Machines are now doing many jobs usually performed by people.
One new invention is a machine that operates cars and other vehicles in parking garages. Another kind of robot can transport food or medicine in some hospitals.
Robots are now used at a new parking garage in West Hollywood, California. Drivers drop off their vehicles in front of the building, and the robots take over from there.
The vehicles are lifted and transported by large machines controlled by computers. The computers record the exact measurements of the automobile and take it to the best available space. The robots can leave cars within centimeters of each other without any mistakes.
Car owner Johnny D'Agostino said he feels good knowing that a machine is moving his vehicle.
"I take my keys and I don't got to worry about a valet taking my car. I don't got to worry about someone scratching my car."
When people return to the garage, they use a ticket to pay for the safe return of the vehicle. The robot then retrieves the car and returns it to the driver.
The 200-car parking lot is the first of its kind in West Hollywood. The city's mayor, Lauren Meister, says the system is easy to use, and reduces air pollution.
"You don't have people going and parking their own cars so the ventilation system is different, and we are literally saving hundreds and hundreds of trees."
City officials say the garage cost about 18 million dollars. This is only a little higher than the usual price, since the building does not need extended lighting systems or walkways for humans to use.
Another kind of robot is being used to carry food and medicine in some hospitals and retirement homes. The automated carriers make deliveries to let workers spend more time with patients.
GoCart carries food, medicine
The robotic GoCart can recognize people and equipment, and move around them to reach its target. Marcus Liebhardt helped develop the robot.
"We drive through the hallways, and during that phase the robot generates a map. Once the robot learns the map, it is able to navigate itself."
The GoCart can operate alone or be used in a group of robots that communicate with each other. Liebhardt said the robot is good at recognizing possible hazards and avoiding them.
"So if people jump in its way, kids jumping around the robot, then the robot will stop in time to avoid any collision. And it will also, if possible, re-plan its route, move around people."
The South Korean manufacturer, Yujin, says the GoCart is good at performing the same activity over and over again. So it hopes the robots will be used in other medical settings in the future.
I'm Bryan Lynn.
1.parking garage 停车场
While Jack waits in the driver’s seat, another car enters the parking garage.
2.environment friendly 环保的，环境友好的
There are those who bring their own cars, ride the bus, trains and other public utility vehicles but some of us goes for a healthier and environment friendly alternatives like riding a bike.
有人自己开车； 有人则搭公交、坐火车，搭乘公共交通工具； 但是也有人采用更健康更环保的方式，比如骑自行车 。
If humidity not within the set point, turn on external ventilation.
Putting on an opera is a tremendous enterprise involving literally hundreds of people.
1.Drivers drop off their vehicles in front of the building, and the robots take over from there.
take over 接管，接收
I'm going to take over the company one day.
In 2001, I took over from him as governing mayor.
2.The GoCart can operate alone or be used in a group of robots that communicate with each other.
communicate with 沟通，对话
He can communicate with her by telepathy.
How do your users communicate with you and your app?
其中一项新发明是让机器在停车场里停车或其他交通工具 。另有一种机器人可以为一些医院运输食物和药品 。
加州西好莱坞的某个新停车场就在使用机器人停车 。司机可以将车停放在楼前，然后机器人就会将车开到停车场中 。
车辆会被吊起，然后由电脑控制的大型机器运送到停车场中 。电脑会准确测量车辆信息，然后将其放置在最佳空位 。机器人可以让车辆之间保持精准的厘米之差而不相蹭 。
车主回到车库时，只需要购买一张车辆安全回置的票即可 。然后，机器人就会将车取回，还给车主 。
容量高达200的停车库是西好莱坞史上首例 。该市市长劳伦表示，该系统使用便捷，减轻污染 。
“有了这个系统，就不必人工停车，所以通风系统也就不一样了 。这样真的能节省成百上千的数目” 。
市工作人员表示，该车库耗资1800万美元 。造价仅比普通车库略高，因为车库的楼梯不需要拓展式的照明系统和人行通道 。
现在还有一种机器人能为医院和养老院运送食物和药品 。自动运输器运送供给聘，能为工作人员省去很多时间，用于服务患者 。
GoCart能识别人和环境，并能在有人的环境中自如行走，抵达运输目标 。马库斯参与研制了GoCart 。
“在走廊穿梭期间，机器人就能生成一个地图 。一旦机器人获悉地图信息，就能自己导航” 。
GoCart既能独立工作，也能与彼此沟通，成组工作 。马库斯表示，Liebhardt擅长识别可能的障碍物，并避开障碍物 。
“所以，如果有人挡道，有小孩儿在它面前跳来跳去，那么它会即时停下，以避免碰撞 。同时，它还会重新规划路线，在人之间穿梭” 。
韩国制造商Yujin表示，GoCart擅长重复同一活动 。所以它希望这类机器人将来能用于其他的医疗用途中 。