JP2011055218A - Position associated radio relay device, and spot information relay system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a position associated radio relay device and an information relay system which are inexpensive and easy to be install, and enable the user to grasp these pieces of information by transmitting and relaying information of a transmission station spot. <P>SOLUTION: A code corresponding to an installed position is given to a relay station to be installed as each relay station, and then a relay device is disposed so that at least mutual interval becomes to be within a communication available distance. When data is transmitted toward a termination station from a transmission station by a transmission person belonging to the transmission station, each intermediate relay station decides the next relay station (transmission destination) existing within the communication available area towards the termination station along a line connecting a transmission station position and a termination station position corresponding to a transmission station code and a termination station code embedded in transmission data for data transmission. Then a spot of the transmission station position and the transmission data can be grasped by being correlated with each other by allowing the transmission data to reach the termination station by relaying this operation of transmission and reception in multi-stages. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wireless repeater having a self-powered power source and having a station code linked to an installation position, and a point information relay system that can be used to confirm a source station and a relay station.

Conventionally, there are many forms of repeaters for relay stations. For radio and television repeaters, MW, FM, VHF, and UHF frequencies are used, and terrestrial repeaters construct repeater towers at intervals of several tens of kilometers or mountain ridges, set repeaters, and for satellite broadcasting The satellite is used as a relay station, the reception antenna is directed toward the transmission side, power amplification is performed, and re-transmission is performed toward the destination. Since the transmission source, the relay station, and the reception destination are fixed, a function that only performs transmission and reception is sufficient. Since the transmission / reception distance is extremely large, the transmission power is large and the repeater is expensive. Instead, the number of repeaters is advantageously small. On the other hand, in a mobile phone, relay stations are arranged at appropriate intervals, and a mobile station (mobile phone) close to the mobile station requests the relay station to connect wirelessly. Each relay station or the equipment that manages it relays the mobile station that is within the scope of its own relay station. Each facility, which is the final receiving terminal, receives the reception antenna by relaying the former television, but the facility having each antenna is used to transmit or relay information related to the facility. Absent. Similarly, there are many patent documents in the field of mobile communication, and performance improvement is proposed as in Patent Documents 1 to 4. Mobile phone network relay stations are also used for telephone relaying, but it is usually not possible to use information related to the location of the relay station as a user. If it is necessary to determine which relay station the mobile phone user is in, the police may be able to use such information on emergency routes to some extent.
Television antennas are located on the roof of each facility, providing the perfect relay conditions as well as roof railings, bridges, and utility poles. In addition, there is an increasing demand for grasping point-in-time information related to locations such as local heavy rain, traffic congestion, and local public relations, and for connecting to safety measures, marketing, and advertising. The demand for a communication system that can be configured at low cost to grasp detailed point information such as the fact that there is a drastic change in the river increase due to heavy rain, causing floods and personal accidents, wanting to manage landslides due to rain, events in shopping streets, etc. Is growing. In response to these demands, conventional devices did not meet the demand.

JP-A-11-155169 JP-A-6-291717 JP 2001-36446 A JP 2002-198995 A

An object of the present invention is to provide a position-linked wireless repeater and an information relay system that are inexpensive and easy to install by transmitting and relaying information of a starting point so that a user can grasp the information. is there.

  The present invention provides a relay station installed as each relay station with a code corresponding to the installation position, arranges a repeater so that the distance between the relay stations is within a communicable distance, When transmitting data from the station to the station, the relay station on the way will follow the line connecting the station code (or own station) and the station position corresponding to the station code embedded in the transmission data and the station code. Then, toward the final station position, the next relay station (transmission destination) existing within the communicable distance is determined, transmitted, received, and this operation is relayed in multiple stages, so that the transmission data reaches the final station, The end station is characterized by a position-linked radio repeater that enables transmission data to be grasped in relation to the point of the station position from the station code embedded in the transmission data, and it is possible to configure an information relay system using this It is said. This will be described below.

The invention according to claim 1 is a position-linked wireless repeater,
The repeater includes an antenna, a band-pass filter, a high-frequency amplifier, a local oscillator, a mixer, a baseband filter, and a receiver and a transmitter having a combination of each or a part thereof, a CPU, A memory unit having a local code memory, a data memory, and a program memory and a power source, and the receiver receives high-frequency data received by the antenna, and the band-pass filter and the high-frequency amplifier do not require the high-frequency component. In the mixer, high-frequency data obtained by amplifying the amplitude of the high-frequency data to a size capable of mixing is mixed with the carrier signal generated by the local oscillator in the mixer, and the output is the baseband filter. And unnecessary frequency components are removed and passed to the CPU. In the state where unnecessary frequency components are removed by the baseband filter from the transmission data from the CPU, the mixer mixes with the carrier wave signal generated by the local oscillator, and removes unnecessary frequency components by the bandpass filter. Amplified by the high-frequency amplifier and transmitted as a transmission radio wave from the antenna, a station code memory stores a station code of a relay station where the repeater is installed, and a data memory receives or transmits The program memory stores a processing program executed by the CPU, and the CPU performs transmission / reception control processing, transmission data creation, relay destination calculation processing based on the processing program. And at least a power source for the receiver, the transmitter, the CPU, and the memo. Is intended to supply power for operation,
The station code of the repeater is a code that directly indicates the installation position of the relay station to be installed or a code that indirectly indicates the position of the relay station. From the station code and the station code of the final destination that is the final destination, and the station code of the originating station or the station code of the relay station and the origin station position corresponding to the station code of the end station or the relay station position and the end station position, the end station Including the station code of the next relay station determined in the direction toward the station, so that the station code of the station included in the transmitted or received data relayed to the end station The terminal user can grasp the data in association with the position of the terminal.

The invention according to claim 2 is the position-linked wireless repeater according to claim 1,
The installation position of the relay station indicated by the station code of the repeater is a location section where the relay station is installed or a ground point indicated by latitude and longitude.

The invention according to claim 3 is the position-linked radio repeater according to claim 1 or 2,
In the relay destination calculation process, the relay station that receives the transmitted data has the station code of the originating station or the station code corresponding to the station code of the relay station and the station code of the terminal station or the relay station The station code of the next relay station is determined in a direction toward the end station from the position and the end station position.

According to a fourth aspect of the present invention, in the position-linked wireless repeater according to any one of the first to third aspects,
The transmission data is created by using the determined station code of the next relay station as the transmission destination code of the data, putting the station code of the own station in the transmission source code, and the data contents to be transmitted as the source code and the final code. Is characterized by being created by leaving it unchanged.

The invention according to claim 5 is the position-linked radio repeater according to any one of claims 1 to 4,
The processing program, when the repeater that has received the transmitted data compares the destination code included in the data with the station code of its own station, Recognizing that it is relayed / transmitted transmission data, transmitting ACK (Acknowledge) data for confirmation of reception toward the transmission destination, calculating the next relay destination, and the own station as the transmission source If it does not match, it is determined that the transmission data is not directed to its own station, and the received repeater performs neither transmission of the ACK data nor calculation of the next relay station. And

A sixth aspect of the present invention is the position-linked radio repeater according to any one of the first to fifth aspects,
Transmission or reception of the repeater is one of weak wireless, specific power-saving wireless, Bluetooth, ZigBee, UWB as a communication means for providing a communicable distance for narrowing the range of the data transmission position from the originating code. It is characterized by using.

The invention according to claim 7 is the position-linked wireless repeater according to any one of claims 1 to 6,
The repeater removes, from the analog data, a sensor that detects analog data, an amplifier that amplifies the sensor, an analog-digital converter (AD converter), and a frequency component that is 1/2 or more of the sampling frequency of AD conversion. By having an anti-aliasing filter, it is possible to grasp the analog amount at the position of the repeater.

The invention according to claim 8 is the position-linked wireless repeater according to any one of claims 1 to 7, wherein the power source is a solar cell or a self-powered power source by a wind power generator. And

The invention according to claim 9 is a point information relay system using the position-linked radio repeater according to any one of claims 1 to 8,
The position-linked wireless repeaters are arranged in a matrix of length and breadth so that the distance between them is within a communicable distance, and the data is transmitted from the originating station toward the final station, The next relay station existing within the communicable distance is transmitted as a destination, received, and this operation is relayed in multiple stages, so that the transmission data reaches the final station, and the source station embedded in the transmission data From the code, it is possible for the end station to grasp transmission data in association with the point of the originating station position, connect a computer to the end station, and the user receives the data as point data via the computer .

The invention according to claim 10 is the point information relay system according to claim 9,
On the screen of the computer connected to the final station, the numerical value or graph of the data with respect to the position is displayed on the place classification or the map to be installed.

The invention according to claim 11 is the point information relay system according to claim 9 or 10,
By providing the user of the relay station with a list of stations on which the relay station or the user is displayed on the location map or map or on the list of locations or points to be installed, It is easy to grasp the local code or the user's code.

Since it is configured as described above, the position-linked radio repeater of the present invention and the relay system using the same enable the end-user to grasp the data related to the location of the originating station, which can be used for buildings and utility poles. For example, data such as rainfall at a point and wind speed can be collected in real time and used as disaster prevention information.

It is a block diagram which shows the structure of the position link | link radio | wireless repeater of this invention, an external appearance, and the figure which shows one embodiment of collective installation. It is a figure which shows the example which installed the position link | link radio | wireless repeater which concerns on this invention in a building, a utility pole, etc., and the example of how to determine the relay destination from a transmission station to the final station. It is a figure which shows one embodiment of the format of the data transmitted / received with the position cooperation radio repeater which concerns on this invention. It is a figure which shows the application example which has arrange | positioned the position link | link radio | wireless repeater which concerns on this invention, and created the point information map. It is a figure which shows the example which arrange | positions the position link | link radio | wireless repeater which concerns on this invention, and grasps | ascertains the position of the person who needs specific monitoring.

The position-linked wireless repeater according to the present invention provides a relay station installed as each relay station with a code corresponding to the installation position, arranges the repeaters so that the distance between them is within a communicable distance, When the originator transmits data from the originating station to the terminating station, the relay station on the way, the originating code embedded in the transmission data and the originating station position (or own station) corresponding to the terminating code and the terminating station Along the line connecting the positions, head to the final position, determine the next relay station (transmission destination) within the communicable distance, transmit, receive, and relay this operation in multiple stages, to the final station The transmission data arrives, and the end station can grasp the transmission data in association with the location of the origination position from the origination code embedded in the transmission data. Place and point by computer It is to the collection and management of the broadcast. Examples will be described below.

FIG. 1 is a block diagram showing the configuration of a position-linked radio repeater of the present invention, an external view, and a diagram showing an embodiment of collective installation. In the block diagram of 1-A, since it is a repeater, it has a receiver and a transmitter. In the receiver, the receiving antenna 101, the low noise amplifier (LNA) 102, the high frequency bandpass filter 103, the mixer 104, the local oscillator 105, the baseband filter 106, and the CPU controller, the CPU 107, the program memory 108, the data memory 109, and the local code. In the memory 110 and transmitter, there are a filter 111, a mixer 112, a local oscillator 113, a filter 114, a power amplifier 115, and a transmission antenna 116, a self-powered power source 117 as a power source, a sensor 118, an amplifier 119, and an anti-aliasing filter 120. , An AD converter 121, and an interface (PC-IF) 122 with an external personal computer 130. The ones 118 to 122 are not essential, but are convenient.

The environment in which the position-linked wireless repeater of the present invention is installed is mainly buildings and facilities used by humans such as houses, bridges, and telephone poles, and exists at relatively small intervals of about 100 m. . Therefore, it is sufficient that the distance between them is communicable, and the transmission / reception power is small compared with a radio or television repeater, which is called a normal repeater, and can be realized at a low price.
Moreover, since it is light in weight, it can be installed in anything. In a crowded urban space, there are a myriad of installation locations, making it easy to choose. For example, it can be used by attaching to a handrail of a house veranda or a television antenna.

When many position-linked wireless repeaters according to the present invention are installed, the position grasping state is determined depending on how the relationship between the installation interval and the communicable distance is taken. If the communicable distance is much larger than the installation interval, there will be many repeaters within the communicable distance range, so there is no problem in calculating and specifying the next repeater, but at the same time, the communication radio wave Since the risk of using a repeater increases, it is necessary to take measures against interference noise such as increasing the number of transmission frequencies in order to avoid interference.
Of course, if the communicable distance is smaller than the installation interval, transmission / reception is not possible. Therefore, assuming that communication is possible vertically, horizontally, or diagonally up, down, left, right, and left, the circle having the communicable distance as a radius has 5 or 9 relays. Since this is the most suitable, it can be used as a countermeasure against interference to the extent that this repeater may transmit at the same time (for example, in this range, the transmission frequency is changed for each repeater or the key of spread spectrum is used. Change). If sufficient interference countermeasures are taken, the installation interval can be set smaller than the communicable distance. When installing, select equipment that is close to the points on the assumed vertical and horizontal lines arranged at the installation interval. Since the position is specified in the vicinity of the originating station, the position resolution is determined by the installation interval of the relay stations. It can be grasped as point data within ½ of the installation interval of relay stations centering on the originating station. As the communicable distance, in the following short-range radio, the weak radio is about 15 m, the specific low power radio is about 500 m, Bluetooth is about 100 m (class 1), about 10 m (class 2), ZigBee is about 50 m, and UWB is about 10 m. Therefore, the installation interval of the relay station is determined in consideration of how often the position is desired to be specified.

The function of the configuration will be described with reference to FIG.
In the receiver, the reception antenna 101 receives the transmission radio wave transmitted from the nearest repeater. The magnitude of this radio wave is small depending on the distance and environment where it is sent, and the magnitude of the radio wave varies, so it is amplified to an appropriate magnitude by a low noise amplifier (LNA) 102. In general, an amplifier has an AGC function so that the magnitude of the signal falls within an appropriate range. Although the description from the receiving antenna 101 to the low noise amplifier (LNA) 102 has been simply described, the transmission carrier can be effectively received because it has a tuning function at the frequency of the transmission carrier.

The received radio wave is mixed with the local oscillation signal from the local oscillator 105 in the mixer 104, but before that, it passes through the high-frequency bandpass filter 103 in order to remove a signal having an unnecessary frequency. The high-frequency bandpass filter is a filter that leaves a frequency component with data on a carrier wave and removes other frequency components. Note that the high-frequency bandpass filter 103 may be disposed in front of the low noise amplifier (LNA) 102 as shown in FIG.
The output signal of the mixer 104 includes unnecessary signals such as a signal twice as large as the local oscillation signal in addition to the baseband signal. Therefore, in order to remove this unnecessary signal, the received signal is passed to the CPU 107 through the baseband filter 106 and processed. The baseband filter is a low-pass filter that passes a frequency component of data exchange with the CPU 107.

Before explaining the processing in the CPU 107, an example of the format of data transmitted and received will be explained. FIG. 3 is a diagram showing an embodiment of a format of data transmitted and received by the position-linked radio repeater according to the present invention. The data structure is digital data of any number of bits, and basically includes a header part, a source code part, a terminal code part, a source station code part, a destination station code part, and a data part. The header part is a data storage part for various recognitions such as a recognition flag for recognizing transmission data, an error correction flag for recognizing a signal error, and an ACK flag for confirming reception of data.
The source code, the end code, the source station code, and the destination station code are uniquely given to each repeater, as will be described later, and the terrestrial register (address, Latitude / longitude) or a station code (including a numeric number) linked thereto.
The origin code is the station code of the very first repeater to which the transmission data is transmitted, and it is kept unchanged every time it is relayed. Used to do.
The final code is the code of the final destination, which is also kept unchanged every time it is relayed,
The relay station on the way sees the code of the final destination, calculates a relay station capable of communication toward this, and performs transmission.
The transmission source station code is a code of a station that receives data from the previous station and is going to relay to another station, and changes because the station code of the relay station is given. The relay station gives its own station code as the data source station code, sees the end code, calculates the next relay station that can communicate in the direction toward this, and uses this code as the destination station code. In addition, the transmission data is configured and transmitted.
The destination station code is the code of the next relay station (destination) obtained as described above.
The data part is a part for storing data contents to be sent.

Next, functions of the CPU 107 and the memory will be described.
The data memory 109 is a memory that temporarily stores data to be transmitted upon reception or acquisition.
The station code memory is a memory that corresponds to each relay station, and stores a territory register (address, latitude / longitude, etc.) of the ground position where it is installed or a station code (including a numeric number) linked thereto. is there. Numbers and numbers are easy to understand with symbols.
The station code of each repeater is set as follows.
If you know where it will be installed, enter the code of the building. The code is input and set in the memory of the repeater or the computer of the centralized management in association with the location number or the location data of latitude / longitude. Alternatively, the latitude / longitude location data is acquired by the GPS device at the time of installation, and stored in the memory together with the code. Alternatively, the position information may be obtained by incorporating a GPS device in the repeater, but since the repeater is fixedly installed, the incorporation of the GPS device is wasteful in terms of cost.

Based on the program stored in the program memory 108, the CPU 107 performs functions such as transmission / reception control, AD conversion control, transmission data creation, relay destination calculation, station code match determination, transmission / reception ACK, and security check. This will be explained.
Regarding transmission / reception control, transmission data creation, relay destination calculation, station code match determination, transmission / reception ACK,
The CPU 107 receives the received data, reads the destination station code of the received data, compares the received station code with the own station code stored in the station code memory 110, and if it matches, it is relayed to itself. ACK (Acknowledge) data for confirmation of receipt is transmitted to the transmission destination. In the ACK data, the transmission destination station code and the transmission source station code are exchanged, and the ACK code in the header part is transmitted with a value corresponding to “return (reply)”. When the ACK data does not return even after a predetermined time has elapsed, or when a request for re-transmission (instructed by the header part) is requested in the ACK data, the transmission source transmits again to the transmission destination. . When the transmission is not received for a predetermined number of times, the transmission source calculates another transmission destination and transmits it there. When the transmission destination station compares the station codes and matches, the transmission destination station calculates the next transmission destination after transmitting the ACK data, and performs transmission with its own station as the transmission source. Accordingly, the own station code is input to the transmission source station code part of the transmission data structure, the calculated transmission destination station code is input to the transmission destination station code part, and transmission data is created and sent to the transmitter.
If the receiving station code of the received data does not match the own station code, it is determined that it is not the transmission data for itself, and the received repeater performs transmission of ACK data and transmission to the next station. Absent.
The transmission data at this stage is a temporal stream of the data itself and is called baseband. Since it cannot be transmitted as a radio wave as it is, it must be placed on a high-frequency signal (called a carrier) that can be transmitted.

The CPU 107 also performs AD conversion control in which an AD converter 121 is used as an instruction for taking in analog data and converting it into digital data. This repeater may be used for the purpose of collecting data in the installation environment. In that case, data is acquired by various sensors 118 such as temperature, humidity, wind speed, rainfall, water level, gas pressure, flow rate, and the like, and after passing through an appropriate amplifier 119 and anti-elicing filter 120, an AD converter 121 is obtained. The digital signal is taken into the CPU 107 and temporarily stored in the data memory 109 for transmission or sent in real time without being stored. Data such as rainfall at the point where the repeater itself is installed can be collected.

It should be noted that the security of communications, such as being surely received at the end, not received by others on the way, or unreadable even if received, has been introduced in many literatures, so use it. Can do.

In the transmitter, first, the baseband signal is passed through the filter 111 to remove unnecessary noise. Thereafter, the mixer 112 mixes with the local high frequency signal (carrier) from the local oscillator 113. The mixed signal has the frequency component of the sum and difference of the frequency of the local high-frequency signal and the baseband signal and other unnecessary components. Therefore, the unnecessary wave is removed by the filter 114 and amplified by the power amplifier 115. Transmit from the transmitting antenna 116.

For the sake of simplicity, the receiver and transmitter have been described with a single-stage mixer. However, conversion is often performed with a two-stage mixer. In this method, the first stage mixer converts between the baseband and the intermediate frequency (IF), and the second stage mixer converts the intermediate frequency and the transmission / reception frequency. A baseband filter and an intermediate frequency (IF) filter are inserted before and after the mixer. The intermediate frequency filter is a bandpass filter that passes the intermediate frequency and the baseband data on the intermediate frequency.
Needless to say, the reception antenna 101 and the transmission antenna 116 may be separate or may be combined. The reception antenna, transmission antenna, bandpass filter, high frequency amplifier, local oscillator, mixer, and baseband filter may be included in the receiver and the transmitter, respectively, or a part (for example, the local oscillator) may be shared. It is also possible to do.

Data can be exchanged between the repeater and the external computer 130.
If a PC-interface (PC-IF) 122 for exchanging data with an external personal computer 130 is provided, information can be input from the personal computer 130 and transmitted to the repeater. For example, it is possible to provide a service such as automatic transmission to a required partner just by putting store information of a shopping street, the number of people passing through, garbage collection information, etc. in a transmission column of a personal computer. In addition, data can be taken from the repeater to the personal computer 130, and a data point map can be created.

The function of the self-sufficiency power supply 117 is to supply the power of the repeater, and the environment where this repeater is installed is mainly the buildings and facilities used by humans such as houses, bridges, and power poles. Considering that it is desirable not to perform maintenance after installation unless there is a failure, it is desirable that the power source is self-powered. For this reason, it is preferable to be supplied mainly by power generation using solar cells. Wind power generation can also be used.

In the external view of 1-B, the position-linked wireless repeater 100 is constructed such that the repeater housing 123, the antennas 101 and 116, and the self-power supply 117 are assembled in a compact manner.

In this example, the 1-C repeaters are arranged in groups of 5 rows and 5 columns. The distance between the rows and columns is a distance that allows the repeater to communicate. In the actual installation of the repeater, since it is attached to the actual rooftop of the building or the utility pole, the distance of the matrix cannot be determined accurately, so it is an approximate arrangement, but it is sufficient if the relay is performed.

FIG. 2 is a diagram illustrating an example in which the position-linked wireless repeater according to the present invention is installed in a building or a utility pole, and an example of how to determine a relay destination from the originating station to the final station.
In FIG. 2A, the repeater is installed on a building, a utility pole, or the like, but the home position linkage radio repeater 200 is installed on a handrail 201 on the roof of the building, a television antenna 202, and a pole 203. In this example, as indicated by an arrow 204, the A station is transmitted as the originating station, the B station and the C station are relayed, and the D station is transmitted as the final station. In this way, information specifying the position of station A can be acquired.

An example of means for determining a relay station from the source station to the end station from 2-B to 2-E will be described. For simplicity, the relay station is represented by an array of □ dots in 21 rows and 21 columns. Each relay station has a station code corresponding to that point. In any example, relay is performed with the coordinates (1, 3) as the originating station and the coordinates (18, 11) as the final station. A circle centered on each relay station indicates a communicable range from the relay station.
In 2-B, the next relay station closest to the line connecting the origin A coordinate (1, 3) and the final Z coordinate (18, 11) with a straight line is calculated and relayed. Here, A, B, C, D, E, F, G, H, I, J, K, L, M, Z and relay stations are calculated and relayed at each relay station.

In 2-C, for each relay station, the next relay station closest to the line connecting the source relay station coordinates and the end station coordinates with a straight line is calculated and relayed. Here, A, B, C, D, E, F, G, H, I, J, K, L, M, Z and relay stations are calculated and relayed at each relay station.

In 2-D, it is a case where it is permitted to return or move away in the calculation of the next relay station. When relays are busy or difficult, it is possible to make detour relays. A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, Z and relay stations are calculated and relayed at each relay station. CD, FG, and GH are used to select a path that moves away.

In 2-B, 2-C, and 2-D, the communication directivity of the relay station is shown as an example only in the horizontal and vertical directions. However, if the directivity is omnidirectional or diagonal, Like E, relaying can be performed along a line connecting the origin A coordinate (1, 3) and the final Z coordinate (18, 11) with a straight line. A, B, C, D, E, F, G, H, I, Z and relay stations are calculated and relayed at each relay station.

Hereinafter, a point information relay system using a number of position-linked wireless repeaters according to the present invention will be described with reference to FIGS.
In both FIG. 4 and FIG. 5, the point information relay system is an interval within a communicable distance so that relaying is possible.
A relay station having a large number of position-linked radio repeaters arranged in a matrix, a computer arranged at a management point (starting and / or terminating), and having a management point repeater and a data exchange interface; The computer can map the data collected by the program according to the location, and graph the data on the map on the computer screen. A function that predicts the transition of data makes it possible to issue an alarm. At the station, the repeater itself has a sensor and an AD converter to monitor the data at the station, for example, monitor the number of passers-by with a surveillance camera, or via the station from the station computer Then, the management status of the facility, for example, the monitoring status of the suspicious person intrusion into the building, etc. can be sent and grasped at the end.

FIG. 4 is a diagram showing an application example in which a location information map is created by arranging the position-linked radio repeaters according to the present invention. In 4-A, relay stations having sensors such as temperature / wind speed / precipitation / thunder / lightning / water level are installed in the city and surrounding mountains and rivers. In urban areas, repeaters with sensors are installed on rooftops of houses and buildings, on TV antennas, and in mountainous areas, on poles laid. Measurement values from the sensors of each relay station are relayed and collected at a necessary time in an information center 401 in an urban area. For example, information on points A, C, and E is collected through A, B, C, D, E, F, G, H, I, J, and K. In this way, since the data for each point in time is collected in the information center 401, the data at each point is displayed as a map together with the map on the monitor screen on the computer as shown in 4-B. In the case of urgent information can be issued. For example, it is possible to predict the water level of the river at each point for rainfall in each region,
Quick response is possible, such as when there is a risk of breakdown. In the graph 402 displayed at each point on the map in 4-B, the horizontal axis represents time, the vertical axis represents rainfall, and the water level in the river.

FIG. 5 is a diagram showing an example in which the position-linked wireless repeater according to the present invention is arranged to grasp the position of a specific person who needs monitoring. For the person to be monitored, an RFID tag with an arm, a chest batch or the like and a communication distance of about 50 m is used. The information of the RFID tag is read by the reader of the repeater, and the data is relayed and sent to the monitoring facility 501. In this figure, A, B, C, D, E, F, G, H, I, and J are relayed in this order. The point B becomes the originating station, and the data is personal information of the RFID tag. In this way, it is understood that the person A is in the vicinity of the point B, and can always be grasped by mapping. If the temporal position of the person to be monitored is mapped on the map, it is possible to read even a tendency behavior pattern such as which road tends to pass. When the person to be monitored has a voice terminal, the monitoring facility 501 can issue an instruction such as “Please come back” to the person to be monitored via the repeater. In addition to the above-mentioned examples of applications, there is no spare time for enumeration, such as pollen information measurement maps, photochemical smog, oxidant measurement, and usage check.

In addition, by providing a station list that displays the relay station or user on the location map or map to be installed or the list of location sections or points to the user who uses the relay station, the station code of the destination Or it is convenient to make it easy to know the user's code. In particular, it is appropriate to provide a station list service on the user's computer.

  As described above, the position-linked wireless repeater according to the present invention can easily transmit and receive information by grasping the position where the repeater is installed, and can be easily installed in an urban building using an inexpensive repeater. In addition, since it is possible to communicate over long distances by connecting between short communication distances, the industrial applicability is extremely large.

100, 200 Position linked radio repeater 101 Receiving antenna 102 Low noise amplifier 103, 114 High frequency band pass filter 104, 112 Mixer 105, 113 Local oscillator 106, 111 Baseband filter 107 CPU
108 Program memory 109 Data memory 110 Local code memory 115 Power amplifier 116 Transmitting antenna 117 Self-powered power supply 118 Sensor 119 Amplifier 120 Anti-aliasing filter 121 AD converter 122 Interface (PC-IF)
123 repeater housing 130 external personal computer 201 handrail 202 television antenna 203 pole 204 arrow 401 information center 402 graph 501 monitoring facility

Claims (11)

The repeater includes an antenna, a band-pass filter, a high-frequency amplifier, a local oscillator, a mixer, a baseband filter, and a receiver and a transmitter having a combination of each or a part thereof, a CPU, A memory unit having a local code memory, a data memory, and a program memory and a power source, and the receiver receives high-frequency data received by the antenna, and the band-pass filter and the high-frequency amplifier do not require the high-frequency component. In the mixer, high-frequency data obtained by amplifying the amplitude of the high-frequency data to a size capable of mixing is mixed with the carrier signal generated by the local oscillator in the mixer, and the output is the baseband filter. And unnecessary frequency components are removed and passed to the CPU. In the state where unnecessary frequency components are removed by the baseband filter from the transmission data from the CPU, the mixer mixes with the carrier wave signal generated by the local oscillator, and removes unnecessary frequency components by the bandpass filter. Amplified by the high-frequency amplifier and transmitted as a transmission radio wave from the antenna, a station code memory stores a station code of a relay station where the repeater is installed, and a data memory receives or transmits The program memory stores a processing program executed by the CPU, and the CPU performs transmission / reception control processing, transmission data creation, relay destination calculation processing based on the processing program. And at least a power source for the receiver, the transmitter, the CPU, and the memo. Is intended to supply power for operation,
The station code of the repeater is a code that directly indicates the installation position of the relay station to be installed or a code that indirectly indicates the position of the relay station. From the station code and the station code of the final destination that is the final destination, and the station code of the originating station or the station code of the relay station and the origin station position corresponding to the station code of the end station or the relay station position and the end station position, the end station Including the station code of the next relay station determined in the direction toward the station, so that the station code of the station included in the transmitted or received data relayed to the end station A position-linked radio repeater characterized in that the terminal user can grasp the data in association with the position of the position. The position linkage according to claim 1, wherein the installation position of the relay station indicated by the station code of the repeater is a location section where the relay station is installed or a point on the ground indicated by latitude and longitude. Wireless repeater. In the relay destination calculation process, the relay station that receives the transmitted data has the station code of the originating station or the station code corresponding to the station code of the relay station and the station code of the terminal station or the relay station The position-linked radio repeater according to claim 1 or 2, wherein a station code of a next relay station is determined in a direction toward the final station from a position and a final station position. The transmission data is created by using the determined station code of the next relay station as the transmission destination code of the data, putting the station code of the own station in the transmission source code, and the data contents to be transmitted as the source code and the final code. The position-linked radio repeater according to any one of claims 1 to 3, wherein the position-linked radio repeater is created without being changed. The processing program, when the repeater that has received the transmitted data compares the destination code included in the data with the station code of its own station, Recognizing that it is relayed / transmitted transmission data, transmitting ACK (Acknowledge) data for confirmation of reception toward the transmission destination, calculating the next relay destination, and the own station as the transmission source If it does not match, it is determined that the transmission data is not directed to its own station, and the received repeater performs neither transmission of the ACK data nor calculation of the next relay station. The position-linked radio repeater according to any one of claims 1 to 4. Transmission or reception of the repeater is one of weak wireless, specific power-saving wireless, Bluetooth, ZigBee, UWB as a communication means for giving a communicable distance for narrowing the range of the data transmission position from the originating code The position-linked wireless repeater according to claim 1, wherein the position-linked wireless repeater is used. The repeater removes, from the analog data, a sensor that detects analog data, an amplifier that amplifies the sensor, an analog-digital converter (AD converter), and a frequency component that is 1/2 or more of the sampling frequency of AD conversion. The position-linked wireless repeater according to any one of claims 1 to 6, wherein an analog amount at the position of the repeater can be grasped by having an anti-aliasing filter. . The position-linked radio repeater according to any one of claims 1 to 7, wherein the power source is a self-powered power source using a solar cell or a wind power generator. The position-linked wireless repeaters are arranged in a matrix of length and breadth so that the distance between them is within a communicable distance, and the data is transmitted from the originating station toward the final station, The next relay station existing within the communicable distance is transmitted as a destination, received, and this operation is relayed in multiple stages, so that the transmission data reaches the final station, and the source station embedded in the transmission data From the code, it is possible for the end station to grasp transmission data in association with the point of the originating station position, connect a computer to the end station, and the user receives the data as point data via the computer A point information relay system using the position-linked wireless repeater according to any one of claims 1 to 8. 10. The point information relay system according to claim 9, wherein a numerical value or graph of the data with respect to the position is displayed on the place classification or map on the computer screen connected to the terminal. . By providing the user of the relay station with a list of stations on which the relay station or the user is displayed on the location map or map or on the list of locations or points to be installed, The point information relay system according to claim 9 or 10, characterized in that it is easy to grasp the station code or the user code.

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