JP6554295B2 - Observation data transmission device, observation system, and observation data transmission method - Google Patents

Description

  The present invention relates to an observation data transmission apparatus for acquiring and transmitting observation data for observing a physical change such as landslide, and an observation system including the observation data transmission apparatus.

  At present, various systems for observing landslides and the like have been devised from the viewpoint of disaster prevention. For example, the observation data collection system described in Patent Literature 1 includes a plurality of analysis devices, a plurality of relay devices, and an aggregation device.

  A plurality of analysis devices are linked to one relay device. The analysis devices linked by each relay device are different. The aggregation device is linked to a plurality of relay devices.

  The relay apparatus acquires observation data of a plurality of analysis apparatuses to which the relay apparatus is linked. The relay device collectively transmits the plurality of acquired observation data to the aggregation device.

JP, 2004-185459, A

  However, when a plurality of analysis devices transmit (upload) observation data to the relay device or the aggregation device by wireless communication, the observation data may not be uploaded depending on the health condition of the wireless communication device and the communication environment.

  In the conventional general configuration, the analysis device erases observation data when upload processing is performed, regardless of whether the upload is successful or not.

  For this reason, it is possible that partial failure occurs in the observation data in the aggregation device if uploading is partially unsuccessful, and that measurement, prediction, and the like performed using the observation data become insufficient.

  An object of the present invention is to provide an observation data transmission apparatus, an observation data transmission method, and an observation system using the same, which can more reliably upload observation data acquired by a slave arranged at an observation target position. There is to do.

  An observation data transmission apparatus according to the present invention includes a GNSS antenna, a GNSS receiver, a wireless LAN control unit, a storage unit, and a control unit. The GNSS antenna receives a GNSS signal. The GNSS receiver generates observation data from the GNSS signal received by the GNSS antenna. The wireless LAN control unit controls wireless communication. The storage unit stores observation data. The control unit controls wireless communication of the wireless LAN control unit. Furthermore, when detecting the disconnection of the wireless communication, the control unit stores the observation data in the storage unit. When detecting reconnection of wireless communication, the control unit reads and uploads observation data stored in the storage unit in the order of newly generated observation data following the latest observation data.

  In this configuration, even if observation data that can not be uploaded occurs due to a malfunction of wireless communication or the like, this observation data can be uploaded although the real-time property is reduced.

  Further, in the observation data transmitting apparatus of the present invention, when the control unit detects that there is no storage space for new observation data in the capacity of the storage unit, the control unit is new to the oldest observation data stored in the storage unit. The observation data is overwritten and stored in the storage unit.

  In this configuration, when there is observation data that can not be uploaded, the latest observation data can be continuously stored even if the storage unit runs out of space. As a result, after reconstruction of the wireless communication, it is possible to upload the newest observation data group among the observation data groups that could not be uploaded.

  In the observation data transmitting apparatus of the present invention, when the control unit detects that there is no space for storing new observation data in the capacity of the storage unit, the control unit does not store the new observation data in the storage unit.

  In this configuration, when there is observation data that can not be uploaded, observation data of a predetermined time can be stored from the time when the upload can not be performed even if the capacity of the storage unit is insufficient.

  Moreover, the observation system of this invention is equipped with the observation data transmission apparatus in any one of the above-mentioned, a repeater, a file server, and an analysis apparatus. The relay device includes a wireless LAN access point that performs wireless communication control with the wireless LAN control unit of the observation data transmission apparatus, and a router that connects the wireless LAN access point and the communication network. The file server connects to the communication network and stores the uploaded observation data. The analysis device is connected to a communication network and performs analysis using observation data. Furthermore, the analysis apparatus sets a judgment criterion of upload failure, and gives the judgment criterion to the control unit of the observation data transmission apparatus via the file network and the relay device.

  In this configuration, determination criteria for success or failure of upload in the observation data transmission apparatus can be set by remote operation. Thereby, even if the observation data transmission apparatus is separated from the analysis apparatus and disposed at a position where the observation data transmission apparatus can not be easily approached, it is possible to easily set the judgment criteria for success or failure of observation data upload. .

  In the observation system of the present invention, the analysis device sets the upload time of the observation data transmission device, and gives a determination criterion to the control unit of the observation data transmission device via the file network and the relay.

  In this configuration, the upload time of the observation data transmission device can be set by remote control. Thus, for example, the upload interval can be set according to the analysis frequency. Also, for example, when a plurality of observation data transmission devices are arranged, it is possible to set an assignment of upload time for each observation data transmission device.

  Further, in the observation system of the present invention, the analysis apparatus sets a rule for storing the observation data for which upload failed in the storage unit, and makes the judgment reference to the control unit of the observation data transmission apparatus via the file network and the relay device. give.

  In this configuration, the law of storing the observation data in the observation data transmission device in the storage unit can be remotely operated. As a result, it is possible to preferentially store and re-upload observation data required for analysis among observation data that failed to be uploaded in observation data.

  According to the present invention, observation data can be uploaded more reliably than conventional configurations and methods.

The block diagram of the observation system which concerns on embodiment of this invention Flowchart of observation data transmission method according to an embodiment of the present invention Timing chart showing the concept of an observation data transmission method according to an embodiment of the present invention A memory map that shows the process of storing and reading data in the regular memory Memory map showing storage / reading process when upload failed Memory map showing the process of reading observation data when uploading incomplete observation data multiple times Memory map showing processing of memory update when acquiring new observation data in a state where memory storage capacity is full Memory map showing memory update processing when new observation data is acquired when the memory capacity of the memory is full The timing chart which changed the upload time in the observation data transmission method concerning the embodiment of the present invention

  An observation data transmission apparatus, an observation data transmission method, and an observation system according to an embodiment of the present invention will be described with reference to the drawings. In addition, the observation system shown by this embodiment is used for a landslide detection system etc., for example. However, as long as the system analyzes a predetermined phenomenon using observation data acquired at a remote place, the configuration and method of the present embodiment can be applied.

  FIG. 1 is a block diagram of an observation system according to an embodiment of the present invention. The observation system 10 includes a child device (observation data transmission device) 20, a parent device (relay device) 30, a file server 40, an analysis device 50, and a communication network 100.

  The slave unit 20 is disposed at the observation position. When the observation position is at a plurality of positions, the child device 20 is arranged for each observation position.

  The slave unit 20 includes a control unit 21, a GNSS receiver 22, a GNSS antenna 23, a wireless LAN control unit 24, a wireless LAN antenna 25, a memory 26, and a notification unit 27. The slave unit 20 is preferably arranged in an open sky environment as much as possible.

  The control unit 21 performs overall control of the slave unit 20. The control unit 21 controls observation data storage and uploading. Specific contents of storage of observation data and control of upload in the control unit 21 will be described later.

  The GNSS receiver 22 is connected to the control unit 21. The GNSS receiver 22 generates observation data from the GNSS signal received by the GNSS antenna 23. The GNS receiver 22 outputs the generated observation data to the control unit 21.

  GNSS is an abbreviation of Global Navigation Satellite System, and includes GPS (Global Positioning System), GLONASS, Galileo and the like. A positioning signal from a QZSS (Quasi-Zenith Satellite System) satellite is also included in the GNSS signal of the present invention.

  The observation data generated by the GNSS receiver 22 is used for analysis and detection of landslide, such as carrier phase, and is data obtained from the reception result of GNSS signal (data obtained by acquisition and tracking).

  The GNSS receiver 22 also demodulates the navigation message from the GNSS signal. The GNSS receiver 22 acquires time data from the navigation message. Note that the GNSS receiver 22 may measure the slave unit 20 from the tracking result of the GNSS signal. In this case, the observation data includes a positioning result.

  The wireless LAN control unit 24 is connected to the wireless LAN antenna 25 and the control unit 21. The wireless LAN control unit 24 executes wireless communication with the wireless LAN AP 32 via the wireless LAN antenna 25 and the wireless LAN antenna 31 according to a predetermined protocol. The wireless LAN control unit 24 converts the observation data supplied from the control unit 21 into a wireless communication protocol, and transmits it from the wireless LAN antenna 25. Also, the wireless LAN control unit 24 converts the protocol of the remote setting data from the base unit 30 received by the wireless LAN antenna 25 and outputs the converted data to the control unit 21.

  The memory 26 is connected to the control unit 21. The memory 26 stores observation data. The observation data write specification and read specification for the memory 26 will be described later.

  The notification unit 27 is connected to the control unit 21. The notification unit 27 is configured by a simple display element such as an LED. The notification unit 27 is driven to a predetermined display mode by a notification signal from the control unit 21.

  The base unit 30 includes a wireless LAN antenna 31, a wireless LAN AP (access point) 32, and a router 33.

  The wireless LAN AP 32 executes wireless communication with the wireless LAN control unit 24 via the wireless LAN antenna 31 and the wireless LAN antenna 25 according to a predetermined protocol. The wireless LAN AP 32 converts the protocol of the remote setting data acquired via the router 33 and transmits it from the wireless LAN antenna 31. Further, the wireless LAN AP 32 converts the observation data from the slave unit 20 received by the wireless LAN antenna 31 into a protocol and outputs the converted data to the router 33.

  The router 33 connects the wireless LAN AP 32 to the network 100. That is, the router 33 performs protocol conversion between the wireless communication network between the parent device 30 and the child device 20 and the network 100. The router 33 transmits observation data output from the wireless LAN AP 32 to the file server 40. The router 33 transmits remote setting data from the analysis device 50 connected via the network 100 to the wireless LAN AP 32.

  The file server 40 stores observation data transmitted from the parent device 30. Further, the file server 40 transmits observation data to the analysis device 50 in response to a read request from the analysis device 50.

  The analysis device 50 uses the observation data read from the file server 40 to generate detection data for the observation target. For example, if the observation system 10 is a landslide detection system, position change and velocity of each observation position are acquired from observation data to detect a landslide. The analysis device 50 transmits remote setting data to the parent device 30 and the child device 20. The remote setting data is set by the operator using the operation input unit provided in the analysis device 50. Also, the remote setting data may be set automatically by the analysis device 50 based on the analysis results so far.

  In the observation system having such a configuration, the child device (observation data transmission device) 20 uploads observation data to the file server 40 by the following method.

  FIG. 2 is a flowchart of the observation data transmission method according to the embodiment of the present invention. FIG. 3 is a timing chart showing the concept of the observation data transmission method according to the embodiment of the present invention.

  The control part 21 of the subunit | mobile_unit 20 acquires the observation data Dob for every observation time Tob (S101). The observation time Tob is the same for all the slave units. For example, as shown in FIG. 3, when three slaves A, B and C are arranged, these plural slaves A, B and C are synchronized. The observation times TobA, TobB, and TobC are determined based on the synchronized times. For synchronization of a plurality of handsets A, B, C, time data of the GNSS signal is used. Thereby, the plurality of slave units A, B, and C can be synchronized without using the reference signal generator. The observation time Tob (Tob A, Tob B, Tob C) is set at an interval of 1 second, for example.

  The control unit 21 temporarily stores the acquired observation data Dob in the memory 26 in the order of acquisition (S102). The control unit 21 stores the observation data Dob together with time data (observation time).

  The control unit 21 measures time, and detects that it is not the upload time Tup (S103: No), continuously acquires observation data Dob and temporarily stores it.

  When the control unit 21 detects that it is the upload time Tup (S103: Yes), the control unit 21 uploads the observation data Dob.

  The upload time Tup is set for each slave unit. As shown in FIG. 3, the upload time TupA of the slave unit A, the upload time TupB of the slave unit B, and the upload time TupC of the slave unit C are different. And each child machine A, B, C performs upload of observation data within the time allocated by upload time TupA, TupB, TupC.

  Specifically, in the example of FIG. 3, the time determined by the period Tcy for uploading observation data from all the slaves A, B and C is divided by the number of slaves. The time obtained by this division is assigned to each of the slave units A, B, and C. And the time which becomes the starting point of each time is set to each upload time TupA, TupB, TupC.

  By performing such processing, it is possible to prevent a plurality of slaves from simultaneously performing wireless communication, and therefore, it is possible to suppress a decrease in data transfer rate (bit rate) of wireless communication between the slaves and the master. Also, the observation data uploaded from the plurality of slaves to the master 30 do not interfere with each other. Therefore, observation data can be reliably uploaded from each slave unit to the file server 40 via the master unit 30.

  The control unit 21 wakes up the wireless LAN control unit 24 and establishes data communication between the wireless LAN control unit 24 and the wireless LAN AP 32. Further, the control unit 21 detects whether or not the observation data Dob can be uploaded to the file server 40 via the network 100. The control unit 21 provides a threshold for the communication establishment determination process. The control unit 21 determines that uploading is not possible if communication establishment can not be established by performing the communication establishment process a threshold number of times. Further, the control unit 21 measures the time after transmitting the data for establishing communication, and determines that uploading is not possible if the response data can not be received by the threshold time.

  If the upload is not possible (S104: NO), the control unit 21 continues to store the observation data (not completed observation data) which can not be uploaded which is being stored in the memory 26 (S110).

  If the upload is possible (S104: YES), the control unit 21 detects whether there is observation data (incomplete observation data) which could not be uploaded to the file server 40 at the previous upload time.

  When the control unit 21 detects that there is no incomplete observation data (S105: YES), the control unit 21 uploads upload data Dup including a plurality of observation data Dob stored up to the current upload time Tup (S106). The upload data Dup is data in which a plurality of observation data Dob are arranged in order from the newest observation data Dob to the latest time. For example, in the example of FIG. 3, the slave unit A uploads upload data DupA composed of a plurality of observation data DobA stored up to the current upload time TupA. The slave unit B uploads upload data DupB composed of a plurality of observation data DobB stored by the upload time TupB this time. The slave C uploads upload data DupC composed of a plurality of observation data DobC stored up to the current upload time TupC.

  When detecting that the upload is completed, the control unit 21 deletes the observation data Dob temporarily stored in the memory 26 (S107).

  When detecting that there is uncompleted observation data (S105: NO), the control unit 21 uploads the latest observation data (S108). The control unit 21 uploads incomplete observation data following the latest observation data (S109). The control unit 21 deletes the observation data Dob temporarily stored in the memory 26 that has been uploaded (S107).

  As described above, by using the configuration of the present embodiment, even when a period in which the observation data Dob can not be uploaded occurs, the observation data Dob can be uploaded in a period in which the upload is possible. Thereby, the loss of the observation data Dob stored in the file server 40 can be suppressed. Therefore, the analysis result by the analysis device 50 can be made highly accurate.

  Furthermore, in the present embodiment, the latest observation data is preferentially uploaded. Thereby, the loss of observation data close to the current state can be suppressed, and the analysis result for the current state can be made highly accurate.

  The threshold value for the above-mentioned communication establishment process can be set in the control unit 21 from the analysis device 40 via the network 100 and the parent device 30. Thereby, the operator can set a desired threshold value. Further, the operator can set the threshold value without directly operating the handset 20. Thereby, even if the subunit | mobile_unit 20 is arrange | positioned in the position which cannot reach | attain easily, a threshold value can be set. For example, in the landslide detection system, the handset 20 may be disposed at a position where a person cannot easily reach, such as a position where the sky is open in a mountain. However, by using this configuration, a threshold value can be set even for the slave units arranged at such positions. The setting for the slave unit can be set from the analysis device 40 without being limited to the threshold value.

  Next, a method of storing observation data Dob in a specific memory 26 and a method of reading the observation data Dob will be described. FIG. 4 is a memory map showing the process of storing and reading in the memory at steady state. FIG. 5 is a memory map showing storage and read processing when uploading is not possible.

  The control unit 21 stores the observation data Dob in the memory 26 in the order of acquisition. For example, as illustrated in FIG. 4, when the control unit 21 acquires the observation data Dob (t11) at the observation time TobA11, the control unit 21 stores the observation data Dob (t11) in the memory 26. When acquiring the observation data Dob (t12) at the observation time TobA12, the control unit 21 stores the observation data Dob (t12) at an address subsequent to the storage address of the observation data Dob (t11) in the memory 26. The control unit 21 sequentially repeats this processing, and when the upload time TupA1 is reached, a plurality of observation data from the observation data Dob (t1m) to the observation data Dob (t11) at the observation time TobA1m which is the upload time TupA1 is observed Upload in the order of new

  Next, a case where uploading can not be performed at the previous uploading time will be described using FIG. The control unit 21 stores the observation data Dob (t1m) from the observation data Dob (t11) as it is, when the upload can not be performed at the upload time TobA1. When acquiring the observation data Dob (t21) at the observation time TobA21, the controller 21 stores the observation data Dob (t21) in the memory 26. At this time, the control unit 21 stores the observation data Dob (t21) at an address subsequent to the address where the observation data Dob (t1m) is stored from the observation data Dob (t11). When acquiring the observation data Dob (t22) at the observation time TobA22, the control unit 21 stores the observation data Dob (t22) at an address subsequent to the storage address of the observation data Dob (t21) in the memory 26. The control unit 21 sequentially repeats this process, and when the upload time TupA2 is reached, a plurality of observation data from the observation data Dob (t2m) to the observation data Dob (t21) at the observation time TobA2m which is the upload time TupA2 is observed Upload in the order of new Further, the control unit 21 uploads a plurality of observation data from the observation data Dob (t1m) to the observation data Dob (t11) that have not been uploaded in order of the latest observation time.

  At this time, there is a case where all the incomplete observation data can not be uploaded by one upload. In this case, the control unit 21 executes the following process. FIG. 6 is a memory map showing the process of reading observation data when uploading incomplete observation data a plurality of times.

  When the upload time TupA2 is reached, the control unit 21 uploads a plurality of observation data from the observation data Dob (t2m) to the observation data Dob (t21) at the observation time TobA2m, which is the upload time TupA2, in the order of new observation time. Further, the control unit 21 includes a plurality of observation data from the observation data Dob (t1m) to which the upload is incomplete to the observation data Dob (t1k) so as to be within the upload period determined from the upload time set for each slave unit. , In order of the new observation time. The control unit 21 deletes the observation data Dob (t21) from the observation data Dob (t2m) that has been uploaded and the observation data Dob (t1k) from the observation data Dob (t1m). In this process, the observation data Dob (t1j) from the observation data Dob (t1j) for which uploading is incomplete has not been uploaded yet. The control unit 21 stores the observation data Dob (t11) from the observation data Dob (t1j) whose upload is incomplete in the memory 26 as it is.

  When the upload time TupA3 is reached, the control unit 21 uploads a plurality of observation data from the observation data Dob (t3m) to the observation data Dob (t31) at the observation time TobA3m which is the upload time TupA3 in the order of new observation time. Further, the control unit 21 uploads a plurality of observation data from the observation data Dob (t1j) to the observation data Dob (t11) that have not been uploaded in order from the latest observation time so as to be within the upload period.

  Thus, even if all observation data can not be uploaded by one re-upload, all observation data can be uploaded by multiple re-uploads.

  Also, the capacity of the memory 26 is limited. Therefore, the storage capacity for the observation data Dob is also determined. When newly storing observation data Dob exceeding the storage capacity, the control unit 21 of the present embodiment executes the processing shown in either FIG. 7 or FIG. FIGS. 7 and 8 are memory maps showing processing of storage update when new observation data is acquired in a state where the storage capacity of the memory is full. FIG. 7 shows a case where new observation data is overwritten on old observation data, and FIG. 8 shows a case where new observation data is not stored.

(I) When overwriting old observation data with new observation data As shown at observation times TobAnh and TobAni in FIG. 7, when the new observation data can be stored, the control unit 21 stores the new observation data as it is. Make it memorize in 26. For example, as shown in FIG. 7, at the observation time TobAnh, there is a capacity for storing the observation data Dob (tnh), so the control unit 21 stores the observation data Dob (tnh) in a free area of the memory 26. . When the observation time TobAnh is the upload time, the control unit 21 uploads a plurality of observation data from the observation data Dob (tnh) in order from the latest observation time.

  Similarly, at the observation time TobAni, since there is a capacity for storing the observation data Dob (tni), the control unit 21 stores the observation data Dob (tni) in the free space of the memory 26. When the observation time TobAni is the upload time, the control unit 21 uploads a plurality of observation data from the observation data Dob (tni) in the order of the new observation time.

  At the observation time TobAnj, as shown in FIG. 7, when the control unit 21 acquires new observation data Dob (tnj), it detects the capacity shortage of the memory 26 and the oldest observation time stored in the memory 26 is the oldest. The new observation data Dob (tnj) is overwritten and stored in the area of the observation data Dob (t11). When the observation time TobAnj is the upload time, the control unit 21 uploads a plurality of observation data in the order of the observation time from the observation data Dob (tnj).

  At the observation time TobAnk, as shown in FIG. 7, when acquiring the new observation data Dob (tnk), the control unit 21 detects a shortage of the capacity of the memory 26 and the oldest observation time stored in the memory 26. New observation data Dob (tnk) is overwritten and stored in the observation data Dob (t12) area. When the observation time TobAnk is the upload time, the control unit 21 uploads a plurality of observation data from the observation data Dob (tnk) in the order of the new observation time.

  With such a configuration, when observation data Dob exceeding the storage capacity of the memory 26 is acquired, new observation data at the observation time can be reliably uploaded.

(Ii) When old observation data is not overwritten with new observation data As shown at observation times TobAnh and TobAni in FIG. 8, when the new observation data can be stored, the control unit 21 stores the new observation data as it is. 26 (same processing as in FIG. 7 is executed).

  At the observation time TobAnj, as shown in FIG. 8, when the control unit 21 acquires new observation data Dob (tnj), the controller 21 detects a shortage of the capacity of the memory 26 and transfers it to the memory 26 of the new observation data Dob (tnj). Discard your memory. When the observation time TobAnj is the upload time, the control unit 21 uploads a plurality of observation data from the observation data Dob (tni) stored in the memory 26 in the order of the new observation time.

  At the observation time TobAnk, as shown in FIG. 8, when acquiring new observation data Dob (tnk), the control unit 21 detects the capacity shortage of the memory 26 and sends the memory 26 of the new observation data Dob (tnk). Discard your memory. When the observation time TobAnk is the upload time, the control unit 21 uploads a plurality of observation data from the observation data Dob (tni) stored in the memory 26 in order from the latest observation time.

  With such a configuration, even when observation data Dob exceeding the storage capacity of the memory 26 is acquired, observation data of a specific period can be reliably uploaded. The period to be uploaded can be set in the control unit 21 by operation input by the analysis device 40.

  The upload cycle Tcy described above and the upload times TupA, TupB, and TupC of the slaves A, B, and C can be set as appropriate. FIG. 9 is a timing chart in which the upload time is changed in the observation data transmission method according to the embodiment of the present invention.

  As shown in FIG. 9, the length of time allotted to uploading of each slave unit determined by the upload times TupA, TupB, TupC can be made different. The setting of this time can be set in the control unit 21 by operation input by the analysis device 40.

  By using this configuration, the upload time length can be set in accordance with the wireless communication status of each slave unit.

  For example, a slave having a good wireless communication environment can perform wireless communication with a high bit rate. Therefore, for such a slave unit, the upload time length can be set short.

  On the other hand, there may be a case where a slave having poor wireless communication environment can only perform wireless communication with a low bit rate. Therefore, for such a slave unit, the upload time length can be set long.

  Thereby, according to the radio | wireless communication environment of a some subunit | mobile_unit, observation data can be uploaded more reliably.

  Note that the upload time length assignment can be automatically set in the analysis device 40 based on the past wireless communication environment conditions, for example, the number of times wireless communication is disconnected, the signal strength of wireless communication, and the like. The analysis device 40 can also adjust the transmission interval. For example, when extending the power life of the slave unit, the transmission interval is set to be long. The slave unit is set to turn off the power except for the low power state or the timekeeping function during a period in which transmission is not performed. This power supply setting can also be set by the analysis device 40. By performing such setting, it is possible to extend the life of the power supply of the slave unit.

  Further, in the above description, although the analysis data generated by the slave unit is obtained from the reception result of the GNSS signal, the following data may be included. By providing the handset with a rain gauge, it is possible to include rain in the analysis data. By providing the slave unit with an acceleration sensor, the analysis data can include acceleration. By providing the slave unit with an inclinometer, the amount of inclination can be included in the analysis data. Furthermore, the results of climate observation, the amount of soil water, the amount of groundwater level, etc. can be included in the analysis data by providing these measuring devices in the slave unit.

10: Observation system 20: Slave unit (observation data transmitter)
21: control unit 22: GNSS receiver 23: GNSS antenna 24: wireless LAN control unit 25: wireless LAN antenna 26: memory 27: notification unit 30: master unit (relay unit)
40: file server 50: analysis device 100: communication network

Claims (8)

A GNSS antenna for receiving GNSS signals,
A GNSS receiver that generates observation data from the GNSS signal received by the GNSS antenna;
A wireless LAN control unit that controls wireless communication;
A storage unit for storing the observation data;
And a control unit which controls the upload of the observation data by previous cinchona line communication,
The control unit
Upon detecting that the wireless communication is not established, the observation data that has not been uploaded is stored in the storage unit,
Upon detecting re- establishment of the wireless communication, following the latest observation data, the observation data stored in the storage unit is read and uploaded in the newly generated order ,
Observation data that could not be uploaded at the time of the re-establishment, the observation data that could not be uploaded at the time of the re-establishment following the latest observation data after the re-establishment at the time of the establishment of the next wireless communication. Read out and upload in the order of newly generated
Observation data transmitter. The observation data transmission apparatus according to claim 1, wherein
The control unit
When it is detected that there is no storage space for new observation data in the capacity of the storage unit,
Storing the new observation data in the storage unit by overwriting the oldest observation data stored in the storage unit;
Observation data transmitter. The observation data transmission apparatus according to claim 1, wherein
The control unit
When it is detected that there is no storage space for new observation data in the capacity of the storage unit,
The new observation data is not stored in the storage unit.
Observation data transmitter. The observation data transmission device according to any one of claims 1 to 3,
A notification unit for performing notification regarding the upload of the observation data to the outside;
Observation data transmitter. The observation data transmission device according to any one of claims 1 to 4,
A wireless LAN access point that performs wireless communication control with the wireless LAN control unit of the observation data transmission device, and a relay that includes a router that connects the wireless LAN access point and a communication network;
A file server connected to the communication network and storing the uploaded observation data;
An analysis device connected to the communication network and performing analysis using the observation data;
The analysis device
Set a criterion for upload failure due to disconnection of the wireless communication,
Via the communication network and the repeater, the determination criterion is given to the control unit of the observation data transmission device;
Observation system. The observation system according to claim 5, wherein
The analysis device
Set the upload time of the observation data transmitter,
Via the communication network and the repeater, the determination criterion is given to the control unit of the observation data transmission device;
Observation system. The observation system according to claim 5 or 6, wherein
The analysis device
Set a law to store the observation data in the storage unit,
Via the communication network and the repeater, the determination criterion is given to the control unit of the observation data transmission device;
Observation system. A GNSS signal receiving step of receiving a GNSS signal with a GNSS antenna;
A GNSS reception step of generating observation data from the GNSS signal received by the GNSS antenna;
A storage step of storing the observation data;
Controlling wireless communication including upload of the observation data,
The control step
Upon detecting the non-establishment of the wireless communication, the observation data that has not been uploaded is stored,
Upon detection of the re-establishment of the radio communication, following the latest observation data, the observation data is stored, reading the newly generated order upload,
The observation data that could not be uploaded at the time of the re-establishment, the observation data that could not be uploaded at the time of the re-establishment following the latest observation data after the re-establishment at the time of the establishment of the wireless communication after the next time, Read and upload newly generated order,
Observation data transmission method.

Images