CN202511854U - Networked intelligent digital weighing sensor - Google Patents
Networked intelligent digital weighing sensor Download PDFInfo
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- CN202511854U CN202511854U CN2012200012912U CN201220001291U CN202511854U CN 202511854 U CN202511854 U CN 202511854U CN 2012200012912 U CN2012200012912 U CN 2012200012912U CN 201220001291 U CN201220001291 U CN 201220001291U CN 202511854 U CN202511854 U CN 202511854U
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Abstract
The utility model discloses a networked intelligent digital weighing sensor comprising an analog weighing sensor, a temperature sensor, an analog-to-digital converter, a digital data table unit, an information processing unit, a communication unit and a power supply module. The digital data table unit conforms to an IEEE1415.2 standard; the analog weighing sensor is used for collecting real-time temperature data; the analog-to-digital converter converts weight data and the real-time temperature data into corresponding digital signals; the information processing unit carries out compensation and calibration on the weight data and then carries out outputting; and the communication unit is provided with a communication interface compatible with an IEEE 1415.2 standard and a general serial interface. According to the above-mentioned technical scheme provided by the utility model, not only can a requirement of intelligent sensor independent interface by the IEEE1415.2 standard be met, but also problems of difficulty of precision improvement, low production efficiency and low yield and the like during the sensor manufacturing process can be solved. And besides, digital weighing sensors with identical production resolution ratios can be produced in a batch mode.
Description
Technical field
This is novel to relate to a kind of LOAD CELLS, relates in particular to a kind of network-enabled intelligent digital weighing sensor
Background technology
LOAD CELLS is the most critical parts that constitute electronic scale and various weighing systems.Its effect is to convert weight into electronic signal, so it has determined the precision of electronic scale and weighing system.The intellectuality of LOAD CELLS and networking are developing direction, are the requirements of modern information technologies development.Networked smart sensor not only can bring convenience to the user, can have range of application widely simultaneously, and more helps the development of himself.
LOAD CELLS is main with the simulation LOAD CELLS at present, and digital weighing sensor is auxilliary.
The simulation LOAD CELLS generally comprises elastic body and foil gauge; The Item Weight of weighing makes elastic body produce distortion; Foil gauge converts this distortion into resistance, if on foil gauge, add driving voltage, then resistance just can convert voltage into; When using, need to convert the voltage signal of analog quantity to digital signal through analog to digital converter, could be through various functions such as computing, the weight demonstration of calibrating realization electronic scale and weighing system, transmission, printings.The precision of simulation LOAD CELLS depends mainly on the starting material and the production technology of elastic body and foil gauge.Will the higher simulation LOAD CELLS of production precision; As can be applied to the C3 level of commerce and trade and industry measurement; Need carry out various compensation and adjustment in process of production, like the standardization adjustment of exporting adjustment, nonlinear compensation, the compensation of sensitivity temperature, sensitiveness standard adjustment, output resistance and input resistance at zero temperature compensation, zero point etc.Therefore the precision of not only simulating LOAD CELLS itself is difficult to improve, and production efficiency is low, and yield rate is low.
Present digital weighing sensor is on existing simulation LOAD CELLS, to add analog to digital converter mostly, or adds MCU (being generally single-chip microcomputer) and form.This digital weighing sensor can carry out sensitivity calibration to the simulation LOAD CELLS; Bring convenience to the user; Also can carry out nonlinear compensation to improve linearity, simulate the problem that LOAD CELLS is produced, can not improve the precision of sensor on the whole but still can't resolve.Although this in addition digital weighing sensor has MCU, also storer can be arranged, owing to there is not the intelligent and networked application function of self-identifying, plug and play, can not accomplish arbitrarily to substitute.
The utility model content
This novel technical matters that mainly solves provides a kind of LOAD CELLS, and it has solved the problem of traditional LOAD CELLS on producing, and improves the precision of sensor on the whole, uses the present technique scheme, can improve production efficiency of products, improves yield rate.The requirement of the compatible IEEE1415 standard of this novel LOAD CELLS ability; Take into account the application mode of LOAD CELLS in existing weighing system and electronic scale; Overcome the defective that communication and various parameter can not be discerned automatically in the prior art; Function with plug and play adapts to the requirement of different user to digital weighing sensor.
For solving the problems of the technologies described above; A technical scheme of this novel employing is: a kind of network-enabled intelligent digital weighing sensor is provided, comprises simulation LOAD CELLS, temperature sensor, analog to digital converter, electronic data sheet unit, information process unit, communication unit and power module; Said electronic data sheet unit meets the IEEE1415.2 standard; The various supplemental characteristics of storage are deposited in the address of regulation by the regulation agreement, and the data of electronic data sheet comprise self-identifying data, characteristic parameter, calibration data, offset data and the required communications parameter of realization communication function; Said simulation LOAD CELLS is made up of elastic body and foil gauge, tested gravimetric value is converted to the electric signal of simulation; Said temperature sensor provides the real time temperature data for the real time temperature characteristic compensation of realizing the simulation LOAD CELLS; Said temperature sensor is analog temperature sensor or digital sensor; The analog electrical signal that said analog to digital converter will be simulated LOAD CELLS and analog temperature sensor generation converts digital signal respectively to; The real time temperature data that said information process unit is used for providing according to calibration data, offset data, temperature sensor that the electronic data sheet unit is stored, the weight data after the analog to digital conversion is compensated and calibrate computing, the characteristic parameter that is finally stored by the electronic data sheet unit changes the corresponding data of weight into; Said communication unit is provided with the TII interface that meets the IEEE1451.2 standard, configurable wired serial communication interface of while or wireless communication interface, and said communication unit receives order and transmission information and data by the communications parameter of electronic data sheet unit storage; Said power module is the plug and play power supply, is used to above-mentioned each unit and circuit supply.
Wherein, the electronic data sheet unit adopts the nonvolatile memory stores data, and said nonvolatile memory is eeprom memory, FLAH storer or ferroelectric memory; Said storer is independent IC chip or is integrated in the non-volatile memory cell in MCU, ARM, the SOC chip.
Wherein, constitute the self-identifying data of electronic data sheet, be used to realize the self-identifying function, comprise type of sensor, manufacturer, model, manufacturing numbering.
Wherein, constitute the sensor characteristics parameter of electronic data sheet, comprise transducer range, sensitivity (output number during full scale), precision.
Wherein, the calibration data of formation electronic data sheet unit comprises the sensitivity calibration data.
Wherein, offset data comprises the linear compensation data of scope offset data at zero point, zero temperature compensation data, sensitivity temperature offset data and sensitivity.
Wherein, the communications parameter of formation electronic data sheet unit comprises communication and required communication interface mode, baud rate, the channel parameters of networked function.
Wherein, described wire communication interface is TTL, RS232, RS485 serial communication interface, ICP/IP protocol interface or USB interface; Described wireless communication interface is radio frequency, bluetooth or GPRS.
This novel beneficial effect is:
This new-type networkization intelligent weighing sensor, the analog signal digital of not only LOAD CELLS being exported.The compatible IEEE1451.2 agreement of the communication interface of communication unit satisfies the requirement of network-enabled intelligent LOAD CELLS stand-alone interface (TII), has plug-and-play feature.The compatibility of communication unit network interface; Make this LOAD CELLS can add in the network of digital implementation and measuring system easily; Digital implementation or measuring system can be converted into gravimetric value or carry out computing, record, printing with it by the next real-time weight data of discerning this LOAD CELLS and directly utilizing this sensor to provide of the parameter that electronic data sheet provides at once.。
The electronic data sheet unit stores the self-identifying data in addition, and this network-enabled intelligent digital weighing sensor can plug and play, self-identifying, and every the sensor in networking back can upgrade through network automatically.In addition; In process of production, through sensor network, each parameter that can adjust every sensor in batches compensates its internal resistance; And then in the process of producing, can compensate or adjust characteristics such as temperature, linearity, sluggishness, sensitivity in bulk; Thereby can improve the precision and the homogeneity of product of sensor output, and enhance productivity, solved problems such as the precision of simulating in the LOAD CELLS production is difficult to improve, production efficiency is low, yield rate is low.The parameter of all compensation of every sensor or adjustment can be able to preserve file simultaneously aborning in addition.
The electronic data sheet unit is embedded in the network-enabled intelligent LOAD CELLS in addition, along with sensor moves together, makes all required information of sensor always can obtain at any time.Temperature compensation data is stored in the storage unit, thereby does not need traditional temperature compensating element, reduced the direct material cost of sensor; Be beneficial to automated production; Enhance productivity, can also improve the production precision, and can produce the identical digital weighing sensor of resolution in batches.
This new-type networkization intelligent weighing sensor also has the communication interface of abundant flexible configuration on demand, has taken into account existing traditional weighing system and the application mode in the electronic scale.
Description of drawings
Fig. 1 is this novel structural principle block diagram;
Fig. 2 is a kind of embodiment structural drawing that this novel employing single-chip microcomputer or ARM form system;
Fig. 3 is the another kind of embodiment structured flowchart that this novel employing special IC SOC forms system.
Embodiment
By specifying this novel technology contents, structural attitude, realized purpose and effect, know clearly below in conjunction with embodiment and conjunction with figs. and to give explanation.
A kind of network-enabled intelligent digital weighing sensor that provides in this new embodiment comprises simulation LOAD CELLS, temperature sensor, analog to digital converter, electronic data sheet unit, information process unit, communication unit and power module.
Consult Fig. 1, the output terminal of said simulation LOAD CELLS, temperature sensor all connects the input end of said analog to digital converter; Said analog to digital converter is connected with said information process unit; Said information process unit is connected with said communication unit; Said message unit is connected with said electronic data sheet; Said power module is connected with above-mentioned each module, and each unit and device that can only digital weighing sensor for networking provide electric energy.
Said electronic data sheet unit meets the IEEE1415.2 standard; The various supplemental characteristics of storage are deposited in the address of regulation by the regulation agreement, and the data of electronic data sheet comprise self-identifying data, characteristic parameter, calibration data, offset data and the required communications parameter of realization communication function; Said simulation LOAD CELLS is made up of elastic body and foil gauge, tested gravimetric value is converted to the electric signal of simulation; Said temperature sensor provides the real time temperature data for the real time temperature characteristic compensation of realizing the simulation LOAD CELLS; Temperature sensor can be analog temperature sensor; It can also can be integrated on the foil gauge for sensor independently, and the analog electrical signal of its generation is changed by analog to digital converter and offered information process unit again; Temperature sensor also can be digital sensor, directly temperature data is passed to information process unit; The analog electrical signal that said analog to digital converter will be simulated LOAD CELLS and analog temperature sensor generation converts digital signal respectively to; The real time temperature data that said information process unit is used for providing according to calibration data, offset data, temperature sensor that the electronic data sheet unit is stored, the weight data after the analog to digital conversion is compensated and calibrate computing, the characteristic parameter that is finally stored by the electronic data sheet unit changes the corresponding data of weight into; Said communication unit is provided with the TII interface that meets the IEEE1451.2 standard, configurable wired serial communication interface of while or wireless communication interface, and said communication unit receives order and transmission information and data by the communications parameter of electronic data sheet unit storage; Said power module is the plug and play power supply, is used to above-mentioned each unit and circuit supply.
In the present technique scheme, said electronic data sheet unit meets the IEEE1451.2 standard, and the various supplemental characteristics of storage are deposited in the address of regulation by the regulation agreement.The regulation agreement is the agreement according to user's needs setting.Constitute the LOAD CELLS self-identifying data of electronic data sheet unit; The type identification and the property content that comprise LOAD CELLS; Be used to realize the self-identifying function; Comprise type of sensor, manufacturer, model, manufacturing numbering, also comprise and realize required transducer range, sensitivity, the precision of plug-and-play feature.The protocol adaptation of this self-identifying function and regulation could realize self-identifying when agreement up to specification.
Concrete, the sensor characteristics parameter of formation electronic data sheet comprises transducer range, exports number, precision when sensitivity is full scale; The communications parameter that constitutes electronic data sheet comprises communication and required communication interface mode, baud rate, the channel parameters of networked function; The calibration data that constitutes the electronic data sheet unit comprises the sensitivity calibration data; Offset data comprises the linear compensation data of scope offset data at zero point, zero temperature compensation data, sensitivity temperature offset data and sensitivity.
The communication unit of LOAD CELLS is provided with the TII interface that meets the IEEE1451.2 standard; Configurable wired serial communication interface of while or wireless communication interface, said communication unit receives order and transmission information and data by the communications parameter of electronic data sheet unit storage; Use this communication unit; Make this digital weighing sensor can select wired or wireless communication modes; This communication interface can be arranged to wire communication interface or wireless communication interface, wherein flexibly according to user's needs; The wire communication interface can be TTL, RS232, RS485 serial communication interface, ICP/IP protocol interface or USB interface; Wireless communication interface can be radio frequency, bluetooth or GPRS.The compatibility of communication interface can adapt to the requirement of diverse network standard, makes this LOAD CELLS realize networked demand.
In the technical scheme of this new embodiment, the electronic data sheet unit adopts the nonvolatile memory stores data, and said nonvolatile memory is eeprom memory, FLAH storer or ferroelectric memory; Said storer is independent IC chip or is integrated in the non-volatile memory cell in MCU, ARM, the SOC chip.Described independent IC chip is eeprom memory, FLAH storer or ferroelectric memory; The electronic data sheet unit is embedded in the network-enabled intelligent digital weighing sensor; Move together with sensor; Make all required information of sensor always can obtain at any time, thereby satisfy the demand that the simulation LOAD CELLS is realized plug-and-play feature.
Below provide the specific embodiment of present technique scheme:
See also Fig. 2, a preferred implementation of this new embodiment, said electronic data sheet unit, temperature sensor, communication unit are the unit with identical function that is integrated among MCU or the ARM.Adopt this technical scheme, simplified the technical design scheme of network-enabled intelligent digital weighing sensor, reduced the volume of LOAD CELLS electronic circuit, help producing in batches the LOAD CELLS of intelligent networkization.
See also Fig. 3; Adopt integrated circuit SOC to form the another kind of embodiment of system in this new embodiment; The technical scheme that in this new embodiment, is adopted is; Said information process unit is SOC, and said electronic data sheet unit, temperature sensor, communication unit are integrated on the said SOC.Adopt this technical scheme, make the integrated level of LOAD CELLS inner structure higher, convenient production, installation are beneficial to batch process, can also improve whole LOAD CELLS stability in use in addition.
In this new embodiment, described network-enabled intelligent digital weighing sensor, the analog signal digital of not only LOAD CELLS being exported.Because the compatible IEEE1451.2 agreement of the communication interface of communication unit satisfies the requirement of network-enabled intelligent LOAD CELLS stand-alone interface (TII), and then makes the LOAD CELLS of this new embodiment have plug-and-play feature.In addition; The compatibility of communication unit network interface; Make this LOAD CELLS can add in the network of digital implementation and measuring system easily; Digital implementation or measuring system can be converted into gravimetric value or carry out computing, record, printing with it by the next real-time weight data of discerning this LOAD CELLS and directly utilizing this sensor to provide of the parameter that electronic data sheet provides at once.。And then make the producer in the process of producing, can compensate or adjust characteristics such as temperature, linearity, sluggishness, sensitivity in bulk; Thereby can improve the precision and the homogeneity of product of sensor output; Enhance productivity, solved problems such as the precision of simulating in the LOAD CELLS production is difficult to improve, production efficiency is low, yield rate is low.The abundant communication interface that can dispose has on demand been taken into account existing traditional weighing system and the application mode in the electronic scale.The electronic data sheet unit is embedded in the sensor in addition, along with sensor moves together, makes all required information of sensor always can obtain at any time.Temperature compensation data is stored in the electronic data sheet; Thereby do not need traditional temperature compensating element; Reduced the direct material cost of sensor, be beneficial to automated production, enhanced productivity; The production precision can also be improved, and the identical digital temperature sensor of resolution can be produced in batches.
The above is merely this novel embodiment; Be not so this novel claim of restriction; Every equivalent structure or equivalent flow process conversion that utilizes this novel instructions and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in this novel scope of patent protection.
Claims (2)
1. a network-enabled intelligent digital weighing sensor is characterized in that, comprises simulation LOAD CELLS, temperature sensor, analog to digital converter, electronic data sheet unit, information process unit, communication unit and power module;
Said simulation LOAD CELLS is made up of elastic body and foil gauge, tested gravimetric value is converted to the electric signal of simulation;
Said temperature sensor provides the real time temperature data for the real time temperature characteristic compensation of realizing the simulation LOAD CELLS; Said temperature sensor is analog temperature sensor or digital sensor;
The analog electrical signal that said analog to digital converter will be simulated LOAD CELLS and analog temperature sensor generation converts digital signal respectively to;
The real time temperature data that said information process unit is used for providing according to calibration data, offset data, temperature sensor that the electronic data sheet unit is stored, the weight data after the analog to digital conversion is compensated and calibrate computing, the characteristic parameter that is finally stored by the electronic data sheet unit changes the corresponding data of weight into;
Said communication unit is provided with the TII interface that meets IEEE 1451.2 standards, configurable wired serial communication interface of while or wireless communication interface, and said communication unit receives order and transmission information and data by the communications parameter of electronic data sheet unit storage;
Said power module is the plug and play power supply, is used to above-mentioned each unit and circuit supply.
2. network-enabled intelligent digital weighing sensor according to claim 1; It is characterized in that: the electronic data sheet unit adopts the nonvolatile memory stores data; Said nonvolatile memory is eeprom memory, FLAH storer or ferroelectric memory, and said storer is independent IC chip or is integrated in the non-volatile memory cell in MCU, ARM, the SOC chip.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200012912U CN202511854U (en) | 2012-01-04 | 2012-01-04 | Networked intelligent digital weighing sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200012912U CN202511854U (en) | 2012-01-04 | 2012-01-04 | Networked intelligent digital weighing sensor |
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| CN202511854U true CN202511854U (en) | 2012-10-31 |
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| CN2012200012912U Expired - Lifetime CN202511854U (en) | 2012-01-04 | 2012-01-04 | Networked intelligent digital weighing sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538918A (en) * | 2012-01-04 | 2012-07-04 | 深圳市芯海科技有限公司 | Networking intelligent digital weighing sensor |
| CN111885530A (en) * | 2020-07-21 | 2020-11-03 | 成都英孚克斯科技有限公司 | Weighing data acquisition unit and method based on data integration encryption |
-
2012
- 2012-01-04 CN CN2012200012912U patent/CN202511854U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538918A (en) * | 2012-01-04 | 2012-07-04 | 深圳市芯海科技有限公司 | Networking intelligent digital weighing sensor |
| CN111885530A (en) * | 2020-07-21 | 2020-11-03 | 成都英孚克斯科技有限公司 | Weighing data acquisition unit and method based on data integration encryption |
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| C14 | Grant of patent or utility model | ||
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Address after: 518000, A building, block 9, garden city digital garden, 1079 Nanhai Road, Guangdong, Shenzhen, Nanshan District Patentee after: Xinhai Science and Technology (Shenzhen) Co., Ltd. Address before: 518000, A building, block 1079, garden city digital garden, 9 Nanhai Road, Shekou, Guangdong, Shenzhen, Nanshan District Patentee before: Xinhai Science and Technology Co., Ltd., Shenzhen City |
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Granted publication date: 20121031 |
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| CX01 | Expiry of patent term |