JP2017069654A - Wireless communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To grasp reception electric field strength about each relay unit by installing a plurality of relay units in a state where the relay units are scattered at arbitrary positions without going to the installation sites.SOLUTION: In a radio communication system having a radio network configured of a master unit and a plurality of relay units and a server for acquiring holding information of the relay units by communicating with the master unit, the relay unit includes: a position detection part for outputting position information indicating a current position; and an electric field detection part for outputting electric field information indicating reception electric field strength of each adjacent relay unit, and transmits the position information and adjacent unit information in which the electric field information and the identification information of the adjacent relay unit are associated with each other to the transmission destination relay unit as a part of the holding information of the own unit, and the server creates information for display for displaying a relay unit mark Ma to be displayed at the current position of the relay unit and a corresponding mark Mb indicating a correspondence relation between the relay unit and the adjacent relay unit on an electronic map MP on the basis of the identification information and position information of the relay unit and the adjacent unit information included in the holding information acquired from the master unit.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a plurality of relay devices, one parent device, and a parent device that respectively communicate with one or more slave devices and construct an autonomously distributed wireless network based on relay route information stored in each of them. The present invention relates to a wireless communication system including a server that communicates with a machine.

  As this type of wireless communication system, a wireless communication system disclosed by the applicant of the present application in Patent Document 1 below is known.

  This wireless communication system includes a plurality of repeaters installed at a plurality of predetermined installation positions in a mobile area of a slave unit, and one repeater functioning as a master unit by adding a gateway among the repeaters And a server connected via a communication infrastructure such as the Internet. In this wireless communication system, a plurality of repeaters construct a wireless network having a repeater as a master unit as a transmission target device in an autonomous and distributed manner (for example, by an ad hoc network algorithm). Stores information (relay route information) of another relay station as a transmission destination.

  With the above configuration, in this wireless communication system, each repeater acquires information (slave unit information (including a slave unit ID)) about the slave unit that has established communication with its own unit, and this acquired slave unit information Together with the slave unit receiving station ID (the own unit ID) to other relay units that are defined as the transmission destination in the relay route information. At this time, each relay device, when the own device is the transmission destination of the other relay device, information transmitted from the other relay device (that is, the slave device information acquired by the other relay device and In order to receive the slave unit receiving station ID (the ID of this other repeater)), this information is also transmitted to the other repeater as the transmission destination. When each repeater operates as described above, the repeater as the master unit receives the slave unit information (including the slave unit ID) and the slave unit receiving station ID acquired by all other repeaters. In addition, the repeater as the master unit includes the slave unit information and slave unit ID of the slave unit and the slave unit reception station ID (own unit ID) of the slave unit that has established communication with the slave unit information and the slave unit received from other repeaters. The machine receiving station ID is transmitted to the server via the communication infrastructure. Based on the received slave unit receiving station ID and slave unit information, the server creates a database of the location of the relay unit that has established communication with the slave unit as the location information of the slave unit.

  Therefore, in this wireless communication system, it is possible to display the location information of the slave unit on the Web browser by accessing the server using a Web browser with a terminal device such as a personal computer connected to the communication infrastructure. Yes.

Japanese Patent No. 4841237 (page 3, FIG. 1)

  However, the wireless communication system has the following problems to be improved. That is, in this wireless communication system, when the repeater is installed at a predetermined installation position, the worker who installs the received electric field strength for at least two or more other repeaters at the installation position of the repeater. Is confirmed to be at a sufficient level for communication (that is, it is possible to construct one or more detours) with the received electric field strength meter. The work of searching for a position that can be confirmed in the vicinity of the initial position and installing the repeater with that position as the installation position is carried out for all the repeaters. Therefore, this wireless communication system has a problem to be improved that it takes a long time to construct a wireless network having a plurality of repeaters.

  In particular, it is required to perform from the installation of the repeater to the construction of the wireless communication system in a short time like a wireless communication system for detecting the activity status of the worker carrying the child device in the area where the disaster occurred. In a wireless communication system, a plurality of repeaters are interspersed without specifying installation positions, and in this state, the received electric field strength of other repeaters in each repeater is sent to the site (location of repeaters). There is a demand for the development of a wireless communication system that can be grasped without any problem and can determine whether or not a repeater needs to be further installed based on the received electric field strength.

  The present invention has been made in order to improve such a problem, and while installing a plurality of relay devices in a scattered state at any position, it is not necessary to go to the installation position (installation location), and the other relay devices. The main object of the present invention is to provide a radio communication system capable of grasping the received electric field strength of the repeater.

  In order to achieve the above object, the wireless communication system according to claim 1 is configured by one parent device and a plurality of relay devices, and finally transmits the possessed information held by the relay device to the parent device. An autonomous decentralized wireless network that automatically constructs relay route information indicating a transmission destination, and a server that communicates with the parent device to acquire the possessed information of the relay device. The identification information of the machine and the possession information of the adjacent repeater acquired from the other repeater as one or more adjacent repeaters located within a range in which direct communication with the own machine is possible are the possession information of the own machine. As a wireless communication system for transmitting the possessed information to another relay device specified as the transmission destination in the relay route information of the own device, wherein the plurality of relay devices detect the current position position A position detection unit that outputs position information indicating, and an electric field detection unit that detects received electric field strength for the adjacent repeater and outputs electric field information indicating the received electric field strength for each adjacent repeater, and Position information and neighboring device information in which the electric field information and the identification information of the neighboring repeater are associated with each other are transmitted as a part of the possessed information of the own device, and the server acquires the possessed information acquired from the parent device Based on the identification information, the position information, and the neighboring machine information about the relay machine included in the information, the relay machine mark to be displayed at the current position of the relay machine, and the relay machine and the relay machine A display information creation process is performed for creating display information for displaying a correspondence mark indicating a correspondence relationship with another relay device serving as the adjacent relay device on an electronic map.

  The wireless communication system according to claim 2 is the wireless communication system according to claim 1, wherein the server uses the repeater mark of the repeater and the adjacent repeater as the corresponding mark with respect to the repeater. A line mark connecting the repeater marks of the other repeaters is created.

  Further, in the wireless communication system according to claim 3, in the wireless communication system according to claim 1 or 2, the server sets the repeater mark for the repeater that can no longer acquire the retained information that has been acquired. The display information to be displayed in a different manner is created.

  The wireless communication system according to claim 4 is the wireless communication system according to any one of claims 1 to 3, wherein the server includes a display device, and displays the electronic map on a screen of the display device. At the same time, the repeater mark and the corresponding mark are displayed on the electronic map based on the display information.

  The wireless communication system according to claim 5 is the wireless communication system according to claim 4, wherein the plurality of repeaters have own device information indicating a state of a component constituting the own device. When the server designates one of the relay machine marks displayed on the electronic map with a pointer, the server transmits the information about the relay machine corresponding to the relay machine mark. The own device information is displayed on the screen.

  According to the wireless communication system of claim 1, based on the created display information and map information for displaying the electronic map, the repeater mark is placed at each position of the repeater and the parent unit on the electronic map. An image added with a correspondence mark indicating a correspondence relationship with an adjacent repeater can be generated and displayed on the screen of the display device. For this reason, according to this wireless communication system, while installing repeaters and the like at arbitrary positions in the actual area shown on the electronic map (predetermining the target installation position, this installation position Therefore, it is possible to grasp the presence or absence of an adjacent repeater for the repeater or the like without going to the installation position (installation location) of the repeater or the like. Thereby, according to this wireless communication system, there is no detour route in the relay route of the wireless network constructed by the relay device, etc., and the occurrence of a failure in the relay device, etc. Without having to go to the installation location (installation location).

  According to the wireless communication system of claim 2, whether or not there is a repeater as an arbitrary repeater and an adjacent repeater, and which repeater is an adjacent repeater when there is an adjacent repeater. It is possible to grasp directly, that is, clearly based on the corresponding mark created as a line mark.

  According to the wireless communication system according to claim 3, the possession information has been sent to the relay device (the relay device that cannot obtain the possession information) in which the possession information has not been sent due to the occurrence of a failure or the like. When the possession information has been sent to the location of this repeater on the electronic map indicated by this location information using the location information of this repeater (when possession information has been acquired) Since the display information for displaying the repeater mark can be created in a manner different from that of the display mode, an image is generated based on the display information and the map information and displayed on the screen of the display device. This makes it possible to more reliably grasp the position of the relay device in which this failure has occurred compared to a configuration in which the relay device mark of the relay device to which no possessed information is sent is not displayed. .

  According to the wireless communication system of the fourth aspect, since the server displays the above image on the screen of the display device provided in the server, the server administrator uses the mobile terminal or the like to communicate with the server via the communication infrastructure. Without access, the presence / absence of an adjacent repeater for a repeater or the like, and the presence of an adjacent repeater, the received electric field strength for this adjacent repeater can be ascertained.

  According to the wireless communication system of the fifth aspect, it is possible to reliably and easily grasp the own device information of the repeater etc. in the server installed in the remote place away from the place where the repeater is installed.

1 is a configuration diagram of a wireless communication system 1. FIG. It is a block diagram of relay machine RS. A neighboring field intensity table TB under installation conditions of each repeater _RS 1 _{to RS 18} and base unit MS. Electronic map MP displayed in the server 4, the repeater RS ₁ to RS ₁₈ and base unit MS of the repeater mark Ma, and illustration for explaining each image of a corresponding mark Mb for connecting adjacent repeater RS together It is. A neighboring field intensity table TB under installation conditions of each repeater _RS 1 _{to RS 19} and base unit MS. Electronic map MP displayed in the server 4, the repeater RS ₁ to RS ₁₉ and the parent station MS repeater mark Ma, and illustration for explaining each image of a corresponding mark Mb for connecting adjacent repeater RS together It is. Electronic map MP displayed in the server 4, the repeater mark Ma of each repeater _RS 1 _{to RS 19} and base unit MS, corresponding mark Mb for connecting adjacent repeater RS together, handset marks Mc for each child device SS, And it is explanatory drawing for demonstrating each image of the corresponding | compatible mark Md which connects the subunit | mobile_unit SS and the relay machine RS.

  Hereinafter, embodiments of a wireless communication system will be described with reference to the accompanying drawings.

  First, the configuration of the wireless communication system 1 will be described with reference to the drawings.

As shown in FIG. 1, a wireless communication system 1 as a wireless communication system is installed on a remote island IS (an island having a mountain at the center as shown by the contour lines shown in the figure) as an example. It is composed of one master unit MS and a plurality of relay units (for example, 18 relay units RS _{1 to} RS ₁₈ and one relay unit RS ₁₉ described later. Hereinafter, also referred to as a relay unit RS unless otherwise distinguished) A wireless network 2 and a server 4 installed at a remote location away from the remote island IS and connected to the wireless network 2 via a communication infrastructure 3 such as the Internet, for example, a child that has established communication with the relay RS opportunity for the worker to work in this remote island of carrying the (5 such as child device SS ₁ ~SS _5. below, in particular, also referred to as a slave unit SS when no distinction is required) It is collected and capable of displaying the broadcast (operator information) server 4.

  Note that the worker information is, for example, movement information indicating the activity / pause of the worker or position information indicating the current position of the worker, and a vibration sensor (not illustrated) provided in each slave unit SS. One of the handset information indicating the detection state of the vibration sensor (whether or not vibration is detected) indicated by the signal output from the terminal is used as the movement information, and the GPS (not shown) provided in each handset SS. (Global positioning system) One piece of slave information output from the receiver is used as position information. Moreover, each subunit | mobile_unit SS is comprised as a specific low-power radio station which operate | moves with the battery built in as an example, and performs data communication between repeater RS.

  For example, as shown in FIG. 2, each relay RS includes a power supply unit 11, a position detection unit 12, an electric field detection unit 13, a processing unit 14, a wireless communication unit 15, and a storage unit 16. Further, in this example, as an example, the base unit MS is configured to have a known gateway function for connecting the wireless network 2 and the communication infrastructure 3 in addition to the configuration of the relay unit RS. For this reason, below, description about the structure of the main | base station MS is abbreviate | omitted by demonstrating each component of relay machine RS. Note that all the relays RS may be configured as a common configuration having a gateway function, and any one of the relays RS may be used as the base unit MS.

  The power supply unit 11 is, for example, a so-called autonomous power source including a power generation device using natural energy (solar power, wind power, hydropower, tidal power, etc.), a charging control device, and a charging unit (not shown) such as a battery. The power supply for operation is supplied to each component such as the position detection unit 12 in the relay RS. As an example, the position detection unit 12 includes a GPS receiver, detects the current position of the relay RS, and outputs position information D1 indicating the current position. The electric field detection unit 13 detects electric field intensity (for example, electric field strength) by detecting the received electric field strength of one or more adjacent relay RSs (hereinafter also referred to as adjacent relays RS) among other relays RS. A number D2 is output. For example, the electric field detection unit 13 detects the received electric field strength of a signal in which the received electric field strength of the received signal is equal to or higher than a predetermined threshold electric field strength (that is, the received electric field strength is the threshold electric field strength). As a result, the repeater RS (including the master unit MS) is located within a range in which it can communicate directly with the own unit. The received electric field strength for the adjacent relay RS) is detected.

  The processing unit 14 is configured by a computer, for example, and operates according to an operation program stored in the storage unit 16 to execute position information acquisition processing, neighboring device information acquisition processing, own device information acquisition processing, and route construction processing. . Further, the processing unit 14 performs communication with the child device SS by executing communication processing with the child device, and performs communication with other relay device RS by executing communication processing with the relay device. Further, in addition to these processes, the processing unit 14 of the base unit MS transmits a gateway function (for example, information acquired from the wireless network 2 using SSL or the like and transmits it to the server 4 via the communication infrastructure 3. On the contrary, a server-to-server communication process for performing data communication with the server 4 by performing a function of decrypting information received from the server 4 via the communication infrastructure 3 and outputting the information to the wireless network 2 is executed. .

  In this position information acquisition process, the processing unit 14 acquires the position information D1 from the position detection unit 12 of the own machine and uses the identification information of the own machine (the own machine ID; hereinafter also referred to as the identification information ID of the own machine). Correspondingly, the information is stored in the storage unit 16 as a part of the possessed information held by the own device (position information D1 of the own device). In the adjacent device information acquisition process, the processing unit 14 executes, for example, an anti-relay communication process, and performs another transmission request for the transmission request simultaneously transmitted from the wireless communication unit 15 of the own device to the other relay RS. When receiving a response from the relay RS, the electric field information D2 output from the electric field detection unit 13 of the own device is used as identification information (other relays) of the other relay RS included in the received response. The ID of the machine RS, which corresponds to the identification information ID of another relay machine RS, and has a received electric field strength that can be directly communicated with the own machine (in other words, within a range that can communicate directly with the own machine) And the adjacent unit information D3 indicating the adjacent repeater RS (including the base unit MS) is stored in the storage unit 16 as a part of the possessed information held by the own unit. In this case, when the processing unit 14 detects a plurality of relays RS as the adjacent relays RS, all the information about each relay RS (information in which the electric field information D2 is associated with the identification information ID) is adjacent information D3. And stored in the storage unit 16.

  Further, in the own device information acquisition process, the processing unit 14 is, for example, an operating power supply (for example, a DC voltage having one or more voltage values) supplied from the power supply unit 11 to each component in the relay RS. And the measured voltage value is associated with the identification information of the own device (the own device ID) and stored in the storage unit 16 as a part of the possessed information held by the own device (own device information D4). Remember me.

  In the route construction process, for example, the processing unit 14 executes a communication process with the relay device to communicate with the processing unit 14 of the other relay device RS (including the processing unit 14 of the parent device MS). Based on the adjacent device information D3 and the known algorithm for constructing the autonomous decentralized wireless network 2 (for example, the ad hoc network algorithm), the route from the own device to the parent device MS is determined, and this The other relay device RS (including the master unit MS) that is the transmission destination of the possession information of the own device is determined on the route, and the possession information that the own device possesses the identification information ID of the determined relay device RS of the transmission destination The information is stored in the storage unit 16 as part of the information (relay route information D5). Further, the processing unit 14 (including the processing unit 14 of the base unit MS) of each relay device RS installs a new relay device RS in the wireless network 2 or disconnects a part of the wireless network 2 (transmission). When communication with the relay RS becomes impossible due to a failure of the previous relay RS, etc., a new wireless network 2 is constructed by executing the route construction process again (that is, relaying) The route information D5 is updated).

  For example, the wireless communication unit 15 performs data communication with the slave unit SS and other relay units RS (including the base unit MS) via the antenna 15a in the CSMA / CA with Ack method. The storage unit 16 is constituted by a semiconductor memory such as a ROM or a RAM, for example.

  The server 4 is configured by a computer including a display device (for example, a liquid crystal display) as an example. Further, the server 4 performs data communication with the parent device MS via the communication infrastructure 3 and executes display information creation processing, display processing, and display information transmission processing.

  In this display information creation processing, the server 4 performs the data communication with the base unit MS, and the base unit MS and the base unit MS included in the possessed information (in this example, the base unit MS and a plurality of relay units RS) acquired from the base unit MS. Based on the identification information ID, position information D1 and neighboring machine information D3 for a plurality of relay machines RS, a relay machine mark Ma (in this example, for example, a star mark in the parent machine MS) is displayed at the current position of each relay machine RS. , A square mark in the relay RS), and a correspondence mark Mb (this book) indicating a correspondence relationship between the relay RS and other relay RSs (including the master MS) that are adjacent to the relay RS In the example, as an example, display information D11 for displaying on the electronic map MP a line mark that connects adjacent relays RS one-on-one is created.

  Further, in this display process, the server 4 uses the relay information RS on the electronic map MP and the map information D12 stored in advance to display the electronic map MP and the created display information D11. A relay machine mark Ma is added to each position of the base station MS, and a corresponding mark Mb for connecting adjacent relay machines RS is added between the relay machine marks Ma of the adjacent relay machines RS to generate and display an image Display on the screen of the device.

  In this display information transmission process, when the server 4 receives a transmission request from a mobile terminal 5 such as a smartphone, a tablet terminal, or a portable personal computer connected to the communication infrastructure 3, the display information D11 and the map information D12 are displayed. (Or the image information described above) is transmitted to the portable terminal 5 via the communication infrastructure 3. As a result, in the wireless communication system 1, the same image as the server 4 can be displayed on the screen also in the mobile terminal 5.

  Next, the operation of the wireless communication system 1 will be described with reference to the drawings.

  In this wireless communication system 1, first, a plurality of relay units RS and a master unit MS (hereinafter, a plurality of relay units) are located in an area where the worker carrying the handset SS intends to operate (in FIG. 1, the entire remote island IS as an example). The machine RS and the parent machine MS are collectively referred to as a relay machine RS). In this case, it is possible to determine the installation position of the relay RS, etc. in advance, and install it at the determined position. For example, it is possible to grasp the situation such as a disaster that occurred in this area or When an operator needs to enter a remote island IS for recovery work, the relay machine RS or the like may be installed in a scattered state by dropping it from the sky with a helicopter or the like. In such a case, the repeater RS or the like is not necessarily accurately installed at each installation position studied in advance, and may be installed outside the installation position. In addition, about the main | base station MS, you may bring in the installation position (target position) considered beforehand, and may install by dropping on the ground from the sky.

  Next, in the relay device RS and the like of the wireless communication system 1, the power supply unit 11 starts supplying the operation power to each component in the own device. Thereby, relay machine RS etc. transfer to an operation state. In this state, the position detection unit 12 performs an operation of outputting position information D1 indicating the current position. First, the processing unit 14 executes position information acquisition processing to acquire the position information D1 and associate it with the identification information ID of the own device (partial information held by the own device (the position of the own device)). Information D1) is stored in the storage unit 16.

  Subsequently, the processing unit 14 executes adjacent device information acquisition processing. In this adjacent device information acquisition process, as described above, the processing unit 14 receives its own electric field detection unit 13 when receiving a response from another relay RS to a transmission request transmitted to another relay RS. As the adjacent device information D3 indicating the adjacent repeater RS having a received electric field strength communicable with the electric field information D2 output from the base station corresponding to the identification information ID of another repeater RS included in the received response. Then, the information is stored in the storage unit 16 as a part of the holding information held by the own device. In this case, when the processing unit 14 sequentially receives responses from a plurality of other repeaters RS, the processing unit 14 uses the electric field information D2 when these responses are received as the identification information of the other repeaters RS included in each response. All the information is stored in the storage unit 16 as the adjacent device information D3 in association with the ID.

In this case, a configuration in which the electric field information D2 of the adjacent repeater RS is stored as it is (as it is a numerical value indicating the strength) or a configuration in which the electric field information D2 is ranked and the rank information indicating the rank is stored can be employed. However, in this example, the latter configuration is adopted. In this example, the electric field information D2 is ranked in descending order of strength (in this example, in order to facilitate the understanding of the invention, there are three levels (rank A having a strong strength, rank B having a medium strength, and The ranks are classified into ranks C) having low strength), and codes A, B, and C indicating the ranks are stored as electric field information D2. In this example, as an example, the relay RS and the like are the contents shown in the adjacent electric field strength table TB (table in which the electric field information D2 of the pair of adjacent relays RS is gathered) in FIG. And a pair of adjacent repeaters RS. For example, the base station MS becomes a pair of adjacent repeaters RS with the field strength of the relay RS ₆ and rank C, and becomes a pair of adjacent repeaters RS with the field strength of the relay RS ₁₂ and rank C, and the relay RS ₁₄ And a pair of adjacent repeaters RS with the electric field strength of rank C. Further, the relay RS ₅ is a pair of adjacent relays RS with the field strength of the relay RS ₄ and rank A, and is a pair of adjacent relays RS with the field strength of the relay RS ₁₁ and rank B. And

  In addition, the processing unit 14 executes the own device information acquisition process, measures the voltage value of the operating power supply supplied from the power supply unit 11, associates this voltage value with the identification information ID of the own device, and The information is stored in the storage unit 16 as a part of the possessed information held by the machine (own machine information D4). The execution timing of the own device information acquisition process may be any timing before or after the execution of the position information acquisition process and before or after the execution of the adjacent device information acquisition process.

  Next, in the relay station RS or the like, the processing unit 14 executes a route construction process. In this route construction process, the processing unit 14 executes a communication process with the relay device to communicate with the processing unit 14 of the adjacent relay device RS (including the parent device MS), and uses the adjacent device information D3. The route from the own device (relay device RS) to the parent device MS is determined by an algorithm (ad hoc network algorithm in this example), and the autonomous distributed wireless network 2 is constructed. In the construction of the wireless network 2, the processing unit 14 determines an adjacent repeater RS (including the master unit MS) as a transmission destination of the own device information on this route, and determines the determined adjacent repeater RS. Identification information ID is memorize | stored in the memory | storage part 16 as some holding information (relay route information D5) which an own machine holds.

As a result, in this example, as shown in FIG. 3, the relay RS ₁₆ has three relays RS ₈ , RS ₉ , and RS ₁₀ as adjacent relays RS. Assume that the machine RS ₉ is a destination device as shown in FIG. In this way, in this example, the transmission destination of the relay RS ₁₆ is the relay RS ₉ (that is, the upstream device of the relay RS ₁₆ is the relay RS ₉ ), and the transmission destination of the relay RS ₉ and the relay are relayed. machine destination next repeater RS ₈ of RS _1, the transmission destination of the transmission destination repeater _{RS 18} of the transmission destination repeater _{RS 15} in the relay device RS ₈ is repeater RS _2, and the destination of the repeater RS ₂ There next repeater RS _7, destination next repeater _{RS 14} in the relay device RS _7, a first relay path destination repeater _{RS 14} is the master unit MS, destination repeater _{RS 10} is a relay machine _{RS 17,} and the destination repeater RS ₃ next repeater _{RS 17,} the transmission destination of the relay device RS ₃ to send the repeater RS ₅ is the repeater RS ₄ becomes a transmission destination of the repeater RS ₄ relay The transmission destination of the machine RS _{11 and} the transmission destination of the relay machine RS ₁₂ are medium. Splicing machine _{RS 13,} and the destination is next repeater RS ₆ of the repeater _{RS 13,} the wireless network 2 is composed of the second relay route destination repeater RS ₆ is the parent station MS is constructed Shall.

  Subsequently, in the relay RS and the like, the processing unit 14 executes communication processing with the relay machine, and wirelessly transmits all possessed information held by the own machine to the relay machine RS specified as a transmission destination in the own machine. The transmission operation to be transmitted via the communication unit 15 and the communication processing with the relay device are executed, and the other relay device RS from the other relay device RS to which the own device is the transmission destination via the wireless communication unit 15 And the reception operation of storing the information in the storage unit 16 as a part of the possession information of the own device is repeatedly executed.

As a result, all the possessed information of the relay RS located on the downstream side in the first relay route is sequentially sent to the relay RS located on the upstream side, so that it is included in the first relay route. All the holding information of all the relay devices RS ₁₆ , RS ₉ , RS ₁ , RS ₈ , RS ₁₅ , RS ₁₈ , RS ₂ , RS ₇ , RS ₁₄ is sent to the base device MS Is stored in the storage unit 16. Also, the master unit MS also holds all the relay information RS ₁₀ , RS ₁₇ , RS ₃ , RS ₅ , RS ₄ , RS ₁₁ , RS ₁₂ , RS ₁₃ , RS ₆ included in the second relay route. And stored in the storage unit 16 of the base unit MS.

Base unit MS periodically executes server-to-server communication processing, and stores each piece of holding information acquired from each of relay units RS _{1 to} RS ₁₈ stored in storage unit 16 together with the holding information of its own unit, as well as the communication infrastructure. 3 to the server 4.

The server 4 receives and stores each possessed information in the base unit MS and each of the relay units RS _{1 to} RS ₁₈ transmitted from the base unit MS. At this time, the server 4 stores the adjacent device information D3 included in each possessed information in, for example, an adjacent electric field strength table TB as shown in FIG. In addition, the server 4 executes display information creation processing and display processing based on the adjacent device information D3 indicated in the adjacent electric field strength table TB and the position information D1 in each of the relay devices RS _{1 to} RS ₁₈ .

  First, in this display information creation processing, the server 4 identifies the identification information ID about the relay RS included in the possessed information received (acquired) from the base unit MS (in this example, each possessed information such as the relay RS). And the image information for displaying each repeater mark Ma of the master unit MS and the plurality of relay units RS at the corresponding positions of the base unit MS and the plurality of relay units RS on the electronic map MP based on the position information D1. As a part of the display information D11.

  In addition, the server 4 determines whether the adjacent relay machines RS are based on the neighboring machine information D3 included in the possessed information (in this example, each possessed information of the master machine MS and the plurality of relay machines RS) acquired from the master machine MS. Information for displaying image information for displaying on the electronic map MP a corresponding mark Mb as a line mark for connecting each relay machine mark Ma of a device (master MS and a plurality of relay machines RS) one-to-one with a line Created as another part of D11. Moreover, the server 4 sets the line mark of a different display form as the corresponding mark Mb according to the received electric field strength between adjacent repeaters RS (according to ranks A, B, and C in this example). As an example, when the received electric field strength between adjacent repeaters RS is rank A, the server 4 of this example uses the line mark in the thick solid line display form as the corresponding mark Mb, and in the rank B, the thin solid line display form. This line mark is the corresponding mark Mb, and in the case of rank C, the line mark in the thin broken line display form is the corresponding mark Mb. Further, the server 4 relays the corresponding mark Mb displayed on the route constituting each relay route (in the present example, the first relay route and the second relay route) of the corresponding marks Mb. The display mark (for example, a different color) that can be visually distinguished from the corresponding mark Mb that does not constitute a route is used.

  Next, in this display process, the server 4 uses the display information D11 created in the display information creation process and the map information D12 stored in advance to display the electronic map MP. A repeater mark Ma is added to each position of each repeater RS and base unit MS on the map MP, and a corresponding mark Mb connecting adjacent repeaters RS is added between repeater marks Ma of this adjacent repeater RS. The generated image is generated and displayed on the screen of the display device as shown in FIG. Note that the numbers “1” to “18” in FIG. 4 indicate the identification information ID of each relay RS.

  As a result, the administrator of the server 4 can determine the position of each relay RS and the base unit MS on the electronic map MP, and each relay based on the image (image in FIG. 4) displayed on the screen of the display device. It is possible to confirm the state of which device of the machine RS and the parent machine MS is the adjacent relay RS and the received electric field strength between the adjacent relays RS.

Furthermore, the administrator of the server 4 can also check whether there is a detour on the relay route between the adjacent relays RS based on the image of FIG. When the presence of the relay RS is confirmed, a new relay RS for forming a detour is installed on the remote island IS. In the example illustrated in FIG. 4, the administrator of the server 4 has a detour on each relay RS in the second relay route, but each relay device in the first relay route. It can be confirmed that there is no detour other than the route via the relay device RS ₁₄ in the route from the RS ₇ and RS ₁₈ to the parent device MS. The administrator of the server 4, the new relay device RS one (repeater RS ₁₉₎ that expansion in the area indicated by the circle indicated by hatching in FIG. 4, the repeater RS ₁₉ each Relays other than the route via the relay RS ₁₄ are routed from the relays RS ₇ , RS ₁₈ to the master MS via the adjacent relays RS of the relays RS ₇ , RS ₁₄ and the master MS. It can be determined that there is a high possibility that a route (detour) is formed (that is, there is a high possibility that the existence of a relay route without a detour is eliminated). As a result, the administrator of the server 4 issues an instruction to install the relay RS ₁₉ in this area to the installation worker of the relay RS, and installs the relay RS ₁₉ .

When the relay RS ₁₉ installed in the above-described area shifts to the operating state in this way, in the relay RS ₁₉ , the position detection unit 12 starts outputting the position information D1 indicating the current position, and the processing unit 14 executes position information acquisition processing, associates this position information D1 with the identification information ID of the own apparatus, and stores the information as a part of the possessed information held by the own apparatus (position information D1 of the own apparatus). Remember me. Further, the processing unit 14 executes own device information acquisition processing, measures the voltage value of the operating power supplied from the power source unit 11 of the own device, and corresponds the voltage value to the identification information ID of the own device In addition, it is stored in the storage unit 16 as a part of the possessed information held by the own device (own device information D4).

Further, in the base unit MS and each of the relay units RS _{1 to} RS ₁₉ (hereinafter, the plurality of relay units RS and the base unit MS are collectively referred to as a relay unit RS), each processing unit 14 performs an adjacent unit information acquisition process. Is executed, and the adjacent unit information D3 indicating the adjacent repeater RS is stored in the storage unit 16 as part of the possessed information held by the own unit. Here, the new repeater RS ₁₉ becomes the adjacent repeater RS with the existing repeater RS ₇ and the master unit MS and rank C, and becomes the adjacent repeater RS with the existing repeater RS ₁₄ and rank B. If this is the case, in this repeater RS ₁₉ , the respective electric field information D2 corresponding to the identification information ID of the existing repeaters RS ₇ and RS ₁₄ and the master unit MS is stored in the storage unit 16 as the adjacent unit information D3. .

Further, in the base unit MS, the relay device RS corresponding to the identification information ID of the new relay device RS ₁₉ is added to the electric field information D2 of the relay device RS ₁₄ corresponding to the identification information ID of the existing relay device RS _{14. The 19} electric field information D2 is added and stored in the storage unit 16 as the adjacent device information D3 (the adjacent device information D3 is updated). Further, the repeater RS _7, each of the electric-field information D2 which is to correspond to the identification information ID of the existing repeater _{RS 2, RS 14, RS 18} , is made to correspond to the identification information ID of a new repeater _{RS 19} The electric field information D2 of the repeater RS ₁₉ is added and stored in the storage unit 16 as the adjacent device information D3 (the adjacent device information D3 is updated). In addition, in relay RS ₁₄ , each electric field information D2 corresponding to the identification information ID of existing relays RS ₇ and RS ₁₈ and base unit MS is made to correspond to the identification information ID of new relay RS _19. The electric field information D2 of the relay device RS ₁₉ is added and stored in the storage unit 16 as the adjacent device information D3 (the adjacent device information D3 is updated).

Next, in each of the existing relay RSs (including the base unit MS) of the wireless communication system 1, each processing unit 14 has a new relay RS installed in the wireless network 2. A new wireless network 2 is constructed (that is, the relay route information D5 is updated) by executing the route construction process again together with the processing unit 14 of the relay machine RS ₁₉ ).

  In this route construction process, each processing unit 14 executes communication processing with the repeater to communicate with the processing unit 14 of the adjacent repeater RS (including the master unit MS), and the updated adjacent unit information D3 is transmitted. By using a known algorithm used, a route from the own device (relay device RS) to the parent device MS is determined, and an autonomous distributed wireless network 2 is constructed, which becomes a transmission destination of the possessed information of the own device. The identification information ID of the adjacent repeater RS (including the master unit MS) is stored in the storage unit 16 as a part of the retained information (relay route information D5) held by the own device.

In this example, the second relay route is the same route as the original route, but for the first relay route, the transmission destination of the relay RS ₁₉ is the relay RS _{14 in} the original route, It is assumed that the possession information of the relay machine RS ₁₉ is updated to the relay path to which the path transmitted to the parent machine MS via the relay machine RS ₁₄ is added.

  Subsequently, in each repeater RS (including the base unit MS), the processing unit 14 executes communication processing with respect to the repeater, and all possession information held by the own device is defined as a transmission destination in the own device. The transmission operation to transmit to the relay RS that is being transmitted via the wireless communication unit 15 and the relay relay communication processing are performed, and the wireless relay unit 15 transmits the other relay device RS to which the own device is the transmission destination via the wireless communication unit 15. The holding operation of the other relay RS is received, and the reception operation of storing the information in the storage unit 16 as a part of the holding information of the own device is repeatedly executed.

Thereby, all the relay devices RS ₁₆ , RS ₉ , RS ₁ , RS ₈ , RS ₁₅ , RS ₁₈ , RS ₂ , RS ₇ , RS ₁₄ , RS ₁₉ included in the relay route of the first neighboring device information D3. Are stored in the storage unit 16 of the master unit MS. Also, the master unit MS also holds all the relay information RS ₁₀ , RS ₁₇ , RS ₃ , RS ₅ , RS ₄ , RS ₁₁ , RS ₁₂ , RS ₁₃ , RS ₆ included in the second relay route. And stored in the storage unit 16 of the base unit MS.

When the base unit MS executes the server-to-server communication process, the base unit MS acquires the holding information acquired from each of the relay units RS _{1 to} RS ₁₉ stored in the storage unit 16 together with the own unit holding information, and the communication infrastructure 3. To the server 4.

The server 4 receives and stores each possession information of the base unit MS and each of the relay units RS _{1 to} RS ₁₉ . At this time, the server 4 stores the adjacent device information D3 included in each possessed information in, for example, an adjacent electric field strength table TB as shown in FIG. In addition, the server 4 executes display information creation processing and display processing based on the adjacent device information D3 indicated in the adjacent electric field strength table TB and the position information D1 in each of the relay devices RS _{1 to} RS ₁₈ .

First, in this display information creation process, the server 4 has the identification information ID and position information D1 about the relay RS included in the possession information (each possession information such as the relay RS) received (acquired) from the base unit MS. On the electronic map MP, the relay unit marks Ma of the base unit MS and the plurality of relay units RS are displayed at corresponding positions of the base unit MS and the plurality of relay units RS (including the relay unit RS ₁₉ ). Image information is created as part of the display information D11.

  In addition, the server 4 determines whether the adjacent relay machines RS are based on the neighboring machine information D3 included in the possessed information (in this example, each possessed information of the master machine MS and the plurality of relay machines RS) acquired from the master machine MS. Image information for displaying on the electronic map MP image information for displaying the corresponding mark Mb as a line mark for connecting the relay machine marks Ma of the devices (the base station MS and the plurality of relay machines RS) one-to-one. Create as part of others. Moreover, the server 4 sets the line mark of a different display form as the corresponding mark Mb according to the received electric field strength between adjacent relay machines RS. Further, the server 4 can display the correspondence mark Mb displayed on the route constituting each relay route among the correspondence marks Mb in a display form (for example, different from the correspondence mark Mb not constituting the relay route). Color) mark.

  Next, in this display process, the server 4 is displayed on the electronic map MP based on the display information D11 created in the display information creation process and the map information D12 stored in advance for displaying the electronic map MP. An image in which a relay machine mark Ma is added to each position of each relay machine RS and base unit MS and a corresponding mark Mb for connecting adjacent relay machines RS is added between the relay machine marks Ma of this adjacent relay machine RS Is generated and displayed on the screen of the display device as shown in FIG. Note that the numbers “1” to “19” in FIG. 6 indicate the identification information ID of each relay RS.

As a result, the administrator of the server 4 can determine each position of each relay machine RS and the parent machine MS on the electronic map MP, and each relay machine RS and the parent machine MS based on the image displayed on the screen of the display device. It is possible to confirm the state of which of these devices is the adjacent relay RS and the received electric field strength between the adjacent relays RS. In addition, the administrator of the server 4 has established a state in which a detour exists on all the routes constituting the first relay route due to the installation of the new relay RS ₁₉ (a state in which there is no detour). Can be confirmed). Thereby, installation of the main | base station MS and each relay machine RS to the remote island IS is completed.

  Thereafter, in the wireless communication system 1, when the worker carrying the child device SS starts work in the remote island IS, the relay device RS that has established communication with the child device SS The worker information (child device information) received from the child device SS by executing the child device communication processing is also included in the possession information of the own device and transmitted to the relay device RS (including the parent device MS) as the transmission destination. . Accordingly, the worker information transmitted from each slave unit SS is transmitted to the server 4 via the master unit MS. When the server 4 receives the worker information, the server 4 displays the slave unit mark Mc displayed at the current position of the worker (that is, the slave unit SS), and the relay unit RS of the relay unit RS established in communication with the slave unit SS. Correspondence mark Md (corresponding to a line mark that connects this slave unit SS and this repeater RS on a one-to-one basis as an example in this example) indicating the correspondence between mark Ma and slave unit mark Mc of this slave unit SS is electronic map MP. Information for display above is created by including it in the display information D11.

  Therefore, when the server 4 executes display processing based on the display information D11, as shown in FIG. 7, the relay device is located at each position of the relay device RS and the parent device MS on the electronic map MP of the remote island IS. A mark Ma is added, a corresponding mark Mb for connecting the relay machine marks Ma of the adjacent relay machines RS is added, a handset mark Mc is added to each position of each handset SS on the electronic map MP, and the handset An image to which the relay mark Ma of the relay RS communicating with the SS and the corresponding mark Md for connecting the slave marks Mc of the slave SS is added is displayed on the screen of the display device. Note that the numbers “1” to “5” displayed in the vicinity of the slave unit mark Mc in FIG. 7 indicate the identification information ID of each slave unit SS. Thereby, the administrator of the server 4 can grasp the situation of each worker in the remote island IS from the image displayed on the screen of the display device in this way.

  Further, after this, when a failure occurs in one of the relay devices RS and the relay route via the relay device RS is disconnected, the possession information of the failed relay device RS is not transmitted to the master unit MS. Therefore, it is not transmitted to the server 4 either. Since the server 4 periodically executes display information creation processing and display processing to update the image displayed on the screen of the display device, the relay machine mark Ma of the failed relay machine RS is displayed. Transition from non-display state. Therefore, the administrator of the server 4 can grasp that a failure has occurred in the relay RS that has shifted from the display state to the non-display state, and replaces the failed relay RS if necessary. It is possible to determine whether or not a new relay RS is installed.

  Also, instead of this configuration, the server 4 has sent the possession information for the relay RS that no longer has the possession information sent due to the occurrence of a failure or the like (the relay RS that can no longer obtain the possession information). When the position information D1 of the relay RS is used, the possession information is sent to the position of the relay RS on the electronic map MP indicated by the position information D1 (the possession information can be acquired). It is also possible to adopt a configuration in which the repeater mark Ma is displayed in a mode different from the display mode of According to this configuration, it is possible to more reliably grasp the position of the relay RS that has failed. The different modes include, for example, a mode in which the brightness is lowered with the same color, a mode in which the color is changed, and a mode in which the shape is changed.

  Further, when the server 4 receives a transmission request from the mobile terminal 5 such as a smartphone connected to the communication infrastructure 3, the server 4 executes display information transmission processing. In this display information transmission process, the server 4 transmits the display information D11 and the map information D12 (or the image information shown in FIGS. 4, 6, and 7) to the portable terminal 5 via the communication infrastructure 3. . As a result, in the wireless communication system 1, the same image as the server 4 can be displayed on the screen also in the mobile terminal 5. Furthermore, even in a configuration in which no display device is present in the server 4, it is possible to check the state of the relay device RS and the like in the portable terminal 5.

  As described above, in this wireless communication system 1, the relay device RS and the like (including the relay device RS and the parent device MS in this example) include the position information D1 indicating the current position of the own device and the adjacent relay device RS. The adjacent device information D3 in which the electric field information D2 indicating the received electric field strength and the identification information ID of the adjacent relay RS are associated with each other is transmitted as a part of the possessed information of the own device, and the server 4 acquires the information acquired from the master device MS. Based on the identification information ID, position information D1 and neighboring machine information D3 about the relay machine RS and the like included in the possessed information, the relay machine mark Ma to be displayed at the current position of the relay machine RS, the relay machine RS, etc. and this relay Execute display information creation processing for creating display information D11 for displaying on the electronic map MP a correspondence mark Mb indicating a correspondence relationship with another repeater RS serving as an adjacent repeater RS with respect to the machine RS or the like That.

  Therefore, according to this wireless communication system 1, based on the display information D11 and the map information D12 for displaying the electronic map MP, relay to each position of each relay machine RS and the parent machine MS on the electronic map MP. An image to which the machine mark Ma is added and the correspondence mark Mb indicating the correspondence relationship with the adjacent relay RS can be generated and displayed on the screen of the display device. For this reason, according to the wireless communication system 1, while installing the relay devices RS and the like in an arbitrary position in an actual area such as the remote island IS indicated by the electronic map MP (the target installation position is set in advance). Regardless of the need for precise installation at this installation position, the presence or absence of the adjacent relay RS for the relay RS, etc., without going to the installation position (installation location) of the relay RS, etc. be able to. Thereby, according to this radio | wireless communications system 1, also about the generation | occurrence | production of the failure in relay machine RS, etc. that the path | route used as a detour does not exist in the relay path | route of the wireless network 2 constructed | assembled by relay machine RS etc. It is possible to grasp without going to the installation position (installation place) of the repeater RS or the like.

  Further, in this wireless communication system 1, for example, a circle mark centered on the repeater mark Ma is created as the corresponding mark Mb, and the other repeater RS located within this circle mark is recognized as the adjacent repeater RS. Although a configuration is also conceivable, in this wireless communication system 1, a line between the repeater mark Ma of its own machine and the repeater mark Ma of the adjacent repeater RS is used as the correspondence mark Mb indicating the correspondence relationship with the adjacent repeater RS. A configuration is used to create a line mark that connects with. Therefore, according to this wireless communication system 1, the presence or absence of a relay RS serving as an arbitrary relay RS and the adjacent relay RS, and which relay RS is adjacent relay when the adjacent relay RS is present Whether it is RS can be grasped directly, that is, clearly based on the corresponding mark Mb created as a line mark.

  In addition, according to the wireless communication system 1, the server 4 sends the possession information for the relay RS that no longer holds the possession information due to the occurrence of a failure or the like (the relay RS that can no longer obtain the possession information). When the possession information has been sent to the position of the repeater RS on the electronic map MP indicated by the position information D1 using the position information D1 of the repeater RS when it has been Display information D11 for displaying the repeater mark Ma in a manner different from the display manner) can be created. Therefore, based on the display information D11 and the map information D12, the display information D11 can be created. Compared with the configuration in which the relay machine mark Ma of the relay machine RS to which the retained information is not sent is hidden by generating such an image and displaying it on the screen of the display device. , It is possible to grasp the position of the generated repeater RS of the failure or the like more reliably.

  Further, according to the wireless communication system 1, since the server 4 displays the above image on the screen of the display device provided in the server 4, the administrator of the server 4 uses the mobile terminal 5 or the like to establish the communication infrastructure 3. Without accessing the server 4, it is possible to know the presence or absence of the adjacent relay RS for the relay RS and the received electric field strength for the adjacent relay RS when the adjacent relay RS exists.

  The configuration of the wireless communication system 1 is not limited to the above configuration. For example, the own device information D4 such as the relay RS is also associated with the identification information ID and transmitted to the server 4 as part of the possessed information such as the relay RS. Therefore, it is possible to adopt a configuration in which the server 4 executes the relay machine information display process and displays the own machine information D4 such as the relay machine RS on the screen of the display device. Specifically, in this relay machine information display process, the server 4 is operated by the administrator with a pointing device such as a mouse, and the pointer is moved to the relay machine mark Ma displayed on the screen of the display device. When this is detected, the own machine information D4 of the relay machine RS etc. at the position of the relay machine mark Ma is displayed in correspondence with this relay machine mark Ma (for example, a so-called balloon in the vicinity of the relay machine mark Ma). Display in a manner). According to this configuration, it is possible to reliably and easily grasp the own device information D4 of the relay RS, etc., in the server 4 installed at a remote location away from the location where the relay RS is installed. In this way, in the configuration in which the own device information D4 such as the relay RS is not used in the server 4, the relay device RS may be configured not to include the own device information D4 of the own device in the possessed information. it can.

1 Wireless communication system
2 Wireless network
3 Communication infrastructure
4 Server Ma Relay machine mark Mb Compatible mark MP Electronic map MS Master machine RS Relay machine SS Slave machine

Claims (5)

Autonomous distributed type that is configured by one master unit and a plurality of repeaters and automatically constructs relay route information indicating a destination for finally transmitting the possessed information held by the repeater to the master unit A wireless network and a server that communicates with the parent device to acquire the possessed information of the relay device, and the plurality of relay devices are located within a range in which the identification information of the own device and a direct communication with the own device are possible The possessed information of the adjacent repeater acquired from the other repeater as one or more adjacent repeaters to be used as the retained information of the own device is used as the transmission destination in the relay route information of the own device. A wireless communication system that transmits to other repeaters defined as
The plurality of repeaters include a position detector that detects a current position and outputs position information indicating the current position, and detects a received electric field strength for the adjacent repeater and the received electric field for each adjacent repeater. An electric field detector that outputs electric field information indicating the strength, and the position information and neighboring machine information in which the electric field information and the identification information of the neighboring repeater are associated with each other. Send as part
The server is configured to display a repeater mark to be displayed at the current position of the repeater based on the identification information, the position information, and the neighboring device information about the repeater included in the possession information acquired from the master unit. And display information creation processing for creating display information for displaying on the electronic map a correspondence mark indicating a correspondence relationship between the relay device and the other relay device that is the adjacent relay device with respect to the relay device A wireless communication system for executing.   The server creates, as the correspondence mark, a line mark that connects between the repeater mark of the repeater and the repeater mark of the other repeater that is the adjacent repeater with respect to the repeater. The wireless communication system according to 1.   3. The wireless communication system according to claim 1, wherein the server creates the display information for displaying the repeater mark for the repeater in which the retained information that has been acquired cannot be acquired in a different manner.   The server includes a display device, displays the electronic map on a screen of the display device, and displays the relay machine mark and the corresponding mark on the electronic map based on the display information. 4. The wireless communication system according to any one of items 1 to 3. The plurality of repeaters transmit own device information indicating a state of a component constituting the own device as a part of the retained information of the own device,
When one of the relay machine marks displayed on the electronic map is designated by a pointer, the server displays the own machine information about the relay machine corresponding to the relay machine mark on the screen. The wireless communication system according to claim 4 to be displayed.

Images