JP5085220B2 - Data transmission control device, method thereof, and measurement system - Google Patents

Description

  The present invention relates to a data transmission control device for transmitting measurement data measured by a measuring instrument based on the position of a probe to a data processing device via a wireless medium, a method thereof, and a measurement system.

  Conventionally, a measuring instrument (vernier caliper) having a transmitter, a transmission button, a RAM, a receiver for receiving measurement data wirelessly transmitted from the transmitter of the measuring instrument, and transmission data received by the receiver. A measurement data collection system including a computer that collects and analyzes is known (see, for example, Patent Document 1).

  In the device described in Patent Document 1, when a transmission button is operated, a digital measurement value of an object to be measured is edited into a measurement data message. And the structure which wirelessly outputs this measurement data message | telegram is taken in the transmitter.

By the way, in the configuration in which measurement data is wirelessly transmitted as described in Patent Document 1, a transceiver (hereinafter referred to as a transmitter) that is connected to or built in a measuring instrument is small, lightweight, portable, and can be freely moved and installed. Therefore, a commercially available battery is often used as a power supply source. In such a system, in order to meet a request at an arbitrary time from a transceiver that receives measurement data (hereinafter referred to as a receiver), it is usually necessary that the transmitter is always in a receiving state.
However, such a system cannot be used for a long time due to the limitation of battery characteristics mounted on the transmitter. In view of this, a so-called event-driven method has been considered in which measurement data is automatically transmitted by radio when a change occurs in the measurement data.

In this event driven system, as shown in FIG. 6, when power is turned on, measurement data is acquired (step S11), and it is determined whether or not it is the first acquired measurement data (step S12). In step S12, when it is determined that it is the first time, the process waits for a random time Trn (step S13), transmits measurement data (step S14), and returns to step S11. Here, the random time Trn is a waiting time for avoiding interference with other wireless devices.
On the other hand, if it is determined in step S12 that it is not the first time, a comparison process is performed between the acquired transmission candidate measurement data and the last transmission measurement data transmitted last (step S15), and the measurement data match. Whether or not (step S16). If it is determined in step S16 that they match, that is, if it is determined that the measurement data has not changed, the process of step S11 is performed without transmitting the measurement data. If it is determined in step S16 that they do not match, that is, the measurement data has changed, the process waits for a random time Trn (step S17). And the structure which transmits this changed measurement data (step S18) and implements the process of step S11 is taken.

Japanese Patent Publication No. 8-21154

  However, in the configuration using the event-driven method as described above, while the measuring instrument is changing the count, that is, while the probe such as the caliper slider, the micrometer, and the spindle of the indicator is moving to the measurement point. In addition, useless measurement data unrelated to the measurement point may be transmitted. For this reason, the problem that there exists a possibility that the power consumption accompanying transmission of measurement data may increase is mentioned as an example.

  In view of such a situation, an object of the present invention is to provide a data transmission control device, a method thereof, and a measurement system capable of suppressing power consumption associated with transmission of measurement data.

The data transmission control device of the present invention is a data transmission control device that transmits measurement data measured by a measuring instrument based on the position of a probe to a data processing device via a wireless medium, and acquires the measurement data. A data matching means for judging whether or not the measurement data of the transmission candidate acquired by the data acquisition means and the measurement data of the final transmission finally transmitted to the data processing device match. And a measuring element stationary determining means for determining whether or not the measuring element is stationary when the measurement data of the transmission candidate is measured when the data matching determining means determines that they do not match, and this measurement When it is determined by the child stationary determination means that the measuring element is stationary, the measurement data of the transmission candidate is transmitted to the data processing device, and it is determined that the measuring element is not stationary. , And a transmission control means does not transmit the measurement data of the transmission candidate, the measuring element stillness determining unit, after it is determined that not the match, the same at least one of the measurement data and the measurement data of the transmission candidate Is recognized by the data acquisition means, and when it is recognized that a set time has elapsed, it is determined that the measuring element is stationary .

The data transmission control method of the present invention is a data transmission control method for transmitting measurement data measured by a measuring instrument based on the position of a probe to a data processing device via a wireless medium by a calculation means, It means the step of determining a step of acquiring the measurement data, whether said measurement data transmitted last transmitted to the measurement data and the end of this obtained transmission candidate to the data processing device matches And when determining that the measuring element was stationary when the measurement data of the transmission candidate was measured, and when determining that the measuring element was stationary , and transmits the measurement data of the transmission candidate to the data processing apparatus, when it is determined that not stationary, performs a process that does not transmit the measurement data of the transmission candidate, said measuring element stationary In the step of determining whether or not the measurement data has been determined to be inconsistent, it is recognized that at least one measurement data that is the same as the measurement data of the transmission candidate has been acquired, and a set time has elapsed. If it is recognized, it is performed by determining that the measuring element is stationary .

  Here, as the measuring device, those capable of outputting the measurement data as digital values are suitable, such as a caliper (a digimatic caliper), a height measuring device (a digimatic height gauge), a depth measuring device (a digimatic depth gauge), Micrometer (Digimatic Micrometer), Inner Diameter Measuring Instrument (Digimatic Hall Test), Dial Gauge (Digimatic Indicator), Various Shape Measuring Machines (Surface Roughness Measuring Machine, Contour Shape Measuring Machine, Roundness Measuring Machine, Surface texture measuring instrument etc.), coordinate measuring instrument, pressure measuring instrument and the like. As the data processing device, a data collection processing device dedicated to each measuring instrument, a personal computer (PC) capable of executing a measurement data processing program, or the like can be used.

According to these inventions, when it is determined that the measurement data of the transmission candidate and the measurement data of the final transmission transmitted to the data processing apparatus do not coincide with each other, when the measurement data of the transmission candidate is measured, It is determined whether or not is stationary. Then, when it is determined that it is stationary, the transmission candidate measurement data is transmitted to the data processing device, and when it is determined that it is not stationary, it is not transmitted.
For this reason, when acquiring measurement data of transmission candidates that do not match the measurement data of the final transmission, useless measurement data measured while the probe moves to the measurement point, for example, is not transmitted, Since only the measurement data measured with the measuring element stationary at the measurement point is transmitted, the power consumption associated with the transmission of the measurement data is suppressed.
In addition, according to the present invention, after determining that the measurement data of the transmission candidate does not match the measurement data of the final transmission, when recognizing that at least one measurement data that is the same as the measurement data of the transmission candidate is acquired, It is determined that the probe is stationary when measuring the candidate measurement data.
For this reason, since it is determined whether or not the probe is stationary based on the number of measurement data acquisitions of transmission candidates that match each other, for example, a sensor is provided to determine whether or not the probe is stationary. The power consumption associated with the transmission of the measurement data is suppressed without causing a complicated configuration as in the case.
Furthermore, according to the present invention, after obtaining measurement data of a transmission candidate that does not match the measurement data of the final transmission, at least one measurement data that is the same as the measurement data of this transmission candidate is obtained, and the set time has elapsed When it is recognized that the measurement value of the transmission candidate is measured, it is determined that the probe is stationary.
Here, when it is determined that the measurement data acquisition number of transmission candidates that coincide with each other reaches a set number, the period until transmission may be increased depending on the measurement data acquisition interval. is there. On the other hand, when it is determined that the camera is stationary when the set time has elapsed, the period until transmission is constant regardless of the measurement data acquisition interval. Accordingly, by adopting a configuration in which it is determined that the camera is stationary when the set time has elapsed, the measurement can be prevented from being prolonged.

  In the data transmission control device of the present invention, the transmission control means transmits the measurement data of the transmission candidate determined to be inconsistent to the data processing device based on the determination in the probe stationary determination means. 1 transmission process and a second transmission process for transmitting the measurement data of the transmission candidate determined to be inconsistent to the data processing apparatus without going through the determination process in the probe stationary determination unit The structure to implement is preferable.

According to the present invention, the first transmission process for determining whether or not to transmit the measurement data based on whether or not the probe is stationary, and the measurement data regardless of whether or not the probe is stationary. And a second transmission process for transmitting.
For this reason, when it is desired to measure while suppressing the power consumption, the first transmission process is performed, and for example, when it is desired to perform measurement while the probe such as the scanning measurement is moving with respect to the object to be measured. The second transmission process can be performed, and an appropriate measurement data transmission process according to the measurement purpose can be performed.

  Moreover, in the data transmission control apparatus of this invention, the structure which operate | moves with the electromotive force of a battery is preferable.

According to this invention, the data transmission control device operates by the electromotive force of the battery.
For this reason, even if it is a case where a to-be-measured object exists in the position away from commercial power supply, measurement data is transmitted to a data processor, suppressing the power consumption accompanying transmission of measurement data. Further, since the power consumption is suppressed, the battery life can be extended. Furthermore, it is small, light and portable, and can be used for applications that require freedom of movement and installation.

  The measurement system of the present invention includes a measuring device that measures measurement data based on the position of a probe, the data transmission control device that transmits the measurement data of the measuring device via the wireless medium, and the data transmission control. And a data processing device for receiving and processing the measurement data transmitted from the device via a wireless medium.

  According to the present invention, there is provided a measurement system that exhibits the same effects as the data transmission control device as described above. In addition, since a wireless medium is used for transmission of measurement data, measurement data can be transmitted even when the distance between the data processing device and the data transmission control device is long, and the range of use of the measurement system can be expanded. It becomes possible.

  The measurement system of the present invention includes a plurality of the data transmission control devices, and the transmission control means of each of the plurality of data transmission control devices transmits the transmission from the other data transmission control device to the data processing device. It is preferable that the transmission candidate measurement data is transmitted at a timing when the candidate measurement data is not transmitted.

According to the present invention, the plurality of data transmission control devices provided in the measurement system transmit measurement data as transmission candidates at timings at which measurement data is not transmitted from other data transmission control devices.
For this reason, the frequency of communication of measurement data in the entire measurement system is reduced, and a plurality of measurement data are not transmitted to the data processing device at the same timing, thereby reducing communication interference.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

[Configuration of measurement system]
First, the configuration of the measurement system of the first embodiment will be described.
FIG. 1 shows a measurement system 1A according to an embodiment of the present invention.
In FIG. 1, a measurement system 1A includes a measuring instrument 10 such as a caliper (measuring instrument that is manually measured by an operator) and a dial gauge (measuring instrument that is attached to a jig or the like for automatic measurement), and the like. A computer 20 as a data processing device for processing measurement data of the measuring instrument 10, a slave transceiver 30 connected to the measuring instrument 10 for wirelessly transmitting measurement data, and a slave transceiver 30 connected to the computer 20 and transmitted from the slave transceiver 30. And a parent transceiver 40 that transmits the received measurement data to the computer 20. In addition, the measurement system 1A includes at least one measuring instrument 10 and a slave transceiver 30, respectively, and one computer 20 and a parent transceiver 40, respectively.

  The measuring device 10 outputs measurement data obtained by measuring an object to be measured based on the position of the measuring jaw 11 as a measuring element as a digital value and transmits it to the child transceiver 30. Each of the plurality of measuring devices 10 is assigned a unique ID number, and these ID numbers are recorded in the child transceiver 30.

  The computer 20 includes a CPU (central processing unit) (not shown), a memory (storage device), an external storage device, a monitor (display device) 21, a keyboard (input device), and the like. Data is incorporated. And computer 20 will process this measurement data suitably, if measurement data is acquired via parent transceiver 40.

As shown in FIG. 2, the slave transceiver 30 includes a transceiver body 31, a connection cable 32 for connecting to the measuring instrument 10, and a connection portion 33.
The transmitter / receiver main body 31 is controlled by controlling an antenna (not shown), a RAM for temporarily storing measurement data, a so-called button-type lithium battery 34 that supplies power for operating the slave transmitter / receiver 30, and each part of the slave transmitter / receiver 30. A data transmission control device 31A or the like as a calculation means for transmitting data is incorporated.

  The data transmission control device 31A is configured as various programs and includes a data acquisition unit 31A1, a data match determination unit 31A2, a probe stationary determination unit 31A3, and a transmission control unit 31A4 as shown in FIG. .

  The data acquisition unit 31A1 acquires measurement data from the measuring device 10 at predetermined intervals, for example. Then, the acquired measurement data is appropriately stored in the RAM.

  When the data coincidence determination unit 31A2 determines that the measurement data acquired by the data acquisition unit 31A1 is acquired for the first time after the power of the slave transceiver 30 is turned on, a data initial acquisition signal to that effect is sent to the transmission control unit 31A4. Output. If it is determined that the data is not acquired for the first time after the power is turned on, the acquired measurement data of transmission candidates to the parent transceiver 40 is compared with the measurement data of the last transmission transmitted to the parent transceiver 40 last. If it is determined that the measurement data has changed without the coincidence, a data change signal to that effect is output to the stylus stationary determination means 31A3. If it is determined that the measurement data does not change because they match, a non-transmission request signal indicating that the measurement data is not transmitted is output to the transmission control means 31A4.

When acquiring the data change signal from the data coincidence determination unit 31A2, the probe stationary determination unit 31A3 determines whether or not one or more measurement data that is the same as the transmission candidate measurement data is further acquired by the data acquisition unit 31A1. If it is determined that the measurement data has been acquired, that is, if it is determined that a plurality of measurement data that are the same as each other and acquired is not the same as the final transmission data, the first transmission candidate measurement data is acquired and transmitted. It is determined whether or not the transmission processing time Tn until the candidate measurement data is transmitted is less than a preset set time Ts.
Here, the transmission processing time Tn is, for example, several tens of milliseconds to several hundreds of milliseconds, and includes a random time Trn described later immediately before transmitting measurement data (see FIG. 4). Further, the transmission processing time Tn appropriately changes depending on the type of the measuring instrument 10.
The set time Ts is longer than the transmission processing time Tn and the random time Trn, and is set to several seconds, for example. And this setting time Ts is suitably changed by the setting input by a user.

Then, when the measuring element stationary determination means 31A3 determines that the transmission processing time Tn is longer than the set time Ts, the measuring jaw 11 is the measurement data of the transmission candidate measured by being stationary in contact with the measurement point. Then, a transmission request signal for transmitting the measurement data is output to the transmission control means 31A4.
Further, when the probe stationary determination unit 31A3 determines that one or more pieces of measurement data that are the same as the transmission candidate measurement data have not been acquired or that the transmission processing time Tn is less than the set time Ts, the measurement jaw Since 11 is measurement data of a transmission candidate measured in a non-stationary state such as moving to a measurement point, a non-transmission request signal is output to the transmission control means 31A4.
In other words, the measuring element stationary determination means 31A3 determines whether the measurement jaw 11 is stationary when the measurement data of the transmission candidate is measured. A determination process for determining whether or not the transmission processing time Tn is less than the set time Ts is performed.

The transmission control unit 31A4 waits for the random time Trn when acquiring the data initial acquisition signal from the data match determination unit 31A2. Here, the random time Trn is shorter than the transmission processing time Tn and is, for example, several tens of milliseconds, and is a waiting time for avoiding interference with other wireless devices such as other child transceivers 30. Then, the measurement data acquired by the data acquisition unit 31A1 is converted into the parent transceiver 40 as shown in FIG. 1 using wireless communication conforming to IEEE (Institute of Electrical and Electronics Engineers) 802.15.4, for example. Send to.
In addition, when the transmission control unit 31A4 obtains the transmission request signal from the measuring element stationary determination unit 31A3, the transmission control unit 31A4 transmits the measurement data of the transmission candidate to the parent transceiver 40 after waiting for the random time Trn. Here, when transmitting the transmission candidate measurement data, the first, last, or the one acquired in the order set in advance among the plurality of the same measurement data is transmitted.
Furthermore, when the transmission control unit 31A4 acquires the non-transmission request signal from the data coincidence determination unit 31A2 or the stylus stationary determination unit 31A3, the transmission control unit 31A4 does not perform the transmission processing of the transmission candidate measurement data.
The transmission control means 31A4 transmits measurement data using a wireless medium as described above. For this reason, a large current on the order of mA (milliampere), which is larger than the measurement operation, is consumed during the transmission process.

The parent transceiver 40 includes an antenna (not shown) that is a receiving unit and a transmitting unit for wirelessly transmitting and receiving data to and from the child transmitter / receiver 30, and is connected to the computer 20 by a connection cable 41. Send to.
The parent transceiver 40 is not limited to the one connected to the computer 20, but may be one connected to a dedicated data processing device. In addition, the parent transceiver 40 may be configured to be connectable to both the computer 20 and the dedicated data processing device. In this case, the parent transceiver 40 includes a changeover switch, a connection port, and the like according to the connected device. Just do it.

[Measurement system operation]
Next, the operation of the measurement system 1A will be described.
Note that the same processes as those in the conventional configuration described above are denoted by the same reference numerals, and description thereof will be simplified or omitted as appropriate.

As shown in FIG. 4, when the power is turned on, the slave transmitter / receiver 30 of the measurement system 1A acquires measurement data from the measuring instrument 10 (step S11), and determines whether or not it is first acquisition measurement data ( When step S12) is performed and it is determined that it is the first time, standby for random time Trn (step S13) and measurement data transmission processing (step S14) are performed, and the process returns to step S11.
On the other hand, if it is determined in step S12 that it is not the first time, comparison processing between the transmission candidate measurement data and the final transmission measurement data is performed (step S15), and it is determined whether or not they match (step S16). . If it is determined in step S16 that they match, the process of step S11 is performed without transmitting the transmission candidate measurement data. If it is determined in step S16 that they do not match, it is determined whether or not one or more pieces of measurement data that are the same as the transmission candidate measurement data have been acquired (step S21).

In this step S21, when it is determined that it has not been acquired, the processing of step S11 is performed without transmitting to the parent transceiver 40 because the transmission candidate measurement data is measured when the measurement jaw 11 is not stationary. carry out. On the other hand, if it is determined in step S21 that further acquisition has been performed, it is determined whether or not the transmission processing time Tn is less than the set time Ts (step S22). If it is determined in step S22 that the measurement time is less than the set time Ts, the transmission jaw measurement data measured when the measurement jaw 11 is not stationary or temporarily stationary is transmitted to the parent transceiver 40. The process of step S11 is performed without transmitting.
If it is determined in step S22 that the time is equal to or longer than the set time Ts, a process of transmitting to the parent transceiver 40 is performed for transmission candidate measurement data measured when the measurement jaw 11 is stationary. That is, waiting for the random time Trn (step S17), transmission candidate measurement data transmission processing (step S18) is performed, and the process returns to step S11.

[Effects of First Embodiment]
As described above, in the first embodiment, the data transmission control device 31A of the child transceiver 30 of the measurement system 1A passes through the measurement data of the transmission candidate measured by the measuring instrument 10 and finally the parent transceiver 40. When it is determined that the measurement data of the final transmission transmitted to the computer 20 does not match, it is determined whether the measurement jaw 11 of the measuring instrument 10 is stationary when the measurement data of the transmission candidate is measured. Then, when it is determined that it is stationary, the transmission candidate measurement data is transmitted to the computer 20, and when it is determined that it is not stationary, it is not transmitted.
For this reason, when the measurement data of the transmission candidate that does not match the measurement data of the final transmission is acquired, the measurement jaw 11 is measured without transmitting unnecessary measurement data measured while moving to the measurement point, for example. Since the jaw 11 transmits only measurement data measured at a measurement point while stationary, power consumption associated with transmission of measurement data can be suppressed.
Moreover, since a wireless medium is used for transmission of measurement data, measurement data can be transmitted even when the distance between the slave transceiver 30 and the computer 20 is long, and the range of utilization of the measurement system 1A can be expanded. .

Then, after determining that the measurement data of the transmission candidate does not match the measurement data of the final transmission, the data transmission control device 31A recognizes that at least one measurement data that is the same as the measurement data of the transmission candidate is acquired. It is determined that the measurement jaw 11 is stationary at the time of measurement of the transmission candidate measurement data.
For this reason, for example, power consumption can be suppressed without causing complication of the configuration as in the case where a sensor is provided to determine whether or not the measuring jaw 11 is stationary.

The data transmission control device 31A acquires the measurement data of the transmission candidate that does not match the measurement data of the final transmission, then acquires at least one measurement data that is the same as the measurement data of the transmission candidate, and sets the set time Ts. When it is recognized that the measurement jaw 11 has elapsed, it is determined that the measurement jaw 11 is stationary when measuring the measurement data of the transmission candidate.
For this reason, for example, in the case where it is determined that the measurement data has been stationary when the number of pieces of measurement data that match each other reaches the set number, there is a possibility that the period until transmission will be long depending on the measurement data acquisition interval. However, by determining that the camera is stationary when the set time Ts has elapsed as in the present embodiment, the period until transmission can be made constant regardless of the measurement data acquisition interval. Therefore, the lengthening of the measurement is suppressed and the power consumption accompanying the measurement can be suppressed.

The setting time Ts can be changed by the user.
For this reason, by changing the set time Ts according to the tact time of the measuring instrument 10, the interval between measurement points, etc., it is possible to suppress the power consumption associated with the transmission of the measurement data and to appropriately measure the measurement data according to the measurement purpose. Can be sent.

Further, a lithium battery 34 is applied as a power source for operating the slave transceiver 30.
For this reason, even if it is a case where a to-be-measured object exists in the position away from commercial power supply, measurement data can be transmitted to the computer 20, suppressing the power consumption accompanying transmission of measurement data. In addition, since the power consumption can be suppressed, the life of the lithium battery 34 can be extended, and the number of replacements of the lithium battery 34 can be reduced. Furthermore, it is compact, lightweight, portable, can be used for applications that require freedom of movement, installation, and the like, and can be easily expanded.

Then, the plurality of data transmission control devices 31A provided in the measurement system 1A transmit measurement data of transmission candidates at timings when the measurement data is not transmitted from the other data transmission control devices 31A, respectively.
For this reason, the communication frequency of the measurement data in the entire measurement system 1A can be reduced, and a plurality of measurement data are not transmitted to the computer 20 at the same timing, thereby reducing communication interference.

[Second Embodiment]
Next, 2nd Embodiment of this invention is described based on drawing.

[Configuration of measurement system]
First, the configuration of a measurement system 1B according to the second embodiment of the present invention will be described.
The configuration of the measurement system 1B is the same as that of the first embodiment described above, and will be described with reference to FIGS. Moreover, about the structure same as 1st Embodiment, the same name and the same code | symbol are attached | subjected and description is abbreviate | omitted suitably. Furthermore, about the structure substantially equal to 1st Embodiment, the same name is attached | subjected and description is simplified suitably.

In FIG. 1, the measurement system 1 </ b> B includes a child transceiver 50 instead of the child transceiver 30.
As shown in FIG. 2, the child transceiver 50 includes a data transmission control device 51 </ b> A as a calculation unit instead of the data transmission control device 31 </ b> A provided in the transceiver body 31. Further, as shown in FIG. 3, the data transmission control device 51A includes data acquisition means 31A1, data coincidence determination means 51A2, measuring element stationary determination means 51A3, and transmission control means 51A4.

  When the data match determination unit 51A2 determines that the measurement data is changed because the measurement data of the transmission candidate does not match the measurement data of the final transmission, the data match determination unit 51A2 outputs a data change signal to the transmission control unit 51A4. In addition, the same processing as that of the data coincidence determination unit 31A2 is performed, and a data initial acquisition signal and a non-transmission request signal are output to the transmission control unit 51A4.

  When the probe stationary determination unit 51A3 acquires a setting B signal described later from the transmission control unit 51A4, whether the measurement jaw 11 is stationary when the measurement data of the transmission candidate is measured, as in the probe stationary determination unit 31A3. A determination process of whether or not is performed, and a transmission request signal or a non-transmission request signal is output to the transmission control means 51A4.

When the transmission control means 51A4 recognizes that the setting data A is set to transmit the measurement data when the measurement data changes regardless of whether or not the measurement jaw 11 is stationary by the setting input of the user. Then, the measurement data of the transmission candidate determined not to match the measurement data of the final transmission by the data match determination means 51A2 is transmitted to the parent transceiver 40 after waiting for the random time Trn.
Further, the transmission control means 51A4 is set to the setting B for determining whether or not to transmit the measurement data of the transmission candidate based on whether or not the measurement jaw 11 is stationary by the user's setting input. Is recognized, a setting B signal to that effect is output to the stylus stationary determination means 51A3. When a transmission request signal is acquired corresponding to the setting B signal, the measurement data of the transmission candidate is transmitted to the parent transceiver 40 after waiting for the random time Trn.
The transmission control unit 51A4 performs the same processing as the transmission control unit 31A4 when acquiring the data initial acquisition signal and the non-transmission request signal.
The setting A transmission process corresponds to the second transmission process of the present invention, and the setting B transmission process corresponds to the first transmission process of the present invention.

[Measurement system operation]
Next, the operation of the measurement system 1B will be described.
In addition, about the same operation | movement as 1 A of measurement systems of 1st Embodiment, the same code | symbol is attached | subjected and description is simplified or abbreviate | omitted suitably.

As shown in FIG. 5, the slave transmitter / receiver 50 of the measurement system 1 </ b> B performs the processing of steps S <b> 11 to S <b> 16 after turning on the power, and performs the processing of step S <b> 11 when it is determined in step S <b> 16 that they match. If it is determined in step S16 that they do not match, it is determined whether or not setting B is set (step S31).
If it is determined in step S31 that the setting B is set, the processes of steps S21, S22, S17, and S18 are appropriately performed. That is, a process for transmitting the measurement data of the transmission candidate determined not to coincide with the measurement data of the final transmission is performed based on the stationary state of the measurement jaw 11 at the time of measurement data measurement.
On the other hand, if it is determined in step S31 that the setting A is set instead of the setting B, the processes in steps S17 and S18 are performed. In other words, a process for transmitting the measurement data of the transmission candidate determined not to coincide with the measurement data of the final transmission is performed regardless of the stationary state of the measurement jaw 11.

[Effects of Second Embodiment]
According to 2nd Embodiment mentioned above, in addition to the effect similar to the said 1st Embodiment, there can exist the following effects.

That is, the data transmission control device 51A of the child transceiver 50 of the measurement system 1B transmits the measurement data of the transmission candidates measured by the measuring instrument 10 and the final transmission transmitted to the computer 20 via the parent transceiver 40. When it is determined that the measurement data does not match, it is determined whether or not the setting B is set. If the setting B is set, it is determined whether or not the measurement data is to be transmitted based on whether or not the measurement jaw 11 is stationary, and is transmitted as appropriate. When the setting A is set, the measurement data is transmitted regardless of whether or not the measurement jaw 11 is stationary.
Therefore, when it is desired to perform measurement while suppressing power consumption, the transmission process of setting B is performed, and for example, when measurement is desired while the measuring jaw 11 is moving with respect to the object to be measured, such as scanning measurement. Can perform transmission processing of setting B, and can perform transmission processing of appropriate measurement data according to the measurement purpose.

[Modification of Embodiment]
In addition, this invention is not limited to embodiment mentioned above, The deformation | transformation shown below is included in the range which can achieve the objective of this invention.

  That is, the measuring instrument of the present invention is not limited to calipers, but a height measuring instrument, depth measuring instrument, micrometer, inner diameter measuring instrument, dial gauge, surface roughness measuring instrument, contour shape measuring instrument, roundness measuring instrument Any measuring instrument capable of measuring measurement data based on the position of a probe such as a coordinate measuring instrument, a pressure measuring instrument, etc.

In the first and second embodiments, the computer 20 is used as the data processing device. However, the present invention is not limited to this, and a dedicated data processing device may be used.
Furthermore, as a wireless communication method between the child transceivers 30 and 50 and the parent transceiver 40 in the first and second embodiments, various general wireless communication methods can be employed. A repeater that relays measurement data may be provided between the slave transceivers 30 and 50 and the parent transceiver 40.
In the first and second embodiments, the child transceivers 30 and 50 are configured separately from the measuring device (vernier caliper) 10 and connected to the measuring device 10. At least one of an antenna, data transmission control devices 31A and 51A, operation means, and the like may be provided integrally with the device. Similarly, at least one of the units of the parent transceiver may be provided integrally with the data processing device.

  In the first and second embodiments, a contact-type or non-contact-type sensor may be provided as a configuration for determining whether or not the measurement jaw 11 is stationary.

  In the first and second embodiments, after determining that a plurality of transmission candidate measurement data that does not match the final transmission measurement data has been acquired, this transmission is performed without determining whether the set time Ts has elapsed. It is good also as a structure which transmits measurement data of a candidate. That is, the process of step S22 may not be performed.

  Further, in the first and second embodiments, the lithium battery 34 is applied as a power source for operating the slave transceivers 30 and 50, but a commercial power source, a solar cell, or the like may be applied.

  In the first and second embodiments, measurement data may be transmitted without waiting for the random time Trn. That is, the processing of steps S13 and S17 need not be performed.

Further, the data transmission control devices 31A and 51A may be provided in an element such as a CPU or a microcomputer.
With such a configuration, it is possible to provide the slave transceivers 30 and 50 that can suppress the power consumption associated with the transmission of measurement data with a simple configuration in which an element such as a CPU is attached. Can be planned.

Further, a program for processing executed by the data transmission control devices 31A and 51A may be distributed via a network such as the Internet.
Furthermore, such a program may be recorded on a recording medium.
By adopting such a configuration, it is possible to further facilitate the use expansion by distributing or distributing the recording medium via the network.

In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described with particular reference to certain specific embodiments, but without departing from the spirit and scope of the invention, Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations.
Therefore, the description limited to the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of some or all of such restrictions is included in this invention.

  INDUSTRIAL APPLICABILITY The present invention is suitable for a data transmission control device that transmits measurement data measured by a measuring instrument based on the position of a probe to a data processing device via a wireless medium, a method thereof, and a measurement system.

It is a schematic diagram which shows schematic structure of the measurement system which concerns on 1st Embodiment and 2nd Embodiment of this invention. It is a schematic diagram which shows schematic structure of the sub transmitter / receiver in the said 1st, 2nd embodiment. It is a schematic diagram which shows schematic structure of the data transmission control apparatus in the said 1st, 2nd embodiment. It is a flowchart which shows the transmission process of the measurement data in the said 1st Embodiment. It is a flowchart which shows the transmission process of the measurement data in the said 2nd Embodiment. It is a flowchart which shows the transmission process of the conventional measurement data.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1A, 1B ... Measurement system 10 ... Measuring instrument 11 ... Measuring jaw as measuring element 20 ... Computer as data processing device 31A, 51A ... Data transmission control device as calculation means 31A1 ... Data acquisition means 31A2, 51A2 ... Data matching judgment Means 31A3, 51A3 ... Measuring element stationary judgment means 31A4, 51A4 ... Transmission control means 34 ... Lithium battery

Claims (6)

A data transmission control device that transmits measurement data measured by a measuring instrument based on the position of a probe to a data processing device via a wireless medium,
Data acquisition means for acquiring the measurement data;
Data match determination means for determining whether or not the measurement data of the transmission candidate acquired by the data acquisition means and the measurement data of the final transmission transmitted to the data processing device at the end match,
If it is determined that the data match determination means does not match, the probe stationary determination means for determining whether or not the probe is stationary when the measurement data of the transmission candidate is measured,
When it is determined by the measuring element stationary determination means that the measuring element is stationary, the measurement data of the transmission candidate is transmitted to the data processing device, and when it is determined that the measuring element is not stationary, the measurement of the transmission candidate is performed. A transmission control means that does not transmit data ,
The measuring element stationary determining means recognizes that at least one measurement data that is the same as the measurement data of the transmission candidate is acquired by the data acquiring means after it is determined that they do not match, and a set time The data transmission control device according to claim 1 , wherein it is determined that the measuring element is stationary when recognizing that elapses . The data transmission control device according to claim 1 ,
The transmission control means determines that the measurement data of the transmission candidate determined to be inconsistent with the first transmission processing for transmitting to the data processing device based on the determination in the measuring element stationary determination means and does not match. And a second transmission process for selectively transmitting the measured data of the transmission candidate transmitted to the data processing apparatus without going through the determination process in the measuring element stationary determination means. . The data transmission control device according to claim 1 or 2 ,
A data transmission control device that operates by an electromotive force of a battery. A measuring instrument that measures measurement data based on the position of the probe;
The data transmission control device according to any one of claims 1 to 3 , wherein the measurement data of the measuring device is transmitted via the wireless medium;
A data processing device that receives and processes the measurement data transmitted from the data transmission control device via a wireless medium;
A measurement system comprising: The measurement system according to claim 4 ,
A plurality of the data transmission control devices,
The transmission control means of each of the plurality of data transmission control devices transmits the transmission candidate measurement data at a timing when the transmission candidate measurement data is not transmitted from the other data transmission control device to the data processing device. A measurement system characterized by A data transmission control method for transmitting measurement data measured by a measuring instrument based on a position of a probe by a calculation means to a data processing device via a wireless medium,
The computing means is
Obtaining the measurement data;
Determining whether or not the measurement data of the acquired transmission candidate and the measurement data of the last transmission transmitted to the data processing device are the same ;
If it is determined that they do not match, the step of determining whether or not the probe is stationary when the measurement data of the transmission candidate is measured;
If the measuring element is determined to be stationary, and transmits the measured data of the transmission candidate to the data processing apparatus, when it is determined that not stationary, and a process that does not transmit the measurement data of the transmission candidate Done
The step of determining whether or not the probe is stationary recognizes that at least one measurement data that is the same as the measurement data of the transmission candidate has been acquired after it is determined that they do not match; and A data transmission control method , comprising: recognizing that the set time has elapsed and determining that the probe has been stationary .

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