WO2007085120A1 - Appareil électronique combiné de pondération pour éther net - Google Patents

Appareil électronique combiné de pondération pour éther net Download PDF

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Publication number
WO2007085120A1
WO2007085120A1 PCT/CN2006/000157 CN2006000157W WO2007085120A1 WO 2007085120 A1 WO2007085120 A1 WO 2007085120A1 CN 2006000157 W CN2006000157 W CN 2006000157W WO 2007085120 A1 WO2007085120 A1 WO 2007085120A1
Authority
WO
WIPO (PCT)
Prior art keywords
pin
ethernet
chip
converter
load cell
Prior art date
Application number
PCT/CN2006/000157
Other languages
English (en)
Chinese (zh)
Inventor
Xiongyue Sun
Tao Liu
Naike Zhang
Original Assignee
Chengdu Huoan Measure Technical Center
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu Huoan Measure Technical Center filed Critical Chengdu Huoan Measure Technical Center
Priority to PCT/CN2006/000157 priority Critical patent/WO2007085120A1/fr
Priority to DE212006000011U priority patent/DE212006000011U1/de
Publication of WO2007085120A1 publication Critical patent/WO2007085120A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
    • G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
    • G01G23/3728—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means
    • G01G23/3735—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means using a digital network

Definitions

  • the utility model relates to a weighing technology device, in particular to an Ethernet network combined electronic weighing instrument. current technology
  • the conventional electronic weighing instrument superimposes the analog signal of the load cell and converts it into a digital signal for processing by an A/D analog-to-digital converter.
  • the analog signal and the transmission circuit have poor anti-interference ability, and it is not convenient to detect the condition of each sensor.
  • the debugging of the electronic weighing instrument is troublesome.
  • the digital weighing instrument combined with the electronic weighing instrument outputs the RS232 serial interface signal, and the speed is slow. Generally, it can only reach 9600bpS, and the networking is inconvenient. It can't adapt to the high-speed dynamic weighing and high-precision real-time weighing. Summary of the invention
  • the Ethernet integrated electronic weighing instrument comprises a power source and a load cell set with an IP address, wherein the power source is a bridge power source and a power supply source,
  • the weight sensor is a resistance strain sensor
  • the Ethernet combined electronic scale further includes a conversion board or a conversion box that can convert the analog signal output by the sensor into a digital signal, wherein: the power source is respectively connected to the load cell and the conversion board Or a conversion box, the analog signal output by the load cell is connected to the signal input end of the conversion board or the conversion box through a cable, and the output signal of the conversion board or the conversion box is connected to the Ethernet hub or the switch through the network cable, and then through the network.
  • the transmission line or wireless network card is connected to a computer or Ethernet dedicated weighing instrument.
  • the conversion board or conversion box includes an operational amplifier, an A/D converter, a logic controller, an Mcu microcontroller or a DSP digital signal processor, a program memory, an Ethernet network controller, and a signal input terminal of the operational amplifier
  • the load cell signal output terminal with the IP address is connected, and the signal output terminal of the operational amplifier is connected to the Mcu microcontroller or the DSP digital signal processor via the A/D converter, the Mcu micro
  • the output signal of the controller or the DSP digital signal processor is also transmitted to the logic controller and the program memory while being output to the Ethernet controller, and can receive the return data from the program memory, and the logic controller is respectively associated with A
  • the /D converter, Mcu microcontroller or DSP digital signal processor is connected to the Ethernet controller, receiving data from the Mcu microcontroller or DSP digital signal processor, and simultaneously outputting control signals to the A/D converter and the Ethernet
  • the Ethernet integrated electronic weighing instrument of the utility model has an IP address for each weighing sensor, and the sensor can be remotely patrolled and the parameters can be corrected. Angle and calibration can be tested and corrected during verification and use.
  • the original parameters of the load cell are input through the Ethernet network to ensure that the overall weighing data of the electronic weighing instrument is unchanged.
  • a set of weighing software is provided by the manufacturer, and the user can combine the weighing sensors into various electronic weighing instruments.
  • the circuit board that can convert the analog signal of the load cell into an Ethernet signal is assembled in the load cell.
  • the analog signal output by the load cell can be passed.
  • the cable is transferred to the converter box and converted into an Ethernet signal output.
  • the Ethernet electronic weighing instrument of the utility model has a transmission rate of up to 10 Mbps, and is suitable for weighing under dynamic, static and high-speed conditions, such as: railway scale, truck scale, and other electronic scales, especially suitable for high-speed dynamic measurement such as: dynamic railway scale, dynamic truck scale railway trucks with ultra-offset detection devices. Since the speed of conversion and transmission is greatly increased, the amount of sampled data is correspondingly increased, and the weighing accuracy of the electronic weighing instrument is also greatly improved.
  • FIG. 1 is a schematic structural view of an Ethernet-connected electronic weighing instrument of the present invention.
  • FIG. 2 is a schematic block diagram of an Ethernet complex electronic weighing instrument of the present invention.
  • Fig. 3 is a schematic diagram showing the structure and structure of a bridge type Ethernet load cell of the Ethernet integrated electronic weighing instrument of the present invention.
  • FIG. 4 is a schematic structural view of a column type Ethernet load cell of the Ethernet integrated electronic weighing instrument of the present invention.
  • FIG. 5 is a schematic structural view of a plug-in Ethernet load cell of the Ethernet integrated electronic weighing instrument of the present invention.
  • 6 is a circuit diagram of a load cell of the Ethernet integrated electronic weighing instrument of the present invention.
  • 7 is an operational amplifier circuit diagram of the Ethernet complex electronic weighing instrument of the present invention.
  • 8 is a circuit diagram of an A/D conversion of the Ethernet integrated electronic weighing instrument of the present invention.
  • FIG. 9 is a circuit diagram of a logic controller of the Ethernet integrated electronic weighing instrument of the present invention.
  • FIG. 10 is a circuit diagram of an Mcu microcontroller or a DSP digital signal processor and a program memory of the Ethernet integrated electronic weighing instrument of the present invention.
  • FIG. 11 is a circuit diagram of an Ethernet network controller of the Ethernet integrated electronic weighing instrument of the present invention. detailed description
  • the Ethernet integrated electronic weighing instrument of the present invention comprises a power source 1 and a load cell 2 set with an IP address, wherein the power source 1 is a bridge power source and a power supply source, and the load cell 2 Is a resistance strain sensor; the Ethernet complex electronic scale further includes a conversion board or a conversion box 3 that can convert the analog signal output by the sensor 2 into a digital signal, wherein: the power source 1 is connected to the load cell 2 and a conversion board or a conversion box 3, the analog signal outputted by the load cell 2 is connected to the signal input end of the conversion board or the conversion box 3 through a signal line cable, and the output signal of the conversion board or the conversion box 3 passes through the network line 10 and the ether
  • the network hub or switch 11 is connected, and is connected to a computer or Ethernet dedicated weighing instrument 13 through a network transmission line 12 or a wireless network card.
  • the load cell 2 with the IP address set therein may be a bridge type, a column type load cell, or a plug-in type load cell or the like, and the number thereof is at least one.
  • the number of load cells 2 described above is 16, which together comprise a scale body and a sensor array 15, as shown by the dashed box in Fig. 1.
  • FIG. 2 It includes an operational amplifier 4, an A/D converter 5, a logic controller 6, a Mcu microcontroller or a DSP digital signal processor 7, and a program memory 8.
  • the Ethernet controller 9 the signal input end of the operational amplifier 4 is connected to the signal output end of the load cell 2 with the IP address set, and the signal output end of the operational amplifier 4 passes through the ⁇ / ⁇ converter 5 and
  • the Mcu microcontroller or the DSP digital signal processor 7 is connected, and the output signal of the Mcu microcontroller or the DSP digital signal processor 7 is also transmitted to the logic controller 6 and the program while being output to the Ethernet controller 9 In the memory 8, and can receive return data from the program memory 8, the logic controller 6 and A/D respectively
  • the converter 5, the Mcu microcontroller or the DSP digital signal processor 7 is connected to the Ethernet controller 9, receives data from the Mcu microcontroller or the DSP digital signal processor 7, and simultaneously outputs a control signal to the A/D converter.
  • the signal output end of the Ethernet controller 9 is connected to the network cable 10.
  • the conversion plates 3 are respectively assembled in the bridge type and column load cell 2, and are connected to an Ethernet switch or hub 11 through an outgoing cable.
  • the converter box 3 is connected to the load cell 2 via a cable 14, and is connected to an Ethernet switch or hub 11 via an outlet cable.
  • the operational amplifier circuit of the operational amplifier 4 is composed of a 12V power supply, an INA128 chip, and a resistor R19.
  • the logic controller 6 is a PLD device, and the digital signal of the Mcu microcontroller or the DSP digital signal processor 7 is used.
  • the processing circuit is composed of a Mcu microcontroller or a DSP digital signal processor chip and a power supply 1
  • the program storage circuit of the program memory 8 is composed of a program memory chip and a power supply 1.
  • the first pin of the load cell 2 is connected to the positive pole of the power supply 1
  • the second leg is connected to the second leg of the chip INA128 of the operational amplifier 4
  • the third leg is grounded
  • the 4th pin of the 4 chip INA128 is connected.
  • the operational amplifier circuit of the operational amplifier 4 is composed of a 12V power supply, an INA128 chip, and a resistor R19.
  • the seventh pin of the chip INA128 is connected to the positive pole of the 12V power supply, and the fourth pin is connected to the 12V power supply.
  • the negative pole, the first leg and the eighth leg are connected in parallel with R19, the second leg is connected to the second leg of the load cell 2, the third leg is connected to the fourth leg of the load cell 2, the fifth leg is grounded, and the sixth leg is connected in series.
  • R1 is followed by pin 9 of A/D converter 5.
  • the conversion circuit of the ⁇ / ⁇ converter 5 is composed of an A/D converter chip, a resistor R1, and a capacitor C1, and the 9th pin of the A/D converter chip is connected in series with the resistor R1.
  • the 11th pin of the Mcu microcontroller or DSP digital signal processor chip is connected to the 5th pin of the program memory chip.
  • the 13th pin is connected to the positive terminal of the power supply 1
  • the 14th pin is connected to the 8th pin of the program memory chip
  • the 12th pin is grounded
  • the 4th, 5th, 6th, and 7th pins are respectively connected to the control chip of the Ethernet controller 9 2, 3, 6 feet are connected.
  • FIG. 10 In the program memory 8: the sixth leg of the program memory chip is connected to the positive terminal of the power supply 1, the seventh pin is grounded, the fifth pin is connected with the Mcu microcontroller or the DSP digital signal.
  • the 11th pin of the processor chip is connected, and the 8th pin is connected to the 14th pin of the Mcu microcontroller or KSP digital signal processor chip.
  • the Ethernet integrated electronic weighing instrument of the utility model is an electronic weighing instrument composed of one or more weighing sensors 2 or/and the conversion box 3 set with an IP address, and the working process is as follows: The analog signal of the load cell 2 on the system under test is output to the 2nd and 3rd pins of the operational amplifier 4 via the 2nd and 4th pins, amplified by the operational amplifier 4, and output to the A/D analog-to-digital converter through the 6th pin.
  • the Ethernet controller 9 is sent to a computer or Ethernet dedicated weighing instrument 13 with an Ethernet hub or switch.
  • the Ethernet integrated electronic weighing instrument of the utility model has an IP address for each load cell 2, and the sensor 2 can be remotely patrolled and the parameters can be corrected. The angular difference and calibration can be tested and corrected during verification and use.
  • the original parameters of the load cell 2 are input through the Ethernet network to ensure the electronic scale
  • the overall weighing data is unchanged.
  • a set of weighing software is provided by the manufacturer, and the user can combine the load cells 2 into various electronic scales.
  • the circuit board 3 which can convert the analog signal of the load cell into an Ethernet signal, is assembled in the load cell 2.
  • the load cell can be used.
  • the output analog signal is transmitted to the converter box 3 through the cable 14 and converted into an Ethernet signal output.
  • the Ethernet electronic weighing instrument of the utility model has a transmission rate of up to 10 Mbps, and is suitable for weighing under dynamic, static and high-speed conditions, such as: railway scale, truck scale, and other electronic scales, especially suitable for high-speed dynamic measurement such as: dynamic railway scale, dynamic truck scale railway trucks with ultra-offset detection devices. Since the speed of conversion and transmission is greatly increased, the amount of sampled data is correspondingly increased, and the weighing accuracy of the electronic weighing instrument is also greatly improved.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

L'invention porte sur un appareil électronique combiné de pondération pour éther net comprenant une alimentation et une cellule de charge à adresse IP. L'appareil de pondération comporte également une plaque/boîte de conversion en signaux numériques des signaux analogiques émis par le détecteur de charges. L'alimentation est reliée au détecteur de charges et à la plaque/boîte de conversion. Le signal analogique produit par le détecteur de charge est transmis à la borne d'entrée de la boîte de conversion via un câble. Le signal produit par la plaque/boîte de conversion est transmis à un concentrateur éther net ou à un échangeur via un réticule, puis à un ordinateur ou à des instruments spéciaux de pondération éther net via la ligne de transmission du réseau ou la carte réseau.
PCT/CN2006/000157 2006-01-26 2006-01-26 Appareil électronique combiné de pondération pour éther net WO2007085120A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2006/000157 WO2007085120A1 (fr) 2006-01-26 2006-01-26 Appareil électronique combiné de pondération pour éther net
DE212006000011U DE212006000011U1 (de) 2006-01-26 2006-02-16 Ethernet-Kombinationsausführung eines elektrischen Wägeinstruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2006/000157 WO2007085120A1 (fr) 2006-01-26 2006-01-26 Appareil électronique combiné de pondération pour éther net

Publications (1)

Publication Number Publication Date
WO2007085120A1 true WO2007085120A1 (fr) 2007-08-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/000157 WO2007085120A1 (fr) 2006-01-26 2006-01-26 Appareil électronique combiné de pondération pour éther net

Country Status (2)

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DE (1) DE212006000011U1 (fr)
WO (1) WO2007085120A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110717572A (zh) * 2019-09-28 2020-01-21 西安石油大学 一种传感数签机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6112162A (en) * 1997-07-11 2000-08-29 Richards; James L. Weight measuring apparatus using a plurality of sensors
JP2005121591A (ja) * 2003-10-20 2005-05-12 Ishida Co Ltd 組合せ計量装置
CN2746377Y (zh) * 2005-03-30 2005-12-14 成都货安计量技术中心 具有ip地址的称重传感器
CN2763784Y (zh) * 2005-01-12 2006-03-08 成都货安计量技术中心 以太网络组合式电子衡器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6112162A (en) * 1997-07-11 2000-08-29 Richards; James L. Weight measuring apparatus using a plurality of sensors
JP2005121591A (ja) * 2003-10-20 2005-05-12 Ishida Co Ltd 組合せ計量装置
CN2763784Y (zh) * 2005-01-12 2006-03-08 成都货安计量技术中心 以太网络组合式电子衡器
CN2746377Y (zh) * 2005-03-30 2005-12-14 成都货安计量技术中心 具有ip地址的称重传感器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110717572A (zh) * 2019-09-28 2020-01-21 西安石油大学 一种传感数签机
CN110717572B (zh) * 2019-09-28 2023-04-28 西安石油大学 一种传感数签机

Also Published As

Publication number Publication date
DE212006000011U8 (de) 2008-07-03
DE212006000011U1 (de) 2008-01-31

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