WO2006102823A1 - A load cell with ip address - Google Patents

A load cell with ip address Download PDF

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Publication number
WO2006102823A1
WO2006102823A1 PCT/CN2006/000159 CN2006000159W WO2006102823A1 WO 2006102823 A1 WO2006102823 A1 WO 2006102823A1 CN 2006000159 W CN2006000159 W CN 2006000159W WO 2006102823 A1 WO2006102823 A1 WO 2006102823A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
pin
connected
load cell
feet
ip address
Prior art date
Application number
PCT/CN2006/000159
Other languages
French (fr)
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

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G3/00Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/12Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
    • G01G3/14Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
    • G01G3/142Circuits specially adapted therefor
    • G01G3/147Circuits specially adapted therefor involving digital counting
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G23/00Auxiliary devices for weighing apparatus

Abstract

A load cell with IP address contains a power supply and a load sensor. Said power supply includes a bridge power supply and a power supply. Said load sensor includes an IP converting board/box for converting analog signals outputted from the load sensor into digital signals. The power supply is connected to the load sensor and the IP converting board/box in series. The load cell with IP address can be inspected and parameter- corrected remotely. The load cell can be tested, corrected and demarcated during inspection and employment.

Description

Load cell with an IP address

FIELD

The present invention relates to a weighing device technology, particularly to the load cell having an IP address. Background technique

Currently, domestic use of the load cell, the metal and the elastomeric sheet composed of resistance strain, when subjected to the pressure or weight of the metal elastic body is deformed, the resistance strain gauge outputs an analog electrical signal, which analog electrical interference poor, not only easy to each condition detection sensor; serial interface RS232 digital output signal load low transmission speed sensor, in combination inconvenient to use, low weighing precision, especially under suitable dynamic weighing and high speeds. SUMMARY

The object of the present invention to overcome the above problems, to provide a high weighing accuracy of the weighing cell has an IP address.

To achieve the above object, the technical solution of the present invention comprises: the load cell with an IP address includes a power supply and a load cell, the power source is a power supply for the bridge and the power supply; said load cell further comprising a can convert the analog signal output from the load cell into a digital signal conversion board IP converter box or, by the power supply and the load cell, conversion panel IP converter box or sequentially connected.

The IP conversion board includes an operational amplifier or converter box, IP address of the Ethernet network connected to the converter, a logic controller, microcontroller, or Mcu DSP digital signal processor, a program memory and a computer or Ethernet special weighing instruments a controller, said signal output terminal of the sensor signal input terminal of the operational amplifier is connected to the operational amplifier and then through

A / D converter and DSP Mcu microcontroller or digital signal processor, Ethernet controller, coupled to the logic controller and program memory, wherein said operational amplifier is an operational amplifier circuit from the 12V power supply, INA128 chip, resistor R19 consist of.

The load cell is a resistive strain sensor, a strain bridge circuit composed of two resistors and two equal resistors, which is connected to a first positive supply voltage pin, the second pin chip INA128 second operational amplifier pin is connected, is connected to pin 3 of chip INA128 ground pin 4 of the operational amplifier 3 feet.

The load cell of the present invention with an IP address, the remote inspection may be made thereto, the correction parameter. And the assay can be used to test and correction angle difference calibration. After the original input parameter during maintenance, through the Ethernet network having a load cell of the IP address, to ensure that the entire electronic weighing weighing data unchanged. A weighing software provided by the manufacturer, the user can load cell having a combination of an IP address into a variety of electronic scales. When the load cell volume allows, may convert the load cell converts analog signals into IP signals in an Ethernet board assembly load cell, the load cell when the volume of hours, may be an analog signal output from the load cell transmitted through the cable converter box to the IP network into an Ethernet signal output.

The present invention the load cell strong anti-interference ability, high weighing accuracy, transmission speed, can easily detect the condition of each sensor only with an IP address, for static weighing operation state and under high-speed conditions. BRIEF DESCRIPTION

FIG 1 is a schematic block diagram of electrical invention having the IP address of the load cell of the present. FIG 2 is a circuit diagram of a load cell of the present invention having an IP address.

FIG 3 is a load cell of the present invention has a circuit diagram of an operational amplifier ΓΡ address. FIG 4 is a load cell of the present invention having the IP address of the A / D conversion circuit diagram.

FIG 5 is a circuit diagram of a logic controller of the present invention the load cell with an IP address.

FIG 6 is a circuit diagram of the present invention having load cells Mcu microcontroller IP address of the digital signal processor or DSP.

FIG. 7 is a circuit diagram of the program memory of the present invention having a load cell of the IP address.

FIG 8 according to the present invention is a special weighing Ethernet controller having an IP address connected to a circuit diagram of the instrument and a computer or Ethernet network IP address of the load cell.

9 is a schematic view of a bridge structure of the present invention the load cell with an IP address. FIG 10 is a schematic structural column according to the present invention the load cell with an IP address. FIG 11 is a schematic structure inserted into the load cell of the present invention having the IP address. detailed description

The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

1, the present invention has an IP address of the load cell, load cell includes a power supply 1 and 2, the power supply is a power supply for the bridge and the power supply; the load cell can further comprise a load converting an analog signal output of the sensor 2 into a digital signal conversion or IP conversion sheet cassette 3, 2, IP conversion panel or the change box 3 sequentially connected by the power supply 1 and the load cell.

The IP conversion panel or the change box 3 includes an operational amplifier 4, A / D converter 5, control logic 6, Mcu microcontroller or DSP digital signal processor 7, a memory 8 and a computer program or a special weighing Ethernet Ethernet controller having an IP address 9 connected to the instrument, the sensor signal output terminal 2 of the operational amplifier 4 is connected to the signal input terminal of the operational amplifier 4 and then through the a / D converter 5 and the microcontroller or DSP Mcu a digital signal processor 7, the Ethernet controller 9, the logic controller coupled to a program memory 6 and 8, wherein said operational amplifier is an operational amplifier circuit 4 by a 12V power supply, INA128 chip, consisting of resistor R19.

Shown in Figure 2: the load cell 2 are resistance strain sensor, the strain of two resistors and two equal resistors to form a bridge circuit, which is connected to the first power supply 1 and the positive electrode pin 1, pin 2 and of the operational amplifier INA128 chip 4 is connected to pin 2, pin 3 connected to ground, pin 4 of the operational amplifier chip 4 INA128 of 3 feet.

3: the operational amplifier INA128 chip 4 of 7 feet to a positive 12V power supply, pin 4 is connected to the negative power supply 12V, and a first pin 8 and pin R19 in parallel, and said second pin the load cell is connected to the second pin 2, pin 3 connected to pin 4 and the load cell 2, the grounding pin 5, the pin 6 connected in series R1 a / D converter 9 of the pin 5.

4: after the A / D converter circuit 5 is converted by the A / D converter 5 and a resistor Rl, a capacitor C1, A / D converter 9 feet 5 and the resistor Rl in series with INA128 chip of the operational amplifier 4 is connected to pin 6, pin 9 is connected to a first capacitor C1 connected in series after the signal ground pin 19 and the logic controller 35 of the pin 6, pin 20 is connected to the first and second logic controller 36 feet 6 .

As shown in FIG. 5: the logic controller PLD device 6 is connected to the 35th pin of PLD and A / D converter 5 the pin 19, pin 36 and the A / D converter (5) 20 pin is connected, is connected to the positive electrode 50 and the power supply pin 1, pin 25 is connected to ground, the first pin 78 and the pin 108 of the digital signal processor 7.

Shown in Figure 6: a digital signal processor 7 is Mcu microcontroller or DSP digital signal processor, a digital signal processing circuit which is composed Mcu microcontroller or digital signal processor DSP and the power supply 1 Ί composition, microcontroller Mcu a digital signal processor or DSP program memory 11 feet 5 feet 7, 8 is connected to the power supply pin 13 connected to the positive electrode 1 is connected to a program memory 14 feet 8 of 8 feet, 12 feet is grounded, the first 4, 5, 6, connected with the IP address of the Ethernet controller 7 connected to the foot, respectively and the computer or Ethernet special weighing instruments 1, 2, 3, 6 to 9 feet.

Figure 7: the program memory 6 feet and a positive power supply 8 of a program stored in the program memory circuit 8 is composed of a program memory and a power source 8 is connected to the composition 1, the pin 7 is grounded and pin 5 Mcu microcontroller or DSP digital signal processor 11 is connected to pin 7, pin 8 is connected with a microcontroller or DPS Mcu digital signal processor 7 to 14 feet.

As shown in FIG 8: the Ethernet controller having an IP address 1, 2, 3, 6 feet 9 are respectively connected to the digital signal processor 4, 5, 6, 7 of 7 feet.

9, 10: IP conversion panel 3 are assembled in a bridge, the column load sensor 2. As shown in FIG. 11: IP converter box 3 may be connected via cable 14 to the load cell 2. Then connected to a computer or Ethernet special weighing instruments.

Load cell of the present invention with an IP address by the power supply 1, the load cell 2, and IP 3 or IP conversion panel 3 connected to form a converter box, which operates as follows: When the weighing cell with an IP address or by weight pressure, through the metal elastic body 10 and the strain gauges 11 outputs an analog electrical signal by the second analog electrical signal, an output pin 4 enters the second operational amplifier, the 4 feet 3, 4 amplified by the operational amplifier, by 6 feet output to the a / D converter analog to digital converter 5 into a digital signal by the a / D analog-digital converter 19, the output pin 20 to the logic 35 of the controller 5, 6 of the legs 36, the logic controller micro 6 Mcu under control of controller or DSP digital signal processor 7 into a digital signal processor DSP 108 of pin 7 from the pin 78 output of the instruction program memory 8 DSP digital signal processor 7 performs the data through the Ethernet controller 9 outputs the Ethernet signal, sent to the computer or Ethernet special weighing instruments.

The load cell of the present invention with an IP address, the remote inspection may be made thereto, the correction parameter. And the assay can be used to test and correction angle difference calibration. After the original input parameter during maintenance, through the Ethernet network having a load cell of the IP address, to ensure that the entire electronic weighing weighing data unchanged. A weighing software provided by the manufacturer, the user can load cell having a combination of an IP address into a variety of electronic scales. When the volume of the load cell 2 allows, may weigh sensor 2 converts analog signals into IP Ethernet signal conversion panel 3 is assembled in the load cell 2, when a small volume of the load cell 2, can be called analog signal output from the load cell 14 through the transmission cable converter box to the IP network 3 is converted into an Ethernet signal output.

Claims

Rights request
An IP address with a load cell, comprising a power source (1) and a load cell (2), said power supply (1) is a bridge for the power supply and power; characterized in that: said load cell further comprising a load cell may be (2) converts the analog signal outputted from the IP conversion panel or a digital signal converter box (3), by the power supply (1) and a load cell (2), or the IP conversion plate converter box ( 3) sequentially connected.
The load cell with an IP address according to claim 1, wherein: said conversion IP converter box or plate (3) comprises an operational amplifier (4), A / D converter (5), the logic the controller (6), Mcu microcontroller or DSP digital signal processor (7), a program memory (8) and a computer or Ethernet weighing instruments dedicated Ethernet controllers connected with an IP address (9), the a sensor (2) signal output terminal of the operational amplifier (4) a signal input terminal, the operational amplifier (4) and then through the a / D converter (5) and Mcu microcontroller or DSP digital signal processor (7) , Ethernet controller (9), logic controller (6) and a program memory (8) is connected, wherein said operational amplifier (4) of the operational amplifier circuit is a 12V power supply, INA128 chip, consisting of resistor R19.
3. Load cell with an IP address according to claim 2, wherein: the load cell (2) is the resistance of the strain sensor, the strain of two resistors and a bridge consisting of two equal resistors type circuit which has a first pin and a power supply (1) the positive electrode is connected, is connected to the second pin of the operational amplifier (4) of the chip INA128 second legs, the chip pin 3 is grounded, pin 4 of the operational amplifier (4) of INA128 It connected to 3 feet.
The load cell 1 with an IP address or claim 2 or claim 3, wherein: the chip INA128 operational amplifier (4) of the positive electrode 7 connected to 12V power pin, a fourth pin contact negative 12V power supply, the first pin and the pin 8 in parallel with R19, the second pin and the load sensor (2) is connected to the second pin, pin 3 is connected to the load cell (2) is 4 feet, 5 a ground pin, the sixth pin R1 connected in series a / D converter (5) is 9 feet.
The load cell has IP address 1, 2 or claim 3, wherein: said A / D converter (5) by the conversion circuit A / D converter (5) and a resistor Rl, a capacitor C1, a / D converter (5) of the pin 9 and the resistor R1 connected in series with the operational amplifier chip (4) is connected to pin 6 INA128, the signal ground pin 9 of the capacitor C1 connected in series, pin 19 and logic controller (6) coupled to the first pin 35, and pin 20 is connected to the first logic controllers (6) of 36 feet.
The load cell has IP address 1, 2 or claim 3, wherein: said logic controller (6) is PLD devices, the first pin 35 and the A / D converter of PLD ( 5) the pin 19 is connected, is connected to the 36th pin of a / D converter (5) is 20 feet, connected to the positive electrode of 50 feet and the power supply (1), the first 25 feet grounded, 78 feet and digital signal processing connected to (7) of 108 feet.
The load cell has IP address 1, 2 or claim 3, wherein: said digital signal processor (7) is Mcu microcontroller or DSP digital signal processor, the digital signal processing Mcu circuit is composed of a microcontroller or digital signal processor DSP (7) and a power supply (1) consisting of, Mcu microcontroller or digital signal processor DSP (7) of the pin 11 with a program memory (8) of 5 pin is connected, the first 13 feet and power supply (1) the positive electrode is connected, is connected to the first pin 14 and a program memory (8) of 8 feet, 12 feet grounded, 4, 5, 6, 7 feet, respectively, and a computer or Ethernet network connected with the Ethernet controller connected to the private IP address weighing instruments (9) is 1, 2, 3, 6 feet.
The load cell has IP address 1, 2 or claim 3, wherein: said program memory (8) of the program memory circuit is composed of a program memory (8) and a power supply (1) consisting of the positive electrode program memory (8) and pin 6 of the power supply (1) is connected, is connected to the ground pin 7, pin 5 and Mcu microcontroller or digital signal processor DSP (7) of 11 feet, 8 feet It is connected to a microcontroller or DPS Mcu digital signal processor (7) is 14 feet.
9. The load sensor has IP address 1, 2 or claim 3, wherein: the Ethernet network controller (9) having a first IP address, 2, 3, 6 feet respectively then a digital signal processor (7) of 4, 5, 6, 7 feet.
10. The load cell 1 with an IP address or claim 2 or claim 3, wherein: said conversion IP converter box or plate (3) may be assembled in a load cell (2), or by cable (14) with the load sensor (2) is connected.
PCT/CN2006/000159 2005-03-30 2006-01-26 A load cell with ip address WO2006102823A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN 200520033695 CN2746377Y (en) 2005-03-30 2005-03-30 Weighing sensor with IP address
CN200520033695.X 2005-03-30

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008600004U JP3143223U (en) 2005-03-30 2006-01-26 Load cell with a Ip address
KR20077000003U KR200439307Y1 (en) 2005-03-30 2006-01-26 A load cell with ip address
DE200621000009 DE212006000009U1 (en) 2005-03-30 2006-01-26 Load cell with IP address

Related Child Applications (1)

Application Number Title Priority Date Filing Date
AU2007100152A Division AU2007100152A5 (en) 2007-02-27 2007-02-27 A Load Cell with IP Address

Publications (1)

Publication Number Publication Date
WO2006102823A1 true true WO2006102823A1 (en) 2006-10-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/000159 WO2006102823A1 (en) 2005-03-30 2006-01-26 A load cell with ip address

Country Status (5)

Country Link
JP (1) JP3143223U (en)
KR (1) KR200439307Y1 (en)
CN (1) CN2746377Y (en)
DE (1) DE212006000009U1 (en)
WO (1) WO2006102823A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE212006000011U8 (en) * 2006-01-26 2008-07-03 Chengdu Huoan Measure Technical Center, Chengdu Ethernet combination embodiment of an electrical weighing instrument
WO2007115433A1 (en) * 2006-04-10 2007-10-18 Chengdu Huoan Measure Technical Center An ethernet network rail weighting apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5076375A (en) * 1987-11-30 1991-12-31 Mettler-Toledo, Inc. Load cell
JPH10104052A (en) * 1996-09-30 1998-04-24 Shimadzu Corp Electronic measuring instrument
CN1561065A (en) * 2004-03-04 2005-01-05 华中科技大学 Method for sensor adapative seamless Insertion internet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5076375A (en) * 1987-11-30 1991-12-31 Mettler-Toledo, Inc. Load cell
JPH10104052A (en) * 1996-09-30 1998-04-24 Shimadzu Corp Electronic measuring instrument
CN1561065A (en) * 2004-03-04 2005-01-05 华中科技大学 Method for sensor adapative seamless Insertion internet

Also Published As

Publication number Publication date Type
DE212006000009U1 (en) 2007-06-06 grant
KR20080000104U (en) 2008-01-24 application
KR200439307Y1 (en) 2008-04-03 grant
JP3143223U (en) 2008-07-17 application
CN2746377Y (en) 2005-12-14 grant

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