sent by the roadside device;

[0008] determining whether to continue decoding the positioning message based on an operator identification field of the positioning message;

[0009] if it is determined to continue decoding the positioning message, then continue decoding a roadside device number field of the positioning message.

[0010] In one preferred embodiment, the method further comprises:

[0011] determining whether the first roadside device is a valid roadside device based on a roadside device number field of the positioning message;

[0012] if it is determined that the first roadside device is a valid roadside device, displaying on the display device content indicated by a positioning indication field of the positioning message.

[0013] In one preferred embodiment, determining whether the first roadside device is a valid roadside device based on a roadside device number field of the positioning message comprises:

[0014] determining a number of a roadside device that sent the positioning message based on the roadside device number field;

[0015] determining whether the number of the roadside device that sent the positioning message is the same as the number of the first roadside device;

[0016] if it is determined that the number of the roadside device that sent the positioning message is the same as the number of the first roadside device, determining that the first roadside device is a valid roadside device.

[0017] In one preferred embodiment, before displaying on the display device content indicated by the positioning indication field, the method further comprises:

[0018] determining whether the content indicated by the positioning indication field belongs to a first type of content or a second type of content;

[0019] if it is determined that the content indicated by the positioning indication field belongs to the first type of content, displaying on the display device the content indicated by the positioning indication field;

[0020] if it is determined that the content indicated by the positioning indication field belongs to the second type of content, continuing determining a speed of the transport vehicle;

[0021] if it is determined that the speed of the transport vehicle is below a threshold speed, displaying on the display device the content indicated by the positioning indication field;

[0022] if it is determined that the speed of the transport vehicle is above the threshold speed, not displaying on the display device the content indicated by the positioning indication field.

[0023] In one preferred embodiment, the method further comprises:

[0024] after determining the number of the first roadside device, determining whether a number of a second roadside device is stored in the memory;

[0025] if it is determined that the number of the second roadside device is stored in the memory, deleting the number of the second roadside device and storing the number of the first roadside device.

[0026] In one preferred embodiment, the method further comprises:

[0027] After determining that the first roadside device is a valid roadside device, a distance between the transportation tool and the first roadside device is determined based on a speed of the transportation tool;

[0028] If the positioning system does not identify another valid landmark device again before the distance exceeds the threshold distance, a return prompt is displayed on the display device.

[0029] The present application provides a transportation tool management system for rural tourism, the system comprising a positioning system located on a transportation tool, the positioning system being configured to:

[0030] An image of the first roadside device is acquired via a camera;

[0031] A number of the first roadside device is determined based on the image of the first roadside device;

[0032] A positioning message sent by a roadside device is listened to;

[0033] Whether to continue decoding the positioning message is determined based on an operator identification field of the positioning message;

[0034] If it is determined to continue decoding the positioning message, a roadside device number field of the positioning message is continued to be decoded.

[0035] In a preferred embodiment, the positioning system is further configured to:

[0036] Whether the first roadside device is a valid roadside device is determined based on a roadside device number field of the positioning message;

[0037] If it is determined that the first roadside device is a valid roadside device, content indicated by a positioning indication field of the positioning message is displayed on the display device.

[0038] In a preferred embodiment, determining whether the first roadside device is a valid roadside device based on the roadside device number field of the positioning message comprises:

[0039] A number of the roadside device sending the positioning message is determined based on the roadside device number field;

[0040] Whether the number of the roadside device sending the positioning message is the same as the number of the first roadside device is determined;

[0041] If it is determined that the number of the roadside device sending the positioning message is the same as the number of the first roadside device, it is determined that the first roadside device is a valid roadside device.

[0042] In a preferred embodiment, before displaying the content indicated by the positioning indication field on the display device, the positioning system is further configured to:

[0043] determine whether the content indicated by the positioning indication field belongs to the first type of content or the second type of content;

[0044] if it is determined that the content indicated by the positioning indication field belongs to the first type of content, display the content indicated by the positioning indication field on the display device;

[0045] if it is determined that the content indicated by the positioning indication field belongs to the second type of content, continue to determine the speed of the transport tool;

[0046] if it is determined that the speed of the transport tool is lower than the threshold speed, display the content indicated by the positioning indication field on the display device;

[0047] if it is determined that the speed of the transport tool is higher than the threshold speed, do not display the content indicated by the positioning indication field on the display device.

[0048] Compared with the prior art, the present application has the following advantages: the present application effectively improves the accuracy and real-time performance of information pushing, reduces the interference of invalid information, and enhances the driving safety through the display strategy associated with the vehicle speed, thereby improving the guiding and transportation management experience in rural tourism. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 is a logical block diagram of a positioning system of an embodiment of the present application.

[0050] Figure 2 is a flowchart of a method of an embodiment of the present application.

[0051] Figure 3 is a schematic diagram of an image acquired by a camera of an embodiment of the present application.

[0052] Figure 4 is a format schematic diagram of a positioning message of an embodiment of the present application. DETAILED DESCRIPTION

[0053] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings, but it should be understood that the scope of protection of the present application is not limited by the specific embodiments.

[0054] As mentioned above, the main problems of current consumer feedback are: 1. Low positioning accuracy leads to consumers easily getting lost; 2. The distance between shared transportation tool return points is far, and the identification of the return point position is not clear, which makes it difficult for consumers to return shared transportation tools. After analysis, the main cause of the first problem is that the mainstream navigation software does not store the internal road information of the village, so when the consumer drives the transportation tool inside the village or between several natural villages, the mainstream navigation software cannot give accurate navigation suggestions. For example, sometimes the navigation software may require the consumer to go straight, but the consumer finds that there is no road in front, or the navigation software requires the consumer to turn right, but the consumer finds that the right side is farmland. A direct method to solve this technical problem is for the authorities leading rural tourism to provide accurate map information to navigation software vendors, so that navigation software vendors can update the map information, but currently navigation software vendors are all large Internet companies with huge scale, and it may be difficult to coordinate with these companies to update the map information. Another method is for the authorities leading rural tourism to design a navigation system specifically for the villages in their jurisdiction, but this solution is obviously too costly and technically difficult, and the grassroots authorities lack sufficient technical reserves to implement this solution. For the second problem, the cause is still that in the rural environment, the mainstream navigation software cannot provide accurate navigation services. For example, users cannot search for nearby shared transportation tool return points in the navigation software, or even if users search for nearby shared transportation tool return points, they cannot determine whether the return point is the nearest return point or whether the return point is a valid return point (for example, the return point displayed in the navigation software has actually been canceled, but due to information updates not being timely, the return point is still apparently available on the navigation software); Finally, even if the two aforementioned problems are overcome, it is still not possible to ensure that the navigation software can provide accurate navigation suggestions. Solving the problem of returning shared transportation tools can also follow the ideas proposed above, but these existing solutions all have significant and difficult-to-overcome obstacles. The present application aims to propose a solution with lower cost and lower deployment difficulty to solve the aforementioned technical problems.

[0055] Figure 1 A logic block diagram of a positioning system of an embodiment of the present application. The positioning system of the present application includes a camera, a decoding unit, a display device, a memory, a speed determination unit, and a distance determination unit. Among them, the decoding unit, the speed determination unit, and the distance determination unit can be software codes for performing related operations, and the decoding unit, the speed determination unit, and the distance determination unit can also be firmware or FPGA for performing related operations.

[0056] Embodiment 1

[0057] Figure 2is a method flowchart of an embodiment of the present application. As shown in the figure, the method of the present application comprises:

[0058] Step 1: acquire the image of the first roadside device via the camera; in the present application, the transportation tool can be any transportation tool suitable for providing a function of providing a ride on a rural road, such as a human-powered bicycle, an electric bicycle, a human-powered tricycle, an electric tricycle, an all-terrain vehicle, etc.; in an example, the road image acquired by the camera can refer to Figure 3 As shown in Figure 3 , the transportation tool is driving on a rural road, and since the road is a self-built road in the village, there is a lack of detailed information of the road on mainstream navigation software. The front-view camera of the transportation tool can capture the image in front of the transportation tool during the driving of the transportation tool. In Figure 3 the image, there are three roadside devices, which are three roadside devices numbered “051”, “061” and “071”; at this time, the transportation tool can first determine the roadside device numbered “051” as the closest roadside device to the transportation tool by the size relationship of the roadside devices in the image, and at this time, the transportation tool acquires the number of the closest roadside device to the transportation tool by using a known machine vision algorithm;

[0059] Step 2: determine the number of the first roadside device based on the image of the first roadside device;

[0060] Step 3: listen to the positioning message sent by the roadside device; in an example, low-cost Bluetooth communication can be used between the roadside device and the transportation tool; in an example, the format of the positioning message can refer to Figure 4 As shown in Figure 4 , the payload part of the positioning message of the present application at least includes an operator identification field, a roadside device number field and a positioning indication field;

[0061] Step 4: determining whether to continue decoding the positioning message based on the operator identification field of the positioning message; in one example, for example in the peak season of tourism, some villages may need to accommodate a large number of tourists, at this time, the local area may need multiple operators to undertake the project of shared transportation tools, in general, different operators operate different return points of shared transportation tools (of course, the return point is also the rental point of the shared transportation tool), therefore, the content of the positioning indication field in the positioning message sent by the roadside device of different operators is also different; therefore, it is desirable to require the transportation tool to only decode the positioning message sent by its own operator; in one example, the transportation tool being used by the consumer is a transportation tool affiliated to company A, since the coverage range of Bluetooth communication can reach about 100 meters, the transportation tool may listen to the positioning messages sent by three roadside devices numbered "051", "061" and "071", and the roadside devices numbered "051" and "071" are roadside devices affiliated to company A, and the roadside device numbered "061" is a roadside device affiliated to company B, then the transportation tool can determine that the positioning message sent by the roadside device numbered "061" is sent by the roadside device of company B after decoding the operator identification field of the positioning message, and further determine not to continue decoding the positioning message; it can be understood that step 4 can be performed by the decoding unit in Figure 1 ;

[0062] Step 5: if it is determined to continue decoding the positioning message, then continue decoding the roadside device number field of the positioning message.

[0063] Embodiment 2

[0064] In embodiment 2, the method further comprises:

[0065] determining whether the first roadside device is a valid roadside device based on a roadside device number field of the positioning message; one basic principle of the present application is that the roadside devices relay sending the positioning message to the transport tool, so as to ensure that the consumer does not get lost as much as possible; specifically, the present application requires the operator to set multiple roadside devices between two return points, and the distance between each two roadside devices is not too far (after setting, if the transport tool deviates from the predetermined path, the transport tool can quickly determine that the consumer deviates from the predetermined path based on the fact that the roadside device cannot be captured, at this time, the transport tool can remind the consumer of the fact that the consumer deviates from the predetermined path, at this time, since the transport tool reminds the consumer at an earlier time, the distance of the consumer deviating from the predetermined path is not too far, and the consumer can return to the original path by relying on his own memory, which maximally reduces the risk of the consumer getting lost); the content of the positioning indication field sent by each roadside device to the transport tool is to guide the consumer to drive to the next roadside device, and the consumer can basically successfully find the next roadside device by driving the transport tool according to the content of the positioning indication field, thereby completing the transport tool navigation based on "relay", this navigation does not need the assistance of satellite positioning, and does not need the participation of the cellular network, and the method of the present application is especially suitable for use in rural areas lacking detailed maps and network coverage;

[0066] If it is determined that the first roadside device is a valid roadside device, displaying the content indicated by the positioning indication field of the positioning message on the display device.

[0067] Embodiment 3

[0068] In embodiment 3, determining whether the first roadside device is a valid roadside device based on a roadside device number field of the positioning message includes:

[0069] Determining the number of the roadside device sending the positioning message based on the roadside device number field;

[0070] Determining whether the number of the roadside device sending the positioning message is the same as the number of the first roadside device; since the method of the present application is a relay-based method, the present application requires the transport tool to use only the positioning message sent by the closest roadside device to the transport tool to indicate the moving direction of the consumer; continuing to use the example introduced above, in Figure 3In one example, the roadside device numbered "051" is closest to the transport tool, and the transport tool can receive the positioning message sent by both the roadside device numbered "051" and the roadside device numbered "071", at this time, the transport tool can parse the roadside device number field of the two positioning messages, the transport tool will determine that the two positioning messages are sent by the roadside device numbered "051" and the roadside device numbered "071" respectively; next, the transport tool has determined that the number of the roadside device closest to itself is "051" based on machine vision, at this time the transport tool will determine that the roadside device numbered "051" is a valid roadside device, and the roadside device numbered "071" is not a valid roadside device.

[0071] If it is determined that the number of the roadside device sending the positioning message is the same as the number of the first roadside device, it is determined that the first roadside device is a valid roadside device.

[0072] Embodiment 4

[0073] In embodiment 4, before displaying the content indicated by the positioning indication field on the display device, the method further comprises:

[0074] Determining whether the content indicated by the positioning indication field belongs to the first type of content or the second type of content;

[0075] If it is determined that the content indicated by the positioning indication field belongs to the first type of content, displaying the content indicated by the positioning indication field on the display device; in one example, the first type of content is content in which the navigation content does not include a turn, for example, if the navigation content is "go straight for 50 meters", such navigation content can be determined as the first type of navigation content, at this time the navigation content of this type can be directly displayed;

[0076] If it is determined that the content indicated by the positioning indication field belongs to the second type of content, continue to determine the speed of the transport tool; in one example, the second type of content is content in which the navigation content includes a turn, for example, if the navigation content is "turn right at the intersection 10 meters ahead", such navigation content can be determined as the second type of navigation content; as a consumer, although there is a fork 10 meters ahead, the consumer may not reduce the speed of the transport tool due to not seeing the fork or for some reason wanting to continue straight at the intersection, at this time if the transport tool displays a turn prompt, the consumer may suddenly brake, which can cause other traffic tools behind to collide with the transport tool, in addition, the consumer may suddenly notice the fork after seeing the navigation content, at this time the consumer may forget to slow down due to tension and turn at high speed, which can also cause danger; therefore, in embodiment 4, the transport tool further judges whether to display the second type of content to the display device based on the current speed of the transport tool;

[0077] If it is determined that the speed of the transportation tool is lower than the threshold speed, the content indicated by the positioning indication field is displayed on the display device; in one example, the threshold speed can be determined according to practical experience, and in general, the threshold speed can be set to 5 kilometers per hour;

[0078] If it is determined that the speed of the transportation tool is higher than the threshold speed, the content indicated by the positioning indication field is not displayed on the display device.

[0079] Embodiment 5

[0080] In embodiment 5, the method further comprises:

[0081] After determining the number of the first roadside device, it is judged whether the number of the second roadside device is stored in the memory;

[0082] If it is judged that the number of the second roadside device is stored in the memory, the number of the second roadside device is deleted, and the number of the first roadside device is stored.

[0083] Embodiment 6

[0084] In embodiment 6, the method further comprises:

[0085] After determining that the first roadside device is a valid roadside device, the distance between the transportation tool and the first roadside device is determined based on the speed of the transportation tool; in the foregoing example, the current transportation tool has identified one valid roadside device (i.e., the roadside device numbered “051”), and it is assumed that the consumer turns right in the state of Figure 3 the transportation tool will not be able to identify the next potential valid roadside device (i.e., the roadside device numbered “071”), and at this time, the transportation tool can estimate the distance traveled by the transportation tool based on the speed of the transportation tool and the time since the first roadside device was determined to be a valid roadside device; for example, a threshold distance of 200 m can be set, and when the estimated distance traveled by the transportation tool reaches 200 m, the transportation tool can display a prompt of “Please return the original route” on the display device. In the absence of satellite navigation and cellular networks, through the method of embodiment 6, the transportation tool can (although it is relatively rough) but simply judge whether the consumer has driven the transportation tool outside the predetermined route (there is no roadside device outside the predetermined route), and if it is determined that the consumer has driven the transportation tool outside the predetermined route, the transportation tool can timely indicate a prompt to the consumer to deviate from the predetermined route, and at this time, since the distance of the consumer from the original predetermined route does not exceed 200 m, the consumer can basically find the original predetermined route through visual observation, and the scheme of embodiment 6 can greatly reduce the risk of the consumer getting lost;

[0086] If the positioning system does not identify another valid landmark device again before the distance exceeds the threshold distance, a return prompt is displayed on the display device.

[0087] Embodiment 7

[0088] The present application provides a transportation management system for rural tourism, the system comprising a positioning system located on a transportation tool, the positioning system being configured to:

[0089] acquiring an image of a first roadside device via a camera;

[0090] determining a number of the first roadside device based on the image of the first roadside device;

[0091] listening to a positioning message sent by a roadside device;

[0092] determining whether to continue decoding the positioning message based on an operator identification field of the positioning message;

[0093] if it is determined to continue decoding the positioning message, then continuing decoding a roadside device number field of the positioning message.

[0094] In one preferred embodiment, the positioning system is further configured to:

[0095] determining whether the first roadside device is a valid roadside device based on the roadside device number field of the positioning message;

[0096] if it is determined that the first roadside device is a valid roadside device, then displaying on the display device what is indicated by a positioning indication field of the positioning message.

[0097] In one preferred embodiment, determining whether the first roadside device is a valid roadside device based on the roadside device number field of the positioning message comprises:

[0098] determining a number of the roadside device that sent the positioning message based on the roadside device number field;

[0099] determining whether the number of the roadside device that sent the positioning message is the same as the number of the first roadside device;

[0100] if it is determined that the number of the roadside device that sent the positioning message is the same as the number of the first roadside device, then determining that the first roadside device is a valid roadside device.

[0101] In one preferred embodiment, before displaying on the display device what is indicated by the positioning indication field, the positioning system is further configured to:

[0102] determining whether what is indicated by the positioning indication field belongs to a first type of content or a second type of content;

[0103] if it is determined that the content indicated by the location indication field belongs to the first type of content, displaying the content indicated by the location indication field on the display device;

[0104] if it is determined that the content indicated by the location indication field belongs to the second type of content, continuing to determine the speed of the transportation tool;

[0105] if it is determined that the speed of the transportation tool is lower than the threshold speed, displaying the content indicated by the location indication field on the display device;

[0106] if it is determined that the speed of the transportation tool is higher than the threshold speed, not displaying the content indicated by the location indication field on the display device.

[0107] The several embodiments listed in the specification are intended to exemplarily present possible implementation schemes of the present application, and do not constitute a limitation on the protection scope of the claims. Based on the understanding of the essential spirit and principles of the present application, those skilled in the art can make modifications to the technical features, equivalent replacements to the structure, or adaptive adjustments to the application scenarios, and such modifications shall be considered to fall within the scope of the present application. It should be noted that the phrases such as "preferred embodiment", "example", etc. appearing in the specification are only for illustrative purposes in the corresponding specific context, and do not limit the present application to the specific details described therein. The protection scope of the present application is subject to the content recorded in the claims, and also includes various equivalent implementation manners which can be reasonably inferred by those skilled in the art after reading the claims according to the general technical common sense.

Claims

1. A method for managing a transport tool for rural tourism, the method being performed by a positioning system located on the transport tool, the method comprising: acquiring an image of a first roadside device via a camera; determining a number of the first roadside device based on the image of the first roadside device; listening to a positioning message sent by a roadside device; determining whether to continue decoding the positioning message based on an operator identification field of the positioning message; if it is determined to continue decoding the positioning message, continuing to decode a roadside device number field of the positioning message.

2. The method of claim 1, wherein, The method further comprises: determining whether the first roadside device is a valid roadside device based on the roadside device number field of the positioning message; if it is determined that the first roadside device is a valid roadside device, displaying content indicated by a positioning indication field of the positioning message on a display device.

3. The method of claim 2, wherein, Determining whether the first roadside device is a valid roadside device based on the roadside device number field of the positioning message comprises: determining a number of a roadside device sending the positioning message based on the roadside device number field; determining whether the number of the roadside device sending the positioning message is the same as the number of the first roadside device; if it is determined that the number of the roadside device sending the positioning message is the same as the number of the first roadside device, determining that the first roadside device is a valid roadside device.

4. The method of claim 2, wherein, Before displaying the content indicated by the positioning indication field on the display device, the method further comprises: determining whether the content indicated by the positioning indication field belongs to a first type of content or a second type of content; if it is determined that the content indicated by the positioning indication field belongs to the first type of content, displaying the content indicated by the positioning indication field on the display device; if it is determined that the content indicated by the positioning indication field belongs to the second type of content, continuing to determine a speed of the transport tool; if it is determined that the speed of the transport tool is lower than a threshold speed, displaying the content indicated by the positioning indication field on the display device; if it is determined that the speed of the transport tool is higher than the threshold speed, not displaying the content indicated by the positioning indication field on the display device.

5. The method of claim 1, wherein, The method further comprises: after determining the number of the first roadside device, determining whether a number of a second roadside device is stored in a memory; if it is determined that the number of the second roadside device is stored in the memory, deleting the number of the second roadside device and storing the number of the first roadside device.

6. The method of claim 4, wherein, The method further comprises: after determining that the first roadside device is a valid roadside device, determining a distance between the transport tool and the first roadside device based on a speed of the transport tool; if another valid roadside device is not identified again by the positioning system before the distance exceeds a threshold distance, displaying a return prompt on the display device. 7.A system for managing a transport tool for rural tourism, the system comprising a positioning system located on the transport tool, the positioning system being configured to: acquire an image of a first roadside device via a camera; determine a number of the first roadside device based on an image of the first roadside device; listen for a positioning message transmitted by a roadside device; determine whether to continue decoding the positioning message based on an operator identification field of the positioning message; if it is determined to continue decoding the positioning message, continue decoding a roadside device number field of the positioning message.

8. The system of claim 7, wherein, The positioning system is further configured to: determine whether the first roadside device is a valid roadside device based on the roadside device number field of the positioning message; if it is determined that the first roadside device is a valid roadside device, display, on a display device, content indicated by a positioning indication field of the positioning message.

9. The method of claim 8, wherein, Determining whether the first roadside device is a valid roadside device based on the roadside device number field of the positioning message includes: determining a number of a roadside device that transmitted the positioning message based on the roadside device number field; determining whether the number of the roadside device that transmitted the positioning message is the same as the number of the first roadside device; if it is determined that the number of the roadside device that transmitted the positioning message is the same as the number of the first roadside device, determining that the first roadside device is a valid roadside device.

10. The method of claim 8, wherein, Before displaying, on the display device, the content indicated by the positioning indication field, the positioning system is further configured to: determine whether the content indicated by the positioning indication field belongs to a first type of content or a second type of content; if it is determined that the content indicated by the positioning indication field belongs to the first type of content, display, on the display device, the content indicated by the positioning indication field; if it is determined that the content indicated by the positioning indication field belongs to the second type of content, continue determining a speed of the transportation vehicle; if it is determined that the speed of the transportation vehicle is below a threshold speed, display, on the display device, the content indicated by the positioning indication field; if it is determined that the speed of the transportation vehicle is above the threshold speed, do not display, on the display device, the content indicated by the positioning indication field.

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