
Self-controlled robo guard scans for dangerous individuals and suspicious packages, would probably look adorable with a police officer’s uniform.
The morning started off like any other. We got up, hopped on the train to go to SoraNews24 headquarters, and when we got off at Seibu Shinjuku Station, at first nothing looked out of the ordinary.
But the station sounded different. No, it wasn’t filled with the squeals of adoring fangirls swooning over posters of our ace reporter Mr. Sato (those were only up at Seibu Ikebukuro Station). Instead, mixed in with the murmurs and footsteps of our fellow commuters we could hear a clear yet mechanical voice repeatedly saying “Security patrol in progress. Security patrol in progress.”
And then we saw this.
Japan is the cosplay capital of the world, and at first we thought this might be an overzealous costumer who just couldn’t wait until next month’s winter Comiket to show off his outfit. It turns out, though, that that’s an honest-to-goodness security robot patrolling one of Tokyo’s most important rail hubs.
This isn’t a remote-controlled land drone, either. The Perseusbot, as it’s officially called, moves autonomously, thanks to technology jointly developed by Seibu Railway, the Tokyo Metropolitan Industrial Technology Research Institute, and Japanese artificial intelligence firms Earth Eyes and Nihon Unisys. As it patrols its territory, the Perseusbot scans the area with its onboard camera and also analyzes images sent to it by the facility’s preexisting installed security cameras, searching for humans moving aggressively or dangerously as well as suspicious unattended packages.
▼ The Perseusbot has a bit of a paunch, which makes us wonder if it also scans for snacks.
However, while the security robot is capable of detecting problems on its own, it leaves threat response up to flesh-and-blood colleagues. When it spots someone or something dangerous, it sends a notification to the facility’s human security staff, so there’s no need to worry about it shooting death rays or shocking you with a stun baton if you look at it cockeyed.
▼ Seeing it standing guard in front of a Starbucks sign has us wondering if, unlike carbon-based law-enforcement officers in Japan, the Perseusbot is allowed to consume beverages while on duty.
The robot is still undergoing field testing, so that the developers can gauge its capabilities and also the effect it has on pedestrian traffic flow. Since its systems aren’t completely finalized yet, when we came across the Perseusbot it was being followed by a group of researchers.
▼ Making it look like it’s got its own celebrity entourage
The Seibu Shinjuku Station test run ended on November 30, but given the rail operator’s involvement in the project, it’s probably only a matter of time until we run into one again. Hopefully it’ll be more understanding of our writers’ periodically bizarre appearance than the human Tokyo cops.
Reference: Seibu Railway, Asahi Shimbun
Photos ©SoraNews24
[ Read in Japanese ]
Follow Casey on Twitter, where, on second thought, he thinks it would be best to dress the Perseusbot is a penguin costume.








Robot security guards patrol Tokyo Metropolitan Government Building
Japan Railways wants to build a team of robots to help travelers, catch criminals in its stations
This handsome anime-style security guard will be protecting actual homes and offices in Japan
Skynet sends a Terminator to Tokyo’s Shinjuku Station to future-freak-out commuters【Photos】
Robot noodle chef starts working in Tokyo train station, serves up taste of the future【Video】
Family Mart releases huge range of cute sweets for Cat Day in Japan
Downloads of 39-year-old Guns N’ Roses song increase 12,166 percent thanks to Gundam
An ode to Japan’s musical trucks and the wondrous things they sell
We visit the Hello Kitty theme park to eat an adorable Sanrio meal
Is China’s don’t-go-to-Japan warning affecting the lines at a popular Tokyo gyukatsu restaurant?
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
Giant hotel rooms in Osaka reflect the new non-niche face of travel in Japan.
Private booths are coming to Japan’s Shinkansen bullet trains even sooner than we’d thought【Video】
Turn clear files into works of art with cleverly designed Japanese scroll
Japanese hotel offering sports car touge tours, no Japanese-language ability required
Yokai are descending upon Tokyo this spring in the latest immersive art experience
Three beautiful places to see Japan’s plum blossoms after starting your day in downtown Tokyo
Cherry blossom forecasts map shows Japan’s OTHER sakura season is starting right now
New Studio Ghibli stamps leave an impression on your stationery…and your heart
Japanese women sound off on their minimum height requirements for a husband【Survey】
Huge Evangelion Unit-01 head appearing in lights in Japan to celebrate anime’s 30th anniversary
Kyoto planning surprise late-night inspections of Airbnb-style rentals to fight overtourism
Japanese movie theater chain’s popcorn earns highest Grand Prix quality certification
Japan’s most famous Mt. Fuji view park cancels cherry blossom festival because of overtourism
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Japan releases first official sakura cherry blossom forecast for 2026
10 times to avoid traveling in Japan in 2026
Archfiend Hello Kitty appears as Sanrio launches new team-up with Yu-Gi-Oh【Pics】
Starbucks Japan releases new Frappuccino and latte for Valentine’s Day
China’s don’t-go-to-Japan warning looks to be affecting tourist crowds on Miyajima
Our 52-year-old pole dancing reporter shares his tips for achieving your New Year’s exercise goal
Studio Ghibli releases new “komorebi” plush toys from Princess Mononoke and Spirited Away
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
Tokyo Station’s new guidance robot is extremely terrifying, pretty helpful【Video】
Japan Railways now has giant robots performing maintenance work via VR-goggled operators
Tokyo’s fried-chicken cooking robot is here, and here’s a guide to help you use it【Photos】
Tokyo train station’s free luggage storage terminals will keep your stuff safe as you take a dump
From Tokyo to Hokkaido for under 50 bucks in train tickets–Part 2 of our Japanese rail voyage
Japan goes from capsule hotels to capsule offices with free Wi-Fi, device charging in Tokyo
Anime star Captain Tsubasa takes over Tokyo train station, turns ticket gate into soccer field
Leave a Reply