JP2014175884A - Ground communication device writing-in device - Google Patents

Abstract

Provided is a terrestrial communication device writing apparatus capable of evaluating the performance of a terrestrial communication device considering an installation environment while realizing low power consumption of writing information writing processing to the terrestrial communication device.
A terrestrial communication device writing device for writing write information transmitted by the ground communication device to a ground communication device installed along a traveling path, at least writing information to be written to the ground communication device. An information storage unit to store, a transmission unit having a function of generating a write signal based on write information, a control unit having a function of receiving a signal input from the outside and outputting a control signal, and transmitting the write signal An antenna unit including an antenna.
[Selection] Figure 1

Description

  The present invention relates to a ground communication device writing device.

As a background art in this technical field, there is JP 2012-10546 A (Patent Document 1). In this publication, as a non-contact communication technology, “a receiving side antenna that is mounted on a device and receives power in a system that transmits power in a non-contact state to a device such as a moving body that uses electric energy as a power source; A power transmission side antenna that transmits power to the power receiving side antenna, and transmits power to a device that uses electrical energy as a power source in a non-contact state.The impedance of a transmission line that transmits AC power is detected Based on the reflection characteristics of the transmission line detected by the circuit, it is matched by adjusting the impedance of the matching circuit provided in the transmission line. These adjustments are adjusted by the control circuit ”(summary). reference).
Moreover, there exists Unexamined-Japanese-Patent No. 2006-59247 (patent document 2). In this publication, as a non-contact communication medium writing technique, “the stack control unit 22 transfers information stored in the information holding unit 21 to the RFID writer 3 and stores it in the storage unit 31. The stack control unit 32 sends a write command, The storage unit 31 is read and transferred to the write processing unit 33. The write processing unit 33 writes the information from the antenna unit 34 to the tag 1 and continues until the end condition is met. The notification is sent to the stack control unit 22, and the stack control unit 22 erases the corresponding information in the information holding unit 21. If the writing is not performed normally, the notification is sent and the information in the storage unit 31 is also sent. It is erased and the corresponding information in the information holding unit 21 is held as it is "(see summary).

JP 2012-10546 A JP 2006-59247 A

A battery-driven portable terrestrial communication device writing apparatus that mainly uses on-site writing operations is required to reduce the power consumption of the writing process because it is driven for a long time. In addition, since the performance of the ground communication device may vary due to the influence of its installation environment such as surrounding installations, the performance evaluation of the ground communication device after installation is performed each time the ground communication device is installed, It is necessary to guarantee its performance.
A system that performs non-contact communication with a communication device arranged on the ground includes, for example, a technique described in Patent Document 1, and a technique related to writing of a non-contact communication apparatus includes, for example, Patent Document 2. However, in the techniques of Patent Documents 1 and 2, writing to the ground side communication device after installation and characteristic evaluation of the ground communication device cannot be performed in the same system. Must be used separately. By having multiple devices, switching between writing and characterization requires troublesome replacement of the device, increasing the time it takes to work, the physical burden on the operator who carries the battery-equipped device, and the introduction and maintenance costs. There is a problem in this aspect. In addition, since a plurality of devices are operated, power consumption increases.

  An object of the present invention is to provide a terrestrial communication device writing apparatus capable of evaluating the performance of the terrestrial communication device in consideration of the installation environment while realizing low power consumption of writing processing to the terrestrial communication device.

  In order to solve the above problems, for example, the configuration described in the claims is adopted. As an example, a terrestrial communication device writing device for writing write information transmitted by the ground communication device to a ground communication device installed along a travel path, at least writing to the ground communication device. An information storage unit for storing write information, a transmission unit having a function of generating a write signal based on the write information, a control unit having a function of receiving a signal input from the outside and outputting a control signal, and the write signal An antenna unit including an antenna for transmitting a power wave, and the transmitter unit receives a write signal stored in the information storage unit and a power wave modulation unit that generates a power wave for driving the ground communication device, and a power wave And a variable power increase unit for amplifying the write signal, the gain of which can be controlled by a control signal from the control unit. It has a part, a.

  According to the present invention, it is possible to provide a terrestrial communication device writing device capable of reducing power consumption of writing processing to the terrestrial communication device and performing performance evaluation of the terrestrial communication device using a power wave defined by standards and specifications.

It is a figure which shows the 1st structure of the ground communication apparatus writing apparatus of 1st Example, and a ground communication apparatus. It is a block diagram of the mobile body control system using a ground communication apparatus. It is a figure which shows the format of the write signal in a 1st Example. It is a figure explaining operation | movement of the ground communication apparatus writing apparatus in a 1st Example. It is a figure which shows the preservation | save log after a process of the ground communication apparatus writing apparatus in 1st Example. It is a figure which shows the 2nd structure of the ground communication apparatus writing apparatus and ground communication apparatus in a 1st Example. It is a figure which shows the ground communication apparatus writing apparatus which detects the contact between apparatuses in a 2nd Example mechanically. It is a figure which shows the ground communication apparatus writing apparatus provided with the at least 1 set of folding-type space | interval setting leg in a 2nd Example. It is a figure which shows the ground communication apparatus writing apparatus provided with at least 2 types of antenna of the write antenna and performance evaluation antenna in a 2nd Example. It is a figure which shows the table content which memorize | stored each part switching information which the control part in a 3rd Example uses for the production | generation of a control signal. It is a figure explaining operation | movement in case a ground communication apparatus writer performs a write process with respect to the ground communication apparatus 119 in which multiple versions in a 3rd Example are mixed.

  Embodiments of the present invention will be described below with reference to the drawings.

  1-6 is a figure for demonstrating a present Example. FIG. 1 is a diagram showing a configuration of a terrestrial communication device writing apparatus according to an embodiment of the present invention and a terrestrial communication device to be written. FIG. 2 is a block diagram of a mobile control system using a ground communication device. FIG. 3 is a diagram showing a format of a write signal transmitted by the writing device, and FIG. 4 is a diagram for explaining the operation of the ground communication device writing device. FIG. 5 is a diagram showing an example of log contents stored after each process. FIG. 6 is a diagram illustrating a configuration of the ground communication device writing device including the reflected wave detection unit that detects the reflected wave from the antenna unit, and the ground communication device.

First, a mobile control system using a ground communication device to be written by the ground communication device writing apparatus according to the present embodiment will be described.
As shown in FIG. 2, the mobile control system includes a ground communication device 120 that is installed along a traveling path and transmits position information and the like, and an on-vehicle communication device that is mounted on the mobile body and receives information transmitted from the ground communication device. 11 and an on-vehicle controller 12 that controls the operation and driving of the moving body 10 based on the information.

  The on-vehicle communication device 11 transmits a power wave while the mobile body 10 is traveling, and the ground communication device 120 receives the power wave when the mobile body 10 passes, generates power from the received power wave, and starts up. The activated ground communication device 120 transmits the write information, and the on-vehicle communication device 11 receives it.

  The information transmitted by the ground communication device 120 includes, for example, information such as an installed position and an instruction speed at the location, and the on-board control device 12 operates the moving body based on the information. And control of driving. Therefore, as the information transmitted by the ground communication device 120, different information is set for each installation position.

  When newly writing information to the ground communication device 120 in this system or rewriting information already stored in the ground communication device 120, the ground communication device 120 according to the present embodiment is used. Desired information is transmitted through a wired interface or a wireless interface included in the wireless communication device 120 and is written in a memory in the ground communication device 120.

Next, the configuration of the ground communication device writing apparatus according to the first embodiment of the present invention will be described.
In FIG. 1, 101 is a terrestrial communication device writing device, 102 is a power drive unit that operates by receiving power, 103 is a signal generation unit that generates a write signal to be transmitted to the terrestrial communication device, and 104 is determined by standards and specifications. A power wave generating unit that generates a continuous signal of a predetermined frequency, 105 is a signal modulating unit that generates a write signal by receiving write information to write, 106 is a variable power amplifying unit that amplifies the write signal, and 107 is variable. An antenna unit that transmits a write signal from the power amplification unit 106 and receives a signal from the ground communication device, 108 is an antenna included in the antenna unit 107, 109 is a matching circuit unit configured to resonate the antenna 108, and 110 is an external unit A function for receiving a signal and transmitting a control signal to the signal generation unit 103, the matching circuit 107, and the like, and write information to be written A control unit having a function of transmitting to the signal modulation unit 105, a function of analyzing the power and modulation degree of the received signal, and the like, 111 is an interval measurement unit that measures an interval between the ground communication device writing device 101 and the object, Reference numeral 112 denotes a battery remaining amount detection unit that acquires the remaining amount of the battery, 113 a user interface unit that receives input from the user, 114 an operation mode setting unit that sets the operation mode of the terrestrial communication device writing device, and 115 a terrestrial communication Write information setting interface for externally setting write information to be written to the device, 116 is an information storage unit for storing write information to be written to the ground communication device, and 117 is a terrestrial information from a plurality of write information stored in the information storage unit 116 Write information selection unit 118 for selecting write information to be written in the communication device, 118 is power driven A battery for supplying power to 102, 121 is a memory for storing logs after writing processing and performance evaluation results, 119 is a ground communication device arranged on the road, 120 is a ground communication device write included in the ground communication device 119 This is a ground communication device antenna that receives a power wave or a write signal transmitted from the device 101 or the like, or transmits a transmission signal from the ground communication device 119.

  When the ground communication device writing device 101 writes data to the ground communication device 119, the signal modulation unit 105 uses the information such as write information to be written to the ground communication device selected by the write information selection unit 117. ASK (Amplitude Shift Keying) modulation can be written in the power wave generated by the power wave generation unit 104 to generate a write signal and transmit it from the antenna unit 107.

  Information such as write information to be written is selected from the write information stored in the information storage unit 116 by the user through the write information setting interface 116. This write signal is received by the ground communication device antenna 120, demodulated in the ground communication device 119, and written in an area for storing write information.

  FIG. 3 shows a format of information for instructing writing. In the figure, 301 indicates information indicating a write instruction, 302 indicates an address indicating which block is written when the write information is divided into a plurality of blocks, 303 indicates data of the designated block, and 304 indicates This is a check code for confirming that the transmitted information is correct.

  The ground communication apparatus 119 writes the data 303 to the block in the storage area of the write information indicated by the address 302 after confirming the correct contents with the check code 304. By writing the format information shown in FIG. 3 a plurality of times, the write information is written to the ground communication device 119. In this embodiment, the case where ASK modulation is applied to a power wave to transmit write information is described as an example. However, the modulation method is not limited to this, and the ground communication apparatus 119 is not limited to this. Any method can be used as long as data to be written can be transmitted.

  In order to confirm whether or not the write information has been correctly written, the ground communication device writing device 101 transmits an unmodulated power wave from the signal generation unit 104 to the ground communication device 209 from the antenna unit 107, and the ground communication device 209. And writing information in the writing information storage area is transmitted. The ground communication device writing device 101 receives this through the antenna unit 107 and confirms whether or not it matches the written content. After confirming normal writing, the memory 121 stores the identifier of the ground communication device 119 and the written information content.

  In general, the shorter the transmission distance between transmitting and receiving antennas, the lower the loss of wireless power, the more transmitted power can be transmitted to the receiving side. By making the distance between the antenna unit 107 of the ground communication device writing device 101 and the ground communication device antenna 120 close, it is possible to increase the transmission rate of the wireless power between the two, that is, to realize the writing processing with low power. However, when both antennas are brought close to each other, the impedance of the antenna unit 107 in a matched state is drawn into the impedance of the ground communication device antenna 120 and fluctuates, resulting in impedance mismatch between the signal generation unit 103 and the antenna unit 107. The phenomenon will occur.

  Because of this phenomenon, most of the power waves or write signals input to the antenna unit 107 are reflected due to impedance mismatching and are not transmitted to the ground communication device 119. As a result, the wireless power transfer rate is reduced.

  Therefore, the power wave generation unit 104 of the ground communication device writing apparatus 101 according to the present embodiment has a function of receiving the control signal transmitted from the control unit 110 and changing the oscillation frequency of the generated power wave to a predetermined frequency. Here, the predetermined frequency is a frequency at which a transmission signal from the antenna 108 of the ground communication device writing device 101 that has received the phenomenon of being drawn into the impedance of the ground communication device antenna 120 described above becomes a maximum output. When the frequency at which the transmission signal has the maximum output transitions due to the impedance variation of the antenna unit 107, the power wave is transmitted at a predetermined frequency with a high wireless power transmission rate instead of the original frequency, thereby reducing the power consumption. The writing process can be realized.

  The power wave generation unit 104 may be configured by a plurality of transmitters and a switch that switches and outputs them, a voltage-controlled transmitter whose oscillation frequency varies depending on the input voltage, or any other oscillation frequency determined by a control signal. Any configuration can be used.

  The ground communication apparatus writing apparatus 101 in the present embodiment is provided with a variable power amplification unit 106. The variable power amplification unit 106 has a function of receiving the control signal transmitted from the control unit 110 and changing the amplification factor of the write signal generated by the power wave generation unit 104 and the signal modulation unit 105. With this function, the amplification factor can be suppressed by the power wave transmissibility improved by the above-described power wave generation unit 104 and the like, and the power consumption of the writing process can be reduced.

  The matching circuit unit 109 included in the antenna unit 107 is configured to resonate in a frequency band of power determined by standards and specifications, a frequency band of a signal transmitted from the ground communication device 119, and a predetermined frequency band. And a function of switching each matching circuit connected to the antenna 108 in response to a control signal transmitted from the control unit 110.

  The means for increasing the output of the signal transmitted from the antenna unit 107 of the ground communication device writing device 101 is realized by both the power wave frequency switching function of the power wave generating unit 104 and the matching circuit switching function of the matching circuit unit 109. Or may be realized by either one of them. However, in order to reduce the power consumption of the writing process, it is necessary to pass through the variable power amplifier 106 that occupies most of the power consumption in the apparatus.

  Further, the ground communication device writing device 101 may adopt the configuration of FIG. The ground communication device writing apparatus 101 in this configuration includes a reflected wave detection unit 601 that detects a reflected wave of a signal input to the antenna unit 107 and transmits a detection signal to the control unit 110. In this configuration, the mismatch state of the antenna 108 is detected based on the amount of signal reflection from the antenna unit 107, the control signal from the control unit 110 is transmitted, and the state of each unit is switched.

  The control unit 110 is set in the operation mode setting unit 114 by the user through the user interface unit 113, and “write processing mode” for writing information to the ground communication device 109, or the ground communication device 109 installed on the travel path. The content of the control signal is determined by the “performance evaluation mode” for evaluating the performance of the control signal.

  In addition, the content of the control signal may be determined based on the interval between devices acquired by the interval measurement unit 111 and the remaining amount of the battery 118 acquired by the battery remaining amount detection unit 112. The content determination method of the control signal transmitted by the control unit 110 is realized by any one or a combination of the above.

  The operation mode setting unit 114 sets the write operation mode of the ground communication device writing apparatus 101. In the present embodiment, the operation mode setting unit 114 switches and sets two operation modes. The first mode is a write processing mode in which write information is written to the ground communication device. In the case of the write processing mode, the write processing device 101 and the ground communication device 119 are brought close to each other to perform the write processing.

  On the other hand, the second mode is a performance evaluation mode based on standards and specifications, which is mainly performed for ground communication devices installed on a traveling road. In the performance evaluation mode, the write processing device 101 and the ground communication device 119 are arranged at regular intervals based on the standard or specification, and similarly, a power wave is transmitted at a frequency or power based on the standard or specification. The characteristics of the signal returned by 120 are evaluated. Here, the signal characteristics are characteristics indicating signal reception intensity, amplitude and phase jitter, and modulation quality. The above characteristics are recorded in the memory 121 together with the identifier of the terrestrial communication device 119 and used for determination of performance deterioration due to installation environment and aging.

  In the terrestrial communication device writing apparatus according to the present embodiment, at the time of the first mode, the variable power amplification unit 106 performs control to reduce power amplification to a low power consumption at least in the second mode. Control to perform the operation.

  Next, the processing procedure of the ground communication apparatus writing apparatus 101 will be described with reference to FIG.

  First, prior to writing, when it is determined by the operation from the user interface unit 113 whether to operate in the writing processing mode or the performance evaluation mode, the mode of the operation mode setting unit 114 is set (step S401). . Next, the interval measurement unit 111 acquires the interval between the ground communication device writing device 101 and the ground communication device 119 (step S402). The process branches according to the operation mode selected in step S401 (step S403). In the case of the write process mode, the process is further branched according to the interval acquired in step S402 (S404). When it is determined in step S404 that the interval between the ground communication device writing device 101 and the ground communication device 119 is within a predetermined range set in advance, the control unit 110 stores the device stored in the memory 121 in advance. The setting at the time of close proximity is read, and the control signal is transmitted to the power wave generation unit 104, the variable power amplification unit 106 and the matching circuit unit 109 so that the frequency and power of the transmission signal and the matching circuit are switched to that state, Switching (step S405). If it is determined in step S404 that the interval between the apparatuses is not within the predetermined range set in advance, the process starts again from the first step S401.

  Alternatively, the control signal is transmitted to the power wave generation unit 104, the variable power amplification unit 106, and the matching circuit unit 109 so that the frequency and power of the transmission signal and the matching circuit are switched to a predetermined state according to the size of the interval. Then, a process of switching the state of each unit may be added, and the process may proceed to the next step S406.

  Furthermore, at this time, when the remaining battery level detection unit 112 detects a decrease in the remaining battery level 118, priority is given to securing the number of remaining writing processes, and the above switching process when the interval between both devices is not in the close state is canceled, You may return to process S401. In step S406, the signal modulation unit 105 generates the power wave 104 generated by the power wave generation unit 104 based on the write information to be written to the ground communication device selected from the information storage unit 116 by the write information selection unit 117. The power wave is subjected to ASK modulation, a write signal is generated, and transmitted from the antenna unit 107. Step S406 is repeated until the write signal divided into a plurality of blocks has been transmitted for at least one write information (step S407).

  Since the transmission of the write information to the ground communication device 119 is completed by the above operation, the write information written in the subsequent processing is confirmed. First, transmission of an unmodulated power wave is started (step S408). Next, write information transmitted from the ground communication apparatus activated by the transmitted power wave is received (step S409), and it is confirmed whether or not the received write information matches the write information transmitted in step S406 ( Step S410). If the confirmed results match, the power wave is stopped (step S413), and the identifier of the ground communication device in which the write information is written and the written information are stored as a log in the memory 121 (step S414), and the writing process is completed. After that, the process returns to step S401 in preparation for writing to the next ground communication device. If the confirmed result does not match, the number of mismatches is counted (step S411). If the number of times does not exceed the specified number, the process returns to step S406 and the writing process is performed (step S412). . If the specified number of times has been exceeded, the fact that a writing error has occurred is displayed on the user interface unit 113 and the process proceeds to step S413 where the power wave is stopped.

  When the performance evaluation mode is selected in step 403, the process is further branched according to the interval acquired in step S402 (step S415). If it is determined that the terrestrial communication device writing device 101 and the terrestrial communication device 119 are not within the interval range defined by the standard or specification, the performance evaluation process is stopped and the process returns to the first step S401. Alternatively, the process of measuring the interval may be repeated until the interval between both devices is within a predetermined range. When it is determined that the distance between the two devices is within a predetermined range, the control unit 110 switches to a matching circuit that satisfies the conditions such as the frequency, power, and resonance at the frequency defined in the standard or specification. The control signal is transmitted to the power wave generation unit 104, the variable power amplification unit 106, and the matching circuit unit 109, and the state of each unit is switched (step S416).

  Next, an unmodulated power wave is transmitted and a signal transmitted from the activated ground communication device is received, and the signal characteristic is evaluated by the control unit 110 (step S417). Finally, performance data such as received signal strength, amplitude and phase jitter, and characteristics indicating modulation quality are recorded in the memory 121 together with the identifier of the ground communication device 119 (step S418). In this process, for example, when performance data that deviates from the standard value is measured, it is desirable to provide a means for notifying the user such as displaying a warning on the user interface unit 113.

  FIG. 5 shows an example of log information contents stored in the memory 121. The stored information includes at least a terrestrial communication device identifier 501 unique to each terrestrial communication device, a history number 502 counted for each terrestrial communication device identifier 501, and a work date and time 503, and is mainly written after the writing process. The information content 504, the verification result 505 immediately after writing, the transmission power 506 of the power wave written after the performance evaluation process, the device interval 507, and the received signal strength 508 are configured. In addition, data indicating the center frequency, bit rate, and modulation quality of the received signal may be included.

  In this embodiment, the writing mode and the performance evaluation mode are exemplified as independent modes selected by the user. However, a sequential processing configuration may be adopted so that the mode is shifted to the performance evaluation mode after the writing mode is performed.

  Since the performance of the terrestrial communication device 209 may vary depending on the installation environment such as surrounding objects, the terrestrial communication device 209 after being installed on the road is evaluated in accordance with standards and specifications from the viewpoint of final performance assurance. It is desirable. In the standards and specifications, for example, transmission / reception signal frequency, transmission / reception signal power, device interval, and the like are determined. According to the configuration of the signal generation unit 104 and the antenna unit 107 of the above-described embodiment, the frequency, matching state, and signal amplification degree can be switched at the time of writing or at the time of performance evaluation by a control signal. Write processing and performance evaluation according to standards and specifications.

  Next, a second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a mechanical configuration that is an alternative to the interval measuring unit 111 illustrated in the first embodiment will be described. In addition, since the present Example assumes the structure of FIG. 1, the description which overlaps with Example 1 is abbreviate | omitted.

  FIG. 7 is an example of the ground communication device writing device 101 that mechanically detects contact between the ground communication device writing device 101 and the ground communication device 119. The ground communication device writing device 101 includes a contact detection switch 701 that detects contact in the contact surface with the ground communication device 119. A signal is transmitted to the control unit 110 when both devices are in contact with each other, or a state in which the control unit 110 reads is changed. The control unit 110 that detects the contact between both devices transmits a control signal to each unit so that the wireless power transmission rate between the devices increases when the state of each unit is in contact with both devices.

  FIG. 8 is an example of the ground communication device writing device 101 including at least one pair of folding interval setting legs 801 for providing a distance based on the standard or specification between the ground communication device writing device 101 and the ground communication device 119. . At this time, the terrestrial communication device writing apparatus includes the interval measuring unit 111 or the interval setting leg detecting unit 802 that detects that the folding interval setting leg 801 is extended. When the control unit 110 detects that the two devices are at an interval determined by the standard or specification by the interval measuring unit 111 or the interval setting leg detection unit 802, the two devices are arranged at an interval determined by the standard or specification. In addition, a control signal is transmitted to each unit so that the state of both devices becomes a state where the wireless power transmission rate between both devices increases.

  FIG. 9 shows that the antenna 108 in the antenna unit 107 of the terrestrial communication device writing apparatus 101 includes at least two antennas 901 that are close to the terrestrial communication device and a performance evaluation antenna 902 that is fixed at an interval determined by a standard or specification. It is an example of the ground communication apparatus writing apparatus 101 characterized by providing a kind. At this time, the matching circuit unit 109 has a function of switching the antenna 108 that receives the control signal from the control unit 110 and transmits the signal generated by the signal generation unit 103. According to this configuration, the writing antenna 107 and the performance evaluation antenna 108 can be switched according to the mode of the operation mode setting unit 114. Note that a plurality of antennas prepared as the write antenna 901 and the performance evaluation antenna 902 need only be antennas used for transmission to the ground communication device 109, and an antenna that receives a signal transmitted by the ground communication device 109 is at a position equal to the performance evaluation antenna 902. It is sufficient to arrange one in each.

  According to any one or combination of the configurations exemplified above, it is possible to suppress an installation interval error between the two devices, and to suppress variations in the amount of impedance that the ground communication device writing device 101 receives from the ground communication device 109. That is, it is possible to provide a terrestrial communication device writing device that can suppress an installation interval error between both devices and can stably realize writing processing with low power consumption.

  Next, a third embodiment of the present invention will be described with reference to FIGS. In the present embodiment, writing processing with low power consumption is realized even for ground communication devices having different versions. In addition, since the present Example assumes the structure of FIG. 1, the description which overlaps with Example 1 is abbreviate | omitted.

  FIG. 10 is a diagram illustrating an example of the contents of a table that stores each unit switching information used by the control unit 110 to generate a control signal. For example, a switching information table in the memory 121 that is read by the control unit 110 for transmitting a control signal for switching the state of each unit is configured as follows.

  The table includes a version identifier 1001 unique to each version of the ground communication device, a frequency setting value 1002 for setting the transmission signal frequency of the power wave generation unit 104 to an arbitrary frequency, and the power amplification factor of the variable power amplification unit 106. An amplification factor setting value 1003 for setting an arbitrary amplification factor, a matching circuit setting value 1004 for switching to an arbitrary matching circuit among a plurality of matching circuits in the matching circuit unit 109, and the like. The control unit 110 calls the contents of this table, determines the contents of the control signal, and switches the state of each part. The ground communication device writing device 101 performs a writing process in a state suitable for the version of the ground communication device 119.

  In FIG. 11, each unit state switching process procedure when the ground communication device writing device 101 performs a writing process on the ground communication device 119 in which a plurality of versions are mixed will be described. Of the writing processing procedure of the ground communication device writing apparatus 101 shown in FIG. 4, the state switching processing S405 for switching the states of the power wave generation unit 104, the variable power amplification unit 106, and the matching circuit unit 109 in the writing mode is performed as follows. To implement. When the operation mode setting unit 114 is in the writing mode and both devices are in the proximity state, the ground communication device writing device 101 starts transmission of an unmodulated power wave (step S1101). Next, write information transmitted from the ground communication device activated by the transmitted power wave is received, and a ground communication device version identifier unique to the ground communication device included in the write information is acquired (step S1102). The terrestrial communication device version identifier is compared with the identifier stored in the switching information table in the memory 121 (S1103). If there is a match, the power wave is stopped (S1106), and the terrestrial communication device version is determined. The control signal is transmitted to the power wave generation unit 104, the variable power amplification unit 106, and the matching circuit unit 109 so as to switch to the frequency and power of the transmission signal corresponding to the identifier, and the matching circuit, and the state of each unit is switched (step S1107). If the comparison result with the information table does not match, the number of mismatches is counted (step S1104). If the number does not exceed the specified number, the process returns to step S1102, and the ground communication device again. The terrestrial communication device version identifier is acquired from the above. When the specified number of times has been exceeded, the fact that a writing error has occurred is displayed on the user interface unit 113 and the process proceeds to step S1106 to stop the power wave (S1105), or error processing or the like is performed. The writing process may be terminated by making a transition.

  In addition, as a version determination method of the ground communication device, when the version of the ground communication device 119 is clear, it may be determined by a user input through the user interface unit 113. In the configuration of FIG. You may determine by the magnitude | size of the reflected wave which the reflected wave detection part in a wave output state acquires.

  According to this configuration, it is possible to realize a writing process with low power consumption by switching the state of each unit so as to correspond to a predetermined condition for different versions of ground communication devices having different impedance pull-in amounts.

  In addition, a part or all of the configuration in each of the above embodiments may be realized by using hardware such as a correction opportunity path, or may be realized by the microprocessor interpreting and executing the program. Also good. In addition, electronic information such as programs, tables, and files for realizing each configuration may be recorded in a memory, a hard disk, an SSD (Solid State Drive), an IC card, an SD card, a DVD, or other storage media. good.

DESCRIPTION OF SYMBOLS 101 Ground communication apparatus writing apparatus 102 Power drive part 103 Signal generation part 104 Power wave generation part 105 Signal modulation part 106 Variable power amplification part 107 Antenna part 108 Antenna 109 Matching circuit part 110 Control part 111 Space | interval measurement part 112 Battery remaining charge detection part 113 User interface unit 114 Operation mode setting unit 115 Write information setting interface 116 Information storage unit 117 Write information selection unit 118 Battery 119 Memory 120 Ground communication device 121 Ground communication device antenna 601 Reflected wave detection unit 701 Touch detection switch 801 Folding interval setting Leg 802 Interval setting leg detector 901 Writing antenna 902 Performance evaluation antenna

Claims (8)

A ground communication device writing device for writing write information transmitted by the ground communication device to a ground communication device installed along a traveling path,
An information storage unit for storing at least writing information to be written to the ground communication device;
A transmission unit having a function of generating a write signal based on write information;
A control unit having a function of receiving a signal input from the outside and outputting a control signal;
An antenna unit including an antenna for transmitting the write signal,
The transmission unit includes a power wave modulation unit that creates a power wave that drives the ground communication device, and
A signal generation unit that receives write information stored in the information storage unit, modulates a power wave, and generates a write signal;
A terrestrial communication device writing apparatus, comprising: a variable power amplification unit that amplifies the write signal, the amplification factor being controllable by a control signal from the control unit. The ground communication device writing device according to claim 1,
The terrestrial communication device writing apparatus, wherein the power wave generating unit has a function of changing a frequency of a power wave generated by a control signal. The ground communication device writing device according to claim 1 or 2,
The antenna unit includes a matching circuit unit including a plurality of matching circuits configured to resonate the antenna unit in a power wave frequency band and a predetermined frequency band, respectively.
The terrestrial communication device writing apparatus, wherein the matching circuit unit selects any one matching circuit by a control signal and connects to the antenna unit. The ground communication device writing device according to any one of claims 1 to 3,
The antenna unit has a plurality of antennas mechanically configured to have different intervals from the ground communication device, and selects any one antenna according to a control signal and operates as an antenna that transmits a write signal. A ground communication device writing device. The ground communication device writing device according to any one of claims 1 to 4,
An interval measuring unit for measuring an interval with the ground communication device;
The said interval measurement part transmits a measurement result to the said control part, The ground communication apparatus writing apparatus characterized by the above-mentioned. The ground communication device writing device according to any one of claims 1 to 5,
A contact detection unit for detecting contact with the ground communication device;
The contact detection unit transmits a detection result to the control unit. The ground communication device writing device according to any one of claims 1 to 6,
A battery for supplying power to each unit and a battery remaining amount detection unit for acquiring the remaining amount of the battery,
The terrestrial communication device writing device, wherein the remaining battery level detection unit transmits the acquired remaining battery level to the control unit. The ground communication device writing device according to any one of claims 1 to 7,
A reflected wave monitoring unit for measuring the amount of reflected power of the signal input to the antenna unit;
The reflected wave monitor unit transmits the result of acquiring the reflected power amount to the control unit.

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