JP2007074041A - Position search device and position search system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a position search device and a position search system which can enable to positively confirm a present position by an inexpensive method, in such a way that an RF tag recording ID information for specifying an attached object is attached on the object and the ID information is read with a reader/writer, thereby enabling the display of the position in association with map information stored in the reader/writer. <P>SOLUTION: This position search device 35 is configured so as to be provided with a reader or reader/writer 100 for reading the information recorded in the RF tag 200, and a position search unit 35b for searching the position information of an electric pole 31 based on the ID information. The unit 35b is provided with a storage 40 for storing the map information indicating the position of the electric pole corresponding to the ID information, a display unit 42 displaying the corresponding map information, a transmitter/receiver 43 for playing a role of transmission and reception of the information to or from the unit 35b, a control unit 41 for controlling the reader or reader/writer 100, the storage 40, the transmitter/receiver 43, and the display unit 42. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a position search apparatus and a position search system, and more particularly to a position search apparatus and a position search system that determine a current position based on RF tag information.

In power-related work that requires work in mountainous areas or remote areas, the person in charge must go to the mountainous areas or remote areas in order to periodically inspect and maintain power poles and transmission lines. In addition, in the case of electric power-related work, the scope of management is vast, so it often goes to the site by car, walk, etc. depending on the map, and when checking power poles and power transmission towers in the forest off the road There is also. Currently, GPS has been developed to identify the current position by receiving radio waves from an artificial satellite. Therefore, the current position can be specified to some extent as long as it is an area covered by the GPS. However, in mountainous areas, there are not only roads displayed by GPS, but also many places that are not described on the map. Therefore, workers who work in such an environment often lose their current position and are unable to reach their destinations or are often lost. You can also check the current position by communicating with the information management center using a mobile phone or wireless device, but if you encounter a situation where you cannot confirm where the current position of the worker is, It is difficult for the side to specify the current position of the worker.
As a conventional technique, Patent Document 1 discloses a method for providing position information of a mobile object to which a wireless ID tag is attached by using a plurality of wireless ID readers arranged at predetermined locations. When one wireless ID reader enters a range of a predetermined distance from one of the ID readers, this one wireless ID reader reads the tag ID recorded on the wireless ID tag attached to the moving body, and this tag The position information providing apparatus stores the reader ID of one wireless ID reader in association with the tag ID, and the position information providing apparatus stores the reader recorded in association with the tag ID. A technique for providing a user terminal with position information of a moving object corresponding to a tag ID based on the ID is disclosed.
JP 2004-31289 A

However, in the conventional technique disclosed in Patent Document 1, a plurality of wireless ID readers are arranged in a range where a mobile object equipped with a wireless ID tag moves, and which wireless ID reader stores information on the wireless ID tag of the mobile object. Since the position of the moving body is specified depending on whether it has been read, it is necessary to install a large number of wireless ID readers, which increases the cost of the apparatus. Moreover, there is a problem that the range in which the mobile body can move is limited to the range in which communication with the wireless ID reader is possible.
In view of such a problem, the present invention attaches an RF tag that records ID information for identifying an attachment object to the attachment object, and reads the ID information with a reader, thereby corresponding to map information stored in the reader. An object of the present invention is to provide a position search device and a position search system that can display a position and can confirm the current position reliably by an inexpensive method.
Another object is to minimize the memory capacity in the reader by receiving new map information from the information management center.

In order to solve the above-mentioned problem, the present invention provides the recording information of the information recording medium which is provided in the mounting object scattered over a wide area range and records at least ID information of the mounting object. A reader or reader / writer for reading, and a position search unit that searches for position information of the attachment object based on the ID information, and the position search unit indicates a position of the attachment object corresponding to the ID information. A storage unit that stores map information; a display unit that displays corresponding map information; and a control unit that controls the reader or reader / writer, the storage unit, and the display unit. Map information indicating the position of the attachment object corresponding to the ID information recorded in the information recording medium read by the reader / writer is retrieved from the storage unit, and the position information of the attachment object is displayed. And displaying on.
The position search apparatus of the present invention includes a reader or reader / writer and a position search unit. The position search unit includes a storage unit, a display unit, and a control unit, reads out map information corresponding to the ID information read by the reader or reader / writer from the storage unit, and displays the contents on the display unit. It is. Therefore, the operator can confirm the current position of the attachment object in which he is present by looking at the map displayed on the display unit.
According to a second aspect of the present invention, the position search unit further includes a transmission / reception unit that controls transmission and reception of information, and the control unit reads ID information recorded on the information recording medium by the reader or reader / writer, and the ID information As a result of searching the storage unit for the map information indicating the position of the attachment object corresponding to, when it is detected that the map information corresponding to the ID information is not stored in the storage unit, Transmitting the ID information to an information management center that manages map information, receiving new map information indicating the position of the attachment object corresponding to the ID information from the information management center, and storing the new map information in the storage unit. Features.
In the apparatus according to the first aspect, the current position can be confirmed in the range of the map information stored in the storage unit. However, since the capacity of the storage unit is limited, the position of the attachment object may be other than the map information stored in the storage unit. Accordingly, in the present invention, in such a case, a transmission / reception unit is further provided to exchange information with the information management center, and the ID information of the attachment object is transmitted to the information management center, so that the ID information is transmitted from the information management center. Map information corresponding to is sent.

According to a third aspect of the present invention, the map information includes at least a nearby road and a target object on which the attachment object is arranged, and a position of the attachment object corresponding to the ID information.
The map information is displayed in the form of a map on the display unit of the position search unit. Therefore, the information stored therein needs at least the position of the road, the target object (for example, building, etc.) and the attachment target object in the vicinity where the attachment target object is arranged.
According to a fourth aspect of the present invention, when the control unit retrieves map information indicating the position of the attachment object corresponding to the ID information from the storage unit and displays the map information on the display unit, the attachment object corresponds to the ID information. The position is displayed by blinking or color-coded.
It is necessary to clearly display where the installation target on which the operator is present is on the displayed map. Therefore, in the present invention, the place is blinked or displayed in a different color from other parts.
According to a fifth aspect of the present invention, when the attachment object is an inspection object, at least the ID information and the inspection history information of the attachment object are recorded on the information recording medium.
Not all attachment objects to which information recording media are attached are subject to inspection. Therefore, in the present invention, inspection history information is recorded in addition to at least ID information on an information recording medium attached to an attachment subject to be inspected.

According to a sixth aspect of the present invention, the control section can update the inspection history information via the reader / writer.
In the inspection history information, the date of inspection of the mounting object to be inspected is recorded. When a new check is made, the new record is recorded and updated while the previous record remains.
According to a seventh aspect of the present invention, the transmission / reception unit includes a wireless device, a mobile phone, or a portable information terminal.
In order to exchange information with the information management center, it is necessary to communicate wirelessly. As the means, there are a wireless device, a mobile phone or a portable information terminal.
According to an eighth aspect of the present invention, the information recording medium is a non-contact or contact type IC card or RF tag.
In order to manufacture the information recording medium at a low cost, it is necessary to have a configuration without a power supply unit. For this purpose, a method of receiving an external carrier wave and utilizing the energy has to be adopted. Therefore, in the present invention, a non-contact or contact type IC card or RF tag satisfying these conditions is provided.
Claim 9 is the position search device according to any one of claims 1 to 8, an information recording medium in which ID information of the attachment object is recorded, an information management center that manages all map information, The information management center receives the ID information transmitted from the position search device, searches for map information indicating the position of the attachment object corresponding to the ID information, and transmits the map information to the position search device. It is characterized by.
The position search system of the present invention comprises a position search device, an information recording medium, and an information management center. Here, there are a plurality of information recording media to be attached to at least an attachment object to be inspected. That is, the feature of the present invention is that an inexpensive information recording medium is attached to a plurality of attachment objects, and exchange of information with the information management center is performed with the position search device. Thereby, the whole system can be constructed at low cost.

According to the first aspect of the present invention, the map information indicating the position of the attachment object corresponding to the ID information recorded on the information recording medium read by the reader or the reader / writer is retrieved from the storage unit and the position of the attachment object is obtained. Since the information is displayed on the display unit, the current position can be confirmed if a nearby attachment object is reached.
According to a second aspect of the present invention, the position search unit further includes a transmission / reception unit, and when the map information corresponding to the ID information is not stored in the storage unit, the transmission / reception unit transmits the ID information to the information management center, and the ID Since new map information indicating the position of the attachment object corresponding to the information is received from the information management center and stored in the storage unit, the storage capacity of the storage unit can be minimized, and new map information can be stored. Can be acquired.
Further, according to claim 3, the map information includes at least a nearby road and a target where the attachment object is arranged and a position of the attachment object corresponding to the ID information. Can be accurately determined.
According to a fourth aspect of the present invention, when the map information indicating the position of the attachment object corresponding to the ID information is retrieved from the storage unit and displayed on the display unit, the position of the attachment object corresponding to the ID information is blinked or color-coded. The current position can be easily confirmed.
Further, in claim 5, since at least ID information and inspection history information of the attachment object are recorded on the information recording medium, it is possible to confirm the inspections conducted in the past and set an appropriate inspection interval. be able to.
Further, since the inspection history information can be updated via the reader / writer, the latest inspection record can be easily recorded.
According to the seventh aspect of the present invention, since the transmission / reception unit includes a wireless device, a cellular phone, or a portable information terminal, it is possible to communicate with the information management center by simple means.
According to the eighth aspect of the present invention, since the information recording medium is a non-contact or contact type IC card or RF tag, a power supply is not required, so that maintenance and inspection can be facilitated and can be configured at low cost.
Further, in the ninth aspect, since the position search system includes a position search device, an information recording medium, and an information management center, what is installed most often is an inexpensive information recording medium. Can be built inexpensively.

Hereinafter, the present invention will be described in detail using embodiments shown in the drawings. However, the components, types, combinations, shapes, relative arrangements, and the like described in this embodiment are merely illustrative examples and not intended to limit the scope of the present invention only unless otherwise specified. .
FIG. 1 is a block diagram showing a configuration of a general reader / writer. The reader / writer 100 includes a control unit 2 that controls the operation of the reader / writer 100 as a whole, firmware that records a procedure for operating the control unit 2, a memory 3 that stores the read data, and data from the control unit 2 as a carrier wave. , A power amplifier 7 that amplifies a power supply signal that is an AC signal from the control unit 2 and a write command from the modulator 4, and a binary signal from a carrier wave received from the loop antenna 9. A demodulator 8 that converts the data into digitized data, and a loop antenna 9 that transmits and receives power carrier waves and data with an RF tag (not shown). By omitting the modulator 4 from the reader / writer 100, a read-only reader can be configured.
FIG. 2 is a block diagram showing the configuration of the RF tag. The RF tag 200 of the present embodiment receives an antenna 20 that transmits and receives data using a power carrier wave from the reader / writer 100, a transmission / reception circuit 21 that generates a write command read command, and a power carrier wave from the antenna 20. A power generation circuit 22 that rectifies and converts to DC power, a memory 23 that manages storage of control firmware and data, a modulator 24 that modulates a transmission command from the control unit 26 with a carrier wave, and a transmission / reception circuit 21 The demodulator 25 converts the carrier wave data from the data into binarized data, and the control unit 26 that controls the overall operation of the RF tag 200.

Next, each operation will be described with reference to FIGS. 1 and 2 together. The reader / writer 100 starts an operation according to a program stored in the memory 3 after the initial operation of the control unit 2 when a power supply (not shown) is turned on. First, initialization is performed. Next, the control unit 2 alternately transmits a power supply signal to be supplied to the RF tag 200 and a polling signal from the power amplifier 7. The signal is radiated to the outside from the loop antenna 9 as an electromagnetic wave. Next, when the RF tag 200 comes close to the reader / writer 100, the antenna 20 receives the power supply signal, and the power generation circuit 22 rectifies the carrier wave to convert it into DC power. Supply to the circuit. When power is supplied and the control unit 26 is driven, control is started in accordance with a program stored in the memory 23.
Next, the control unit 26 first demodulates the command from the transmission / reception circuit 21 by the demodulator 25, converts it into a binary signal, and analyzes the command. As a result, when it is recognized that it is called, the response is modulated by the modulator 24 and transmitted from the antenna 20 via the transmission / reception circuit 21. The reader / writer 100 receives this response with the loop antenna 9, converts it into a binary code with the demodulator 8, analyzes it with the control unit 2, and recognizes that the RF tag 200 is an RF tag conforming to the standard. Accordingly, polling is performed between the reader / writer 100 and the RF tag 200 thereafter.

  FIG. 3 is a schematic configuration diagram of a position search system according to an embodiment of the present invention. The same components will be described with the same reference numerals. In the present embodiment, an example will be described in which a power pole owned by an electric power company (including a high-voltage wire iron pole) is inspected. This position search system 300 is provided with electric poles (attachment objects) 31 scattered over a wide area range, and an RF tag (information recording medium) on which ID information for identifying and identifying at least the electric poles 31a to 31d is recorded. ) 200, a reader or reader / writer 100 that reads information recorded in the RF tag 200, a position search unit 35 (details will be described later) for searching for position information of the utility pole 31 based on the ID information, and a position search unit 35 And an information management center 37 that receives the map information indicating the position of the utility pole corresponding to the ID information and transmits the map information to the position search unit 35. In the present embodiment, the reader or reader / writer 100 and the position search unit 35 are separated from each other. However, they may be configured integrally. Further, the position search unit 35 is provided with an antenna 34 for communicating with the information management center 37, and an antenna 36 is provided on the information management center 37 side. The RF tag 200 is a non-contact type.

Next, a schematic operation of the position search system according to the embodiment of the present invention will be described. For example, the case where the worker 33 cannot understand the current position while working in the mountainous area 30 will be described. In this example, the RF tag 200 is attached to each of the power poles 31a to 31d, and ID information of each power pole is AB, CD, EF, and GH. If the current position is lost, the worker 33 searches for the nearest utility pole for the time being. Assuming that the utility pole is 31a, the worker 33 takes out the reader / writer 100 that is carried, switches the position search unit 35 to the search mode, and then ID information (about the utility pole 31a recorded in the RF tag 200) ( Read AB). When the read ID information exists in the map information recorded in the position search unit 35, the map information is displayed on a display unit (not shown) (see FIG. 5). The worker can confirm the current position by looking at the map, and can also confirm where the utility pole to be worked is located. When the ID information (AB) does not exist in the map information recorded in the position search unit 35, the worker 33 transmits the ID information (AB) to the information management center 37. When the information management center 37 receives the information, it searches the database for map information corresponding to the ID information (AB), and transmits the information from the antenna 36 to the position search unit 35 of the worker 33. Since the received new map information is displayed on the display unit, the worker 33 can confirm the current position by viewing the map.
As described above, the position search system 300 according to this embodiment includes the position search device 35, the RF tag 200, and the information management center 37. Here, there are a plurality of RF tags 200 to be attached to at least the utility pole to be inspected. That is, in the present embodiment, the inexpensive RF tag 200 is attached to a plurality of utility poles, and information exchange with the information management center 37 is performed with the position search device 35. Thereby, the whole system can be constructed at low cost.

  FIG. 4 is a block diagram of the position search apparatus according to the first embodiment of the present invention. The same components as those in the above embodiment are described with the same reference numerals. The position search device 35 includes a reader or reader / writer 100 that reads information recorded in the RF tag 200, and a position search unit 35a that searches for position information of the utility pole 31 based on the ID information. The search unit 35a includes a storage unit 40 that stores map information indicating the position of the utility pole corresponding to the ID information, a display unit 42 that displays corresponding map information, a reader or reader / writer 100, a storage unit 40, and a display unit 42. And a control unit 41 for controlling. Then, the control unit 41 searches the storage unit 40 for map information indicating the position of the utility pole corresponding to the ID information recorded in the RF tag 200 read by the reader or the reader / writer 100, and stores the location information of the utility pole on the display unit 42. To display. For example, as shown in FIG. 5, a map on which the ID information AB of the utility pole 31 a described in FIG. 3 exists is displayed on the display screen of the display unit 42. Then, the ID information CD, EF, GH of the other power poles 31b, 31c, 31d is displayed along the road 38, and only the ID information AB of the power pole 31a is blinked or displayed to clearly indicate the current position. Display the color different from other parts. As a result, the operator can confirm his / her current position, and can also confirm the relative position with respect to other utility poles. In FIG. 5, only road and utility pole ID information is displayed, but other target or place names may be displayed together.

As described above, the position search device 35 of the present embodiment includes the reader or reader / writer 100 and the position search unit 35a. The position search unit 35a includes a storage unit 40, a display unit 42, and a control unit 41. The map information corresponding to the ID information read by the reader or reader / writer 100 is read from the storage unit 40, and the contents are read out. It is displayed on the display unit 42. Therefore, the operator can confirm the current position of the utility pole in which he is present by looking at the map displayed on the display unit 42.
In this embodiment, since the position search unit 35a does not include a transmission / reception unit that can communicate with the information management center 37, the map information is stored in the storage unit 40 after the operator confirms the current position from the display unit 42. If not, the ID information can be verbally communicated to the information management center 37 by other contact means (for example, a mobile phone or a wireless device), so that a more specific current position can be notified. .

FIG. 6 is a block diagram of a position search apparatus according to the second embodiment of the present invention. The same components as those in the above embodiment are described with the same reference numerals. This position search device 35 is further provided with a transmission / reception unit 43 that controls transmission and reception of information in the position search unit 35b, and the other parts are the same as those in the first embodiment of FIG. To do. Then, the control unit 41 reads the ID information recorded on the RF tag 200 by the reader or the reader / writer 100 and searches the storage unit 40 for map information indicating the position of the utility pole corresponding to the ID information. When it is detected that the corresponding map information is not stored in the storage unit 40, the transmission / reception unit 43 transmits the ID information to the information management center 37, and new map information indicating the position of the utility pole corresponding to the ID information Is received from the information management center 37 and stored in the storage unit 40, and the information is displayed on the display unit 42. In the present embodiment, since the position search unit 35 b includes the transmission / reception unit 43, map information that is not stored in the storage unit 40 can be acquired from the information management center 37 as needed. An interface with the transmission / reception unit 43 may be provided with the broken line 44 of the position search unit 35b as a boundary, and a mobile phone or the like may be connected to the interface from the outside.
As described above, in the first embodiment shown in FIG. 4, the current position can be confirmed only within the range of the map information stored in the reader or reader / writer 100. However, since the capacity of the storage unit 40 is limited, the position of the utility pole may be other than the map information stored in the storage unit 40. Therefore, in this embodiment, in such a case, the information management center 37 is further provided with a transmission / reception unit 43 to transmit / receive information to / from the information management center 37 by transmitting the ID information of the utility pole to the information management center 37. Map information corresponding to the ID information is transmitted.
Although the above description has focused on the treatment when the worker 33 is lost, the present embodiment can be useful even during normal inspection work. That is, during normal work, the worker 33 goes to the utility pole that is the work target, and the reader or reader / writer 100 reads the ID information recorded on the RF tag 200. For example, as shown in FIG. 7, ID information (AB) and inspection history are recorded in the RF tag 200. Here, as the inspection history, years are recorded in chronological order such as 2001.5.7, 2001.12.20, 2002.2.90, 2003.1.15, 2004.4.2. When the operator 33 inspects the utility pole to be inspected and finishes, the reader / writer 100 is brought close to the RF tag 200 and the date of the day is additionally updated. Then, the information of the RF tag 200 is transmitted to the information management center 37 via the transmission / reception unit 43.

  FIG. 8 is a flowchart for explaining the operation at the time of normal inspection in the position search system of the present invention. This will be described with reference to FIG. First, the worker 33 sets an inspection mode using a touch panel (not shown) provided in the display unit 42 of the position search unit 35b (S1). Then, the worker 33 goes to the utility pole to be worked, and reads the ID information recorded on the RF tag 200 by the reader or reader / writer 100 (S2). For example, as shown in FIG. 7, ID information (AB) and inspection history are recorded in the RF tag 200. Here, as the inspection history, years are recorded in time series as 2001.5.7, 2001.12.20, 2002.2.90, 2003.1.15, 2004.4.2. This data is temporarily stored in the storage unit 40, and the contents can be viewed on the display unit 42. Then, the operator 33 determines whether or not the utility pole is at the time of inspection from the inspection history (S3). If it is not the time for inspection (NO route in S3), it moves to the next utility pole. If it is time to check in step S3 (YES route in S3), check the telephone pole to be checked (S4), and when finished, bring the reader / writer 100 close to the RF tag 200 and add the date of the day. Update (S5). At this time, the name of the inspector and other data may be recorded together (S6). Then, the information of the RF tag 200 is transmitted to the information management center 37 via the transmission / reception unit 43 (S7).

  FIG. 9 is a flowchart for explaining the operation when lost in the position search system of the present invention. This will be described with reference to FIG. First, the worker 33 who gets lost searches for a nearby utility pole (S11). When the utility pole is found (YES route in S12), the worker 33 sets the search mode with a touch panel (not shown) provided in the display unit 42 of the position search unit 35b (S13). Then, the reader or reader / writer 100 reads the ID information recorded on the RF tag 200 provided on the utility pole (S14), and searches the storage unit 40 for map information indicating the position of the utility pole corresponding to the ID information. As a result, when it is detected that the map information corresponding to the ID information is not stored in the storage unit 40 (NO route in S15), the transmission / reception unit 43 transmits the ID information to the information management center 37 (S17). ), New map information indicating the position of the utility pole corresponding to the ID information is received from the information management center 37 (S18), stored in the storage unit 40, and the information is displayed on the display unit 42. If it is detected in step S15 that the map information corresponding to the ID information is stored in the storage unit 40 (YES route in S15), the map information is displayed on the display unit 42 (S16). At this time, the display of the ID information is blinked or displayed in a different color from the other parts.

As described above, according to the present invention, the map information indicating the position of the utility pole corresponding to the ID information recorded in the RF tag 200 read by the reader or the reader / writer 100 is retrieved from the storage unit 40 to obtain the location information of the utility pole. Since it displays on the display part 42, if it arrives at the nearby utility pole, the present position can be confirmed.
Further, when the location search unit 35b further includes a transmission / reception unit 43, and map information corresponding to the ID information is not stored in the storage unit 40, the transmission / reception unit 43 transmits the ID information to the information management center 37, and Since new map information indicating the position of the utility pole corresponding to the ID information is received from the information management center 37 and stored in the storage unit 40, the storage capacity of the storage unit 40 can be minimized and a new map can be obtained. Information can be acquired.
Also, the map information includes at least the nearby road where the power pole is located, other targets, and the position of the power pole corresponding to the ID information, so that the current position can be accurately determined by looking at the map. Can do.
In addition, when the map information indicating the position of the utility pole corresponding to the ID information is retrieved from the storage unit 40 and displayed on the display unit 42, the position of the utility pole corresponding to the ID information is displayed blinking or color-coded. The position can be easily confirmed.
In addition, since at least ID information and inspection history information of the utility pole are recorded in the RF tag 200, inspections performed in the past can be confirmed, and an accurate inspection interval can be set.

In addition, since the inspection history information can be updated via the reader / writer 100, the latest inspection record can be easily recorded.
In addition, since the transmission / reception unit 43 includes a wireless device, a mobile phone, or a portable information terminal, it is possible to communicate with the information management center 37 by easy means.
In addition, since a non-contact or contact type IC card or RF tag is used as the information recording medium, a power supply is not required, so that maintenance and inspection can be facilitated and can be configured at low cost.
Since the position search system 300 includes the position search device 35, the RF tag 200, and the information management center 37, the most frequently installed is the inexpensive RF tag 200. It can be built at low cost.
In the present invention, an electric power company has been described as an example. However, the present invention is not limited to this, and a guide board equipped with an RF tag is installed at a predetermined location in a sightseeing spot so that the location of the tourist at present can be displayed on the mobile phone. It may be displayed.
In the present invention, a passive RF tag without a power source is described as an RF tag. However, an active RF tag with a built-in battery may be used.

It is a block diagram which shows the structure of a general reader / writer. It is a block diagram which shows the structure of RF tag of this invention. It is a schematic structure figure of a position search system concerning one embodiment of the present invention. 1 is a block diagram of a position search device according to a first embodiment of the present invention. It is a figure which shows an example of the map information displayed on the display part. It is a block diagram of the position search apparatus which concerns on the 2nd Embodiment of this invention. It is a figure which shows the format of the information recorded on RF tag. It is a flowchart explaining the operation | movement at the time of the normal inspection in the position search system of this invention. It is a flowchart explaining the operation | movement when lost in the way in the position search system of this invention.

Explanation of symbols

  31 power pole, 35 position search device, 35a, 35b position search section, 40 storage section, 41 control section, 42 display section, position 43 transmission / reception section, 100 reader or reader / writer, 200 RF tag, 300 position search system

Claims (9)

A reader or a reader / writer that reads the recorded information of an information recording medium that is provided on the mounting object scattered over a wide area range and records ID information of the mounting object, and the mounting object based on the ID information A position search unit for searching for position information of an object,
The position search unit includes a storage unit that stores map information indicating a position of an attachment object corresponding to the ID information, a display unit that displays corresponding map information, the reader or reader / writer, the storage unit, and a display. A control unit for controlling the unit,
The control unit searches the storage unit for map information indicating the position of an attachment object corresponding to the ID information recorded on the information recording medium read by the reader or reader / writer, and the position information of the attachment object Is displayed on the display unit.   The position search unit further includes a transmission / reception unit that controls transmission and reception of information, and the control unit reads ID information recorded on the information recording medium by the reader or reader / writer, and an attachment target corresponding to the ID information As a result of searching the map information indicating the position of the object from the storage unit, when it is detected that the map information corresponding to the ID information is not stored in the storage unit, all the map information is managed by the transmission / reception unit. The ID information is transmitted to the information management center, and new map information indicating the position of the attachment object corresponding to the ID information is received from the information management center and stored in the storage unit. The position search device according to 1.   The map information includes at least a road and a target in the vicinity where the attachment object is arranged, and a position of the attachment object corresponding to the ID information. Location search device.   When the control unit retrieves map information indicating the position of the attachment object corresponding to the ID information from the storage unit and displays the map information on the display unit, the position of the attachment object corresponding to the ID information blinks or is displayed. The position search apparatus according to claim 1, 2, or 3, wherein the position search apparatus performs color display.   When the attachment object is an inspection object, at least the ID information and the inspection history information of the attachment object are recorded on the information recording medium. The position search device according to one item.   The position search device according to claim 1, wherein the control unit can update the inspection history information via the reader / writer.   The position search apparatus according to claim 1, wherein the transmission / reception unit includes a wireless device, a mobile phone, or a portable information terminal.   The position search device according to any one of claims 1 to 7, wherein the information recording medium is a non-contact or contact type IC card or an RF tag. A position search device according to any one of claims 1 to 8, an information recording medium that records ID information of the attachment object, and an information management center that manages all map information,
The information management center receives the ID information transmitted from the position search device, searches for map information indicating the position of the attachment object corresponding to the ID information, and transmits the map information to the position search device. Location search system.

Images