TW201030312A - Crossroad positioning method and portable positioning device thereof - Google Patents

Abstract

A crossroad positioning method is used for a portable positioning system with a crossroad database and a display, wherein the portable positioning system is used for a user to obtain a present crossroad location from an observing place in the crossroad location. The crossroad positioning method comprises the following steps: obtaining at least one crossroad detected value, wherein each crossroad detected each crossroad detected value comprises a vertical value; if the architecture is not well-known, such architecture should be located in the observing place or in a corner facing said observing place of crossroad location; matching the crossroad detected value with the crossroad database to output at least one target position in the display.

Description

201030312 VI. Description of the Invention: [Technical Field] The present invention relates to a positioning method and a portable positioning system thereof, and more particularly to a method for locating a intersection intersection and a portable positioning thereof at a location of a current intersection system. [Prior Art]

In the prior art, when the user is in an unfamiliar environment or unfamiliar with the road (e.g., when driving to a county or city), in order to let the user know where the current location is, the satellite navigation device is usually used. However, conventional satellite navigation devices have at least the following three disadvantages. (1) Whether using GPS navigation or AGPS navigation, it usually has an error value ranging from several meters to ten meters. If the user is a pedestrian, the error is too large. (2) When used in urban areas, buildings with a large number of screens will block the signal and cause the positioning result. (3) The satellite satellite device used in the past is expensive and consumes a large amount of electricity during operation, so it is difficult to fully popularize it. In addition, depending on the usage habits, the requirement of r 2, left turn or right turn is usually made, so the positioning == is not related to the intersection design in the prior art, therefore, it is necessary to provide a intersection. Positioning line to improve the existence of the prior art and its broadcast 4 201030312 [Summary of the invention] In order to achieve the above purpose, the present invention submits the following steps: at the intersection / meeting intersection & The bit method includes: 'Each-road detection value corresponds to one of the tops of an artificial building:,]

The intersection_value includes a vertical value for the top point if the person is located at the intersection of the intersection or the junction intersection (4) in the intersection meets at least one intersection of at least one of the intersections; The display device outputs an image of the at least one intersection location. In order to achieve the above-mentioned other objects, the portable positioning system package of the present invention includes a processor, a memory and a measuring device, wherein the memory stores a intersection database and a software program. The measuring device can measure at least one intersection measurement value. When the processor executes the software program of the memory, the following mechanism can be achieved. The at least-road detection value is obtained, and each H measurement corresponds to a top point of an artificial structure, wherein each intersection detection value includes a vertical value. Obtaining at least one auxiliary information; comparing the at least one intersection location that simultaneously meets the at least one auxiliary information and the at least one intersection extract value in the intersection intersection database; and outputting an image corresponding to the at least one intersection location . The invention has the advantages of novel construction, industrial use, and improvement of efficacy, so that the invention patent is applied according to law. 5 201030312 [Embodiment] It is easy to understand, the following, features and advantages can be more clearly described as follows.实施 Embodiments, and in conjunction with the architecture of the figure' system: Test: 1 and Figure 2. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a diagram showing the portable positioning and positioning system of the present invention. Figure 2 is a schematic view of the environment in which the present invention is used. Portable and ', the user knows the location of the intersection at the intersection 80.

= equal 1 = System 1 contains a simple measuring device, or a device with a screen and executable program or a device with cloud = nose processing. The cloud computing process is a network computing service, and the user's hand is based on the ship (four) on the network. The 疋 疋 系统 system 1 includes a processor 10, a memory 20 and a measuring device 30, a complex φ, a county, a 丨 / /, a ' 1 measuring device 3 〇 can detect intersection detection values 91, 92, ? or 94. A portable device with better computing power, wherein the memory 20 is stored in the intersection body library 22 and the software program 24. When the processor 10 executes the software program 24 of the memory 20, the purpose of the intersection method of the present invention can be achieved. If the portable positioning system can perform wireless data exchange, for example, when the portable positioning system is located in the 3G network, the portable positioning system can transmit the measured value of the measuring device 3 to the network system through the wireless transmission device 100. The program 24 performs discrimination. Since the operation of the system can be decentralized, for example, the measurement information is generated by a simple measuring device, the mobile phone receives the measurement information and uploads it to the screen display of the mobile phone after being identified and judged on the road, Figure 1 The functional blocks in the system shown are not necessarily in the same device, and the same functional block can be located on two physical devices at the same time. For example, in Figure 1, the intersection road junction 6 201030312 library 22, can be divided into two, one library, the other block is located, the Feng Lu server is - the portable storage ί ί on the machine is the part of the database, Even: the Ministry of Capital then invited - and participate in the old: line transmission device can be omitted, such as the intersection of the intersection positioning method]? The schematic diagram of the intersection environment of the present invention will be described. FIG. 3 is a flow chart of the method for positioning the intersection of the intersection of the valve and the valve of the present invention. 1, ^ 2 intersection road ^ positioning method is more detailed than the portable positioning system Operate the portable positioning system 1 to know the location of the current meeting. Among them, the junction of the intersection is the intersection of at least two roads. For example, it may be a crossroad, a τ intersection, a ring, a three-way intersection, and the like. When the user is a pedestrian, the user is at the corner of the sidewalk adjacent to the intersection 80. The intersection method of the present invention includes the following steps: Step 301: Obtain at least one intersection detection value 91, 92, 93 or 94. The user obtains at least one intersection/[detection value 91, • 92, 93 or 94 by the measuring device 30. In the embodiment of FIG. 2, the intersection detection values 91, 92, 93 or 94 correspond to the buildings 71, 72, 73, 74, respectively. Furthermore, the intersection detection value 91 is obtained by the user using the measuring device 30 to align with the roof of the building 71. The meaning of the measurement method and the intersection detection value 91, 92, 93 or 94 is further explained below. In this embodiment, each intersection detection value includes "horizontal value" and "vertical value", wherein the 'horizontal value is based on the north and south poles (for example, the north-south axis is defined as the degree of curvature) defined in a counterclockwise direction. The positive angle value is the horizontal angle value 'the value is the azimuth angle; the vertical value is the 7 201030312 pitch angle value, more accurate, can be based on the horizontal plane, that is, the horizontal line is defined as 0 degrees 'the elevation angle is defined as the positive value of the pitch angle. Further, the vertical value may be a distance from the top point to the user or a distance from the top point to the ground. The so-called top point is a point on the roof of a building or a point on the upper edge of an annex building on the roof of the building. The measurement method can be illustrated by Figure 4 as the user is located at a corner of a sidewalk of Figure 2, and is measured against an artificial building or artificial facility 43. The choice of artificial building or artificial facility 43 is, in principle, selected from the building closest to the user in the opposite corner of the street, such as 7 Bu & 73 in Figure 2, respectively located on the corner of the building For example, if you need to add ^, the exception to the building U behind the user's title is the famous building or famous facilities. For example, when the maker stands on the corner, you can see the mouth of the North 101 building or Shang Xiong 85. Building or Tokyo Tower. An example of a famous landmark can be used as an aid to the steps in Figure 3 or as a junction detection value directly in step 302. Into the ^_ step, when the artificial building or artificial facilities 43 is a famous landmark, the road junction debt measurement has the right intersection location information. Take the legend 'detection value 44 & contains the factory indicator of the money mark (four), and the vertical axis shows _ famous: angle: far (four) measured value 46 represents no depression at the corner of the street == say It is supported by a kanban or a plant. However, within a range of five meters, it can be measured—the detection value is not far from the corner. The detected value is still available. The reason for knowing the location of the intersection is that it can be well-known at the intersection. ^: Most of them have the undetected value of 45 in Figure 5. Therefore: Seeing ' is a very useful piece of information.匕月匕8 201030312 The above-mentioned principle of selecting the first building on the street corner may be the case of Figure 6. The first building 47 is much lower than the building 49 at the rear, such as schools, government agencies and the rear. The relationship of the building is even a relationship between the open space and the rear building. At this point, the user selects the top point of the building 49 while measuring the top point of the building 47 and the trailing point input of the 'building 49' behind. Finally, in the example of Fig. 6, another possible embodiment is to measure the azimuth angle of the two ends of the building 47 to indicate the width. If the building is widened, the auxiliary information may be helpful to some extent. In the present embodiment, the measuring device 30 can be a magnetic field measuring device, and the horizontal value and the vertical value are obtained by the magnetic field (four) device. For example, the three-axis magnetic field measuring device used in U.S. Patent No. 7,337,549, or other similar commercial electronic compass device. Since the electronic compass is a conventional technique, its structure and principle will not be described again. However, it should be noted that the measuring device used in the present invention is not limited thereto, for example, to obtain a more accurate vertical value, using a two-axis magnetic field measuring device to measure the azimuth angle and matching a tilting sensing device such as gravity. The acceleration device measures the inclination. Even when the vertical value is the distance, an acoustic distance measuring device can be used as one of the measuring parts. The above * (4) the county, in addition to the size of the test, you need to use the appropriate measurement range measuring device, if the magnetic field measuring device needs to measure the geomagnetic (about 0.5 Gauss) device; measuring the inclination The energy required is measured to be near 80 degrees, and the measuring distance can be measured to a distance of 1 inch. The measured value can be a combination of a set of angles. Taking FIG. 2 as an example, the intersection intersection 80 is an intersection, and the user 50 is located at the lower right side of the intersection intersection 8〇. The user 50 faces the intersection intersection. 80 A total of three buildings 71, 72, 73 are located at the corner of the street. The user 5 measures the tops of the buildings 71, 72, 73 by using the measuring device 30, that is, 9 201030312, the three intersection detection values 91, 92 93 can be known. In one embodiment, the intersection detection value 91 For (〇., 50.), the intersection detection value is 92 (40. 20), the intersection detection value is 93 (9〇., 70.), and the intersection detection value 94 is '(270., 8〇) .). Among them, 〇°, 40. 90. 270. They are the horizontal angle value ' of the intersection detection value 9 ]_', 9 2, 9 3 or 9 4 and 50 respectively. 20. , 7〇. 8, 〇. They are the elevation angles of the intersection detection values 91, 92, 93 or 94, respectively. Therefore, among the three buildings 71, 72, 73 facing |, the building 73 is the highest height, and the building 72 is the lowest height.

Since the intersection detection value 91, 92, 93 or 94 of each intersection intersection 80 is different, as long as the intersection detection value 91, 92, 93 or 94 is compared, the user's current position is known. . It should be noted that the number of intersection detection values is not limited to this. For example, the number of intersection detection values is also reduced to one, two or four. Step 302: Align at least the intersection location of the at least one intersection extracting value 91, 92, Θ3 or 94 in the intersection intersection database 22. Intersections The database 22 stores the intersection detection values of the major roads as a basis for comparison. For example, the intersection intersection database 22 can be built in the portable positioning system 1 or placed on the network computer system. The card can be stored in the memory card or downloaded through the Internet. The training of the 1 1 shell measured value 91, the person w the final processor; [〇 体 〇 2 2 〇 路 intersection intersection database 22, to obtain at least ~ to 1 location. The way of comparison can be explained by Figure 7. First, the axis ί value ί indicates the pitch angle of the intersection detection value, and the value of the fork axis is the position angle. The Detective value 9 is 92, 93, 94. The altimeter is small, and the C4 is the horizontal axis. And - 资科库中路0资料10 201030312 With A', B', C,, D' as the horizontal axis of the altimeter, apparently does not stand up. The intersection data has a dotted line segment at 91a, 92a, 93a, and 94a. The curve segment represents a possible user measurement error of the azimuth angle. The so-called user measurement error is described below with reference to FIG.垂 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在The azimuth error will be ashamed. The direct value of the vertical value of the pitch angle produces less measurement error. The reason is that the measurement will be at a height from the ground, but the height difference of each person is up to the number of jade (for example, 150 cm in height and 200 cm in height). The height difference is the actual height of the highest point of the building. In comparison, the measured pitch angle is not much different depending on the right angled quadrilateral produced by the two users. In another embodiment, the intersection detection value may include a difference between the azimuth angle and the pitch angle except for the azimuth and elevation angles. The reason is that there will be four street corners. Each of the angles measured by the angle-of-group measurement is mainly due to the difference in azimuth. In another embodiment, the measured = :=·(:::) is turned by the corner (measuring point). The square of the corner of the corner is the four corners of the intersection, ^! The 74 measured by the corner 72 and the 71 measured by the corner 1 and the 71 measured by the corner 72 are the same. However, the arc angle theorem shows that the phase angle difference between 74 and 71 is 7 two. ί arc length 'this phase angle difference is not due to the difference between measuring points 73 and 72, 7111 = the difference between the square (four) is the difference between the average of the elevation (four) and the average of the pitch angle of the first and the first knife. Figure 8 Formed state, where 1〇1 corresponds to 74 and 71 in Figure 8Α = then 71 and 72 are in the arc of Figure 8Α, 1〇3 is the same as ι〇4. The γ-axis value of 201030312 represents the difference between the average of the pitch angles of the measuring points 74 and 71, and the X-axis value can be the phase angle difference. In this way, I (4) can use the - method for numerical comparison. Step 303: Obtain at least one auxiliary information 61.

The purpose of the auxiliary information 61 is to narrow the search range required for the comparison, and to compare the intersection detection value 9 92, 93 or 94 with the auxiliary information to be faster and more accurate. For example, the auxiliary information 6ι package can be input by the user 50 by the famous landmark information, the green space information, the building appearance color information, the appearance lighting information, the intersection form, the secret style f, and the like. The famous landmarks around the world are famous landmarks within the user's line of sight, such as high-rise buildings (such as 101 Building, Shin Kong Building), famous trademarks (such as gas stations, convenience stores). This information can be displayed on the screen for the user to select the existing logo pattern or icon. "Greenland Information" is a tree with information on one side of the intersection. In the city, it is not common to have trees above the two corners of the intersection 80. Therefore, the green information is useful information when comparing the databases. . The "Building Appearance Color Information" is the appearance color of the building during the day. The "Building Exterior Light Information" is the light color or brightness of the building's exterior at night. The color or lighting information can be selected by the user by displaying a color meter and brightness in the screen. “Intersection form” means the form of intersection intersection 80 (such as intersection, T-junction, ring, three-way intersection, etc.). "Building Style Information" means the shape, height, and Chinese and Western style information of a building. The above information can be displayed by the graphical interface of the intersection type. The user of 12 201030312 indicates the storefront with the famous trademark on the corner of the street, the road tree at the corner of the street and the color of the street corner. In the embodiment of Fig. 2, the auxiliary information 61 is the location information of the famous landmark 62, which is the 101 building, and the auxiliary information 61 is the value (30°, 60°) of the famous landmark 62 detected by the measuring device 30. It should be noted that the so-called famous landmarks or famous facilities can also be used as a main judgment intersection detection value in step 301 alone. The intersection form can also be selected by the user prior to step 301. Step 304: The 22 matches in the intersection intersection database meet at least one final location of at least one auxiliary information 61 and at least one intersection detection value 91, 92, 93 or 94. The following two possible ways are as follows: (1) The "at least one intersection location" obtained in step 302 is sent to the intersection of the memory 20 by the processor 10 together with the "auxiliary information 61" obtained in step 303. The database 22 is used to obtain at least one intersection location that is consistent. (2) The "road detection value 91, 92, 93 or 94" is combined with the "auxiliary information 61" by the processor 10 to match the intersection intersection 22 of the memory 20 to obtain at least one intersection. location. Step 305: Output at least one final location. Output at least one final location. For example, the output mode may be displaying an actual intersection photo or key, displaying a current location map, displaying a current location address, and the like on the screen of the portable positioning system 1. The actual intersection output can be a 360 degree panorama or a reference horizontal value output.

201030312 User 50 faces the intersection of the intersection road σ 8G or the image. The principle of comparison judgment of the method is judged by wide and strict. Since the measurement will have an error in the comparison of the financial flexibility, as shown in Figure 7, the vertical value can also have a certain error amplitude, but the horizontal error will be high (four) straight error. For the part of the auxiliary message, a stricter screening can be made. The reason is that the user sees the other corner of the store as a convenience store or a post office, which is especially high, especially the way I compare the patterns. Then, if the final location of the output or the amount of intersection is too large, the error tolerance of the comparison can be reduced (can be performed automatically or step 303 again to obtain other auxiliary information. D, only note that The intersection location may be the final location. In the case where the comparison is only performed using the intersection detection value 91, 92, 93 or 94, the steps 303 to 305 may be omitted. At this time, the intersection location is the final location. The intersection location method is not limited to the outdoor track. It can also be used indoors, such as underground streets or complex MRT stations. At this time, the target to be measured can be artificial facilities, such as labels and indicating facilities of specific shapes or patterns. A target that can be easily understood by ordinary users and measured. The user stands at the photographable place 'to face the wall of the artificial facility including the back. When the photo taken' is displayed on the screen, The user clicks on the artificial facility in the photo to initiate the positioning operation. The system will compare the vertical ratio of the artificial facility to the wall' and the auxiliary information can be manually set. A simple understanding of color shapes or other numerical symbols. In summary, the present invention exhibits features that are different from conventional techniques in terms of purpose, means, and efficacy. However, it should be noted that the above embodiment is only 14 201030312 The present invention is not limited by the scope of the present invention, and the scope of the present invention should be as described in the following claims. FIG. 1 is a schematic view of the present invention. Figure 2 is a schematic diagram of the environment of the present invention in use. Figure 3 is a flow chart of the scheduling system of the present invention. Figure 4 is a street corner diagram of the scheduling system of the present invention. Figure 6 is a schematic view of the environment of the present invention. Figure 7A is a schematic diagram of the coordinates of the travel scheduling system of the present invention. Figure 8B is a schematic diagram of the coordinates of the travel scheduling system of the present invention. A schematic diagram of the coordinates of the scheduling system of the present invention. [Main component symbol description] ❹ Portable positioning system 1 Processor 10 Memory 2 0 Meeting Mouth database 22 Software program 24 Measuring device 30 Street corners 41, 42 Artificial structures or artificial facilities 43 Intersections 4 贞 measured values 44, 45, 48, 91, 92, 93, 94, 91a, 92a, 93a, 15 201030312 94a, 1 (H, 102, 103, 104 distant measured value 4 6 buildings 47, 49, 7 b 72, 73, 74 users 50 auxiliary information 61 famous landmarks 62 intersection intersection 80 wireless transmission device 100

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Claims (1)

201030312 VII. Patent application scope: 1. A method for locating intersection intersections, which is used for a positioning system. The positioning system has a intersection intersection database and a display device for a user to know the location of one of the intersections currently located. The intersection method of the intersection includes the following steps: (A) obtaining at least one intersection detection value at one of the intersection intersections, each intersection detection value corresponding to one of the top points of an artificial building, each intersection detection The measured value includes a vertical value about the top point. If the artificial building is not a famous landmark, the artificial structure is located at the intersection of the intersection or at the intersection of the intersection; (B) matching in the intersection intersection database And at least one intersection location of the at least one intersection detection value; and (C) outputting the image of the at least one intersection location to the display device. 2. The method of claim 1, wherein the vertical value is a pitch angle. 3. The method of claim 1, wherein the vertical value is a distance. 4. The method of claim 2, wherein each intersection detection value further comprises a horizontal value, wherein the horizontal value is a horizontal angle value based on the north and south poles. 5. The method of claim 1, wherein the vertical value is a pitch angle based on a horizontal plane. 6. The method of claim 1, wherein the other intersection of the intersection is located at a corner of the street facing the premises. 7. The method of claim 1, further comprising: if the artificial structure is a famous landmark and if the intersection detection value cannot be measured there, then 17 201030312 and within a certain distance from the location A detection value can be measured, and at least one intersection location that matches the detection value is compared in the intersection intersection database. 8. The method of claim 4, wherein the level value is a level value of the tip point of the artificial structure. 9. The method of claim 4, wherein the level value is obtained by a magnetic field sensing device. 10. The method of claim 4, wherein the vertical value is obtained by a tilt sensing device. 11. The method of claim 1, wherein the at least one intersection detection value is one, two, three or four. 12. The method of claim 1, wherein the image of the at least one location is an image that allows the user to rotate 360 degrees to select a viewing angle. 13. The method of claim 1, wherein when the display device outputs an image of the at least one intersection location, the horizontal value is considered to output an image of the intersection location at which the viewing point is the starting point. 14. The method of claim 1, wherein each intersection detection value further comprises a set of horizontal angle values and wherein the intersection intersection database comprises a difference between the set of horizontal angle values and a horizontal angle value. 15. The method of claim 1, further comprising: (D) obtaining at least one auxiliary information; (E) comparing the at least one auxiliary information with the at least one intersection in the intersection database Detecting the at least one final location; and (F) outputting the at least one final location. 18 201030312 16. The method of claim 15, wherein the auxiliary information comprises a famous landmark information, a green space information, a building exterior color information, a building exterior lighting information, a junction form, or a building Style information. 17. The method of claim 1, wherein the intersection is a crossroad, a T-junction, a ring, or a three-way intersection. 18. A method for locating intersection intersections, which is used for a positioning system, the positioning system has a intersection intersection database and a display device for a user to know the location of a intersection where the intersection is currently located, and the method for locating the intersection intersection includes The following steps are as follows: (A) At least one intersection detection value is obtained at one of the intersections, and each intersection detection value corresponds to an artificial structure, and each intersection detection value includes a vertical value about the artificial structure and (B) obtaining at least one auxiliary information; (C) comparing at least one intersection location of the at least one auxiliary information and the at least one intersection detection value in the intersection intersection database; (D) The display device outputs an image of the at least one intersection location corresponding to the horizontal value. 19. The method of claim 18, wherein the intersection database contains a difference between the horizontal value and a horizontal angle value. 20. A portable positioning system for a user to know the location of a current intersection, the portable positioning system comprising: a processor; a memory, the memory stores a intersection intersection database And a software program; and a measuring device, the measuring device can measure at least one intersection detection value; 19 201030312 When the processor executes the software program of the memory, the following mechanism can be achieved: (A) The at least one intersection detection value, each intersection detection value corresponding to one of the top points of an artificial structure, wherein each intersection detection value includes a vertical value about the top point; (B) at the intersection intersection database And comparing (at) an image corresponding to the at least one intersection location; and (C) outputting an image corresponding to the at least one intersection location. 21. The portable positioning system of claim 20, wherein the vertical value is a pitch angle value. 22. The portable positioning system of claim 21, wherein each intersection detection value further comprises a horizontal value, wherein the horizontal value is a horizontal angle value based on the north and south poles. 23. The portable positioning system of claim 20, wherein the measuring device is an electronic compass. 24. The portable positioning system of claim 20, wherein the at least one intersection detection value is one, two, three or four. 25. The portable positioning system of claim 20, wherein the vertical value is obtained by a tilt sensing device. 26. A portable positioning system for a user to know the location of a current intersection, the portable positioning system comprising: a processor; a memory, the memory stores a intersection intersection database And a software program; and a measuring device, the measuring device can measure at least one intersection detection value; 20 201030312. When the processor executes the software program of the memory, the following mechanism can be achieved: (A) Obtaining at least one intersection detection value, each intersection detection value corresponding to a top point of an artificial structure, wherein each intersection detection value includes a vertical value about the top point; (B) obtaining at least one auxiliary information; (C) comparing, at the intersection intersection database, the at least one intersection location that simultaneously matches the at least one auxiliary information and the at least one intersection detection value; and the (D) output corresponding to the image of the at least one intersection location . 27. An indoor intersection intersection positioning method is used for a positioning system. The positioning system has a intersection intersection database for a user to know the location of a intersection where the intersection is currently located. The method for positioning the intersection includes the following steps: (A) at least one intersection detection value is obtained at one of the intersection intersections, each intersection detection value corresponds to a manual facility, and each intersection detection value includes a vertical value about the artificial facility; and β ( B) Aligning at least one intersection location that meets the detection value of the at least one intersection in the intersection intersection database. 28. The method of claim 27, wherein the artificial device is attached to a wall having an upper edge and a lower edge. 29. The method of claim 28, wherein the vertical value is a vertical proportional relationship of the artificial facility relative to the wall. 30. The method of claim 28, wherein each intersection detection value further comprises a horizontal value, wherein the horizontal value is a horizontal angle value based on a north-south benchmark. The method of claim 27, wherein the number of the at least one intersection detection value is one, two, three or four. 32. The method of claim 27, wherein the image of the at least one intersection location is an image that allows the user to rotate 360 degrees to select a viewing angle. 33. The method of claim 27, wherein when the display device outputs an image of the at least one intersection location, the horizontal value is considered to output an image of the intersection location at which the viewing point is the starting point. 34. An indoor intersection intersection positioning method is used for a positioning system. The positioning system has a intersection intersection database for a user to know the location of a intersection where the intersection is currently located. The method for positioning the intersection includes the following steps. : (Α) At least one intersection detection value is obtained at one of the intersections, each intersection detection value corresponds to a manual facility, and each intersection detection value includes a vertical value about the artificial facility; Obtaining at least one auxiliary information; and (C) comparing at least one intersection location of the at least one auxiliary parameter information and the at least one intersection detection value in the intersection intersection database. twenty two