TW475181B - Device and method for remote calibration and transmission - Google Patents

Abstract

A device and method for remote calibration and transmission which is used for the calibration for a measuring instrument on remote site with an analog calibration signal, which includes the following steps: generating a calibration signal by a signal generating unit of the calibration device; converting the calibration signal by a first conversion unit to generate a first digital signal; providing at least a correction value for a feedback controller to correct the first digital signal; generating a second digital signal to a remote site; converting the remote second digital signal by a second conversion unit to a simulated calibration signal for analog simulation and converting the simulated calibration signal for analog simulation by a third conversion unit to a third digital signal; with feedback to regulate the second digital signal until the difference between the third and the first digital signals less than a predetermined value and approximating the simulated calibration signal to a stable analog simulation calibration signal; and, using an identical signal measuring unit to measure the calibration signal, stabilize the simulated calibration signal and regulate these correction values, respectively; then, repeating the above-mentioned steps until the measurement variance less than another predetermined value to complete the establishment of the remote transmission.

Description

475181 V. Description of the invention (1) Description of the invention The invention relates to a device for remote correction and transmission, and the invention particularly relates to a method for remote correction and transmission of an instrument; and the method for remote correction and transmission, Measuring instrument setup 'Application The measuring instrument itself needs to be calibrated to maintain accuracy. τ ^ f. Generally, the precision calibration function is provided by a special corrector, and the calibration electrical characteristics are measured by the instrument to be calibrated, and the measurement error value of the electrical characteristics is adjusted to adjust the instrument. For example, to calibrate, the instrument uses a corrector to provide a predetermined voltage for calibration. Some schools ^ ^] often profitable

The Fluke 5700A's multi-function corrector can provide a variety of electrical characteristics such as voltage, resistance, capacitance, and more. Features: For units that require instrument calibration, the price of the calibrator is similar. Therefore, it is often necessary to send the batch of measuring instruments to the fixed-point measurement to the unit that owns the calibrator (such as national field and shellfish). Structure) ΐ "is large; furthermore, it is necessary to consider that the shipping method needs to be improved. Li Guanyi generates shirt ringing. Typical instrument calibration is correct. If the instrument calibration can be performed through the communication system, the above-mentioned typical instrument calibration is improved. Disadvantages of the method In view of this, the uninvented is proposed as follows: Summary of the invention The first of the present invention uses a calibration signal pair 0699-61 MTIV.ptd as a calibration device, which is suitable for measuring instruments in the first area Carry out the calibration, the calibration is installed on page 5. V. Description of the invention (2)

^ Includes a signal generating unit that generates the correction signal; a first conversion unit 'that converts the correction signal according to the first range of reference signals to generate a corresponding first digital signal; a feedback control unit that is based on at least A correction value repairs the first digital signal to generate a second digital signal; a first changing unit converts the second digital flood signal according to a reference signal in the second range to generate a corresponding analog correction signal; a first The three conversion unit converts the analog correction signal according to the ^ th range and the reference signal to generate a corresponding second digital signal; wherein the feedback control unit adjusts the f two digital signal more continuously until the first and the first The difference between the three digital signals is less than the pre-sigh value, so that the analog calibration signal becomes a stable ^ ^ calibration signal close to the calibration signal. The stable analog calibration signal is suitable for calibrating the measurement. The fl number generating unit, the first conversion unit, and the feedback control unit are located in the first area, and the first and third conversion units are located in the second area. The question value == further includes a communication device 4 in the first and second areas ^ one, second, and third digital signals. The communication device is an Internet system. ~

The value of the cup η 2 includes the ratio between the first, second, and third ranges; or the mutual deviation between the second, second, and third reference signal ranges. The feedback control unit is set in a computer. A feature of the flute of the present invention-^ # ^ ^ One feature is a transmission device for passing from the first zone-a class t 类 number to the second zone, yuan, according to the first chrome! ¥! Reference of Shehexia Zaowei The signal converts this analog signal to produce a corresponding

475181

5. Description of the invention (3) One of the first digital signals; a feedback control unit, which corrects the first digital signals based on at least one final positive value, and generates a second digital signal to the first area, a second The conversion unit generates a corresponding analog analog signal according to the second range of reference signals ^ changes the second digital signal; a third to 2 unit converts the analog analog signal according to the third range of reference signals to generate a corresponding first analog signal. Three-digit signal; among them, the feedback control unit adjusts the second-digit signal more continuously, so that the difference between the first and third digital signals is different from the pre-value, and the far-right analogy analogy becomes closer to the One of the analog drugs stabilizes the analog signal. Among them, "the first conversion unit and the feedback control unit are located in the first area" and the second and third conversion units are located in the second area. The transmitting device further includes a communication device for transmitting the first, first, and third digital signals between the first and second areas. The communication device is an Internet system. The correction value includes a range ratio between the first, second, and third ranges; or includes a mutual offset between the first, second, and third ranges. The feedback control unit is set in a computer. A third feature of the present invention is a method for establishing a remote calibration, wherein the remote calibration uses a calibration signal to calibrate a measuring instrument at the far end. The method steps include: · converting the calibration signal to generate a calibration signal; A first digital signal; providing at least one correction value to modify the first digital signal to generate a second digital signal; passing the second digital signal to the remote end; converting the second digital signal at the remote end to an analog Correction signal; convert the analog right signal into the third digital signal; return the third digital signal, borrow

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In order to adjust the difference between the first and second # less than -pre: Γ, the difference between the third and the first digital signal is positive, and the stable correction signal is approached to the stable analog regulator; provide-signal: = The number is used to calibrate the measuring instrument to set the analog calibration 1 "You price first two: measure the positive signal of the board and the measurement difference of the stable signal; integer ': = set the analog calibration signal and the calibration signal Measure the difference f α and repeat the above steps until 4 miles, the difference is less than another preset value. J. Tomoto ^ The fourth feature is a method of establishing remote correction, wherein the back-end correction is a pair of correction signals One of the measuring instruments at the far end is calibrated. The method steps include: transmitting the correction signal through a digital conversion process = the far end, and converting it back to an analog correction signal through analog conversion; The digital conversion process is adjusted until the analog calibration signal $ becomes a stable analog calibration signal that approximates the calibration signal, wherein the stable analog calibration signal is used to calibrate the measuring instrument. Λ A fifth feature of the present invention is a setup distance End-pass method, where The remote transmission is used to transmit an analog signal to a remote end. The method steps include: converting the analog signal to generate a first digital signal; providing at least one correction value to correct the first digital signal to generate a first Two digital signals; passing the second digital signals to the remote end; converting the second digital signals at the remote end to an analog analog signal; converting the analog analog signals to a third digital signal; returning the third digital signal To adjust the second digital signal so that the difference between the third and first digital signals is less than a preset value, so that the analog analog signal approaches a stable analog analog signal; a signal measuring device is provided to measure separately The analog signal, and the stable analog analog signal

0699-6114TV.ptd Page 8 H // J 丄 0 丄 V. Inventive Note (5), and based on the stable analog analog signal to another preset value. And repeating the return step until the " sixth feature of the present invention is to establish a remote end, the remote transmission system is used to transmit an analog, including: the analog signal with a _ digital spin drag W 2 β Haifang ^ ii bH M r, the bit conversion process is transmitted to the remote end, and the digital conversion process is adjusted by analog conversion bismuth back to an analog analog, until the analog == of the signal-stable analog analog signal. The pseudo-analog ^ becomes the seventh feature of the present invention. The method of the calibration device is described as follows: 1. The patent scope is applied to measure the calibration signal / step, respectively. Provide-the signal is calibrated based on the stability simulation: Analog correction signal setting value. Repeat the above steps until the measurement difference is small. The eighth feature of the present invention is the method of transmitting the device, such as the patent scope device described in the § monthly patent scope, to measure the analogy, respectively. The steps include: providing-signal basis The stable analog analog two, f, the stable analog analog signal, and other correction values; and the check-through, the measured difference from the analog signal set value. Repeat the above steps until the measurement difference is small [just difference 丨 丨 difference "'Among them: step package • signal near the first measurement number of this type, and adjust the measurement number of a pre-item 8 measurement, and adjust A brief description of a pre-illustration:

Easy to understand, 475181

In conjunction with the attached drawings, the detailed description is as follows: 5. Description of the invention (6) A preferred embodiment is given below: Fig. 1 is a structural diagram showing a transmission device according to an embodiment of the present invention. FIG. 2 shows the architecture of a calibration device according to an embodiment of the present invention. Figure 3 illustrates the method for establishing remote delivery of the present invention. ° Fig. 4 shows a detailed method of establishing a remote transmission of the present invention. Fig. 5 shows a method of correcting a delivery device of the present invention. Explanation of symbols 100 ~ transmission device; 200 ~ correction device; 10 ~ first conversion unit; 30 ~ second conversion unit; 50 ~ communication device; 7〇 ~ measuring instrument; CS ~ correction signal; DS2 ~ second Digital signal; C Ε ~ correction value; SCS ~ analog correction signal; SSCS ~ stable analog correction signal 20 ~ feedback control unit; 40 ~ third conversion unit; 60 ~ corrector; AS ~ analog signal; DS first Digital signal; DS3 ~ third digital signal; SAS ~ analog analog signal; SSAS ~ stable analog analog signal implementation details: As shown in Figure 1, this is the architecture of the present invention. Illustration. In order to maintain the accuracy of the obtained corrector, the length of the connecting line of the output voltage of the correction voltage supplied by the listener φ ^ + inch must be less than one kilometer:

V. Description of the invention (7) ^ Propose-transfer split 1GG for long distance transfer 1 ratio

As a result, the signal is extremely dangerous. 〇, you can use // less than the predetermined value. By this way, the output of the terminal of the measuring instrument is corrected to the first conversion sheet 5 and the terminal is to be corrected. " The transfer device 100 packs 3 yuan. 'Twenty two: feedback control unit 2 °,-second conversion unit and second conversion unit 40. Voltage single i1. And the feedback control unit 20 is located to provide a correction '°° 〆 sub-device for analog and digital conversion (A / D, two nvert), its output is determined according to the externally provided reference signal (pass == voltage). The first conversion unit 10 converts the analog signal according to the first reference signal, and generates a corresponding first digital digit DS1. The feedback control unit 2 () corrects the digital digit according to at least one correction value ^ The signal DS1 generates a second digital signal DS2 to the second zone. The first zone and the second zone can have a considerable distance, such as from the United States to Japan; however, it can also be different in the same building. The first and second conversion units 30 and 40 are located in the second area. The second conversion unit 30 疋 converts the second digital signal DS2 according to the reference signal in the second range to generate a corresponding analog analog signal SAS; and the first The three conversion unit 40 converts the analog analog signal ^^ according to the reference signal in the third range, and generates a corresponding third digital signal DS3. The third digital signal DS3 is used as a feedback signal and returns the feedback control unit. 20. The correction value CE on which the feedback control unit 20 is based is explained below. The correction value CE is set to offset the above-mentioned reference signals of the first, second, and third ranges.

0699.6114TW.ptd Page 11 475181 V. Description of the invention (8) Error between (voltage). Ideally, analog and digital conversions with the same reference signal (voltage) do not need to consider the above-mentioned error problem; but in reality, the voltage source in the second region is different from the reference voltage in the first region. For example, if the two sets of voltages measured by the two parties are 5V for comparison, the 5V in the second zone may be 5.001V in the first zone. Therefore, when the digitally converted analog signal AS (that is, the first digital signal DS1) is output in the first area, the difference caused by different conditions at both ends can only be offset after the adjustment of the above-mentioned correction value. The correction value preferably includes a range ratio of the first, second, and third ranges to offset a signal increase or decrease caused by the conversion process; and includes a zero potential between the first, second, and third ranges. To correct the signal offset caused by the conversion process. In addition, 'to overcome the error caused by other factors (such as temperature, humidity, vibration, etc.), the feedback control unit 20 continuously feedbacks the third digital signal DS3' and adjusts the second digital signal j) S2 Even if the difference between the first and third f-bit signals DS1 and DS3 is smaller than the preset value, the analog analog signal SAS becomes a stable analog analog signal% approaching one of the analog signals. In addition, there is a communication device 50 for The first, second, and third digital signals are transmitted between the first and second zones. The communication device 50 is preferably an existing Internet system or a local area network. In addition, the The feedback control unit is preferably installed in a computer, even if it is in software form. Because the precise remote transmission can only rely on digital signals, the digital signals can only express the subjective voltage value of the ground, and cannot truly represent the ground. And another place 2: For the voltage value, the first zone cannot be paid by long-distance communication (including telephone inquiries) to obtain the values of the first, second, and third ranges relative to the first zone.

475181

This: The above-mentioned correction value ^ of the present invention must be the same signal measuring device oblique rain # μ h, and the input and output signals (ie, 该: Ϊ1 : Analog signal SAS) to perform multiple sets of measurements to estimate

= After the correction, K will fire the first F, goods _ to pass the analog signal to the first area "(provided that at the time of M, the unit devices in the second area are unchanged). —2 Picture: 'When the fork service is provided, a single signal V is generated with a signal; / The correction signal cs (usually the correction voltage iV ± 1) provided by the interpolator 60 is sent to the second area to be tested. At this time, The calibration device 200 of the present invention is called the stable analog calibration signal 200 in the stable analog device 200, which is used for calibration by a measuring instrument 70. In addition, other units are unchanged and will not be repeated here. When there are many customers, we will send someone to each customer to test in advance. For each client, a specific set of correction values will be established for future calibration services. When maintaining accuracy, periodically check, It is necessary to revise each correction value. The above-mentioned device of the present invention is based on the method proposed by the present invention. The following describes the method of establishing remote transmission proposed by the present invention. Please refer to the block diagram of FIG. 3. As previously mentioned The 'Xiao distal transmission system' is used to transmit a The analog signal AS goes to the remote end. The method steps include: (S1) transmitting the analog signal AS to the remote end through a digital conversion process and returning only one branch of the analog analog signal SAS through the analog conversion; and (S2) feedback The analog analog signal SAS adjusts the digital conversion process until the analog analog signal sas becomes

475181 V. Description of the invention (ίο) Approaching one of the analog signals to stabilize the analog analog signal SSAS. FIG. 4 illustrates the method for establishing remote transmission of the present invention in more detail. The method includes the steps of: (S1) converting the analog signal AS to generate a first digital signal DS1; (S2) providing at least one correction value CE, whereby Correct the first digital signal DS1 to generate a second digital signal DS2; (S3) pass the second digital signal DS2 to the remote end; (S4) convert the second digital signal DS2 at the remote end to an analog analog signal SAS; (S5) converts the analog analog signal SAS into a third digital signal DS3; (S6) feedbacks the third digital signal DS3 to adjust the second digital signal DS2 until the third and first digital signals The difference between DS3 and DS1 is less than a preset value, so that the analog analog signal SAS approaches a stable analog analog signal SSAS; (S7) Provide a signal measuring instrument to measure the analog signal AS and the stable analog analog signal separately. S ^ AS, and adjust the correction values according to a measured difference between the stable analog analog signal SSAS and the analog signal AS; and (s 8) repeat the above steps until the measured difference is less than another preset value. In addition, the present invention proposes a remote correction method using the above-mentioned remote transmission method. Among them, the above-mentioned calibration signal is used as the above-mentioned analog signal AS 丄, and the above-mentioned stable analogue analog signal SSAS is used to provide a remote calibration voltage of the instrument to be tested. The other parts of the far-end correction method are the same as the far-end transmission method, and are not repeated here. Furthermore, the present invention proposes that the correction value of the transmission device 100 = Γ Ϊ ′ is derived from the correction method proposed by the present invention, so as to correct the correction. 100. It includes the steps shown in Figure 5: (S1) Provide an information measuring device to measure the analog signal AS and the stable analog analog ratio respectively.

V. Description of the invention (11) a: n ?: and adjust the corrections according to the difference between the stable analog analog signal ssas and the analog signal AS = *; and (S2) repeat the above steps until the difference between the measured values is less than A preset value. Advantageously, the correction device 200 of the transmission device 100 can also use the above method. 42 :: Chinese 'uses the correction signal as the analog signal and uses': = j to predict; ^ positive signal sscs as a stable simulation. Analog signal. The rest is the same method and it is not good to repeat it. To predict the device and method of the month, you can perform remote measurement. Only the data with positive values at the terminal to be tested can be transmitted through a communication system, such as the Internet. You do not need to carry the measurement instrument for each calibration. This may require many costs such as a positive θ dragon t force, a gap between the two. The present invention is particularly important for units that frequently require positive s-measuring instruments. Limitation: = Ming, using specific examples to explain such as 1, but it is not useful; any person skilled in this art, without departing from the spirit of the present invention and interfering with β, can make changes and scope as the appended Please define the scope of the patent I thinning this month

Claims (1)

4 / M81 6. Scope of Patent Application-Device suitable for calibrating the first £ 1 measuring instrument with a calibration signal in the first zone. The calibration device includes: a signal generating unit that generates the calibration signal; k ... if replacement Single 70 'Based on the reference signal of the first range, the positive signal is converted to generate a corresponding first digital signal; ... the feedback control unit' corrects the first digital signal according to at least one correction value, and generates a second Digital signal; a second f-changing unit, which converts the second digital signal according to the reference signal in the second range, and generates a corresponding analog correction signal; ^ two third f-changing unit, according to the reference signal in the third range, Converting the analog correction signal to generate a corresponding third digital signal; and wherein the feedback control unit adjusts the second digital signal L more continuously so that the difference between the first and third digital signals is smaller than a preset value, and Therefore, the analog calibration signal becomes a stable analog calibration signal approaching the calibration signal. The stable analog calibration signal is suitable for calibrating the measuring instrument. 2. The correction device according to item 1 of the scope of patent application, wherein the signal generating unit, the first conversion unit, and the feedback control unit are located in the first area, and the second and third conversion units are Located in the second district. 3. The correction device according to item 2 of the scope of patent application, further comprising a communication device, transmitting the first, second, and third digital signals in the first zone and the second zone. 4. The calibration device according to item 3 of the scope of patent application, wherein the communication device is an Internet system. 5 The correction device according to item 1 of the scope of patent application, wherein the repair 0699-61 HTW.ptd Page 16 475181 6. Scope of patent application Positive values include the ratio between the first, second, and third ranges. 6 · The correction device according to item 1 of the patent application range, wherein the correction value includes the mutual deviation between the first, second, and third reference signal ranges 0 7 · The correction according to item 1 of the patent application range Device, wherein the feedback control unit is set in a computer. 8. A transmission device for transmitting an analog signal from the first area to the second area. The transmission device includes: a first conversion unit that converts the analog signal according to the reference signal in the first range to generate a corresponding first signal; A digital signal; a feedback control unit that corrects the first digital signal according to at least one positive value to generate a second digital signal to the second area; a second conversion unit that converts according to a second range of reference signals The second digital signal generates a corresponding analog analog signal; a third conversion unit converts the analog analog signal according to a reference signal in the third range to generate a corresponding third digital signal; and wherein the feedback control unit Adjust the second digital signal more continuously until the difference between the wth and second digital signals is smaller than the preset value, so that the = analog analog signal becomes one of the analog signals. The analog analog signal is stable. Last name: The transmission device according to item 8 of Qianwei, wherein the first feedback control unit is provided in the first zone, and the first and second conversion units are provided in the second zone. Area. Dagger 1 0 · The transmission device as described in item 9 of the patent application, and more inclusive Page 17 VI. Scope of Patent Application The first enclosed signal device is the first, second, and third digital signals. The first 11 is transmitted between the daggers. If the scope of the patent application is No. 0, the communication device is an Internet system. The transmission device described in the above, wherein the positive value of item 8 in the scope of the patent application includes the first, [fish section—: the transmission device 'in which the repair ratio is 13 such as the range ratio between Shentie and M #. . Positive values include the first, second, and split positions, where the repairs are offset from one another by the heart. 14. The item 8 of the scope of patent application for granting control order it is set at the computer. "The transmission device 'where the Hui- / II Qili remote correction method'" in the remote correction is to use k-signal to calibrate one of the back-end measuring instruments, the method steps include dry conversion of the correction Generating a first number to provide at least-a correction value, thereby correcting the first signal to generate a second digital signal; passing the second digital signal to the remote end; converting the second digital signal at the remote end to An analog correction signal; converting the analog correction signal into a third digital signal; returning the second digital signal to adjust the second digital signal until the difference between the second and first digital signals is less than a preset value So that the positive signal of the analog board approaches a stable analog calibration signal, wherein the stable analog calibration signal is used to calibrate the measuring instrument; a signal measuring device is provided to measure the calibration signal and the stable signal respectively. 0699-6114TW.ptd Page 18 475181 VI. Patent application scope = No., and adjust these correction values according to the 1-measure difference between the stable analog correction signal and the correction signal; and 乂 ^ Repeat the above steps until the 4 test The difference is smaller than another preset value. A 16 · —A method for establishing remote calibration, wherein the remote calibration is to calibrate the remote-measurement instrument with a positive father, and the method steps include transmitting the calibration signal to a digital conversion process to The remote end is converted back to an analog correction signal by analog conversion; and ^ feedback the analog correction signal to adjust the digital conversion process until the intended correction signal becomes a stable analog correction signal close to one of the correction signal, where the The stable analog calibration signal is used to calibrate the measuring instrument. 17. · A method for establishing a remote transmission, wherein the remote transmission is used to transmit the analog signal to the back end. The method steps include: converting the analog signal to generate a first digital signal; providing at least one correction value, By modifying the first digital signal, a second digital signal is generated; the second digital signal is transmitted to the remote end; the second digital signal of the remote end is converted into an analog analog signal; the analog analog signal is converted into a first Three-digit signal; feedback the third Qin: bit signal to adjust the second digital signal so that the difference between the second and first digital signals is less than a preset value, so that the analog analog signal approaches a stable simulation Analog signal; provide a signal measuring device to measure the analog signal and the stable analog analog signal respectively, and according to the stable analog analog signal and the analog signal 0699-6114TlV.ptd Page 19 Ye / J 丄 (J 丄 叶 / J 丄 (J 丄 六 Applicable patent scope and number of measurement differences adjust these corrections and repeat the above steps until the amount is 18 ~ —A method for establishing remote transmission, which has a preset value of ^. To transmit 7 analog signals to the remote end, the method steps include hard and creep transmission, which converts the analog signal to a digital Korean. The analog analog signal is transmitted to the remote end, and the analog signal is converted to K :, and the digital conversion process is adjusted until the number. It is the analog signal-stable analog analog signal. It is a method of correction such as patent application, its steps Including: The calibration device provided in the first item provides a signal measuring device, which separately measures the analog calibration signal, and adjusts these corrections according to the measurement error of the jealousy slave signal and the stable signal. Repeat the above steps for the calibration signal and the calibration signal until the measurement = i, 20.-If the difference between the application for patent and patent application is less than-the pre-method, the steps include: providing a signal quantity for the transmission device described in item 8 Tester, points The analog analog signal is determined, and the corrections are adjusted according to the stable analog signal and the measured difference of the stable signal ^; the second analog analog signal and the analog signal repeat the above steps until the measured difference between J and ^ is less than-the preset value .