JP2007272661A - Operation monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that the position of a mobile body passing along a predetermined route is displayed based on GPS positioning, thereby generating an operation locus deviating from the predetermined route. <P>SOLUTION: A registered point constant storage part 14 stores registered point area information associating identification numbers of predetermined points on an operation route with latitude/longitude information representing predetermined areas including the respective points. A registered point passage determination part 15 refers to the registered point area information, and if latitude/longitude information measured by a GPS receiver 13 on a mobile body 11 is in any area of the registered point area information, determines that the mobile body has passed the predetermined point corresponding to the area, and converts the latitude/longitude information measured by the GPS receiver 13 into the identification number of the predetermined point, which is transmitted by a transmission part 11 to a base station 12. The base station 12 displays operation position information about the mobile body 11 on a terminal screen according to the received identification number. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is a system that uses a Global Positioning System (Global Positioning System, hereinafter referred to as GPS). A mobile body that has a GPS receiver mounted on a mobile body that passes through a predetermined route and is measured by the GPS receiver. The operation position information is transmitted to the base station and displayed on a monitoring terminal installed in the base station.

Conventionally, as a technique for measuring the position of a moving object, a technique using GPS is widely known. However, since GPS performs positioning by communication with a satellite, a positioning error peculiar to GPS occurs depending on the state of the propagation path of radio waves such as changes in weather conditions. Therefore, it has been necessary to use a gyro sensor or a vehicle speed sensor together with GPS to correct the error (see, for example, Patent Document 1).
Also, a method has been implemented in which a GPS positioning error is calculated from the absolute position of the reference point and the GPS positioning position, and the positioning position of the mobile station is corrected by the calculated positioning error (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 7-301541 JP-A-6-289120

  However, a system in which a GPS receiver is mounted on a moving body that passes a predetermined route, and the operation position information of the moving body measured by the GPS receiver is transmitted to the base station and displayed on a monitoring terminal installed in the base station. Then, when the GPS positioning error is large, even if correction is performed, for example, as shown in FIG. 6A, a position off the road on which the vehicle actually travels is erroneously displayed, or as shown in FIG. As described above, problems such as erroneous display of a moving body that actually travels on the route y remain on the different route x.

  The present invention solves such a conventional problem, and accurately displays the position of a moving body traveling on a predetermined route on the operation route and realizes operation monitoring along the operation route. Objective.

  In order to achieve the above object, the present invention is an operation monitoring system in which a GPS receiver is mounted on a moving body that travels along a predetermined operation route, and monitors the operation position. A registration point constant storage unit that stores registration point area information that associates a point identification number with latitude and longitude information that represents a predetermined area including the point, and refers to the registration point area information. If the latitude / longitude information measured by the receiver is in any region of the registered point area information, it is determined that the mobile body has passed the predetermined point corresponding to the region, and the GPS The latitude / longitude information measured by the receiver is converted into an identification number of the predetermined point, and a registration point passage determination processing unit that creates passage information, a transmission unit that transmits the passage information, and the passage information A receiving information processing unit that creates operating position information based on the passing information, and a display unit that displays operating status on a terminal screen based on the operating position information. Features.

  Further, the passage information includes an identification number of the predetermined point where the passage of the moving body is determined and a number for identifying the moving body.

  The reception information processing unit stores latitude / longitude conversion information in which the identification number of the predetermined point is associated with the latitude / longitude information of the point, and the identification number of the point in the received passing information is stored in the latitude It is characterized by referring to the longitude conversion information and converting it into latitude / longitude information of the point.

  Moreover, the said operation position information has the number which identifies the said mobile body among the latitude longitude information of the said point converted by the said reception information processing part, or the identification number of the said point among the said passage information, and the said passage information. It is characterized by.

  Further, the operation status displayed on the display unit is based on the operation position information, and shows a passing record of the moving body at a predetermined point on the operation route on a route map. .

  In the registered spot area information, an area including a predetermined spot on the operation route is a range that compensates for a measurement error that occurs when the spot is measured by GPS, and a shape that takes into account geographical conditions is set. It is characterized by doing.

  The mobile unit includes the registration point constant storage unit, the registration point passage determination processing unit, and the transmission unit, and the base station includes the reception unit, the reception information processing unit, and the display unit. Features.

  Further, the operation monitoring system is characterized in that importance is provided for each of the predetermined routes, and the monitoring is differentiated for each route.

By the above means, the present invention mounts a GPS receiver on a moving body that passes a predetermined route, transmits the operation position information of the moving body measured by the GPS receiver to the base station, and is installed in the base station. In the operation monitoring system to be displayed on the monitoring terminal, it is possible to correct the error of the GPS positioning information, display an accurate operation locus along the predetermined operation route on the monitoring terminal, and further, the following effects Also play.
・ Because the operation route is determined in advance, it is possible to limit the points where the operation position needs to be grasped, and it is only necessary to collect the operation information of the moving object at the point where the operation position is desired. Therefore, efficient information collection can be realized by avoiding unnecessary transmission of information to the base station.

・ Since the transmission information from the mobile unit is only the point number, the amount of transmission information for specifying the point is greatly reduced compared to the case where the latitude and longitude information is transmitted as it is. It becomes possible to add more information.
・ Because points where the operation position needs to be determined are set in advance, for example, it is possible to monitor important operation routes and general routes separately, thereby realizing more practical and strategic operation monitoring.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, the functional configuration of a system according to the present invention will be described with reference to FIG. Reference numeral 11 denotes a moving body, which includes a transmission unit 16, a registration point passage determination processing unit 15, a GPS reception unit 13, and a registration point constant storage unit 14. Here, the mobile body 11 is a target for operating a predetermined route such as a route bus or a truck for collecting and delivering luggage, and monitoring the operation in the present invention. Reference numeral 12 denotes a base station, which includes a receiving unit 17, a received information processing unit 18, and a display unit 19. In addition, the base station is a place that monitors the operation status of the mobile body 11 in the present invention, such as a sales office that monitors a route bus or a collection / delivery center that monitors the collection / delivery status of luggage.

  The GPS receiving unit 13 receives radio waves from GPS satellites and measures the latitude and longitude of the position of the mobile body 11. The registered point constant storage unit 14 sets a predetermined area around the point where the operation position of the moving body 11 on the operation route needs to be grasped, and the latitude and longitude information representing the area are associated with each other. The point area information 71 is stored. An example of the configuration of the registration point area information 71 is shown in FIG. 7 and will be described in detail later. The registration point passage determination processing unit 15 collates the latitude / longitude information measured by the GPS reception unit 13 with the registration point area information 71, and the latitude / longitude information is in any region of the registration point area information 71. Then, the passage of the mobile body 11 at a point corresponding to the area is determined, the latitude / longitude information measured by the GPS receiving unit 13 is converted into a point number, and the passage information 81 is created. The passage information 81 represents a passage record of the mobile body 11 that is determined to pass at a point where the operation position of the mobile body 11 on the operation route needs to be grasped. An example of the configuration of the passage information 81 is shown in FIG. 8 and will be described in detail later. The transmission unit 16 transmits the passage information 81 to the base station 12.

  The receiving unit 17 receives the passage information 81 transmitted from the mobile body 11. The reception information processing unit 18 creates operation position information 91 based on the passage information 81. The operation position information 91 represents the operation position and operation status of the mobile body 11 obtained by converting the point number of the passage information 81 into the absolute latitude / longitude information of the point. When converting the point number into the latitude / longitude information of the point, the latitude / longitude conversion information 101 is referred to. For the operation position information 91, an example of the configuration is shown in FIG. 9, and for the latitude / longitude conversion information 101, an example of the configuration is shown in FIG. 10, which will be described in detail later. In the present embodiment, the operation position information 91 converts the spot number into latitude and longitude, but it may be displayed as the spot number without being converted into latitude and longitude. On the terminal screen of the base station 12, the display unit 17 is capable of grasping one of the operation positions on the map or route map representing the operation route on the map or route map and the operation position information 91. When it is determined that the vehicle has passed a necessary point, the identification number of the moving object 11 is displayed together with the position of the point. Each point is specified on a map or route map by latitude and longitude. FIG. 5 shows an example of display on the terminal screen. However, the display information is not limited to the identification number of the mobile object 11 and may be displayed with predetermined information such as the passage time as shown in the display example. Good. In addition, when the position information of the moving body 11 in the operation position information 91 is left as a spot number, the spot number and the map or route map are linked so that the position in the map or route map can be specified. That's fine.

  Next, the configuration of the system according to the present invention will be described with reference to FIG. The mobile body 11 is equipped with a vehicle-mounted device 24, a GPS receiver 23 connected to the vehicle-mounted device, and a digital wireless device 25. The base station 12 is connected to the digital wireless device 26 and the wireless collection / delivery server 27 by serial connection, and the wireless collection / distribution server 27, the operation processing server 28, and the operation management terminal 29 are connected by LAN.

  The GPS receiver 23 receives radio waves from GPS satellites and measures the latitude and longitude of the position of the mobile body 11. The in-vehicle device 24 holds the registration point area information 71, determines the operation position of the mobile body 11 based on the latitude / longitude information transmitted from the GPS receiver 23, and generates passage information 81. The digital wireless device 25 performs data transmission / reception with the in-vehicle device 24 and transmits passage information 81 toward the base station 12.

  The digital radio 26 installed on the base station 12 side receives information from the mobile unit 11. The wireless collection and distribution server 27 performs information collection and distribution control with the in-vehicle device 24 via the digital wireless devices 25 and 26, and determines whether the information from the in-vehicle device 24 is passage information. The operation processing server 28 is connected to the wireless collection and distribution server 27, and creates the operation position information 91 of the mobile body 11, stores and manages the operation position information 91, and stores and maintains the map data for displaying the terminal screen. The operation management terminal 29 displays a map and operation information based on operation position information 91 and map data stored in the operation processing server 28.

  Next, a point where the operation position according to the present invention needs to be grasped and a passage determination area at the point will be described with reference to FIGS. 3 and 4. As shown in FIG. 3, any point where the operation status is to be grasped is set on the operation route, such as an intersection or a branch point of a route, and an identification number (point number) of each point is set as 501, 502... Give. In addition, when providing importance such as an important route and a general route in the operation route, points on the important route = 501, 503, 505, points on the general route = 501 (overlapping), 502, 504 Similarly, since it is possible to distinguish routes by point numbers, it may be possible to monitor important routes and general routes differently, for example, by displaying them separately on the terminal screen.

  FIGS. 4A and 4B are examples of pass determination areas for the points 503 and 504 set as described above. The passage determination area is represented by latitude and longitude information, and is stored as registered spot area information 71 in association with the spot number. In this embodiment, the passage determination area is set so that the passage determination areas at the respective setting points do not overlap in consideration of geographical conditions such as the distance between the setting points and the shape of the road in addition to the error of the GPS positioning information. Is done. Therefore, when considering the geographical conditions more, or when setting a unique area in consideration of other conditions, the shape is not limited to a square or a rectangle, and the routes such as those shown in FIGS. Various shapes such as the same shape as some shapes and other shapes such as a T shape and an S shape can be set.

  Then, the example of a display in the operation management terminal 29 of the base station 12 concerning this invention is demonstrated using FIG. FIG. 5 is a display example of the passage result of the mobile body 11 at the points 501 and 502 in FIG. In FIG. 5, it is displayed on the route map that the mobile body 11 with the vehicle number 5525 has passed the point 501 and the mobile body 11 with the vehicle number 345 has passed the point 502. The display information is not limited to this, and various information can be added as in the operation position information 91.

  Next, the configuration of each piece of information according to the present invention will be described with reference to FIGS.

  FIG. 7 is a configuration example of the registered spot area information 71, and the latitude / longitude information for specifying the passage determination area at the spot is associated with the spot where the operation position needs to be grasped. In this embodiment, a rectangular area is set as the passage determination area as shown in FIGS. 4A and 4B, and the area is specified by the latitude and longitude information of the upper right and lower left two points of the rectangle. It is possible. In addition, like (c) and (d) of FIG. 4, when it cannot specify with 2 points | pieces, it is good to comprise the latitude longitude information of the number of points which can be specified.

  FIG. 8 shows an embodiment of the passage information 81. In this embodiment, the passage type for determining whether the passage information is used and the identification information of the mobile body 11 determined to be passage. It consists of a vehicle number, a passage time acquired when the passage information 81 is created, a spot number of a spot determined to pass, and a traveling direction. Note that the passing information is not limited to this, and it is preferable to add necessary information such as a driver's name according to circumstances. In addition, as a method different from the above-described method for monitoring the differentiated important route from the general route, the route information including the route information indicating the importance of the route is included in the passing information so that the route can be distinguished more directly. Good.

  FIG. 9 shows an example of the operation position information 91. The vehicle number of the mobile body 11 determined to pass, the latitude / longitude information of the point determined to pass, the passing time when the passing information was created, and the progress The information is displayed on the screen of the operation management terminal 29. The operation position information 91 is not limited to this, and necessary information may be added in the same manner as the passage information 81. Note that the latitude / longitude information of the point where the passage is determined may remain as the point number.

  FIG. 10 shows an example of the latitude / longitude conversion information 101, in which the point number of the point where the operation position on the operation route needs to be grasped and the absolute latitude / longitude information of the point are associated with each other. It is referenced to convert the point number into latitude and longitude information at the time of creation.

  Next, the operation of the system according to the present invention will be described based on the flowcharts of FIGS. 11 and 12.

  First, the operation of the moving body 11 will be described with reference to FIG. First, the GPS receiver 23 measures latitude and longitude information and transmits it to the in-vehicle device 24 (step 111). The in-vehicle device 24 refers to the registration point area information 71 and checks whether the latitude / longitude information falls within any region (step 112). If it does not fall within any range (No in step 112), the process ends. If it falls within one of the ranges (Yes in step 112), the corresponding spot number is acquired (step 113), the passage information 81 is created and transmitted to the digital radio device 25 (step 114). The digital radio device 25 transmits the passage information 81 to the base station 22 (step 115), and the process of the mobile unit 11 is completed.

  Next, the operation of the base station 12 will be described with reference to FIG. First, the digital wireless device 26 receives the information transmitted from the mobile unit 11 and transmits it to the wireless collection and distribution server 27 (step 121). The wireless collection / delivery server 27 checks whether the information is passing information 81 by looking at the information type of the received information (step 122). If it is not the passage information 81 (No in step 122), the process ends. When it is the passage information 81 (Yes in Step 122), the information is transmitted to the operation processing server 28, and the operation processing server 28 refers to the latitude / longitude conversion information 101 and converts the point number into the latitude / longitude information (Step 123). ), The operation position information 91 is created based on the information of the passage information 81 (step 124). The operation position information 91 is transmitted to the operation management terminal 29, and the operation status is displayed on the screen together with the map and route map (step 125).

  With the above configuration, it is possible to efficiently and practically monitor a moving body that passes through a predetermined route.

  The present invention develops an in-vehicle facility having a GPS function for grasping an operation position of a moving body passing through a predetermined route, and an operation monitoring system for realizing operation monitoring of the moving body passing through a predetermined route, It can be used in the industrial field for sale.

Functional block diagram of an operation monitoring system according to an embodiment of the present invention The system block diagram of the operation monitoring system which concerns on one Example of this invention The figure showing the point which needs the operation monitoring which concerns on one Example of this invention (A) And (b) is a figure showing the point which needs the operation monitoring which concerns on one Example of this invention, and a passage determination area | region, (c) And (d) is a figure which shows the deformation | transformation. The terminal screen figure of the operation monitoring system concerning one example of the present invention. The figure which shows the GPS positioning result by the prior art which concerns on this invention Data configuration diagram of registration point area information according to an embodiment of the present invention Data structure diagram of passage information according to an embodiment of the present invention The data block diagram of the operation position information which concerns on one Example of this invention Data configuration diagram of latitude and longitude conversion information according to an embodiment of the present invention The flowchart showing operation | movement of the moving body which concerns on one Example of this invention. The flowchart showing operation | movement of the base station which concerns on one Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Mobile body 12 Base station 14 Registration point constant memory | storage part 15 Registration point passage determination process part 16 Transmission part 17 Reception part 18 Reception information processing part 19 Display part 71 Registration point area information 81 Passage information 91 Operation position information 101 Latitude / longitude conversion information

Claims (8)

It is an operation monitoring system that mounts a GPS receiver on a moving body that passes a predetermined operation route and monitors the operation position,
A registration point constant storage unit that stores in advance registration point area information that associates an identification number of a predetermined point on the operation route with latitude and longitude information that represents a predetermined region including the point;
When the latitude / longitude information measured by the mobile receiver's GPS receiver is within one of the regions of the registered point area information with reference to the registered point area information, the predetermined point corresponding to the region A registration point passage determination processing unit that converts the latitude / longitude information measured by the GPS receiver into an identification number of the predetermined point and creates passage information;
A transmission unit for transmitting the passage information;
A receiver for receiving the passage information;
A reception information processing unit that creates operation position information based on the passage information;
A display unit for displaying the operation status on the terminal screen based on the operation position information;
Operation monitoring system characterized by comprising The operation monitoring system according to claim 1, wherein the passage information includes an identification number of the predetermined point where the passage of the moving body is determined and a number for identifying the moving body. The reception information processing unit stores latitude / longitude conversion information in which the identification number of the predetermined point is associated with the latitude / longitude information of the point,
The operation monitoring system according to claim 1 or 2, wherein an identification number of a point in the received passing information is converted into latitude / longitude information of the point with reference to the latitude / longitude conversion information. The operation position information includes an identification number of the point in the passage information or latitude / longitude information of the point converted by the reception information processing unit, and a number that identifies the moving body in the passage information. The operation monitoring system according to any one of claims 1 to 3 The operation status displayed on the display unit is based on the operation position information, and shows a passing record of the moving body at a predetermined point on the operation route on a route map. The operation monitoring system according to any one of 1 to 4 In the registered point area information, an area including a predetermined point on the operation route is a range that compensates for a measurement error that occurs when the point is measured by GPS, and sets a shape in consideration of geographical conditions. The operation monitoring system according to claim 1, wherein The mobile unit includes the registration point constant storage unit, the registration point passage determination processing unit, and the transmission unit, and the base station includes the reception unit, the reception information processing unit, and the display unit. The operation monitoring system according to claim 1 2. The operation monitoring system according to claim 1, wherein the operation monitoring system provides importance for each of the predetermined routes, and performs differentiated monitoring for each route.