CN109470257B - A method of guiding lost people based on blockchain technology - Google Patents

Abstract

A method for guiding lost persons based on blockchain technology belongs to the field of guiding technology. The method is used for a lost person guidance system with multiple use terminals and one processing terminal, and the multiple use terminals realize data sharing through the blockchain network; the processing terminal performs data communication with the multiple use terminals; the method includes step S01, when the use terminal is in a In the lost state, send a lost distress signal to the blockchain network; the lost distress signal includes the current location information and target location information of the terminal; step S02, other terminals obtain the lost distress signal, and will use the terminal according to the current location information and target location information. The target position information matches the route prompt information that is the same as the starting and ending positions of the travel track and sends it to the processing end; the processing end is used to receive and process the route prompt information of other terminals to obtain the route information, and filter out the appropriate route information and send it to the lost state. using the terminal. The invention can quickly obtain a credible correct route for the lost person.

Description

A method of guiding lost people based on blockchain technology

technical field

The present invention relates to the technical field of road guidance, in particular to a method for guiding lost persons based on blockchain technology.

Background technique

With the rapid economic development, the pace of urbanization has become faster, the number of urban population has continued to increase, and the speed of urban construction has continued to accelerate. As a result, the complexity of the urban built environment has increased, and the flow of people has accelerated. People often encounter the dilemma of getting lost, and the existing channels are guided by navigation and positioning. However, due to the insufficient accuracy of GPS position, the mechanization of the navigation system, and the excessive number of differential roads, navigation is prone to errors. Sometimes relying on navigation alone will not solve the problem of getting lost.

SUMMARY OF THE INVENTION

Aiming at the problems existing in the prior art, the present invention proposes a method for guiding lost persons based on block chain technology, which can quickly provide a credible correct route for lost travelers.

The present invention is achieved through the following technical solutions:

The present invention is a method for guiding lost persons based on blockchain technology, which is applied to a system for guiding lost persons with multiple use terminals and one processing terminal. The multiple use terminals are respectively connected to the blockchain network and realize multiple Data sharing of each user terminal; the processing terminal performs data communication with multiple user terminals respectively;

Methods include:

Step S01, when the use terminal is in a lost state, the use terminal sends a lost call for help signal to the blockchain network; the lost call for help signal includes the current position information and target position information of the use terminal;

Step S02, other use terminals obtain the lost distress signal through the blockchain network, and match the route prompt information that is identical to the starting and ending positions of the travel track according to the current position information and target position information of the use terminal to the processing terminal; the processing terminal It is used to receive and process the route prompt information of other user terminals to obtain the route information, and filter out the appropriate route information and send it to the user terminal in the lost state.

Preferably, step S02 includes:

In step S21, other user terminals obtain the lost distress signal through the blockchain network, and according to the current position information and target position information of the user terminal, match the same route prompt information as the starting and ending positions of the travel track to the processing terminal;

Step S22, the processing terminal receives the route prompt information and processes to obtain the route information;

Step S23, the processing terminal counts the number of identical route information, and determines that when the amount of identical route information is greater than the critical value of the amount of route information, the route information is used as appropriate route information;

Step S24, the processing end sends the appropriate route information to the user terminal in the lost state.

Preferably, in step S21, according to the current position information and target position information of the user terminal, the route prompt information that is the same as the starting and ending positions of the travel track is matched, specifically:

Judging that the current position information is the same as the starting position information of the traveling track, and the target position information is the same as the ending position information of the traveling track; or, judging that the current position information is the same as the ending position information of the traveling track, and the target position information is the starting position information of the traveling track. When it is the same, other user terminals are matched to the same route prompt information as the travel track.

Preferably, the starting and ending positions of the travel track are obtained through speech, text, and pictures provided by pedestrians, or obtained through a video of a vehicle driving recorder.

Preferably, in step S22, the processing end processes the route prompt information to obtain the route information, specifically: classifying the route prompt information, and marking different route prompt information.

Preferably, step S23 further includes: when judging that the quantity of the same route information is not greater than the critical value of the quantity of route information, the route information is regarded as suspicious route information, and the suspicious route information is not sent to the user terminal in the lost state.

Preferably, step S24 specifically includes: arranging the appropriate route information in descending order of the number of route information, and sending it to the user terminal in the lost state.

Preferably, the processing terminal is the cloud.

Preferably, the use terminal is an intelligent mobile terminal.

The present invention has the following beneficial effects:

The present invention is a method for guiding lost people based on blockchain technology. When a traveler finds that he is lost, he will send his location and target position to everyone through the blockchain technology, and others can provide them with corresponding routes. Finally, the system will send the route that is determined to be credible and feasible to the lost person for selection. This method uses blockchain technology, which has the advantages of decentralization and high reliability, so that lost people can quickly get a credible correct route.

Description of drawings

Fig. 1 is a general flow chart of a method for guiding lost persons based on blockchain technology of the present invention;

Fig. 2 is a sub-flow block diagram of step S02 in Fig. 1;

FIG. 3 is a flowchart of a specific example of a method for guiding lost persons based on blockchain technology according to the present invention.

Detailed ways

The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

When people get lost, they usually turn on their mobile device's navigation app or car navigation system for real-time navigation. However, during the navigation process, due to unstable signal reception or inaccurate GPS location positioning, it is impossible to provide timely and accurate path navigation assistance. Moreover, during the navigation process, the route recommended by the navigation often has many forks, or the route is narrow and bumpy, which is prone to errors and unsafe when actually following the navigation.

Blockchain technology is a decentralized distributed database. A blockchain is a series of data blocks that are associated with cryptographic methods. Each data block contains information about a blockchain network transaction. Multiple blockchains can build a blockchain network for data sharing. Due to the characteristics of the blockchain technology, its data has high reliability, so the present invention proposes a method for guiding lost persons based on the blockchain technology. The method can solve the problems that the recommended signal of the current navigation route is delayed and unstable, and the recommended route is inaccurate and untimely.

A method for guiding a lost person based on the block chain technology of the present invention is applied to a guidance system for a lost person. The system includes multiple use terminals and one processing terminal. Multiple user terminals are respectively connected to the blockchain network and realize the data sharing of multiple user terminals through the blockchain network. Each user terminal is equivalent to a blockchain node. By establishing a consensus mechanism, incentive mechanism, and smart contracts, more Each blockchain node is constructed into a blockchain network. The establishment of the blockchain network under the present invention is based on the sharing of data such as current position information, target position information, route prompt information, and route information under the condition of getting lost, so as to overcome the existing navigation problems and provide navigation route suggestions in a timely and accurate manner. The use terminal may be an intelligent mobile terminal, such as a smart phone and a smart tablet computer. The processing terminal performs data communication with a plurality of user terminals respectively. The processing terminal establishes a data communication connection with each user terminal, the processing terminal may be a processing platform, and is realized by a remote control system or a server, and the processing terminal may also be a cloud.

Each blockchain node stores the data of its own terminal, as well as the data of other blockchain nodes connected with the blockchain node through consensus mechanism, incentive mechanism and smart contract. The data of other blockchain nodes is the transaction data generated by their transactions with the current blockchain node.

As shown in Figure 1, the method of the present invention comprises:

Step S01, when the use terminal is in a lost state, the use terminal sends a lost call for help signal to the blockchain network; the lost call for help signal includes the current position information and target position information of the use terminal;

Step S02, other use terminals obtain the lost distress signal through the blockchain network, and match the route prompt information that is identical to the starting and ending positions of the travel track according to the current position information and target position information of the use terminal to the processing terminal; the processing terminal It is used to receive and process the route prompt information of other user terminals to obtain the route information, and filter out the appropriate route information and send it to the user terminal in the lost state.

In step S01 , when the traveler finds that he is lost, he uses the terminal around him to send a lost help signal. The traveler can be a person who travels on foot, by bicycle, or a person who travels by car. The use terminal has a positioning function and can identify current position information. Alternatively, the user terminal can determine the current location information by manually inputting the location.

As shown in Figure 2, step S02 includes:

In step S21, other user terminals obtain the lost distress signal through the blockchain network, and according to the current position information and target position information of the user terminal, match the same route prompt information as the starting and ending positions of the travel track to the processing terminal;

Step S22, the processing terminal receives the route prompt information and processes to obtain the route information;

Step S23, the processing terminal counts the number of identical route information, and determines that when the amount of identical route information is greater than the critical value of the amount of route information, the route information is used as appropriate route information;

Step S24, the processing end sends the appropriate route information to the user terminal in the lost state.

Specifically, in step S21, according to the current position information and target position information of the user terminal, the route prompt information that is the same as the starting and ending positions of the traveling track is matched, specifically: judging that the current position information is the same as the starting position information of the traveling track, and the target position The information is the same as the position information of the end point of the travel track; or, when it is judged that the current position information is the same as the end position information of the travel track, and the target position information is the same as the start position information of the travel track, other terminals match the same route prompt information as the travel track . When the route prompt information is matched, it is stored in the data block of the blockchain node to which the terminal belongs.

The route prompt information includes the start and end position information of the travel track and the entire path information. The route prompt information is obtained through voice, text, and pictures provided by pedestrians, or obtained through video of a vehicle driving recorder. The text information, including the starting position information of the travel track and the end position information of the travel track, is obtained by analyzing and processing the voice information, the picture information, and the video of the vehicle driving recorder. The whole path information is information from the starting position information of the travel track to the end position information of the travel track. The whole path information, for example: the starting position information of the travel track is "Changdao Park No. 3 Bridge", after crossing the bridge, turn left at the first traffic light, go straight to the third intersection, turn right, go straight for 500 meters to the end of the travel track, and proceed The location information of the track end point is "Biboyuan Community". The entire path information is stored in the above-mentioned text form, and can also be stored in the form of a picture, such as obtaining a map of the area where the starting position and the end position of the traveling track are located, drawing the traveling path on the map, and using the drawn area map as the traveling path. Full path information storage.

In the step S22, the processing end processes the route prompt information to obtain the route information, specifically: classifying the route prompt information, and marking different route prompt information. Since there may be more than one route for the same starting and ending position, the different routes are marked as i (where i=1, 2, 3, ...), and the number of the i-th route is marked as Ti. The route information includes the start and end position information of the marked travel track and the entire route information.

In step S23, according to the marked routes, the above-mentioned classified routes are counted, and Ti is the number of routes having the same route as the i-th route. When it is judged that the number of the same route information is greater than the critical value N of the number of route information, the route is traveled or driven by most people, and the reliability is high, and the route information is regarded as the appropriate route information. When it is judged that the number of the same route information is not greater than the critical value of the number of route information, this route information is regarded as suspicious route information. The suspicious route indicates that there are few people who have walked or driven, and there are safety hazards such as uncertain routes, remote routes, and bumpy roads. The suspicious route information is not sent to the user terminal in the lost state.

In step S24, the processing end sends the appropriate route information to the user terminal in the lost state. The above-mentioned suitable route information can be one piece of information or multiple pieces of information. When there are multiple pieces of suitable route information, the suitable route information can be arranged in descending order according to the number of route information to form a route recommendation list and send it. Use the terminal in a lost state. The user using the terminal can select the most suitable route information according to the route recommendation list. The suitable route information includes the filtered start and end position information of the travel track and the entire route information.

Figure 3 shows an example flow diagram of the method according to the invention. If the traveler finds himself lost, he needs to open the terminal for help. The user terminal is in a lost state, that is, a=1, otherwise, a=0. The user terminal sends its own location and target position to other user terminals through the blockchain network. Other terminals call the route that matches the starting and ending positions of the travel track, and the processing end counts the number of the same route and judges that the number of identical route information is greater than the critical value N of the number of route information, and sends the route i greater than the critical value N as a suitable route. Give the lost person a choice. The lost person chooses the final route according to their own situation to help the lost person get out of the lost state.

It should be understood by those skilled in the art that the embodiments of the present invention shown in the above description and the accompanying drawings are only examples and do not limit the present invention. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention may be modified or modified in any way without departing from the principles.

Claims (7)

1. A method for guiding lost persons based on blockchain technology, characterized in that, it is applied to a system for guiding lost persons with multiple use terminals and one processing terminal, and multiple use terminals are respectively connected to the block chain network and pass through the block chain. The chain network realizes data sharing among multiple user terminals; the processing terminal communicates data with multiple user terminals respectively; Methods include: Step S01, when the use terminal is in a lost state, the use terminal sends a lost call for help signal to the blockchain network; the lost call for help signal includes the current position information and target position information of the use terminal; Step S02 includes: In step S21, other user terminals obtain the lost distress signal through the blockchain network, and according to the current position information and target position information of the user terminal, match the same route prompt information as the starting and ending positions of the travel track to the processing terminal; In step S21, according to the current position information and target position information of the user terminal, the route prompt information that is the same as the starting and ending positions of the travel track is matched, specifically: Judging that the current position information is the same as the starting position information of the traveling track, and the target position information is the same as the ending position information of the traveling track; or, judging that the current position information is the same as the ending position information of the traveling track, and the target position information is the starting position information of the traveling track. When it is the same, other terminals match the same route prompt information as the travel track; Step S22, the processing terminal receives the route prompt information and processes to obtain the route information; Step S23, the processing terminal counts the number of identical route information, and determines that when the amount of identical route information is greater than the critical value of the amount of route information, the route information is used as appropriate route information; Step S24, the processing end sends the appropriate route information to the user terminal in the lost state. 2. A method for guiding lost persons based on blockchain technology according to claim 1, wherein the starting and ending positions of the traveling track are obtained through voice, text, and pictures provided by pedestrians, or through the data of the vehicle driving recorder. Video obtained. 3. A method for guiding lost persons based on blockchain technology according to claim 1, wherein in step S22, the processing terminal processes the route prompt information to obtain the route information, specifically: classifying the route prompt information, and Mark different route hints. 4. The method for guiding lost persons based on block chain technology according to claim 1, wherein step S23 further comprises: when judging that the quantity of the same route information is not greater than the critical value of the quantity of the route information, use this route information as the route information. Suspicious route information, the suspicious route information is not sent to the user terminal in the lost state. 5. A method for guiding lost persons based on blockchain technology according to claim 1, wherein step S24 specifically comprises: arranging the appropriate route information according to the number of route information in descending order, and sending it Use the terminal in a lost state. 6 . The method for guiding lost persons based on blockchain technology according to claim 1 , wherein the processing terminal is a cloud. 7 . 7 . The method for guiding lost persons based on blockchain technology according to claim 1 , wherein the use terminal is an intelligent mobile terminal. 8 .

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