JP5535979B2 - Telemetering device, telemetering system, data processing method and program for telemetering device - Google Patents

Description

  The present invention relates to a telemetering device, a telemetering system, a data processing method for the telemetering device, and a data processing program for the telemetering device that can be suitably used for, for example, metering the usage of electric power, gas, and water.

  In the telemetering system, as shown as the first related technology related to the present invention, the telemetering device installed in various places is used to measure electricity, gas, and water usage as highly as possible. Is collected (see, for example, Patent Document 1).

  In such a telemetering system, radio is often used as a communication line because of the ease of installing a telemetering device. In addition, when the transmission speed of a line used is relatively slow as in PHS (Personal Handyphone System), it is necessary to reduce the amount of data transmitted by each telemetering device and free up a radio band.

  In the telemetering system, if the cost per telemetering device increases, the entire system leads to a huge cost increase. Therefore, the telemetering system requires not only high reliability but also consideration from the viewpoint of cost reduction. Therefore, it is necessary to construct a system that can perform simple and accurate data transfer.

FIG. 18 shows an outline of a telemetering system according to a second related technique related to the present invention. The telemetering system 100 includes a plurality of telemetering devices 101 _{11 to} 101 ₄₄ arranged in a tree shape. Telemetering device 101 ₁₁ stand on top of the tree structure of which is connected to one lower layer of the two telemetering device 101 _21, 101 _22. The telemetering device 101 ₂₁ is further connected to two telemetering devices 101 ₃₁ and 101 ₃₂ which are one layer below. Telemetering device 101 ₂₂ is connected similarly to the two telemetering device 101 _33, 101 ₃₄ of one lower layer. Telemetering device 101 ₃₁ is further connected to two telemetering device 101 _41, 101 ₄₂ of one lower layer. Similarly telemetering device 101 ₃₂ is connected to two telemetering device 101 _43, 101 ₄₄ of one lower layer.

In such telemetering system 100, to collect metering data from the remaining telemetering device 101 _{21-101 44} telemetering device 101 ₁₁ by the transfer of weighing data in a bucket brigade manner. For example metered data sent out from each of the two telemetering device 101 _41, 101 _42, is collected in a telemetering apparatus 101 ₃₁ One upper to these. Weighing data collected telemetering apparatus 101 collected metering data and other ₃₁ telemetering device 101 ₃₂ are collected further to one layer of the telemetering device 101 _21. Weighing data collected telemetering device 101 ₂₁ metering data and other telemetering device 101 ₂₂ collected in is collected telemetering device 101 ₁₁ of the top layer. These weighing data collected by the wireless section is sent from the telemetering device 101 ₁₁ to the base station 102 is sent from here to the center server 103 by wired communication.

By the way, in the semiconductor memories in the telemetering devices 101 _{11 to} 101 ₄₄ , for example, temporary data destruction caused by cosmic rays may occur and a software error may occur. In order to detect that such garbled data has occurred in the measurement data, it is generally effective to check the transmitted data using a CRC (Cyclic Redundancy Check).

JP 2010-213164 (paragraph 0017, FIG. 1)

  However, in order to inspect whether or not an error has occurred, it is necessary to add a redundant signal to the weighing data to be inspected. When such a redundant signal is added when the transmission speed of the wireless line is low, the increase in the occupied time of the band becomes a ratio that cannot be ignored. As a result, there arises a problem that the total number of telemetering devices 101 is limited when collecting weighing data by the bucket relay method.

  Of course, it is possible to transmit the measurement data without applying a redundant signal such as CRC. However, in this case, even if the above-described error occurs in any of the telemetering devices 101 on the weighing data transfer path, the telemetering system 100 itself cannot detect this error. As a result, erroneous weighing data is collected in the center server 103, which hinders system reliability.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a telemetering device, a telemetering system, and a data processing method for a telemetering device that can detect data errors that occur in the middle of collecting data measured by the bucket relay method Another object is to provide a data processing program for a telemetering device.

  Another object of the present invention is to provide data of a telemetering device, a telemetering system, and a telemetering device that enable recovery when an error occurs in the middle of collecting data measured by the bucket relay method. A processing method and a data processing program for a telemetering device are provided.

  In the present invention, (a) measurement means for repeating a predetermined measurement at a predetermined time interval, and (b) measurement data obtained as a result of measurement by the measurement means along a transmission path specified in advance. When there is a communication terminal to be transmitted next on this transmission path when transmitting to a specific destination, the measurement data of the communication terminal as its own device and the subordinate communication terminal are collected into the communication terminal as one packet. A terminal-side packet signal transmission means for transmitting the packet signal directly to the above-mentioned specific destination when there is no communication terminal to be transmitted next and transmitted, and (c) transmission of this terminal-side packet signal transmission means Measurement data storage means for at least temporarily storing the measurement data included in the packet signal to be transmitted, and (d) a communication terminal for transmitting next on the transmission path described above A terminal-side packet signal receiving means for receiving the packet signal sent out by the communication terminal, if present, and (e) the next-transmitted communication contained in the packet signal received by the terminal-side packet signal receiving means Measurement data other than the measurement data measured by the terminal and the corresponding measurement data stored in the above-mentioned measurement data storage means, and (f) measurement data that did not match by this comparison means. An error determining means for determining that an error has occurred in the measured data, and (g) an error notifying means for notifying an error of the measured data determined by the error determining means to the specific destination. It has.

  In the present invention, (a) a measurement unit that repeats a predetermined measurement at a predetermined time interval, and measurement data as a result of measurement by the measurement unit are specified along a predetermined transmission path. When there is a communication terminal to be transmitted next on this transmission path when transmitting to the destination of the packet, the measurement data of the communication terminal as its own device and the subordinate communication terminal are collected into the communication terminal as one packet signal. When there is no communication terminal to be transmitted next, this packet signal is transmitted directly to the specific destination as described above, and the packet signal transmitted by this terminal side packet signal transmission means When there is a measurement data storage means for storing the above-mentioned measurement data included at least temporarily after transmission, and a communication terminal to be transmitted next on the transmission path described above The terminal side packet signal receiving means for receiving the packet signal transmitted by the communication terminal and the measurement data measured by the communication terminal to be transmitted next included in the packet signal received by the terminal side packet signal receiving means. An error occurs in the measurement data when there is measurement data that does not match with the comparison means that compares the other measurement data with the corresponding measurement data stored in the measurement data storage means. (B) a plurality of telemetry devices including error determination means for determining that the error has occurred, and error notification means for notifying the specific destination of an error in the measurement data determined by the error determination means; Packet signal transmitted by the terminal-side packet signal transmitting means of the uppermost telemetering device of the mobile devices. Collecting side packet signal receiving means, measurement data extracting means for extracting the measurement data transmitted from each telemetering device from the packet signal received by the collecting side packet signal receiving means, and extraction by the measurement data extracting means Measurement data storage means for storing measurement data as data for each telemetering device, and re-transmission of corresponding data among the measurement data stored in the measurement data storage means upon receipt of the notification from the error notification means. The telemetering system includes a measurement data collection device including a request for retransmission request.

  Further, in the present invention, (b) a measurement step in which a predetermined measurement is repeated at a predetermined time interval, and (b) measurement data obtained as a result each time measurement is performed in this measurement step are specified in advance. When transmitting to a specific destination along the transmission path, if there is a communication terminal to be transmitted next on the transmission path, the measurement data of the communication terminal as its own device and the subordinate communication terminal are included in the communication terminal. Are transmitted as a single packet signal, and when there is no communication terminal to be transmitted next, a packet signal transmission step on the terminal side for directly transmitting this packet signal to the above-mentioned specific destination, and (c) this terminal side A measurement data storage step for at least temporarily storing the measurement data included in the packet signal transmitted in the packet signal transmission step after transmission; A terminal-side packet signal receiving step for receiving the packet signal transmitted by the communication terminal when there is a communication terminal to be transmitted next on the transmission path; and (e) receiving at the terminal-side packet signal receiving step. A comparison step of comparing the measurement data other than the measurement data measured by the communication terminal to be transmitted next included in the packet signal and the corresponding measurement data stored in the measurement data storage step; An error determination step for determining that an error has occurred in the measurement data when there is measurement data that cannot be matched in the comparison step; and (g) the error of the measurement data determined in the error determination step The data processing method of the telemetering device includes an error notification step of notifying the destination.

  Furthermore, in the present invention, as a data processing program of the telemetering device, (b) a measurement process in which a predetermined measurement is repeated at a predetermined time interval, and (b) a measurement is performed by this measurement process. When the resulting measurement data is transmitted to a specific destination along a pre-specified transmission path each time a communication terminal to be transmitted next exists on this transmission path, A terminal that transmits measurement data of a communication terminal as a device and subordinate communication terminals together as one packet signal, and directly transmits the packet signal to the specific destination described above when there is no communication terminal to be transmitted next Side packet signal transmission processing, and (c) a small amount of the measurement data contained in the packet signal transmitted in this terminal side packet signal transmission processing after transmission. And (d) terminal-side packet signal reception for receiving the packet signal transmitted by the communication terminal when there is a communication terminal to be transmitted next on the transmission path. And (e) measurement data other than the measurement data measured by the communication terminal to be transmitted next included in the packet signal received in the terminal-side packet signal reception process, and stored in the measurement data storage process. A comparison process for comparing the corresponding measurement data, and (f) an error determination process for determining that an error has occurred in the measurement data when there is measurement data that did not match in the comparison process, and (g) An error notification process for notifying an error of measurement data determined in the error determination process to the specific destination is executed.

  As described above, according to the present invention, when measurement data is sent to a specific destination in a bucket relay manner and collected, temporary data destruction caused by cosmic rays in a memory mounted on the telemetering device is prevented. The normality of the measurement data can be ensured without specifying or providing a redundant signal for error detection. Therefore, instead of using the redundant signal, a signal band such as a radio band can be used to transfer the measurement data to the maximum extent. In addition, it is possible to ensure the normality of the measurement data without reducing the number of telemetering devices constituting the system.

It is a claim corresponding | compatible figure of the telemetering apparatus of this invention. It is a claim corresponding figure of the telemetering system of this invention. It is a claim corresponding | compatible figure of the data processing method of the telemetering apparatus of this invention. It is a claim corresponding | compatible figure of the data processing program of the telemetering apparatus of this invention. 1 is a system configuration diagram illustrating an example of a configuration of a telemetering system according to an embodiment of the present invention. It is the block diagram which showed the principal part of the structure about an example of the telemetering apparatus used by this Embodiment. It is the block diagram which showed the principal part of the circuit structure of the center server used by this Embodiment. It is explanatory drawing showing the structure of the measurement data allocated to the telemetering apparatus of this Embodiment. It is explanatory drawing showing as an example the mode of the assembly of the packet which the upper one telemetering apparatus which received the packet containing measurement data from the two telemetering apparatuses located in the lowest layer of this Embodiment sends out. It is an explanatory view showing the contents stored in the memory of the telemetering device that generated the new meter output packet P ₂₁ of the present embodiment. It is explanatory drawing showing an example of the mode of transmission of the meter output packet P in the four telemetering apparatuses of this Embodiment in time series. It is explanatory drawing showing the mode of the comparison process of the measurement data by the data comparison circuit of the telemetering apparatus of this Embodiment. It is a flowchart showing the mode of the transmission process of the measurement data in the telemetering apparatus of this Embodiment. It is a flowchart showing the mode of the discrimination | determination process of the generation | occurrence | production of the error of the measurement data sent out by the telemetering apparatus of this Embodiment. It is a flowchart showing the mode of the setting process of an error flag in the production | generation process of the measuring device output packet which the telemetering apparatus of this Embodiment sends. It is a flowchart showing the mode of the packet reception process by the center server of this Embodiment. It is a flowchart showing the reception process of the resending request packet by the telemetering apparatus of this Embodiment. It is a system configuration | structure figure showing the outline | summary of the telemetering system by the 2nd related technique relevant to this invention.

  FIG. 1 is a diagram corresponding to claims of the telemetering device of the present invention. The telemetering device 10 of the present invention comprises a measuring means 11, a terminal side packet signal transmitting means 12, a measurement data storing means 13, a terminal side packet signal receiving means 14, a comparing means 15, an error determining means 16, Error notification means 17 is provided. Here, the measuring means 11 repeats a predetermined measurement at a predetermined time interval. The terminal-side packet signal transmission unit 12 transmits a measurement data as a result of measurement by the measurement unit 11 to a specific destination along a transmission path specified in advance, and then transmits a communication terminal on the transmission path. Is transmitted to the communication terminal as a single packet signal by collecting the measurement data of the communication terminal as its own device and the subordinate communication terminal, and this packet signal is transmitted when there is no communication terminal to be transmitted next. Directly to the specific destination described above. The measurement data storage unit 13 stores at least temporarily the measurement data included in the packet signal transmitted by the terminal-side packet signal transmission unit 12 after transmission. The terminal-side packet signal receiving means 14 receives the packet signal transmitted from the communication terminal when there is a communication terminal to be transmitted next on the transmission path. The comparison unit 15 includes measurement data other than the measurement data measured by the communication terminal to be transmitted next included in the packet signal received by the terminal-side packet signal reception unit 14 and the correspondence stored in the measurement data storage unit 13. Compare measured data. The error discriminating means 16 discriminates that an error has occurred in the measurement data when there is measurement data that cannot be matched by the comparing means 15. The error notification unit 17 notifies the specific destination of the measurement data error determined by the error determination unit 16.

  FIG. 2 is a diagram corresponding to the claims of the telemetering system of the present invention. The telemetering system 20 of the present invention includes a plurality of telemetering devices 21 and a measurement data collection device 22. Here, the telemetering device 21 includes a measuring unit 21a, a terminal side packet signal transmitting unit 21b, a measurement data storing unit 21c, a terminal side packet signal receiving unit 21d, a comparing unit 21e, an error determining unit 21f, Error notification means 21g is provided. The measuring means 21a repeats a predetermined measurement at a predetermined time interval. The terminal-side packet signal transmission unit 21b transmits the measurement data as a result of measurement by the measurement unit 21a to a specific destination along a transmission path specified in advance, and then transmits a communication terminal on the transmission path. Is transmitted to the communication terminal as a single packet signal by collecting the measurement data of the communication terminal as its own device and the subordinate communication terminal, and this packet signal is transmitted when there is no communication terminal to be transmitted next. Directly to the specific destination described above. The measurement data storage unit 21c stores at least temporarily the measurement data included in the packet signal transmitted by the terminal-side packet signal transmission unit 21b after transmission. The terminal-side packet signal receiving means 21d receives the packet signal transmitted from the communication terminal when there is a communication terminal to be transmitted next on the transmission path. The comparison means 21e includes measurement data other than the measurement data measured by the communication terminal to be transmitted next included in the packet signal received by the terminal-side packet signal reception means 21d and the correspondence stored in the measurement data storage means 21c. Compare measured data. The error notification unit 21g includes an error determination unit 21f that determines that an error has occurred in the measurement data when there is measurement data that cannot be matched by the comparison unit 21e, and an error in the measurement data determined by the error determination unit 21f. To the above-mentioned specific destination. The measurement data collection device 22 includes collection-side packet signal reception means 22a, measurement data extraction means 22b, measurement data storage means 22c, and retransmission request means 22d. The collecting-side packet signal receiving unit 22a receives a packet signal transmitted from the terminal-side packet signal transmitting unit 21b of the uppermost telemetering device among the plurality of telemetering devices 21. The measurement data extraction unit 22b extracts the measurement data transmitted from each telemetering device 21 from the packet signal received by the collection-side packet signal reception unit 22a. The measurement data storage unit 22c stores the measurement data extracted by the measurement data extraction unit 22b as data for each telemetering device 21. The retransmission request unit 22d receives the notification from the error notification unit 21g and requests retransmission of the corresponding data among the measurement data stored in the measurement data storage unit 22c.

  FIG. 3 is a diagram corresponding to the claims of the data processing method of the telemetering apparatus according to the present invention. The data processing method 30 of the telemetering apparatus according to the present invention includes a measurement step 31, a terminal side packet signal transmission step 32, a measurement data storage step 33, a terminal side packet signal reception step 34, a comparison step 35, and an error determination. Step 36 and error notification step 37 are provided. Here, in the measurement step 31, a predetermined measurement is repeated at a predetermined time interval. In the terminal side packet signal transmission step 32, each time measurement is performed in the measurement step 31, the measurement data obtained as a result is transmitted along the transmission path specified in advance to a specific destination. When there is a communication terminal to be transmitted to the terminal, the measurement data of the communication terminal as its own device and the subordinate communication terminal are collectively transmitted to the communication terminal as one packet signal, and there is no communication terminal to be transmitted next The packet signal is transmitted directly to the specific destination described above. In the measurement data storage step 33, the above-described measurement data included in the packet signal transmitted in the terminal side packet signal transmission step 32 is stored at least temporarily after transmission. In the terminal side packet signal reception step 34, when there is a communication terminal to be transmitted next on the transmission path, the packet signal transmitted by the communication terminal is received. In the comparison step 35, the measurement data other than the measurement data measured by the communication terminal to be transmitted next included in the packet signal received in the terminal-side packet signal reception step 34 and the correspondence stored in the measurement data storage step 33 Compare measured data. In the error determination step 36, when there is measurement data that cannot be matched in the comparison step 35, it is determined that an error has occurred in the measurement data. In the error notification step 37, the measurement data error determined in the error determination step 36 is notified to the specific destination.

  FIG. 4 shows a claim correspondence diagram of the data processing program of the telemetering apparatus of the present invention. The data processing program 40 of the telemetering apparatus according to the present invention includes a measurement process 41, a terminal side packet signal transmission process 42, a measurement data storage process 43, a terminal side packet signal reception process 44, and a comparison process 45. The error determination process 46 and the error notification process 47 are executed. Here, in the measurement process 41, a predetermined measurement is repeated at a predetermined time interval. In the terminal-side packet signal transmission process 42, each time measurement is performed in the measurement process 41, the measurement data obtained as a result is transmitted along a transmission path specified in advance to a specific destination. When there is a communication terminal to be transmitted to the terminal, the measurement data of the communication terminal as its own device and the subordinate communication terminal are collectively transmitted to the communication terminal as one packet signal, and there is no communication terminal to be transmitted next The packet signal is transmitted directly to the specific destination described above. In the measurement data storage process 43, the measurement data included in the packet signal transmitted in the terminal-side packet signal transmission process 42 is stored at least temporarily after transmission. In the terminal-side packet signal reception process 44, when there is a communication terminal to be transmitted next on the transmission path, the packet signal transmitted by the communication terminal is received. In the comparison process 45, the measurement data other than the measurement data measured by the communication terminal to be transmitted next included in the packet signal received in the terminal-side packet signal reception process 44 and the correspondence stored in the measurement data storage process 43 Compare measured data. In the error determination process 46, when there is measurement data that cannot be matched in the comparison process 45, it is determined that an error has occurred in the measurement data. In the error notification process 47, the measurement data error determined in the error determination process 46 is notified to the specific destination.

  <Embodiment of the Invention>

  Next, a first embodiment of the present invention will be described.

FIG. 5 shows an example of the configuration of the telemetering system according to the embodiment of the present invention. Telemetering system 200 of the present embodiment includes a plurality of telemetering device 201 _{11-201 34} arranged in a tree. These telemetering device 201 _{11-201 34} is one in which are arranged one by one in order to measure the amount of electricity as an example in each house, for the sake of explanation, to limit the number to a small number It shows.

Telemetering device 201 ₁₁ stand on top of the tree structure is connected to the two telemetry one lower ring device 201 _21, 201 _22. Telemetering device 201 ₂₁ is further connected to two telemetering device 201 _31, 201 ₃₂ of one lower layer. Other telemetering device 201 ₂₂ is likewise connected to one lower layer of the two telemetering device 201 _33, 201 _34.

In such a telemetering system 200, each telemetering device 201 positioned in the upper layer receives measurement data from each of the subordinate telemetering devices 201 positioned in the lower layer. Further, the upper-layer telemetering device 201 that has received the weighing data adds its own weighing data to the received weighing data, and further transmits it to the upper-layer device. For example, if receiving the weighing data apparatus is a telemetering device 201 _21, the destination of the metering data becomes Telemetering device 201 ₁₁ of the top layer. Further, when receiving the weighing data apparatus is a telemetering device 201 ₁₁ of the top layer, the destination of the metering data becomes the center server 203 via the base station 202. The above is the same as the telemetering system 100 according to the second related technique shown in FIG.

In the case of the present embodiment, each telemetering device 201 that has received the weighing data not only adds its own weighing data and transmits it to the next higher layer device, but also to the lower layer side of its own device. These measurement data are transmitted by radio to each of the subordinate telemetering devices 201 located there. As a result, the other telemetering device 201 _{21-201 34} except telemetering device 201 ₁₁ of the top layer, while the device itself is transmitting metered data to one layer of the telemetering device 201, the upper layer From the telemetering device 201, the weighing data already transmitted by the own device is received.

FIG. 6 shows a main part of the configuration of an example of a telemetering device used in the present embodiment. The telemetering device 201 ₂₁ other telemetering device 201 _11, 201 _{22 to 201 34} configuration of has a telemetering device 201 ₂₁ essentially identical. Therefore, illustration and description of the information on configuration of a telemetering device 201 _11, 201 _{22 to 201 34} are omitted. However, telemetering device 201 ₁₁ of the top layer is not subject to feedback metric data from the upper layer of the device than this when sending metering data for which are located in the uppermost layer. Therefore, telemetering device 201 ₁₁ there is a difference that does not require a circuit portion for processing the weighing data to be fed back.

The telemetering device 201 ₂₁ has a control unit 223 including a CPU 221 and a control program storage unit 222. CPU221 is by executing a control program stored in the control program storage unit 222, and controls each unit of the telemetering device 201 ₂₁ described below. Further, at least a part of each of these units can be realized in software by the CPU 221 executing a control program.

The wireless communication circuit 225 is a circuit that transmits and receives measurement data wirelessly. The memory 226 temporarily stores measurement data. The measurement data acquisition circuit 227 is a circuit that acquires measurement data from the measurement device 228. The meter 228 is a device that measures an object to be charged by the telemetering system 200 like a power meter. Data extraction circuit 229 is a circuit for extracting the metric data telemetering device 201 ₂₁ has already sent from sent come metered data from the lower layer of telemetering device 201 _31, 201 _32. The data comparison circuit 230 is a circuit that compares the past measurement data of the own device extracted by the data extraction circuit 229 with the corresponding measurement data of the own device stored in the memory 226. The error data retransmission processing circuit 231 is a circuit for retransmitting the weighing data requested to be retransmitted from the center server 203 (FIG. 5) via the wireless communication circuit 225.

  FIG. 7 shows the main part of the circuit configuration of the center server used in this embodiment. The center server 203 has a control unit 243 including a CPU 241 and a control program storage unit 242. The CPU 241 controls each unit of the center server 203 described below by executing a control program stored in the control program storage unit 242. Further, at least a part of each of these units can be realized in software by the CPU 221 executing a control program. This will be described with reference to FIG.

Communication control circuit 244 communicates through a plurality of telemetering device 201 _{11-201 34} and the base station 202 via the base station 202. Weighing data extraction circuit 245 extracts the weighing data telemetering device 201 _{11-201 34} from the metering output packet received from the telemetering device 201 ₁₁ stand on top of the tree structure. The error flag detection circuit 246 detects an error flag if it exists in the extracted meter output packet. When the error flag detection circuit 246 detects an error flag, the retransmission instruction circuit 247 instructs the corresponding telemetering device 201 to retransmit the weighing data. Weighing data storage unit 248 stores the weighing data telemetering device 201 _{11-201 34} extracted from the received meter output packet.

  In the telemetering system 200 configured as described above, the meter 228, which is a meter for measuring the amount of electricity, gas, water, etc. installed in each house, automatically performs meter reading, and a bucket relay is used by PHS communication. Data is transferred to the center server 203 in the form.

  FIG. 8 shows the configuration of the weighing data assigned to each telemetering device. This will be described with reference to FIGS.

Weighing data 251, and the measuring instrument information 252 as the identification information that is uniquely assigned to each telemetering device 201 _{11-201 34,} the weighing value 253 of meter 228 acquired in metrics data acquisition circuit 227, the error flag 254 Consists of The error flag 254 has a value indicating a flag “0” when the data comparison circuit 230 has not detected an error, but is set to “1” when an error is detected. However, while the weighing device 228 has value data as a weighing result to be sent at present, the state of the flag indicated by the error flag 254 indicates the result for the weighing value sent in the “past”.

  The upper-layer telemetering device 201 includes the measurement data 251 including the measurement data 251 of its own device in the same manner as the normal measurement data 251. Transfer to the telemetering device 201.

  FIG. 9 shows an example of the assembly of packets sent out by the one upper-layer telemetering device that has received packets containing measurement data from the two telemetering devices located in the lowermost layer. Here, the case where the weighing data representing the amount of electricity used is transferred will be described as an example with reference to FIGS.

Telemetering device 201 ₂₁ shown in FIG. 5, from one of the telemetering device 201 ₃₁ of the lowermost subordinate receives the meter output packet P ₃₁ as shown in FIG. 9 (A), the other telemetering device 201 _The weighing instrument output packet P ₃₂ is received from ₃₂ . These weighing instrument output packets P ₃₁ and P ₃₂ are both composed of a header 261, weighing data 262 and a footer 263. Weighing data 262 of the metering output packet P ₃₁ is the metering data metrics data acquisition circuit 227 immediately before the timing of sending the meter output packet P ₃₁ is generated based on the amount of electrical "D _31", weighing weighing data vessel output packet P ₃₂ 262 is a metric that metering data acquisition circuit 227 immediately before the timing of sending the meter output packet P ₃₂ is generated based on the amount of electrical "D _32".

Data extraction circuit telemetering device 201 ₂₁ 229 retrieves metrics data 262 from these meter output packet P _31, P ₃₂ received. These are the weighing data “D ₃₁ ” and the weighing data “D ₃₂ ” shown in FIG. The telemetering device 201 ₂₁ generates the weighing data “D ₂₁ ” of its own device by the weighing data acquisition circuit 227 of its own device. Therefore, as shown in FIG. 9B, the telemetering device 201 ₂₁ generates weighing data 262 obtained by connecting these three types of weighing data “D ₃₁ ”, “D ₃₂ ”, and “D ₂₁ ”. the metering output packet P ₂₁ incorporated between the header 261 and footer 263 generated as shown in FIG. 9 (C).

FIG. 10 shows the contents stored in the memory of the telemetering device that generated this new meter output packet P ₂₁ . This will be described with reference to FIGS.

Memory 226 telemetering device 201 _21, for example SRAM is constituted by (Static Random Access Memory), power consumption when holding the data is very small. Each time the telemetering device 201 ₂₁ sends out the weighing instrument output packet P ₂₁ using the wireless communication circuit 225, the three types of weighing data “D ₃₁ ”, “D ₃₂ ”, “D ₂₁ ” are sequentially stored in the memory 226. It comes to store.

On the other hand, telemetering device 201 ₂₁ transmits in accordance with the PIAFS (Personal Handyphone System Internet Access Forum Standard) standard to the meter output packet P ₂₁ against the upper layer of the telemetering device 201 _11. The transmission of the meter output packet P ₂₁ is performed wirelessly. Accordingly, the meter output packet P ₂₁ sent can be lower telemetering device 201 _31, 201 ₃₂ intercept.

  FIG. 11 shows an example of how the meter output packet P is transmitted in time series in the four telemetering devices described above. The downward direction in the figure shows the passage of time. This will be described with reference to FIGS.

Lowermost telemetering device 201 ₃₁ and 201 _32, the transmission timing determined in advance respectively come, the metering data D _31, D ₃₂ was weighed by the own device as a meter output packet P _31, P _32, one It sends against upper telemetering device 201 _21. In Figure 11, one of the telemetering device 201 ₃₁ to discharge a metered output packet P ₃₁ at time t _11, followed other telemetering device 201 ₃₂ at time t ₁₂ and is output to the meter output packet P ₃₂ However, there is no need for a temporal relationship between them.

Telemetering device 201 _21, was added when each receiving the metered output packets P _31, P ₃₂ from two telemetering device 201 ₃₁ and 201 ₃₂ under a D ₂₁ of its own device to a subsequent time t ₁₃ Weighing sends the vessel output packet P _21. The meter output packet P _21, in addition to being received by the telemetering device 201 ₁₁ which is the original destination, is received from the telemetering device 201 ₂₁ even one layer of telemetering device 201 ₃₁ and 201 ₃₂ (intercept) The From the time t ₁₁ to the time t ₂₁ to transmit period T _S has passed as the transmission interval of each telemetering device 201 _{11-201 34,} telemetering device 201 ₃₁ lowermost meter metering data D ₃₁ as the next cycle As an output packet P ₃₁ , the packet is sent to the telemetry device 201 ₂₁ that is one layer above. The same applies hereinafter.

FIG. 12 shows a state of measurement data comparison processing by the data comparison circuit of the telemetering device when communication as described above is performed. Here, a description will be given of comparison processing in one of telemetering device 201 ₃₁ of the lowermost shown in Figure 5. This will be described with reference to FIGS. 5, 6, 8 and 9.

FIG. 12A shows a measuring instrument output packet P ₂₁ transmitted from the telemetering device 201 ₂₁ shown in FIG. 9C. The weighing data 262 sandwiched between the header 261 and the footer 263 has a form in which three weighing data “D ₃₁ ”, “D ₃₂ ”, and “D ₂₁ ” are connected.

FIG. 12B specifically shows the configuration of the weighing data 262 (251). Weighing data 262 meter showing meter information 252 ₃₁ indicating the one of the telemetering device 201 ₃₁ lowermost, weighing 253 _31, a set of error flags 254 _31, the lowermost layer of the other telemetering device 201 ₃₂ It is composed of a set of information 252 ₃₂ , weighing value 253 ₃₂ , error flag 254 ₃₂ , weighing instrument information 252 ₂₁ indicating the telemetering device 201 ₂₁ in the upper layer, weighing value 253 ₂₁ , and error flag 254 ₂₁ . .

When measuring output packet P ₂₁ shown from the telemetering device 201 ₂₁ in FIG. 12 (A) is sent to the telemetering device 201 _11, telemetering device 201 ₃₁ also receives the meter output packet P ₂₁ (interception ) Data extraction circuit telemetering device 201 ₃₁ 229, from the received (intercepted) by the weighing data 262, as shown in FIG. 12 (C), taken out weighing data 251 ₃₁ showing a telemetering device 201 ₃₁ is a self-device .

The memory 226 of the telemetering device 201 _31, metering data D ₃₁ in the meter output packet P ₃₁ that telemetering device 201 ₃₁ threw as shown in FIG. 12 (E) are stored. This will be able to see the contents of the memory of the telemetering device 201 ₂₁ shown in FIG. 10. That is, the weighing instrument output packet P ₂₁ transmitted from the telemetering device 201 ₂₁ is obtained by connecting three types of weighing data “D ₃₁ ”, “D ₃₂ ”, and “D ₂₁ ” as shown in FIG. 9B. Since it is the weighing data 262, these three types of weighing data “D ₃₁ ”, “D ₃₂ ”, and “D ₂₁ ” are stored in the memory 226. In contrast, only one type of weighing data “D ₃₁ ” is stored in the memory 226 of the telemetering device 201 ₃₁ .

Telemetering device 201 ₃₁ data comparison circuit 230, as shown in FIG. 12 (D), transmission cycle weighing data 251 ₃₁ currently received (intercepted) (FIG. 12 (C)), is stored in the memory 226 T _S at the timing predated by comparing the weight data "D _31" when sent from a telemetering device 201 ₃₁ (step S301). Then, when some difference is detected in metric 253 ₃₁ therebetween (step S302), an error in the contents weighing data sent via the telemetering device 201 ₃₁ "D _31" is in the subsequent route as an error has occurred The flag 254 ₃₁ is set to “1”.

In the telemetering system 200 shown in FIG. 5, which is intended to tree telemetering device 201 _{11-201 34} configuration is greatly simplified only convenience in three levels of description. The actual number of telemetering hierarchy from the system 200 at the lowest layer of the telemetering device 201 to a telemetering device 201 ₁₁ of connected top layer to the base station 202 metric data is transferred in some cases much greater. In such a case, the measurement data is sent to the upper layer telemetering device 201 while being sequentially accumulated through more layers than described with reference to FIG. In this way eventually weighing data of all telemetering device 201 _{11-201 34} is sent to the center server 203 via a telemetering device 201 ₁₁ of the top layer, stored in the weight data storage unit 248 shown in FIG. 7 Is done.

In the weighing data transfer process as described above, the PHS radio band is used to the maximum for transferring the weighing data. For this reason, in the present embodiment, although the CRC output packet P ₂₁ shown as an example in FIG. 12A is added with a CRC for data inspection for the entire radio packet frame in accordance with the PIAFS standard, configuration to individual data, such as weighing 253 ₃₁ shown in (B) is for adding the CRC to evaluate the validity of metering data not taken.

In already the telemetering As described apparatus 201 _{11-201 34,} software errors in the metrics data generated temporary data corruption in a semiconductor memory may occur. Therefore, when such a software error occurs in some of the telemetering devices 201, in this embodiment, the transmitted weighing data is fed back to each telemetering device 201 to detect this, If any difference is detected as described with reference to FIG. 12 by comparing whether or not these data contents have been changed, it is assumed that an error has occurred in the measurement data sent by the device in the past. .

Moreover not the telemetering device 201 _{11-201 34} is sending a special packet for detecting errors in how this error detection. The radio wave transmitted to the upper layer telemetering device 201 can be intercepted by the lower layer telemetering device 201. By this interception, each telemetering device 201 can determine whether the weighing data transmitted in the past of the device itself has caused a software error. That is, the reception of data by the lower layer telemetering device 201 uses the same radio wave as the transmission of data to the upper layer telemetering device 201. For this reason, there is no increase in the load on the radio band in the mechanism itself for detecting the software error in the measurement data.

  The telemetering device 201 that has detected an error by the data comparison circuit 230 sets a flag indicating that the error has been detected at the next measurement data transmission opportunity, and transmits it to the upper-layer telemetering device together with the current measurement data. Thus, if the error flag of the weighing instrument output packet finally sent to the center server 203 is set to “1”, it can be detected that there is an error in the weighing data, and any telemetering device can be detected. Whether there is an abnormality in the weighing data from 201 can also be determined. The retransmission instruction circuit 247 illustrated in FIG. 7 is a circuit that instructs the corresponding telemetering device 201 to perform retransmission. The error data retransmission processing circuit 231 illustrated in FIG. This is a circuit for resending the measured data.

As described above, according to the telemetering system 200 of the present embodiment, it is possible to improve the reliability of measurement data collection without reducing the number of telemetering devices constituting the system without imposing a load on the radio band. Further, the center server 203 by the retransmission processing of the measuring output packet can be done to repair the weighing data of each telemetering device 201 _{11-201 34} for storing the weighing data storage unit 248 shown in FIG.

Therefore, the main part of the control performed in the telemetering system 200 described above will be described. These control executes a control program CPU221 of the control unit 223 as represented by a telemetering device 201 ₂₁ shown in FIG. 6, if telemetering device 201 is stored in the control program storage unit 222 This is realized. Further, in the case of the center server 203, it is realized by the CPU 221 in the control unit 243 executing the control program stored in the control program storage unit 242.

FIG. 13 shows a state of transmission processing of the measurement data in the telemetering device. This will be described with reference to FIGS. 5, 6, and 9 to 11. Here take telemetering device 201 ₃₁ Example.

Telemetering device 201 ₃₁ sets the acquisition timing of the weighing data from the weighing device 228 by the transmission period T _S shown in FIG. 11. When this measurement data acquisition timing arrives (step S321: Y), the measurement data acquisition circuit 227 acquires the amount of power used as the latest measurement data from the measurement device 228 (step S322). Then, it is checked whether the received data from the telemetering device 201 under exists for telemetering device 201 ₃₁ (step S323).

Telemetering device 201 ₃₁ As is apparent from FIG. 5 is an apparatus located in the lowermost layer, located the origin of the bucket brigade. Therefore, there is no subordinate telemetering device 201 and no data is received from the subordinate telemetering device 201 (step S323: N). Accordingly, the telemetering device 201 ₃₁ generates the weighing instrument output packet P ₃₁ incorporating only the weighing data acquired by the weighing data acquisition circuit 227 of its own device (step S324). Then, one kind of measurement data “D ₃₁ ” (FIG. 9A) at this time is stored in the memory 226 (see FIG. 6) of the own apparatus (step S325). Thereafter, the wireless communication circuit 225 of the telemetering device 201 ₃₁ sends the meter output packet P ₃₁ wirelessly (step S326), the process returns to step S321 (RETURN).

As telemetering device 201 not located in the lowermost layer in the above process, for example, consider a telemetering device 201 _21. If telemetering device 201 _21, telemetering device 201 ₃₁ and telemetering device 201 ₃₂ exists as telemetering device 201 under. These telemetering device 201 _31, 201 ₃₂ are collected metrics data both at the transmission period T _S. Therefore, in the case of a telemetering device 201 ₂₁ processing in step S323 becomes the "received data present under" (Y).

In this example, telemetering device 201 ₂₁ receives the meter output packet P ₃₁ from one telemetering device 201 _31, receives the meter output packet P ₃₂ from the other telemetering device 201 _32. Where the data extraction circuit 229 telemetering device 201 ₂₁ extracts the weighing data from the weighing output packet P ₃₂ "D _31" (FIG. 9 (A)), Similarly meter output of the other telemetering device 201 ₃₂ The measurement data “D ₃₂ ” (FIG. 9A) is extracted from the packet P ₃₁ . The weighing data “D ₃₁ ” and “D ₃₂ ” and the weighing data “D ₂₁ ” of the device itself are combined (FIG. 9B), and the weighing instrument output packet P ₂₁ (FIG. 9C) is obtained. Generate (step S327).

In the case of this example, the telemetering device 201 ₂₁ stores three types of weighing data “D ₃₁ ”, “D ₃₂ ”, and “D ₂₁ ” in the memory 226 shown in FIG. 10 (step S325). Then, the wireless communication circuit 225 wirelessly transmits the weighing instrument output packet P ₂₁ storing these three types of measurement data “D ₃₁ ”, “D ₃₂ ”, and “D ₂₁ ” (step S 326), and the process is performed. Return to S321 (return).

FIG. 14 shows a state of determination processing for occurrence of an error in the weighing data transmitted from the telemetering device. This will be described with reference to FIGS. Here take telemetering device 201 ₃₁ Example.

Wireless communication circuit 225 of the telemetering device 201 ₃₁ stands by one layer of the telemetering device 201 ₂₁ to receive the metered output packet P ₂₁ was sent to a telemetering device 201 ₁₁ (Step S351) . When the weighing instrument output packet P ₂₁ is received (Y), the data extraction circuit 229 extracts the weighing data 251 ₃₁ (weighing data “D ₃₁ ”) of the telemetering device 201 ₃₁ included therein (step S 352). FIG. 12 (C)). Then, as shown in FIG. 12E, the own measurement data “D ₃₁ ” stored in the memory 226 as the measurement data of the previous cycle is read (step S353).

The data comparison circuit 230 is transmitted from the telemetering device 201 ₃₁ when the measurement data 251 ₃₁ (FIG. 12C) currently received (intercepted) and the transmission cycle T _S stored in the memory 226 are traced back. The current weighing data “D ₃₁ ” is compared (step S354). As a result, if there is a difference between the two weighing data (step S355: Y), the flag storage area (not shown) or the error flag value of a specific field is set to “1” indicating that an error has been detected. (Step S356), the process ends (END). The error flag can also be set by marking a location of data in which an error has occurred in the weighing data stored in the memory 226 with a specific pattern instead of setting the value “1” in this way. If there is no difference between the two weighing data in step S355 (N), the series of processing is terminated (end) while the error flag remains “0”.

FIG. 15 shows how the error flag is set in the process of generating the meter output packet sent by the telemetering device. This process is a part of the generation process of the measuring instrument output packet P ₃₁ described in step S324 and step S327 of FIG. This will be described with reference to FIGS. Here take telemetering device 201 ₃₁ Example.

In telemetering device 201 _31, it checks the value of the error flag of the flag storage area described above prior to delivery of the meter output packet P ₃₁ (step S371). As a result, when the value of the error flag is “1” (Y), the value of the error flag 254 ₃₁ of the own apparatus shown in FIG. 12B is set to “1” (step S372), and an error occurs. The flag setting process ends (END).

If the value of the error flag of the flag storage area is "0" (step S371: N), the value of the error flag 254 ₃₁ of the apparatus shown in FIG. 12 (B) is set to "0" (step S373), the error flag setting process is ended (END).

  FIG. 16 shows a state of packet reception processing by the center server. This will be described with reference to FIGS. 5, 7, 9 and 12.

The communication control circuit 244 of the center server 203 waits for reception of the measuring instrument output packet via the base station 202 (step S391). Upon receiving the metered output packet (Y), measuring the data extraction circuit 245 extracts the weighing data 262 of each telemetering device 201 _{11-201 34} (step S392). This is the same as the extraction principle shown in FIGS. 9 (A) and 9 (B). Extraction of these weighing data 262 is stored in the weight data storage unit 248 as data for each telemetering device 201 _{11-201 34} (step S393).

  In the process of step S293, if the weighing instrument output packet received in step S391 is a packet for retransmission of weighing data, or part of the weighing data 262 of the normal weighing instrument output packet includes the weighing data for retransmission. May be. In such a case, the re-established measurement data 262 is overwritten with the error-measured measurement data stored in the measurement data storage unit 248, and data reconstruction is performed.

  When the process of step S393 is completed, the error flag detection circuit 246 of the center server 203 checks whether the error flag 254 included in the processed weighing data 262 is set to “1” (step S394). When the error flag 254 is set to “1” (Y), this means that the telemetering device 201 that has set the error flag 254 has detected an error in the weighing data. Therefore, the retransmission instruction circuit 247 instructs the communication control circuit 244 to send the retransmission request packet to the telemetering apparatus 201 (step S395), and ends the series of processing (end).

  On the other hand, when the error flag detection circuit 246 does not detect that the error flag 254 is set to “1” (step S394: N), it is not necessary to send a retransmission request packet. Therefore, in this case, a series of processing ends without sending a retransmission request packet (end).

FIG. 17 shows a process for receiving a retransmission request packet by the telemetering device. This will be described with reference to FIGS. Here take telemetering device 201 ₂₁ Example.

When the retransmission request packet is sent from the center server 203 (step S401: Y), the telemetering device 201 ₂₁ receives the error data retransmission processing circuit 231 in the capacity of the weighing data 262 of the weighing instrument output packet sent by the own device. It is checked whether there is a fixed amount of space and it is possible to add re-measurement data here (step S402). In such a case there is no free (N), telemetering device 201 ₂₁ can not contain metering data for retransmission to the meter output packet normally transmitted.

Therefore, in this case, the error data retransmission processing circuit 231 generates a retransmission-only weighing instrument output packet incorporating the weighing data instructed to be retransmitted (step S403). Then, the wireless communication circuit 225 is used to transmit this retransmission-only measuring instrument output packet (step S404), and the processing is ended (END). Meter output packet to be transmitted this time, one may be sent to the center server 203 the upper layer of the telemetering device 201 ₁₁ via the base station 202 receives the base station 202 if possible reception environment It may be one that is sent directly to.

On the other hand, if the weighing data for retransmission can be added to the weighing instrument output packet that is normally transmitted (step S402: Y), the weighing data to be retransmitted by the own device is retransmitted when the next weighing instrument output packet is generated. The setting is made so that it is added as minutes (step S405), and the processing is ended (END). In this case, the telemetering device 201 ₂₁ next normal transmission to the meter output telemetering device 201 ₁₁ upper layer of the transmitting one adds the retransmission of the metering data of the own apparatus when the packet is to send this packet Become.

  As described above, according to the present embodiment, in the transmission path configured in the bucket relay system, data redundancy is configured by the front and rear telemetering devices, thereby minimizing an increase in the load on the radio line. Suppress and easily detect soft errors. The fact that the load on the radio line can be suppressed has an advantage that more telemetering devices can be arranged.

  Further, according to the present embodiment, it is possible to identify the telemetering device and data in which an error has occurred by the error flag added to the weighing data, and it is possible to easily repair the soft error data.

  Furthermore, according to this embodiment, when an error occurs in the transmission of weighing data, if there is a capacity in the weighing instrument output packet, the weighing data for retransmission is added to the weighing instrument output packet that is normally transmitted. I made it. For this reason, even when retransmission is performed, an increase in the load on the wireless line can be suppressed.

  In the embodiment, a telemetering system that transmits measurement data to be charged by meter reading of power, gas, water, etc. has been described. However, the present invention is not limited to this. For example, the present invention can be applied to other telemetering devices such as collecting weather data such as temperature and humidity.

  In the embodiments, the telemetering system using PHS has been described. However, the present invention can be similarly applied to other wireless communication protocols and wired communication in which lower layer devices can intercept communication contents. The effect of can be obtained.

  Some or all of the embodiments described above are described as in the following supplementary notes, but are not limited to the following descriptions.

(Appendix 1)
Measurement means for repeating a predetermined measurement at a predetermined time interval;
When the measurement data obtained as a result of measurement by the measuring means is transmitted to a specific destination along a transmission path specified in advance, if there is a communication terminal to be transmitted next on the transmission path, the communication terminal The measurement data of the communication terminal as its own device and subordinate communication terminals are collectively transmitted as one packet signal, and when there is no communication terminal to be transmitted next, this packet signal is directly transmitted to the specific destination. A terminal-side packet signal transmission means;
Measurement data storage means for at least temporarily storing the measurement data included in the packet signal transmitted by the terminal-side packet signal transmission means, and
Terminal side packet signal receiving means for receiving the packet signal transmitted by the communication terminal when there is a communication terminal to be transmitted next on the transmission path;
The measurement data other than the measurement data measured by the next communication terminal to be transmitted included in the packet signal received by the terminal-side packet signal reception means is compared with the corresponding measurement data stored in the measurement data storage means. A comparison means;
An error discriminating means for discriminating that an error has occurred in the measurement data when there is measurement data that could not be matched by the comparing means;
An error notifying means for notifying an error of measurement data determined by the error determining means to the specific destination.

(Appendix 2)
The telemetering device according to appendix 1, wherein the error notifying means incorporates in the packet signal transmitted by the terminal-side packet signal transmission means that an error in measurement data has occurred and transmits it together with other measurement data.

(Appendix 3)
The terminal-side packet signal transmitting means is means for transmitting wirelessly, and the terminal-side packet signal receiving means is means for intercepting the radio transmitted by the terminal-side packet signal transmitting means of the next communication terminal to be transmitted. The telemetering device according to appendix 1, characterized by:

(Appendix 4)
The terminal side packet signal transmitting means is means for transmitting by wire, and the terminal side packet signal receiving means is means for receiving the packet signal transmitted by the terminal side packet signal transmitting means of the communication terminal to be transmitted next by wire. The telemetering device according to appendix 1, wherein

(Appendix 5)
As a result of the notification by the error notification means, when there is a request for retransmission of measurement data of the own apparatus from the specific destination, a retransmission request receiving means for receiving the request, and when the retransmission request receiving means receives a retransmission request 2. The telemetering device according to claim 1, further comprising a packet signal retransmission unit configured to retransmit the measurement data stored in the measurement data storage unit and requested to be retransmitted into a packet signal.

(Appendix 6)
6. The telemetering device according to appendix 5, wherein the packet signal retransmitting means is a means for transmitting the packet data transmitted by the terminal side packet signal transmitting means by incorporating the measurement data requested to be retransmitted.

(Appendix 7)
6. The telemetering device according to appendix 5, wherein the packet signal retransmission means is means for transmitting measurement data requested to be retransmitted separately from the packet signal transmitted by the terminal-side packet signal transmission means.

(Appendix 8)
The telemetering device according to appendix 1, wherein the terminal-side packet signal transmission means is means for transmitting the packet signal in accordance with a PIAFS (Personal Handyphone System Internet Access Forum Standard) standard.

(Appendix 9)
A measurement unit that repeats a predetermined measurement at a predetermined time interval, and measurement data obtained as a result of measurement by the measurement unit are transmitted to a specific destination along a predetermined transmission path. When there is a communication terminal to be transmitted next on the transmission path, the measurement data of the communication terminal as its own device and the subordinate communication terminal are collectively transmitted to the communication terminal as one packet signal, and then transmitted. When there is no terminal, the terminal-side packet signal transmitting means for directly transmitting this packet signal to the specific destination, and at least after transmitting the measurement data contained in the packet signal transmitted by the terminal-side packet signal transmitting means Measurement data storage means for temporarily storing and the packet transmitted by the communication terminal when there is a communication terminal to be transmitted next on the transmission path. Terminal-side packet signal receiving means for receiving a signal, measurement data other than the measurement data measured by the communication terminal to be transmitted next included in the packet signal received by the terminal-side packet signal receiving means, and the measurement data storage means A comparison means for comparing the corresponding measurement data stored in the memory, an error determination means for determining that an error has occurred in the measurement data when there is measurement data that cannot be matched by the comparison means, and this error determination A plurality of telemetering devices comprising error notification means for notifying the specific destination of errors in measurement data determined by the means;
Of the plurality of telemetering devices, a collecting-side packet signal receiving unit that receives a packet signal transmitted from the terminal-side packet signal transmitting unit of the uppermost telemetering device, and a packet received by the collecting-side packet signal receiving unit Measurement data extraction means for extracting measurement data transmitted from each telemetering device from the signal, measurement data storage means for storing the measurement data extracted by the measurement data extraction means as data for each telemetering device, and the error notification means And a measurement data collection device comprising: a retransmission request unit that requests retransmission of the corresponding data among the measurement data stored in the measurement data storage unit. system.

(Appendix 10)
At least a part of the plurality of telemetering devices includes: a retransmission request receiving unit that receives a request for retransmission of measurement data of the own device from the retransmission request unit of the measurement data collection device; When the means receives a retransmission request, it comprises packet signal retransmission means for incorporating the measurement data requested for retransmission stored in the measurement data storage means into a packet signal and retransmitting it to the measurement data collection device. The telemetering system according to appendix 9.

(Appendix 11)
A measurement step of repeating a predetermined measurement at a predetermined time interval;
When the measurement data obtained each time measurement is performed in this measurement step is transmitted to a specific destination along a transmission path specified in advance, there is a communication terminal to be transmitted next on this transmission path The communication terminal transmits the measurement data of the communication terminal as its own device and the subordinate communication terminal together as one packet signal, and when there is no communication terminal to be transmitted next, this packet signal is transmitted as the specific signal. A terminal-side packet signal transmission step for transmitting directly to a destination;
A measurement data storing step for storing at least temporarily after transmitting the measurement data included in the packet signal transmitted in the terminal-side packet signal transmission step;
A terminal-side packet signal receiving step for receiving the packet signal transmitted by the communication terminal when there is a communication terminal to be transmitted next on the transmission path;
The measurement data other than the measurement data measured by the next communication terminal transmitted in the packet signal received in the terminal-side packet signal reception step is compared with the corresponding measurement data stored in the measurement data storage step. A comparison step;
An error determination step for determining that an error has occurred in the measurement data when there is measurement data that could not be matched in this comparison step;
A data processing method for a telemetering device, comprising: an error notification step of notifying an error of measurement data determined in the error determination step to the specific destination.

(Appendix 12)
As a result of the notification in the error notification step, when there is a request for retransmission of the measurement data of the own apparatus from the specific destination, a retransmission request receiving step for receiving the request, and a retransmission request received in the retransmission request receiving step 12. A data processing method for a telemetering apparatus according to claim 11, further comprising a packet signal retransmission step for retransmitting the measurement data stored in the measurement data storage step and requested to be retransmitted into a packet signal. .

(Appendix 13)
On the computer,
A measurement process for repeating a predetermined measurement at a predetermined time interval;
When the measurement data obtained as a result of each measurement in this measurement process is transmitted to a specific destination along a transmission path specified in advance, there is a communication terminal to be transmitted next on this transmission path The communication terminal transmits the measurement data of the communication terminal as its own device and the subordinate communication terminal together as one packet signal, and when there is no communication terminal to be transmitted next, this packet signal is transmitted as the specific signal. A terminal-side packet signal transmission process for direct transmission to a destination;
A measurement data storage process that at least temporarily stores the measurement data included in the packet signal transmitted in the terminal-side packet signal transmission process;
A terminal-side packet signal reception process for receiving the packet signal transmitted by the communication terminal when there is a communication terminal to be transmitted next on the transmission path;
The measurement data other than the measurement data measured by the communication terminal to be transmitted next included in the packet signal received in the terminal-side packet signal reception process is compared with the corresponding measurement data stored in the measurement data storage process. Comparison process and
An error determination process for determining that an error has occurred in the measurement data when there is measurement data that cannot be matched in the comparison process;
A data processing program for a telemetering device, which executes an error notification process for notifying an error of measurement data determined in the error determination process to the specific destination.

(Appendix 14)
As a result of the notification by the error notification process, when there is a request for retransmission of the measurement data of the own device from the specific destination, a retransmission request reception process for receiving the request, and when a retransmission request is received in the retransmission request reception process 14. The telemetering apparatus according to claim 13, further causing the computer to execute a packet signal retransmission process in which the measurement data stored in the measurement data storage process and requested to be retransmitted is incorporated into a packet signal and retransmitted. Data processing program.

10, 21, 201 Telemetering device 11, 21a Measurement means 12, 21b Terminal side packet signal transmission means 13, 21c Measurement data storage means 14, 21d Terminal side packet signal reception means 15, 21e Comparison means 16, 21f Error determination means 17 , 21g Error notification means 20, 200 Telemetering system 22 Measurement data collection device 22a Collection side packet signal reception means 22b Measurement data extraction means 22c Measurement data storage means 22d Retransmission request means 30 Data processing method of telemetering device 31 Measurement step 32 Terminal Side packet signal transmission step 33 Measurement data storage step 34 Terminal side packet signal reception step 35 Comparison step 36 Error determination step 37 Error notification step 40 Data processing program of telemetering device Arm 41 measurement process 42 terminal side packet signal transmission processing 43 measurement data storage process 44 terminal side packet signal reception processing 45 comparison process 46 error judgment processing 47 error notification process 202 base station 203 the center server 221 and 241 CPU
222, 242 Control program storage unit 223, 243 Control unit 225 Wireless communication circuit 226 Memory 227 Measurement data acquisition circuit 228 Measurement device 229 Data extraction circuit 230 Data comparison circuit 231 Error data retransmission processing circuit 244 Communication control circuit 245 Measurement data extraction circuit 246 Error flag detection circuit 247 Retransmission instruction circuit 248 Weighing data storage unit 251, 262, D Weighing data 252 Weighing instrument information 253 Weighing value 254 Error flag P Weighing instrument output packet

Claims (10)

Measurement means for repeating a predetermined measurement at a predetermined time interval;
When the measurement data obtained as a result of measurement by the measuring means is transmitted to a specific destination along a transmission path specified in advance, if there is a communication terminal to be transmitted next on the transmission path, the communication terminal The measurement data of the communication terminal as its own device and subordinate communication terminals are collectively transmitted as one packet signal, and when there is no communication terminal to be transmitted next, this packet signal is directly transmitted to the specific destination. A terminal-side packet signal transmission means;
Measurement data storage means for at least temporarily storing the measurement data included in the packet signal transmitted by the terminal-side packet signal transmission means, and
Terminal side packet signal receiving means for receiving the packet signal transmitted by the communication terminal when there is a communication terminal to be transmitted next on the transmission path;
The measurement data other than the measurement data measured by the next communication terminal to be transmitted included in the packet signal received by the terminal-side packet signal reception means is compared with the corresponding measurement data stored in the measurement data storage means. A comparison means;
An error discriminating means for discriminating that an error has occurred in the measurement data when there is measurement data that could not be matched by the comparing means;
An error notifying means for notifying an error of measurement data determined by the error determining means to the specific destination.   2. The telemetering device according to claim 1, wherein the error notifying means incorporates in the packet signal transmitted by the terminal-side packet signal transmitting means that an error of measurement data has occurred and transmits it together with other measurement data. .   The terminal-side packet signal transmitting means is means for transmitting wirelessly, and the terminal-side packet signal receiving means is means for intercepting the radio transmitted by the terminal-side packet signal transmitting means of the next communication terminal to be transmitted. The telemetering device according to claim 1.   The terminal side packet signal transmitting means is means for transmitting by wire, and the terminal side packet signal receiving means is means for receiving the packet signal transmitted by the terminal side packet signal transmitting means of the communication terminal to be transmitted next by wire. The telemetering device according to claim 1, wherein:   As a result of the notification by the error notification means, when there is a request for retransmission of measurement data of the own apparatus from the specific destination, a retransmission request receiving means for receiving the request, and when the retransmission request receiving means receives a retransmission request 2. The telemetering device according to claim 1, further comprising: a packet signal retransmission unit configured to retransmit the measurement data stored in the measurement data storage unit that is requested to be retransmitted into a packet signal.   6. The telemetering apparatus according to claim 5, wherein the packet signal retransmitting means is means for transmitting measurement data requested to be retransmitted in a packet signal transmitted by the terminal side packet signal transmitting means.   6. The telemetering apparatus according to claim 5, wherein said packet signal retransmission means is means for transmitting measurement data requested to be retransmitted separately from a packet signal transmitted by said terminal side packet signal transmission means. A measurement unit that repeats a predetermined measurement at a predetermined time interval, and measurement data obtained as a result of measurement by the measurement unit are transmitted to a specific destination along a predetermined transmission path. When there is a communication terminal to be transmitted next on the transmission path, the measurement data of the communication terminal as its own device and the subordinate communication terminal are collectively transmitted to the communication terminal as one packet signal, and then transmitted. When there is no terminal, the terminal-side packet signal transmitting means for directly transmitting this packet signal to the specific destination, and at least after transmitting the measurement data contained in the packet signal transmitted by the terminal-side packet signal transmitting means Measurement data storage means for temporarily storing and the packet transmitted by the communication terminal when there is a communication terminal to be transmitted next on the transmission path. Terminal-side packet signal receiving means for receiving a signal, measurement data other than the measurement data measured by the communication terminal to be transmitted next included in the packet signal received by the terminal-side packet signal receiving means, and the measurement data storage means A comparison means for comparing the corresponding measurement data stored in the memory, an error determination means for determining that an error has occurred in the measurement data when there is measurement data that cannot be matched by the comparison means, and this error determination A plurality of telemetering devices comprising error notification means for notifying the specific destination of errors in measurement data determined by the means;
Of the plurality of telemetering devices, a collecting-side packet signal receiving unit that receives a packet signal transmitted from the terminal-side packet signal transmitting unit of the uppermost telemetering device, and a packet received by the collecting-side packet signal receiving unit Measurement data extraction means for extracting measurement data transmitted from each telemetering device from the signal, measurement data storage means for storing the measurement data extracted by the measurement data extraction means as data for each telemetering device, and the error notification means And a measurement data collection device comprising: a retransmission request unit that requests retransmission of the corresponding data among the measurement data stored in the measurement data storage unit. system. A measurement step of repeating a predetermined measurement at a predetermined time interval;
When the measurement data obtained each time measurement is performed in this measurement step is transmitted to a specific destination along a transmission path specified in advance, there is a communication terminal to be transmitted next on this transmission path The communication terminal transmits the measurement data of the communication terminal as its own device and the subordinate communication terminal together as one packet signal, and when there is no communication terminal to be transmitted next, this packet signal is transmitted as the specific signal. A terminal-side packet signal transmission step for transmitting directly to a destination;
A measurement data storing step for storing at least temporarily after transmitting the measurement data included in the packet signal transmitted in the terminal-side packet signal transmission step;
A terminal-side packet signal receiving step for receiving the packet signal transmitted by the communication terminal when there is a communication terminal to be transmitted next on the transmission path;
The measurement data other than the measurement data measured by the next communication terminal transmitted in the packet signal received in the terminal-side packet signal reception step is compared with the corresponding measurement data stored in the measurement data storage step. A comparison step;
An error determination step for determining that an error has occurred in the measurement data when there is measurement data that could not be matched in this comparison step;
A data processing method for a telemetering device, comprising: an error notification step of notifying an error of measurement data determined in the error determination step to the specific destination. On the computer,
A measurement process for repeating a predetermined measurement at a predetermined time interval;
When the measurement data obtained as a result of each measurement in this measurement process is transmitted to a specific destination along a transmission path specified in advance, there is a communication terminal to be transmitted next on this transmission path The communication terminal transmits the measurement data of the communication terminal as its own device and the subordinate communication terminal together as one packet signal, and when there is no communication terminal to be transmitted next, this packet signal is transmitted as the specific signal. A terminal-side packet signal transmission process for direct transmission to a destination;
A measurement data storage process that at least temporarily stores the measurement data included in the packet signal transmitted in the terminal-side packet signal transmission process;
A terminal-side packet signal reception process for receiving the packet signal transmitted by the communication terminal when there is a communication terminal to be transmitted next on the transmission path;
The measurement data other than the measurement data measured by the communication terminal to be transmitted next included in the packet signal received in the terminal-side packet signal reception process is compared with the corresponding measurement data stored in the measurement data storage process. Comparison process and
An error determination process for determining that an error has occurred in the measurement data when there is measurement data that cannot be matched in the comparison process;
A data processing program for a telemetering device, which executes an error notification process for notifying an error of measurement data determined in the error determination process to the specific destination.

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