GB2398386A - Digital and analogue display - Google Patents

Digital and analogue display Download PDF

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Publication number
GB2398386A
GB2398386A GB0302476A GB0302476A GB2398386A GB 2398386 A GB2398386 A GB 2398386A GB 0302476 A GB0302476 A GB 0302476A GB 0302476 A GB0302476 A GB 0302476A GB 2398386 A GB2398386 A GB 2398386A
Authority
GB
United Kingdom
Prior art keywords
unit
pointer
digital
step motor
signal
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB0302476A
Other versions
GB0302476D0 (en
GB2398386B (en
Inventor
Pin-Hsin Ho
Yu-Mei Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Charder Electronic Co Ltd
Original Assignee
Charder Electronic Co Ltd
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 Charder Electronic Co Ltd filed Critical Charder Electronic Co Ltd
Priority to GB0302476A priority Critical patent/GB2398386B/en
Priority to DE20303313U priority patent/DE20303313U1/en
Publication of GB0302476D0 publication Critical patent/GB0302476D0/en
Publication of GB2398386A publication Critical patent/GB2398386A/en
Application granted granted Critical
Publication of GB2398386B publication Critical patent/GB2398386B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D7/00—Indicating measured values
    • G01D7/002—Indicating measured values giving both analog and numerical indication
    • 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
    • G01G23/3707—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting using a microprocessor

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Control Of Stepping Motors (AREA)
  • Indicating Measured Values (AREA)

Abstract

A pointer indicator includes a signal output unit 1, a microprocessor unit 2, a digital display unit 3 and a pointer unit 4. The pointer unit 4 includes a digital/analogue conversion control unit 41, a step motor 42, and a pointer 43. Thus, the pointer indicator provides a digital indication and a pointer indication simultaneously, so that the user has two reading thereby facilitating the user identifying the value of the weight of the object to be measured.

Description

I DIGITAL TYPE POINTER INDICATOR
2 BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a digital type pointer indicator, and s more particularly to a digital type pointer indicator that provides a digital 6 indication manner and a pointer indication manner simultaneously, so that the 7 user has two value reading manners, thereby facilitating the user identifying 8 the value of the weight of the object to be measured.
9 2. Description of the Related Art
A conventional weight measuring device in accordance with the prior art comprises a mechanical scale and an electronic scale.
2 The mechanical scale has an inside provided with a spring. Thus, 13 when the object to be measured is placed on the mechanical scale, the spring 14 elastically drives the pointer to point to the reading value on the scale panel, thereby indicating the weight of the object to be measured. However, the 16 mechanical scale cannot exactly measure the weight of the object to be 17 measured.
18 The electronic scale can directly and exactly measure the weight of 19 the object to be measured. However, the display panel of the electronic scale often indicates various values simultaneously, such as the height, the weight, 21 the time, etc., so that the user cannot directly identify the value representing the 22 weight of the object to be measured, thereby causing inconvenience to the user.
1 SUMMARY OF THE INVENTION
2 The present invention is to mitigate and/or obviate the disadvantage 3 of the conventional weight measuring device.
4 The primary objective of the present invention is to provide a digital type pointer indicator that provides a digital indication manner and a pointer 6 indication manner simultaneously, so that the user has two value reading 7 manners, thereby facilitating the user identifying the value of the weight of the 8 object to be measured.
9 Another objective of the present invention is to provide a digital type pointer indicator indicates the weight of the object to be measured by the digital display unit and by the pointer of the pointer unit, so that the user can 12 doubly read the weight of the object to be measured through the digital display 13 unit and through the pointer of the pointer unit, thereby facilitating the user 14 identifying the value of the weight of the object, and thereby preventing the user from misunderstanding the value of the weight of the object.
16 A further objective of the present invention is to provide a digital 17 type pointer indicator, wherein the digital impulse signal output from the 18 digitaVanalogue conversion control unit of the pointer unit is very exact, so 19 that the rotation shaft of the step motor is operated and rotated exactly and precisely, thereby enhancing the precision of the pointer of the pointer unit 4 21 on the scale of the scale panel, so as to point the weight of the object exactly.
I In accordance with the present invention, there is provided a digital 2 type pointer indicator, comprising a signal output unit, a microprocessor unit, a 3 digital display unit, and a pointer unit, wherein: 4 the signal output unit outputs an electronic signal according to a s weight of an object to be measured; 6 the microprocessor unit is connected to the signal output unit, the 7 microprocessor unit converts the electronic signal output from the signal 8 output unit into a digital signal, and outputs the digital signal; 9 the digital display unit is connected to the microprocessor unit, the digital display unit converts the digital signal output from the microprocessor 11 unit into a value, and indicates the value; and 12 the pointer unit is connected to the microprocessor unit, the pointer 13 unit includes a digital/analogue conversion control unit, a step motor, and a 14 pointer, wherein: the digital/analogue conversion control unit of the pointer unit 16 converts the digital signal output from the microprocessor unit into a digital 17 impulse signal and outputs the digital impulse signal; 18 the step motor of the pointer unit is connected to the digital/analogue 19 conversion control unit, and is driven by the digital impulse signal output from the digital/analogue conversion control unit to rotate through a fixed angle; and 2 l the pointer of the pointer unit is driven to move by the step motor.
I Further benefits and advantages of the present invention will become 2 apparent after a careful reading of the detailed description with appropriate 3 reference to the accompanying drawings.
4 BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a flow chart of a digital type pointer indicator in accordance 6 with the preferred of the present invention; 7 Fig. 2 is a schematic structural view of the digital type pointer 8 indicator in accordance with the preferred of the present invention; and 9 Fig. 3 is a schematic plan operational view of the digital type pointer indicator in accordance with the preferred of the present invention.
11 DETAILED DESCRIPTION OF THE INVENTION
12 Referring to the drawings and initially to Figs. 1 and 2, a digital type 13 pointer indicator in accordance with the preferred embodiment of the present 14 invention comprises a signal output unit 1, a microprocessor unit 2, a digital display unit 3, and a pointer unit 4.
16 The signal output unit 1 is an externally connected signal output unit.
17 The signal output unit 1 has an inside provided with a bearing load member 18 (not shown) that is required for measuring the weight of the object to be 19 measured. Thus, when the object to be measured is placed on the signal output unit 1, the signal output unit 1 outputs an electronic signal 11 by detection of 21 the bearing load member. The electronic signal 11 is varied according to the 22 weights of the different objects to be measured.
l The microprocessor unit 2 is connected to the signal output unit 1.
2 The microprocessor unit 2 converts the electronic signal 11 output from the 3 signal output unit 1 into a digital signal 21, and outputs the digital signal 21.
4 The digital display unit 3 is connected to the microprocessor unit 2.
The digital display unit 3 converts the digital signal 21 output from the 6 microprocessor unit 2 into a value, and indicates the value.
7 The pointer unit 4 is connected to the microprocessor unit 2. The 8 pointer unit 4 includes a digitaVanalogue conversion control unit 41, a step 9 motor 42, and a pointer 43.
The digital/analogue conversion control unit 41 of the pointer unit 4 it is connected to the microprocessor unit 2. The digitaVanalogue conversion 2 control unit 41 of the pointer unit 4 converts the digital signal 21 output from 3 the microprocessor unit 2 into a digital impulse signal 411 and outputs the 14 digital impulse signal 411.
The step motor 42 of the pointer unit 4 is connected to the 16 digital/analogue conversion control unit 41, and is mounted on a scale panel 44.
17 The step motor 42 of the pointer unit 4 has a rotation shaft 421 protruding 18 outward from a center of the scale panel 44. Preferably, the scale panel 44 has a 19 circular shape. In operation, the step motor 42 of the pointer unit 4 receives the digital impulse signal 411 output from the digital/analogue conversion control 21 unit 41. Thus, the step motor 42 of the pointer unit 4 is driven by the digital 22 impulse signal 411 output from the digital/analogue conversion control unit 41, s ] so that the rotation shaft 421 of the step motor 42 is rotated through a fixed 2 angle.
3 The pointer 43 of the pointer unit 4 has a first end secured on the 4 rotation shaft 421 of the step motor 42 to rotate therewith and a second end directed toward the scale 440 (see Fig. 3) on the scale panel 44. In addition, the 6 pointer 43 of the pointer unit 4 is moved according to the fixed angle of the 7 rotation shaft 421 of the step motor 42.
8 In practice, when the object to be measured is placed on the signal 9 output unit 1, the signal output unit 1 outputs an electronic signal 11 by detection of the bearing load member. Then, the microprocessor unit 2 11 converts the electronic signal 11 output from the signal output unit 1 into a 12 digital signal 21, and outputs the digital signal 21. Then, the digital signal 21 13 output from the microprocessor unit 2 is transmitted to the digital display unit 14 3 and the pointer unit 4 respectively. At this time, the digital display unit 3 converts the digital signal 21 output from the microprocessor unit 2 into a 16 value, and indicates the value transferred from the digital signal 21, wherein 17 the indicated value is the weight of the object to be measured. At the same time, 18 the pointer 43 of the pointer unit 4 is pointed to the value of the scale 440 (see 19 Fig. 3) on the scale panel 44, wherein the value is the weight of the object to be measured. In addition, the value of the scale 440 (see Fig. 3) on the scale panel 21 44 pointed by the pointer 43 of the pointer unit 4 is exactly the value indicated 22 on the digital display unit 3.
l Thus, the digital type pointer indicator in accordance with the present 2 invention can indicate the weight of the object to be measured by the digital 3 display unit 3 and by the pointer 43 of the pointer unit 4.
4 For example, as shown in Fig. 3, after the object 5 to be measured is s placed on the signal output unit 1, the signal output unit l outputs an electronic 6 signal 11 that is processed by the microprocessor unit 2 which converts the 7 electronic signal 11 into a digital signal 21, and outputs the digital signal 21 to 8 the digital display unit 3 and the pointer unit 4 respectively. Thus, the value 9 representing the weight of the object 5 is indicated on the digital display unit 3, 0 and is pointed by the pointer 43 of the pointer unit 4 on the scale 440 of the 11 scale panel 44.
12 Accordingly, the user can doubly read the weight of the object 5 to be 13 measured through the digital display unit 3 and through the pointer 43. of the 14 pointer unit 4, thereby facilitating the user identifying the value of the weight of the object 5, and thereby preventing the user from misunderstanding the 16 value of the weight of the object 5.
17 In addition, in the digital type pointer indicator in accordance with 18 the present invention, the digital/analogue conversion control unit 41 of the 19 pointer unit 4 converts the digital signal 21 output from the microprocessor unit 2 into a digital impulse signal 411 and outputs the digital impulse signal 21 411. The magnitude of the digital signal 21 is determined according to the 22 weight of the object 5. Thus, the digital impulse signal 411 output from the I digitaVanalogue conversion control unit 41 of the pointer unit 4 is very exact, 2 so that the rotation shaft 421 of the step motor 42 is operated and rotated 3 exactly and precisely, thereby enhancing the precision of the pointer 43 of the 4 pointer unit 4 on the scale 440 of the scale panel 44, so as to point the weight of s the object 5 exactly.
6 While the preferred embodiment(s) of the present invention has been 7 shown and described, it will be apparent to those skilled in the art that various modifications may be made in the embodiment(s) without departing from the 9 spirit of the present invention. Such modifications are all within the scope of the present invention.

Claims (1)

  1. l WHAT IS CLAIMED IS: 2 1. A digital type pointer indicator, comprising a
    signal output unit, a 3 microprocessor unit, a digital display unit, and a pointer unit, wherein: 4 the signal output unit outputs an electronic signal according to a s weight of an object to be measured; 6 the microprocessor unit is connected to the signal output unit, the 7 microprocessor unit converts the electronic signal output from the signal 8 output unit into a digital signal, and outputs the digital signal; 9 the digital display unit is connected to the microprocessor unit, the lo digital display unit converts the digital signal output from the microprocessor 11 unit into a value, and indicates the value; and 2 the pointer unit is connected to the microprocessor unit, the pointer 13 unit includes a digital/analogue conversion control unit, a step motor, and a 14 pointer, wherein: the digital/analogue conversion control unit of the pointer unit 16 converts the digital signal output from the microprocessor unit into a digital 7 impulse signal and outputs the digital impulse signal; 8 the step motor of the pointer unit is connected to the digitaVanalogue 19 conversion control unit, and is driven by the digital impulse signal output from the digital/analogue conversion control unit to rotate through a fixed angle; and 2 l the pointer of the pointer unit is driven to move by the step motor.
    1 2. The digital type pointer indicator in accordance with claim 1, 2 wherein the digital/analogue conversion control unit of the pointer unit is 3 connected to the microprocessor unit.
    4 3. The digital type pointer indicator in accordance with claim 1, wherein the step motor of the pointer unit is mounted on a scale panel.
    6 4. The digital type pointer indicator in accordance with claim 3, 7 wherein the scale panel has a circular shape.
    8 5. The digital type pointer indicator in accordance with claim 3, 9 wherein the step motor of the pointer unit has a rotation shaft protruding outward from a center of the scale panel.
    11 6. The digital type pointer indicator in accordance with claim 5, 12 wherein the step motor of the pointer unit is driven by the digital impulse 13 signal output from the digital/analogue conversion control unit, so that the 14 rotation shaft of the step motor is rotated through a fixed angle.
    7. The digital type pointer indicator in accordance with claim 5, 6 wherein the pointer of the pointer unit has a first end secured on the rotation 7 shaft of the step motor to rotate therewith and a second end directed toward a 8 scale on the scale panel.
    19 8. The digital type pointer indicator in accordance with claim 6, wherein the pointer of the pointer unit is moved according to the fixed angle of 21 the rotation shaft of the step motor.
    9. A digital type pointer indicator substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
    Amendments to the claims have been filed as follows: Claims: 1. A digital type pointer indicato, comprising a signal output unit, a microprocessor unit, a digital display unit and a pointer unit, in which: a) the signal output unit generates an electronic signal in dependence on the weight of an object to be weighed, b) the microprocessor unit converts the electronic signal from the signal output unit into a digital signal, _ _ _, . _ _ A,, ,, , A A - - f, . h the u,3,ca' ui,pay unit '=u=,v=., the ',glt=, fig microprocessor unit and produces a display corresponding to the value of the weight, d) the pointer unit includes a digitai/analogue conversion control unit, a step motor and a pointer, e) the digital/analogue conversion control unit receives the digital signal from the microprocessor unit and converts it into a di,ita! impulse signa!, and f) the step motor receives the digital impulse signal generated by the digital/analogue conversion control unit and causes rotation of the pointer through an angle corresponding to the value of the weight.
    2. A digits! type pointer indicator as claimed in Claim l' in which the step motor of the pointer unit is mounted on a panel marked with a scale.
    3. A digital type pointer indicator as, claimed in Claim 2, in which the panel is circular in shape. It
    4. A digital type pointer indicator as claimed in Claim 2, in which the step motor drives a rotatable shaft p,otrudirng Outwardly from the centre of the panel.
    5. A digital type pointer indicator as claimed in Claim 4, in which the pointer has a first end secured to the rotatable shaft of the step motor and a second end movable over the scale on the panel.
    6. A digital pointer indicator constructed and arranged to operate substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
GB0302476A 2003-02-04 2003-02-04 Digital type pointer indicator Expired - Fee Related GB2398386B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0302476A GB2398386B (en) 2003-02-04 2003-02-04 Digital type pointer indicator
DE20303313U DE20303313U1 (en) 2003-02-04 2003-02-28 Digital pointing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0302476A GB2398386B (en) 2003-02-04 2003-02-04 Digital type pointer indicator
DE20303313U DE20303313U1 (en) 2003-02-04 2003-02-28 Digital pointing device

Publications (3)

Publication Number Publication Date
GB0302476D0 GB0302476D0 (en) 2003-03-05
GB2398386A true GB2398386A (en) 2004-08-18
GB2398386B GB2398386B (en) 2005-02-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB0302476A Expired - Fee Related GB2398386B (en) 2003-02-04 2003-02-04 Digital type pointer indicator

Country Status (2)

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DE (1) DE20303313U1 (en)
GB (1) GB2398386B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2080553A (en) * 1980-07-12 1982-02-03 Rubery Owen Group Services Ltd Weighing apparatus
GB2184242A (en) * 1985-11-13 1987-06-17 Mitutoyo Mfg Co Ltd Electronic measuring device
EP0258192A2 (en) * 1986-08-29 1988-03-02 GIBERTINI ELETTRONICA S.r.l. A microprocessor circuit device for continuously displaying a scale of the analog type
JP2000143921A (en) * 1998-11-05 2000-05-26 Daikin Ind Ltd Fluororesin composition for part of electronic or electric equipment and part for electronic or electric equipment
WO2001007877A1 (en) * 1999-07-23 2001-02-01 Measurement Specialties, Inc. Electronic scale having analog display

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2080553A (en) * 1980-07-12 1982-02-03 Rubery Owen Group Services Ltd Weighing apparatus
GB2184242A (en) * 1985-11-13 1987-06-17 Mitutoyo Mfg Co Ltd Electronic measuring device
EP0258192A2 (en) * 1986-08-29 1988-03-02 GIBERTINI ELETTRONICA S.r.l. A microprocessor circuit device for continuously displaying a scale of the analog type
JP2000143921A (en) * 1998-11-05 2000-05-26 Daikin Ind Ltd Fluororesin composition for part of electronic or electric equipment and part for electronic or electric equipment
WO2001007877A1 (en) * 1999-07-23 2001-02-01 Measurement Specialties, Inc. Electronic scale having analog display

Also Published As

Publication number Publication date
GB0302476D0 (en) 2003-03-05
GB2398386B (en) 2005-02-09
DE20303313U1 (en) 2003-05-15

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20140204