Pick by Voice

Pick by Voice ist eine spezielle Art der Kommissioniersysteme. Direkt über die Sprache kommuniziert der Kommissionierer mit der Steuerung, wobei die Befehle auf das notwendige Minimum optimiert werden. Der Mitarbeiter soll von Pick by Voice System optimal unterstützt und nicht überlastet werden. Über ein Headset hört er dann die Arbeitsanweisungen. Das hochqualitative Mikrofon ermöglicht seine Spracheingaben. Die Sprachanalyse und Sprachsynthese erfolgt direkt in einem leistungsfähigen Voice-Terminal, den der Mitarbeiter bei sich trägt. Die Kommunikation zwischen dem Voice-Terminal und dem LUCA-Server erfolgt direkt über das lokale WLAN.

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In this and other articles we would like to introduce you not only to our LUCA systems and their use, but also to give you a detailed insight into the various possible combinations. We will also explain to you how this Pick by Voice works and what advantages and disadvantages the system has. In addition, which picking systems fit together and how they are best used. Stay tuned.

Speech recognition in everyday life

Speech recognition is nothing special today. Smartphones, voice input in the car, voice-controlled mailbox, etc. are part of everyday life. However, all these systems work very differently. Almost all online systems send voice input to a large server in a data center. There, very fast computers process the speech input, analyze it and return the result as text. Some systems that do not have a direct Internet connection, such as cars, work offline. The entire speech analysis takes place directly on-board in a powerful computer.

That's exactly how the Pick by Voice system works, offline. In a warehouse, the environment is sometimes very harsh. Lots of background noise and traffic. As a result, special conditions must be observed for voice control in the warehouse. The language is therefore used as communication between the employee and the control system.

Trotz der Nebengeräusche und vielen Störfaktoren müssen Sie die optimale Orientierung und besonders die Sicherheit behalten. Die Pick by Voice Hardware ist speziell dafür geeignet und wird voll auf dem LUCA-Server als Kommissioniersystem integriert. Als System-Anbieter kombinieren wir auch Pick by Voice mit anderen Technologien zusammen: Pick-by-LightPick-by-Point®Pick-by-ScanPick-by-Watch, etc.

Read more on Wikipedia if required

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Anmeldung bei Pick by Voice System

Before starting work, the employee logs on using his or her 3-digit or 4-digit language number. Registration is required to adjust its optimal settings, such as microphone sensitivity, headset volume, speed of speech output and, most importantly, speech. The system saves all these settings on the LUCA-Server off. The employee can change his voice terminal at any time and is not permanently assigned to the device. At the end of work or during a break, the employee logs off using special voice commands.

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Pick by Voice Checksummen

In a standard Pick by Voice process, the employee must confirm the arrival at a warehouse compartment with a checksum via voice (e.g. "59 OK"). This secures the wrong access to the storage compartments. Unfortunately, with small systems, the checksums are often memorized by the employees, which can lead to confusion. The use of barcode scanners (article number) or ePaper displays can help as a solution. On the ePaper, the checksums are changed in an hourly cycle, for example, so that the checksums cannot be memorized by the employees.

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Pick by Voice Komponenten

The headsets

The headset is connected to a mobile terminal. For safety reasons, only one-sided headsets may be used in the warehouse. The ambient noises of forklift drivers, materials handling equipment and other employees must not be switched off. Special microphones that Pick by Voice suppress the disturbing ambient noise. The headsets can be replaced by special safety vests with built-in microphones and speakers. We only use professional headsets from Sennheiser or equivalent manufacturers.

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The Voice Terminal

Die Voice-Terminals sind kleine, leichte und leistungsfähige Computer, die meistens am Gürtel getragen werden. Selbst die Batterieversorgung der Geräte reicht für die gesamte Schicht. Danach müssen die Akkus gewechselt und wieder aufgeladen werden. Früher waren die Voice-Terminals nur mit einer oder zwei Tasten ausgestattet. Heute setzen wir moderne Smart-Geräte mit Touch-Screen und teilweise eingebauten Scannern ein. Je nach Bedarf kombinieren wir auch das Pick by Voice mit Pick by Watch, um den Mitarbeiter eine optimale Informationsversorgung und Bedienungsfreundlichkeit zu garantieren.

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Speech recognition

Unsere Spracherkennung selber arbeitet textorientiert und wurde von uns als System-Anbieter optimal ausgewählt. Die Aussprache der Mitarbeiter muss im Pick by Voice System NICHT eingelernt werden (Sprecher-Unabhängige-Erkennung). Das Spracherkennungs-System erkennt die einzelnen Wörter, Zahlen, Sequenzen, etc. und liefert dem LUCA-Server die erforderlichen Informationen. Als Antwort sendet die Prozesssteuerung entsprechende Sprachbefehle. Für die ausländischen Mitarbeiter stehen bei Bedarf diverse Sprachversionen zur Verfügung. Lesen Sie weiter unten in diesem Artikel über die unterstütze Sprachen.

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In some applications, the employee must enter item numbers, serial numbers, or batches. A barcode scanner is Pick by Voice integrated into the system for this purpose. Depending on the frequency of use, the integrated scanners of the voice terminal or separate small back-of-hand scanners are used. By using the scanners, the acquisition costs increase, but they significantly improve the quality as well as the picking performance of the system.

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The batteries

The powerful LiIo batteries are sufficient for a whole shift without any problems. Depending on the hardware used, it is sometimes even possible to replace the batteries within 30 seconds during operation. The voice terminal does not switch off.

For charging the batteries there are various charging stations (also multiple ones) available. The batteries can be recharged either in the voice terminal or in a separate charging station. The charging times depend on the capacity of the battery and are between 2-3 hours.

In accordance with the safety regulations for LiIo batteries, the charging stations are always located in safe places and are clearly visible. We pay great attention to the correct and professional execution of the systems.

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Pick by Voice Dialoge

In every warehouse the processes are somewhat different. Of course, it is basically a matter of picking, but this must usually be carried out in different ways. For this reason, it is hardly possible to create a standard voice dialog that meets all requirements.

However, a simple example of a withdrawal is intended to briefly illustrate the possible procedure:

  • System: "Go to lane 3"
  • Employees: "3 OK"
  • System: "Go to square A03564"
  • Employees: "75 OK"
  • System: "5 pieces"
  • Employees: "5 OK"
  • etcetera

The dialogs are customer-specific and are very suitable for slow picking. Even the simple example shows how many actions must take place during a withdrawal.

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Not every employee is the same. The new employees first have to understand the voice commands correctly. The experienced, on the other hand, want to play the voice commands very quickly. Depending on the environment and habits, the volume must be adjusted. The system saves all these personal settings on the LUCA-Server and reactivates it after each login.

But how can the employee comfortably make Pick by Voice all these settings? Of course via special voice commands. Every employee will complete a short training course before starting work. He can learn about the special voice commands that are basically very easy to remember, e.g.:

  • "LUCA quieter" and "LUCA louder" adjust the volume of the headset
  • "LUCA slower" and "LUCA faster" slows down or accelerates the speech output in HeadSet.
  • "Info battery" provides the state of charge
  • etc.

All settings are easily LUCA-Servertraceable on the control panel.

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Supported Pick by Voice languages

In this we Pick by Voice distinguish between speech recognition and speech output. After logging in (login with numbers), which always takes place in a national language, each employee is assigned his language and the corresponding files are loaded. Each language version is associated with separate language licenses, which are, however, very quickly amortized by international crews. The use of different languages is very advantageous in this case.

Voice recognition (voice input)

The following languages are available for speech recognition:

  • Arabic (Gulf region)
  • Bulgarian (Bulgaria)
  • Cantonese (Hong Kong)
  • Czech (Czech Republic)
  • Danish (Denmark)
  • Dutch (Netherlands, Belgian)
  • English (USA, England, Australia, Scotland, Ireland, India, South Africa)
  • farsi
  • Finnish (Finland)
  • French (Canada, France)
  • English (Germany)
  • Greek (Greece)
  • Hebrew (Israel)
  • Hindi (India)
  • Hungarian (Hungary)
  • Indonesian (Indonesia)
  • Italian (Italy)
  • Japanese (Japan)
  • Korean (South Korea)
  • Mandarin (China)
  • Norwegian (Bokmal, Norway)
  • Polish (Poland)
  • Portuguese (Portugal, Brazil)
  • Russian (Russian Federation)
  • Sichuanese (China)
  • Slovak
  • Spanish (Spain, Catalan, Basque, Mexico)
  • Swedish (Sweden)
  • Thai (Thailand)
  • Turkish (Turkey)

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Voice output (Voice-Output)

Pick by Voice unterstützt zwei verschiedene Methoden der Sprachausgaben:

  • Natural language, created by a speaker
  • Artificial speech created by a program (speech synthesis)

What is the difference between the two language outputs? The natural language is more pleasant for the employee to be higher. It does, however, have some drawbacks. New commands must be separately recorded, edited and Pick by Voice manually inserted into that. With artificially created speech (speech synthesis), the speech output is output as read text. Synthetic speech output is already at a very high level today. It is very flexible, but cannot replace the natural language 100%.

Modern navigation systems can be a very good example of artificial language. Sometimes the expenses sound a little strange, but this is basically not an obstacle for the deployment.

The following languages of speech synthesis are available to us:

  • Arabic
  • basque
  • Bengali (India)
  • Bhojpuri (India)
  • Bulgarian (Bulgaria)
  • Cantonese (Hong Kong)
  • Catalan
  • Croatian
  • Czech
  • Danish
  • Dongbei (China)
  • Dutch (Belgium, Netherlands)
  • English (Australia, Great Britain, India, Ireland, Scotland, South Africa, USA)
  • farsi
  • Finnish
  • French (Canada, France)
  • Galician
  • English
  • Greek
  • Hebrew
  • Hindi
  • Hungarian
  • Indonesian
  • Italian
  • Japanese
  • Kannada
  • Korean
  • Malay
  • Mandarin (China, Taiwan)
  • Marathi
  • Norwegian
  • polish
  • Portuguese (Brazil, Portugal)
  • Romanian
  • Russian
  • Shanghai (China)
  • Sichuanese
  • Slovak
  • Spanish (Argentina, Chile, Colombia, Mexico, Spain)
  • Swedish
  • Tamil
  • Telugu
  • Thai
  • Turkish
  • Ukrainian
  • Valencian
  • Vietnamese

The development continues. We will certainly update the list of languages again soon.

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LUCA bietet mehrere  Kommissioniersysteme, wodurch eine optimierte Lösung erstellt werden kann. Eins davon ist auch Pick by Voice. Das System wird sehr gerne bei der Großteile-Kommissionierung eingesetzt, wo die Sprachbefehle selten benutzt werden müssen. Für eine schnelle Kleinteile-Kommissionierung stehen eher andere Systeme zur Verfügung. Durch eine große Anzahl an unterstützten Sprachversionen, eignet sich das Pick by Voice sehr gut für die ausländischen Mitarbeiter, wobei selbst der Umgang mit dem System erst erlernt werden muss.

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