JP4519414B2 - Wireless ID tag monitoring system and method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a system that can efficiently process a large amount of tag IDs read from a wide range of wireless ID readers.
[0002]
[Prior art]
In recent years, RF-ID systems have attracted attention and have begun to be introduced into various applications. The RF-ID system is an abbreviation for Radio Frequency Identification system. The RF-ID system is composed of an RF-ID reader and an RF-ID tag, and the RF-ID reader is stored in the RF-ID tag by performing wireless communication between the RF-ID reader and the RF-ID tag. It is possible to read the information. The RF-ID tag has various shapes such as a label type and a card type, and can be easily attached to anything. In recent years, a communication distance between the RF-ID reader and the RF-ID tag of about 10 m has been developed. In this specification, “radio ID” is used in the following description as a term having a broader meaning including a technique generally called “RF-ID”.
[0003]
As one of the uses of the wireless ID system, a system for grasping the position of a person or an object attached with a wireless ID tag has been studied. In particular, application to a wide range of fields can be realized if the position of a large number of objects existing in a wide range, for example, the positions of a large number of automobiles, can be managed efficiently. In this specification, a moving object including a moving object such as a human being, an animal, and an automobile is referred to as a “moving object”.
[0004]
However, in order to manage a large number of mobile objects such as automobiles, it is necessary to realize a large amount of tag ID processing, but there is no system that enables such processing in the prior art. .
[0005]
As conventional systems for general information management, there are techniques described in Patent Documents 1 to 5.
[0006]
[Patent Document 1]
JP-A-10-161920
[0007]
[Patent Document 2]
Japanese Patent Laid-Open No. 06-149737
[0008]
[Patent Document 3]
JP 2000-029848 A
[0009]
[Patent Document 4]
Japanese Patent Laid-Open No. 11-232232
[0010]
[Patent Document 5]
Japanese Patent Laid-Open No. 11-212897
[0011]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and an object of the present invention is to provide a system for efficiently monitoring the positions of a large number of moving bodies existing in a wide range such as an automobile.
[0012]
[Means for Solving the Problems]
In the system used for monitoring a mobile object to which a wireless ID tag is attached, the above-described problem is a detection signal including a tag ID read by a wireless ID reader from the wireless ID tag and a reader ID of the wireless ID reader. A plurality of storage servers for storing data, an operation device for simultaneously transmitting a predetermined processing instruction to the plurality of storage servers, and aggregating results of the predetermined processing received from each storage server, and a wireless ID reader This can be solved by a system having a distribution device that distributes the transmitted detection signals to the plurality of storage servers.
[0013]
According to the present invention, while the detection signals are distributed to the plurality of storage servers, the operation device simultaneously transmits commands to the plurality of storage servers, and the processing results in each storage server are aggregated. In addition, a large amount of data can be processed at high speed by load balancing, and each storage server performs processing independently, so that it is possible to easily increase the number of storage servers according to the amount of tag IDs to be handled. Therefore, it is possible to provide a system for efficiently monitoring the positions of a large number of moving bodies existing in a wide range.
[0014]
In addition, it further includes a detection server that receives detection signals from a plurality of wireless ID readers, and the detection server notifies the operation device when the same tag ID as a pre-registered tag ID is detected from the detection signal. By doing so, a specific ID detection process can be performed separately from the process by the storage server, and an urgent process can be quickly performed.
[0015]
In addition, when the wireless ID reader detects the same tag ID as a pre-registered tag ID, the operation device is notified so that processing that requires further urgency can be performed quickly.
[0016]
In addition, a plurality of the wireless ID readers are provided for each predetermined area, and by providing the detection server corresponding to the plurality of wireless ID readers in the predetermined area, area limitation processing can be performed.
[0017]
The predetermined process is a process of retrieving data corresponding to a specified information item from detection signals stored in the plurality of storage servers, and each storage server stores index information using the information item as a key. As a result, high-speed processing becomes possible.
[0018]
Further, a portable wireless ID reader can be used as the wireless ID reader.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In the present embodiment, a wireless ID tag is attached to a vehicle license plate, for example, a vehicle, a wireless ID reader is arranged in a wide range, and the tag ID of the vehicle that has passed near the wireless ID reader is read to determine the location of the vehicle, A system for monitoring and managing traffic information and the like will be described.
[0020]
(First embodiment)
FIG. 1 shows a system configuration diagram according to the first embodiment of the present invention. The system according to the present embodiment includes a wireless ID reader 1 arranged in a wide range, a detection server 2 for temporarily managing a detection signal including a detected tag ID, reader ID, and time stamp, and a storage server from the detection server 2 4, a signal distribution device 3 that basically randomly distributes a signal to be transmitted, a storage server 4 for storing a detection signal composed of a tag ID, a reader ID, and a time stamp, a tag stored in a storage server or the like according to a predetermined application It has a central operation device 5 that performs processing based on the ID.
[0021]
As shown in FIG. 1, this system is logically divided into level 1 to level 4 hierarchies. As a general rule, low-level layers perform highly urgent processing, and high-level layers are stationary and intensive. It is configured to perform highly functional processing.
[0022]
Each of the plurality of detection servers 2 shown in FIG. 1 is connected to a plurality of wireless ID readers 1 existing in a predetermined area. As a result, it is possible to easily perform a process limited to an area corresponding to the detection server 2 by causing a command from the central operation device 5 to act on the specific detection server 2. A plurality of intensive operation devices 5 may exist simultaneously.
[0023]
The signal distribution device 3 is provided corresponding to the detection server 2, and the storage server 4 is expanded and expanded according to the amount of signals to be processed or the processing load.
[0024]
Further, the plurality of storage servers 4 can be divided into groups, and each group can be configured to cover a predetermined area. Thereby, the area limitation process in a larger area unit can be easily performed. In the example shown in FIG. 1, group 1 covers area 1 and group 2 covers area 2. In addition, various storage area limiting processes can be easily realized by providing the storage servers 4 in a hierarchical manner.
[0025]
Since the detection server and the storage server are divided into areas as described above, any one of nation / prefecture / municipalities / others (latitude ab, longitude ab) is designated as necessary to limit the area. Processing can be performed. Also, for example, prefectures can be configured to correspond to level 3 (storage server group), municipalities can correspond to level 2 (detection server, and each location corresponds to level 1 (wireless ID reader). It is.
[0026]
The storage server 4 stores information for several hours to several months, for example. Information over a longer period can be stored in a separate device. In addition, the central operation device may be provided for each application, or may be provided for each area corresponding to the above group.
[0027]
In addition, although the internet can be used for the connection between each apparatus, you may use another network, for example. A wireless ID reader installed on the street may be connected to the Internet via a wireless data communication network. By connecting each device to the Internet, it becomes possible to exchange information directly between the devices (for example, between a wireless ID reader and an intensive operation device).
[0028]
Each of the detection server 2, the storage server 4, and the central operation server 5 is configured by loading a program that causes a computer to execute the processing according to the embodiment of the present invention. The signal distribution device 3 may be provided separately from the detection server 2 or may be realized using a program that operates on the detection server 2 without providing a separate device.
[0029]
Next, information stored in each device constituting the system of FIG. 1 will be described.
[0030]
FIG. 2 is a diagram showing the configuration of the wireless ID reader. As shown in FIG. 2, the wireless ID reader according to the first embodiment controls a reading unit 11 that reads a tag ID by wireless communication, a communication device 12 that transmits a signal via a network, and operation control. And a control device 13 for performing the operation. The control device 13 has a storage function for storing a reader ID, data necessary for communication, and the like, and a display function for displaying information externally as necessary.
[0031]
Further, the wireless ID reader 1 stores a tag ID for on-site detection by a command from the intensive operation device 5. That is, as shown in FIG. 3, a specific tag ID (this is referred to as an on-site detection tag ID) and a notification destination operation device corresponding thereto are stored. Thus, when a specific tag ID is detected, the wireless ID reader notifies the notification destination operation device.
[0032]
As illustrated in FIG. 4, the detection server 2 receives a signal including a communication header, a tag ID, and a reader ID from the wireless ID reader 1. The communication header is information including, for example, the address of the transmission destination detection server. Then, as shown in FIG. 5, the detection server 2 adds a time stamp to the received signal and stores it in the order of arrival. Also, the signal shown in FIG. 6 is sent to the storage server 4 via the signal distribution device 3.
[0033]
Further, the detection server 2 stores the detection tag ID by a command from the intensive operation device 5. That is, as shown in FIG. 7, a specific tag ID (referred to as a detection tag ID) and a notification destination operation device corresponding to the specific tag ID are stored. Thus, when a specific tag ID is detected, the notification server notifies the notification destination operation device.
[0034]
As illustrated in FIG. 8, the storage server 4 receives a signal including a communication header, a tag ID, a reader ID, and a time stamp from the detection server 2. The communication header is information including, for example, the address of the destination storage server. Then, as shown in FIG. 9, the storage server 4 stores the received signals in the order of arrival. Then, the signal shown in FIG. 10 is sent to the central operation device 5 in response to a command from the central operation device 5.
[0035]
The storage server 4 stores a reference tag ID for reference / search from the central operation device 5 based on a command from the central operation device 5. That is, as shown in FIG. 11, a specific tag ID (referred to as a reference tag ID) and a notification destination operation device corresponding thereto are stored. Thereby, when the reference tag ID is detected, the notification destination operation device is notified.
[0036]
The storage server 4 may store index information for improving the processing speed. For example, as shown in FIG. 12A, the writing start position of information every minute is stored as a time index. This speeds up the search for information for a certain time. Also, as shown in FIG. 12B, the latest detection time for a specific tag ID can be searched at high speed by storing only the latest time stamp as an ID index using the tag ID as a key.
[0037]
The intensive operation device 5 searches for information corresponding to a specific tag ID, for example, by transmitting a command to the storage server 4. As described above, each of the plurality of storage servers stores the detection signals received independently in the order of arrival, but commands such as data retrieval from the central operation device are simultaneously sent to all the storage servers. If necessary, for example, it is also possible to send commands simultaneously with limited area. Based on this command, each storage server independently executes a search process. As a result, processing load can be distributed, and the processing speed increases.
[0038]
Further, the intensive operation device 5 can send a command to the detection server 2 and the wireless ID reader 1, and can be configured to notify the intensive operation device 5 when a specific tag ID is detected, for example. By adopting such a configuration, it can be effectively used for a highly urgent purpose regardless of the processing status (load) in the storage server.
[0039]
Next, the operation of the system in the present embodiment will be described with reference to the drawings.
[0040]
FIG. 13 is a diagram illustrating the operation of the system when a vehicle with a wireless ID tag attached passes near a wireless ID reader and tag ID data is stored.
[0041]
First, when a vehicle equipped with a wireless ID tag enters a predetermined range from a wireless ID reader installed on the street, the wireless ID reader detects the tag ID of the wireless ID tag (step S1). Here, “within a predetermined range” means within a distance at which the wireless ID reader can detect the tag ID by wireless communication.
[0042]
The wireless ID reader that has detected the tag ID sends a detection signal to the detection server (step S2). The detection server that has received the detection signal gives a time stamp to the detection signal and temporarily stores it in the order of arrival (step S3). The detection server then sends the temporarily stored detection signals to the sorting device in the order in which the detection signals arrived (step S4).
[0043]
The distribution device distributes and transmits the received detection signal to the storage server (step S5). For example, the distribution may be performed by transmitting to different storage servers in order, or the storage server may be selected and transmitted randomly at each transmission. This distribution is performed in order to distribute the load between the distribution apparatus and the storage server, or load of the storage server, and to avoid a failure.
[0044]
Instead of sending detection signals one by one, they may be multiplexed to some extent and sent to the storage server (step S6).
[0045]
The storage server stores the detection signals received from the distribution device in the order of arrival (step S7). By such processing, the detection signals are stored almost evenly in the storage servers.
[0046]
Next, processing for searching for information corresponding to a specific tag ID from data stored in the storage server by a command from the aggregation operation device will be described with reference to FIG. This process is executed, for example, when confirming the latest position of the automobile corresponding to the specific tag ID, confirming the past movement route of the automobile corresponding to the specific tag ID, or the like.
[0047]
First, a command for searching for a specific wireless ID tag is sent to all storage servers in the search range (step S11). The unit of the search range here is a unit of a wide range such as area 1 and area 2 shown in FIG. At this time, the notifying destination operation device is also notified. The storage server that has received the command registers the wireless ID tag to be searched (step S12). Then, the stored tag IDs are sequentially extracted from the latest one (step S13) and compared with the registered tag IDs to be searched (step S14). If the extracted tag ID is a tag ID to be searched, a detection signal corresponding to the extracted tag ID is transmitted to the designated intensive operation device (step S15). The storage server can repeatedly perform the above processing.
[0048]
The central operation device receives the detection signal from each storage server (step S16) and edits it (step S17). For example, when displaying the latest position of the car corresponding to the tag ID, the reader ID (the ID of the wireless ID reader) of the data corresponding to the latest time stamp of the retrieved data is acquired, and the reader Significant position information (address, etc.) corresponding to the ID is acquired and displayed. When the purpose is to display the travel route (trace function), the detection signals are sorted by time stamp, each reader ID is converted into significant position information (address, etc.), and the position of the car in chronological order. Is plotted on the map and the result is displayed.
[0049]
In addition, by using the above search function, it is also possible to provide a list collation function for making a list of search targets and searching for data that matches the information listed in the list. In this case, it is also possible to provide a list collation function by providing a list collation server in addition to the central operation device and transmitting a collation command from the list collation server to the storage server.
[0050]
Next, the operation of the system when the detection server detects a specific tag ID will be described with reference to FIG.
[0051]
The intensive operation device transmits a command for detecting a specific tag ID to all detection servers in the search range (step S21). A tag ID to be detected is registered on the detection server side (step S22). Note that the unit of the search range in this case is a range of a plurality of wireless ID readers connected to the detection server, for example.
[0052]
When a vehicle with a wireless ID tag attached enters a predetermined range from a wireless ID reader installed on the street, the wireless ID reader detects the tag ID of the wireless ID tag (step S23), and a detection signal is sent to the detection server. Is sent out (step S24).
[0053]
The detection server temporarily stores the detection signals received from the wireless ID reader with time stamps in the order of arrival (step S25). Then, it is checked whether or not the received detection signal corresponds to the tag ID to be detected (step S26), and if it corresponds, the detection signal corresponding to the tag ID is transmitted to the intensive operation device specified by the command. (Step S27). The intensive operation device receives the detection signal (step S28), and edits and displays the result (step S29). As described above, by detecting the specific tag ID as soon as the detection server detects the specific tag ID, it is possible to notify the detection of the specific tag ID more quickly than by searching the storage server and detecting the tag ID. it can. Further, by performing this process on the detection server, it is possible to promptly notify without being affected by the load caused by the search process on the storage server. The storage server receives a detection signal from an arbitrary detection server, whereas each detection server basically receives a detection signal from a wireless ID reader in a predetermined area. When the area of the car corresponding to the tag ID can be narrowed down, the tag ID can be detected at a higher speed.
[0054]
Next, as a process adapted to the case of higher urgency, a process when the wireless ID reader detects a specific tag ID will be described using FIG.
[0055]
First, a command for detecting a specific tag ID by the wireless ID reader is transmitted from all the operation devices to all detection servers in the search range (step S31). The detection server transmits a command specifying the tag ID to be detected to all the wireless ID readers in the emergency detection range among the wireless ID readers under the control (step S32), and the wireless ID reader receives the received tag ID. Is registered (step S33). The registered tag ID is a detection target.
[0056]
When the vehicle with the wireless ID tag attached enters the predetermined range from the wireless ID reader installed on the street, the wireless ID reader detects the tag ID of the wireless ID tag (step S34). The wireless ID reader checks whether or not the received tag ID is the same as the tag ID registered as the detection tag ID (field detection tag ID) (step S35). While notifying the notification destination of the detection signal (step S36), it is also possible to display that the display device provided in the wireless ID reader has detected the ID (step S37). Note that the wireless ID reader can be set so that the same ID as the tag ID once sent is not sent for a predetermined time (for example, several minutes). Thereby, useless information notification can be omitted.
[0057]
The central operation device receives the detection signal (step S38) and displays the result (step S39). Since the position of the automobile to which the tag ID is attached can be quickly grasped from the reader ID, necessary actions can be taken immediately.
[0058]
As described above, since the real-time processing of the tag ID detection signal by the detection server and the past information storage / retrieval function by the storage server are separated, the efficiency of the real-time detection function is improved. Further, when the function separation as described above is not performed, a delay may occur in real-time processing that requires urgency due to the load during the past data search operation. Such fears are eliminated by the separation.
[0059]
In addition, the signal distribution device distributes the signal transmitted from the detection server to the storage server, and the signals received by the storage server are stored as they are in time order. Since each storage server performs processing independently of the other storage servers, the storage server can be expanded simply by adding a completely independent server and registering it in the signal distribution device. That is, it is not necessary to split and transfer past data to a new server.
[0060]
Then, the central operation device transmits a command to each storage server in a broadcast manner, and the central operation device aggregates the results of the processing by each storage server, whereby the distributed storage server Can be operated as an organically coupled database.
[0061]
Each detection server is also independent of the wireless ID reader connected thereto, and it is easy to add a detection server, a wireless ID reader, and a wireless ID reader.
[0062]
Furthermore, tag IDs that require urgency and on-site visibility can be detected by providing a radio ID reader with an emergency tag ID detection list.
[0063]
The basic configuration and operation in the present embodiment have been described above. Next, applications to which the system of the present embodiment can be applied will be described.
[0064]
As described above, the system according to the present embodiment has a search function for stored data and a specific ID detection notification function. Therefore, crime prevention, detection of stolen vehicles, road pricing using a list verification function, malicious It can be applied to real-time detection of vehicles etc., criminal investigation. For example, in the detection of the stolen vehicle, the collective operation device displays the current position of the vehicle and the past travel route by searching the tag ID corresponding to the stolen vehicle from the data stored in the storage server.
[0065]
Further, by analyzing long-term storage data, more detailed traffic volume data can be collected. In addition, by providing interfaces with various private transportation facilities, it is possible to provide current location notification services such as buses, taxis, and deliverers. In addition to vehicles, the present invention can be applied to people and objects that need to be monitored over a wide range.
[0066]
(Second Embodiment)
Next, a second embodiment of the present invention will be described.
[0067]
FIG. 17 shows a system configuration diagram according to the second embodiment of the present invention. In the first embodiment, the wireless ID reader fixed on the street is used. However, the portable wireless ID reader 6 is used in the system of the present embodiment. The portable wireless ID reader is mounted on an automobile or the like. The portable wireless ID reader communicates with the detection server via a wireless data network. The system of the second embodiment may use only the portable wireless ID reader as shown in FIG. 17, or may be used in combination with the configuration of the fixed wireless ID reader of the first embodiment. .
[0068]
As shown in FIG. 17, the system in the second embodiment is similar to the first embodiment in that the detection server 2, the signal distribution device 3, and the tag ID for temporarily managing the detected tag ID. A storage server 4 for saving, and a central operation device 5 that performs processing based on a tag ID stored in the storage server or the like in accordance with a predetermined application. In the example shown in FIG. 17, one detection server is used, but a plurality of detection servers may be used as in the first embodiment.
[0069]
FIG. 18 shows the configuration of the portable wireless ID reader 6. The portable wireless ID reader 6 includes a reading unit 61 for reading a tag ID by wireless communication, a mobile communication device 62 for transmitting a signal via a wireless communication data network, a control device 63 for controlling operation, and itself And a GPS device 64 for acquiring time information (time stamp). The control device 63 has a storage function for storing a reader ID, data necessary for communication, and the like, and a display function for displaying information as necessary. Instead of using this display function, a local display device may be connected to the portable wireless ID reader so that the local display device displays. Further, as shown in FIG. 19, the portable wireless ID reader 6 stores the tag ID for on-site detection by a command from the intensive operation device.
[0070]
As shown in FIG. 20, the detection server receives a signal including a communication header, a tag ID, a reader ID, a time stamp, and GPS position information from a portable wireless ID reader. The communication header is information including, for example, the address of the transmission destination detection server. Then, as shown in FIG. 21, the detection server stores the received signals in the order of arrival. Then, the signal shown in FIG. 22 is sent to the storage server via the signal distribution device. Further, as shown in FIG. 23, the detection tag ID is stored by a command from the intensive operation apparatus.
[0071]
As shown in FIG. 24, the storage server receives a signal including a communication header, a tag ID, a reader ID, a time stamp, and GPS position information from the detection server. Then, as shown in FIG. 25, the storage server stores the received signals in the order of arrival. Then, the signal shown in FIG. 26 is sent to the central operation device in response to a command from the central operation device. The storage server stores the reference tag ID for reference / search from the central operation device based on the command from the central operation device (FIG. 27). Furthermore, as in the first embodiment, the storage server may store index information for improving the processing speed.
[0072]
The function of the intensive operation apparatus is basically the same as that of the first embodiment, but in the second embodiment, the position of the portable wireless ID reader can be grasped based on the GPS position information. .
[0073]
Next, the operation of the system in the present embodiment will be described with reference to the drawings.
[0074]
FIG. 28 is a diagram illustrating the operation of the system when the vehicle with the wireless ID tag attached passes near the portable wireless ID reader and tag ID data is stored.
[0075]
First, when a vehicle to which a wireless ID tag is attached enters a predetermined range from a portable wireless ID reader attached to another mobile body (here, referred to as a vehicle), the portable wireless ID reader moves to the wireless ID tag. Is detected (step S41).
[0076]
The portable wireless ID reader that has detected the tag ID sends a detection signal to the detection server (step S42). The detection server that has received the detection signal temporarily stores the detection signal in the order of arrival (step S43). The detection server then sends the temporarily stored detection signals to the sorting device in the order in which the detection signals arrived (step S44).
[0077]
The distribution device distributes and transmits the received detection signal to the storage server (step S45). Instead of sending detection signals one by one, they may be multiplexed to some extent and sent to the storage server (step S46).
[0078]
The storage server stores the detection signals received from the distribution device in the order of arrival (step S47). By such processing, the detection signals are stored almost evenly in the storage servers.
[0079]
Next, processing for searching for information corresponding to a specific tag ID from data stored in the storage server by a command from the aggregation operation device will be described with reference to FIG. This process is executed, for example, when confirming the latest position of the automobile corresponding to the specific tag ID, confirming the past movement route of the automobile corresponding to the specific tag ID, or the like.
[0080]
First, a command for searching for a specific wireless ID tag is sent to all storage servers in the search range (step S51). At this time, the notifying destination operation device is also notified. The storage server that has received the command registers the wireless ID tag to be searched (step S52). Then, the stored tag IDs are sequentially extracted from the latest one (step S53) and compared with the registered tag IDs to be searched (step S54). If the extracted tag ID is a tag ID to be searched, a detection signal corresponding to the extracted tag ID is transmitted to the designated intensive operation device (step S55). This process can be repeated for data of a predetermined period. The central operation device receives a detection signal from each storage server (step S56) and displays the result (step S57).
[0081]
Next, the operation of the system when the detection server detects a specific tag ID will be described with reference to FIG.
[0082]
The intensive operation device transmits a command for detecting a specific tag ID to all the detection servers in the search range (step S61). On the detection server side, the tag ID to be detected is registered (step S62).
[0083]
When the vehicle with the wireless ID tag attached enters the predetermined range from the portable wireless ID reader, the portable wireless ID reader detects the tag ID of the wireless ID tag (step S63), and sends a detection signal to the detection server. Send out (step S64).
[0084]
The detection server temporarily stores the detection signals received from the portable wireless ID reader in the order of arrival (step S65). Then, it is checked whether or not the received detection signal corresponds to a tag ID to be detected (step S66), and if it corresponds, a detection signal corresponding to the tag ID is transmitted to the intensive operation device specified by the command. (Step S67). The central operation device receives the detection signal (step S68), and edits and displays the result (step S69).
[0085]
Next, as a process adapted to the case of higher urgency, a process when the portable wireless ID reader detects a specific tag ID will be described with reference to FIG.
[0086]
First, a command for detecting a specific tag ID in the portable wireless ID reader is transmitted from all the operation devices to all detection servers in the search range (step S71). The detection server transmits the detection area information together with the tag ID to be detected to the subordinate portable wireless ID reader (step S72). The portable wireless ID reader that has received this information determines whether or not the current position is within the detection area (step S73), and if it is within the detection area, registers the received tag ID (step S74).
[0087]
When the automobile to which the wireless ID tag is attached enters the predetermined range from the portable wireless ID reader, the portable wireless ID reader detects the tag ID of the wireless ID tag (step S75). The portable wireless ID reader checks whether or not the received tag ID is the same as the tag ID registered as the detection tag ID (step S76), and if it is the same, a detection signal is sent to the designated notification destination. (Tag ID and reader ID) are notified (step S77), and the local display device of the portable wireless ID reader displays that the tag ID has been detected (step S78). By performing the above display on the local display device, it can be confirmed that the target tag ID has been detected in the field, and subsequent tracking and the like can be performed efficiently. Further, the portable wireless ID reader can be set so that the same ID as the tag ID once sent is not sent for a predetermined time (for example, several minutes). Thereby, useless information notification can be omitted.
[0088]
The intensive operation device receives the detection signal (step S79), grasps the position of the automobile to which the tag ID is attached from the GPS position information, and displays the result (step S80).
[0089]
With the configuration and operation as described above, the system of the second embodiment also has the same effect as the system of the first embodiment. In the second embodiment, since the wireless ID reader itself is movable, the portable wireless ID reader can be moved to a place where there is a high possibility that the tag ID reader to be detected exists, and the place is detected. The target tag ID can be detected efficiently by sending the command specified in. Therefore, the system of the second embodiment is particularly suitable for highly urgent applications.
[0090]
According to the first and second embodiments described above, since the system is realized by the wide area NW and the distributed server group, expandability, high response, and high reliability are realized. Further, since it is realized by a general Internet technology and a server system without using a large HOST, it can be realized at a relatively low cost. In addition, the conventional vehicle number monitoring / identification system is realized by an automatic number reading device, but the wireless ID tag method adopted in the present embodiment has a lower detection system cost than the conventional method, and is widely used. The detection system can be expanded on the surface.
[0091]
The present invention is not limited to the above-described embodiments, and various modifications and applications are possible within the scope of the claims.
[0092]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a system for efficiently monitoring a large number of moving objects such as automobiles in a wide range.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a configuration of a wireless ID reader according to the first embodiment of the present invention.
FIG. 3 is a diagram showing field detection tag ID information according to the first embodiment of the present invention.
FIG. 4 is a diagram illustrating a signal received by the detection server according to the first embodiment of the present invention.
FIG. 5 is a diagram illustrating information stored in the detection server according to the first embodiment of the present invention.
FIG. 6 is a diagram illustrating a signal transmitted by the detection server according to the first embodiment of the present invention.
FIG. 7 is a diagram showing detection tag ID information according to the first embodiment of the present invention.
FIG. 8 is a diagram showing a signal received by the storage server according to the first embodiment of the present invention.
FIG. 9 is a diagram showing a signal stored in the storage server according to the first embodiment of the present invention.
FIG. 10 is a diagram illustrating a signal transmitted by the storage server according to the first embodiment of this invention.
FIG. 11 is a diagram showing reference tag ID information in the first embodiment of the invention.
FIG. 12 is a diagram illustrating an example of index information.
FIG. 13 is a diagram showing an operation until a detection signal is stored in the first embodiment of the present invention.
FIG. 14 is a diagram showing an operation of a process for searching for information corresponding to a specific tag ID from data stored in a storage server in the first embodiment of the present invention.
FIG. 15 is a diagram showing an operation when the detection server detects a specific tag ID in the first embodiment of the present invention.
FIG. 16 is a diagram showing an operation when the wireless ID reader detects a specific tag ID in the first embodiment of the present invention.
FIG. 17 is a system configuration diagram according to the second embodiment of the present invention;
FIG. 18 is a diagram illustrating a configuration of a portable wireless ID reader according to a second embodiment of the present invention.
FIG. 19 is a diagram showing field detection tag ID information according to the second embodiment of the present invention.
FIG. 20 is a diagram illustrating a signal received by the detection server according to the second embodiment of the present invention.
FIG. 21 is a diagram illustrating information stored in the detection server according to the second embodiment of the present invention.
FIG. 22 is a diagram illustrating a signal transmitted by the detection server according to the second embodiment of the present invention.
FIG. 23 is a diagram showing detection tag ID information according to the second embodiment of the present invention.
FIG. 24 is a diagram illustrating a signal received by the storage server according to the second embodiment of the present invention.
FIG. 25 is a diagram illustrating a signal stored in the storage server according to the second embodiment of the present invention.
FIG. 26 is a diagram illustrating a signal transmitted by the storage server according to the second embodiment of the present invention.
FIG. 27 is a diagram showing reference tag ID information according to the second embodiment of the present invention.
FIG. 28 is a diagram showing an operation until a detection signal is stored in the second embodiment of the present invention.
FIG. 29 is a diagram illustrating an operation of a process of searching for information corresponding to a specific tag ID from data stored in a storage server according to the second embodiment of the present invention.
FIG. 30 is a diagram illustrating an operation when the detection server detects a specific tag ID in the second embodiment of the present invention.
FIG. 31 is a diagram showing an operation when a portable wireless ID reader detects a specific tag ID in the second embodiment of the present invention.
[Explanation of symbols]
1 Wireless ID reader
2 detection server
3 Signal distribution device
4 Storage server
5 Central operation equipment
6 Portable wireless ID reader
11, 61 Reading unit
12 Communication device
13, 63 Control device
62 Mobile communication device
64 GPS device

Claims (12)

A system used for monitoring a mobile object with a wireless ID tag attached thereto,
A detection server that receives a detection signal including a tag ID read from a wireless ID tag by a wireless ID reader and a reader ID of the wireless ID reader from a plurality of wireless ID readers;
A plurality of storage servers for receiving and storing the detection signal transmitted from the detection server;
An operation device that simultaneously transmits a predetermined processing instruction to the plurality of storage servers and aggregates the results of the predetermined processing received from each storage server;
A distribution device that distributes the detection signal transmitted from the detection server to the plurality of storage servers;
The distribution device randomly distributes detection signals to the plurality of storage servers, and each storage server stores detection signals in the order received.
The detection server notifies the operation device when it detects the same tag ID as a pre-registered tag ID from a detection signal received from a wireless ID reader.   The system according to claim 1, wherein the wireless ID reader notifies the operation device when detecting the same tag ID as a pre-registered tag ID. The wireless ID reader system of claim 1 or 2 for displaying the effect of detecting the tag ID when it detects the same tag ID and the tag ID registered in advance. The wireless ID reader provided more by one every predetermined area, the detection server, as claimed in any one of claims 1 provided corresponding to the plurality of wireless ID readers 3 in the predetermined area system. The predetermined process is a process of searching data corresponding to a specified information item from detection signals stored in the plurality of storage servers,
Each storage server system as claimed in any one of claims 1 to 4 for storing the index information as a key the information item. The wireless ID reader is a portable wireless ID reader,
Movable portable radio ID reader includes means for obtaining the GPS location information and time information, in any one of claims 1 to 5 and means for transmitting a detection signal including the GPS location information and time information The described system. A processing method in a system for monitoring a mobile object to which a wireless ID tag is attached,
The detection server receives a detection signal including a tag ID read from the wireless ID tag by the wireless ID reader and a reader ID of the wireless ID reader from the plurality of wireless ID readers;
The distribution device distributes the detection signal transmitted from the detection server to a plurality of storage servers,
Each storage server that receives the detection signal from the sorting device stores the detection signal;
An operation device is a processing method in which instructions for predetermined processing are simultaneously transmitted to the plurality of storage servers, and the results of the predetermined processing received from each storage server are aggregated ,
The distribution device randomly distributes detection signals to the plurality of storage servers, and each storage server stores detection signals in the order received.
The detection server notifies the operation device when it detects the same tag ID as a pre-registered tag ID from a detection signal received from a wireless ID reader. The method according to claim 7 , wherein the wireless ID reader notifies the operation device when detecting the same tag ID as a pre-registered tag ID. The method according to claim 7 or 8 , wherein the wireless ID reader displays that the tag ID has been detected when detecting the same tag ID as a pre-registered tag ID. The wireless ID reader provided more by one every predetermined area, the detection server, as claimed in any one of claims 7 are provided corresponding to the plurality of wireless ID reader 9 in the predetermined area Method. The predetermined process is a process of searching data corresponding to a specified information item from detection signals stored in the plurality of storage servers,
Each storage server, the method according to any one of claims 7 to 10 performs the predetermined processing by using the index information as a key the information item. The wireless ID reader is a portable wireless ID reader,
The method according to any one of claims 7 to 11 , wherein the portable wireless ID reader acquires GPS position information and time information and transmits a detection signal including the GPS position information and time information.

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