DE2923882A1 - Microprocessor controlled electrical balance - by switching digital component power on and off continually to reduce power consumed - Google Patents

Microprocessor controlled electrical balance - by switching digital component power on and off continually to reduce power consumed

Info

Publication number
DE2923882A1
DE2923882A1 DE19792923882 DE2923882A DE2923882A1 DE 2923882 A1 DE2923882 A1 DE 2923882A1 DE 19792923882 DE19792923882 DE 19792923882 DE 2923882 A DE2923882 A DE 2923882A DE 2923882 A1 DE2923882 A1 DE 2923882A1
Authority
DE
Germany
Prior art keywords
microprocessor
electrical balance
continually
digital component
controlled electrical
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.)
Withdrawn
Application number
DE19792923882
Other languages
German (de)
Inventor
Erich Knothe
Franz-Josef Ing Grad Melcher
Christian Oldendorf
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.)
Sartorius AG
Original Assignee
Sartorius AG
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 Sartorius AG filed Critical Sartorius AG
Priority to DE19792923882 priority Critical patent/DE2923882A1/en
Publication of DE2923882A1 publication Critical patent/DE2923882A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Sources (AREA)

Abstract

The electrical balance with a number of electronic components under the control of a microprocessor operates with less power than similar devices without any reduction in functional ability. This is achieved using one or more microprocessor-controlled switches which switch on and off the voltage supply to individual components as they are required or not. This can result in a considerably saving on average, e.g. the power consumed can typically be reduced to 20 percent of conventional loading. The method is pref. applicable to high resolution balances with battery power supplies and a quotient of maximum load to minimum display increment of 100000. The program may be held in more than one read-only memory, only one of which need be powered at a given time.

Description

Beschreibungdescription

Die Erfindung bezieht sich auf eine elektrische Waage mit einer Vielzahl von elektronischen Bauelementen, die von einem Mikroprozessor gesteuert sind.The invention relates to an electric scale with a plurality of electronic components controlled by a microprocessor.

Die durch die Elektronik einer solchen Waage umgesetzte elektrische Leistung stört besonders bei hoch auflösenden Waagen, da die so erzeugte Wärme zu mechanischen Verspannungen in der empfindlichen Lagerung des Wägesystems führt. Außerdem braucht die Waage eine erhebliche Zeit, um nach dem Einschalten ihren termischen Gleichgewichtszustand zu erreichen. In dieser sogenannten Einlaufphase erreicht die Waage noch nicht ihre volle Genauigkeit. Daneben besteht auch bei batteriebetriebenen Waagen der Wunsch, die elektrische Leistungsaufnahme zu verringern, um die Lebensdauer der Batterie zu vergrößern.The electrical converted by the electronics of such a scale Performance is particularly annoying with high-resolution scales, as the heat generated in this way is too mechanical tension in the sensitive bearing of the weighing system. In addition, the balance needs a considerable amount of time to be thermally activated after it has been switched on To achieve equilibrium. Achieved in this so-called running-in phase the balance is not yet fully accurate. In addition, there is also battery-operated Libra's desire to reduce electrical power consumption in order to increase the service life to enlarge the battery.

Aufgabe der Erfindung ist es daher, die von der Elektronik einer Waage aufgenommene elektrische Leistung zu verringern, ohne den Funktionsumfang der Elektronik einzuschränken.The object of the invention is therefore to reduce the electronics of a balance Reduce the electrical power consumed without reducing the functionality of the electronics to restrict.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß mindestens ein Mikroprozessor - gesteuertes Schaltelement vorgesehen ist, das die Spannungsversorgung einzelner Bauelemente nach Bedarf ein- und ausschaltet.This object is achieved according to the invention in that at least a microprocessor-controlled switching element is provided which provides the voltage switches individual components on and off as required.

Durch zeitweiliges Ausschalten einzelner Bauelemente wird die elektrische Leistung im Mittel erheblich verringert, z.B.By temporarily switching off individual components, the electrical Average performance significantly reduced, e.g.

auf 20 %, wenn die Bauelemente 80 % der Zeit ausgeschaltet sind.to 20% if the components are switched off 80% of the time.

Ein bevorzugtes Anwendungsgebiet dieser Erfindung sind hoch auflösende Waagen, das heißt Waagen mit einem Quotienten aus Höchst last und kleinstem Anzeigeschritt von mindestens 1051 und aus Batterien oder wiederaufladbaren Akkus betriebene Waagen.A preferred field of application of this invention are high resolution Scales, i.e. scales with a quotient of the maximum load and the smallest display increment scales powered by at least 1051 batteries or rechargeable batteries.

Die Erfindung wird im folgenden anhand der einzigen Figur beschrieben. Diese Figur zeigt das Blockschaltbild einer elektrischen Waage mit verminderter Verlustleistung.The invention is described below with reference to the single figure. This figure shows the block diagram of an electrical balance with reduced Power dissipation.

Die Waage besteht aus einem Wägesystem 1, das direkt oder über einen eingebauten Analog/Digital-Wandler ein digitales Meßsignal zum Mikroprozessor 2 liefert. Dieser Mikroprozessor 2 steht über ein I/O-Port 3 mit mehreren weiteren digitalen Bauelementen 4 in Verbindung, von denen in der Figur eines gezeichnet ist. Außerdem steuert der Mikroprozessor die Anzeige 5 der Waage. Die Spannungsversorgung erfolgt über einen Netzteil 6. Weiter ist mindestens ein Schaltelement 7 vorgesehen, das über das I/O-Port 3 vom Mikroprozessor 2 gesteuert die Spannungsversorgung für das/ die digitale (n) Bauelement (e) 4 ein- und ausschalten kann.The balance consists of a weighing system 1 that can be used directly or via a built-in analog / digital converter sends a digital measurement signal to the microprocessor 2 supplies. This microprocessor 2 is available via an I / O port 3 with several others digital components 4 in connection, one of which is drawn in the figure is. In addition, the microprocessor controls the display 5 of the balance. The power supply takes place via a power supply unit 6. At least one switching element 7 is also provided, which is controlled by the microprocessor 2 via the I / O port 3, the voltage supply for can switch the digital component (s) 4 on and off.

Handelt es sich z.B. bei den Bauelementen 4 um ROMs eines umfangreichen Programms für den Mikroprozessor, so reicht es, wenn jeweils ein ROM, das gerade benutzt wird, eine Versorgungsspannung erhält, während die anderen ROMs ausgeschaltet sind. Erst kurz bevor Daten aus einem weiteren ROM gebraucht werden, ercheint im Programm der Befehl, die Versorgungsspannung für dieses ROM einzuschalten.# Entsprechend enthält das Programm Ausschaltbefehle für gerade nicht mehr benötigte ROMs.If, for example, the components 4 are ROMs of a comprehensive Program for the microprocessor, it is sufficient if there is a ROM that just is used, receives a supply voltage while the other ROMs are switched off are. Only shortly before data from another ROM is needed does the Program the command to switch on the supply voltage for this ROM. # Correspondingly the program contains shutdown commands for ROMs that are no longer required.

LeerseiteBlank page

Claims (1)

Elektrische Waage Patentanspruch: 1. Elektrische Waage mit einer Vielzahl von elektronischen Bauelementen, die von einem Mikroprozessor gesteuert sind, dadurch gekennzeichnet, daß mindestens ein Mikroprozessor - gesteuertes Schaltelement vorgesehen ist, das die Spannungsversorgung einzelner Bauelemente nach Bedarf- ein-und ausschaltet.Electric scale claim: 1. Electric scale with a variety of electronic components controlled by a microprocessor thereby characterized in that at least one microprocessor - controlled switching element is provided is that switches the power supply to individual components on and off as required.
DE19792923882 1979-06-13 1979-06-13 Microprocessor controlled electrical balance - by switching digital component power on and off continually to reduce power consumed Withdrawn DE2923882A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792923882 DE2923882A1 (en) 1979-06-13 1979-06-13 Microprocessor controlled electrical balance - by switching digital component power on and off continually to reduce power consumed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792923882 DE2923882A1 (en) 1979-06-13 1979-06-13 Microprocessor controlled electrical balance - by switching digital component power on and off continually to reduce power consumed

Publications (1)

Publication Number Publication Date
DE2923882A1 true DE2923882A1 (en) 1981-01-08

Family

ID=6073116

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792923882 Withdrawn DE2923882A1 (en) 1979-06-13 1979-06-13 Microprocessor controlled electrical balance - by switching digital component power on and off continually to reduce power consumed

Country Status (1)

Country Link
DE (1) DE2923882A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2713648A1 (en) * 1976-03-26 1977-10-06 Tokyo Shibaura Electric Co POWER SUPPLY CONTROL DEVICE FOR STORAGE DEVICES
DE2718769A1 (en) * 1977-04-27 1978-11-16 Sartorius Werke Gmbh DOSING AID FOR A DIGITAL DISPLAYING SCALE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2713648A1 (en) * 1976-03-26 1977-10-06 Tokyo Shibaura Electric Co POWER SUPPLY CONTROL DEVICE FOR STORAGE DEVICES
DE2718769A1 (en) * 1977-04-27 1978-11-16 Sartorius Werke Gmbh DOSING AID FOR A DIGITAL DISPLAYING SCALE

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