Collision-Avoidance | Collision Avoidance with Reinforcement | Robotics library
kandi X-RAY | Collision-Avoidance Summary
kandi X-RAY | Collision-Avoidance Summary
Collision Avoidance with Reinforcement Learning
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- Train the network
- Sample from the buffer
- Update the network
- Runs the RNN
- Runs the RNN layer
- Flush the episode buffer
- Perform a step
- Fetches the collision data of the vehicle
- Try to restart gzebo
- Get image data
- Determine if a vehicle is colliding with a vehicle
- Get the position data of the robot
- Check if the vehicle has finished
- Pause the robot
- Unpause the drone
- Apply a steering to the motors
- Apply a Throttle message
- Resets the image
- Event handler
- Translate a value to a range
Collision-Avoidance Key Features
Collision-Avoidance Examples and Code Snippets
Community Discussions
Trending Discussions on Collision-Avoidance
QUESTION
As demonstrated in the diagram, out of n messages published on the queue - /queue/msgs
, the distribution among the consumers (STOMP-Consumer 1
and STOMP-Consumer 2
) is uneven. I could observe, STOMP-Consumer 2
only received one message out of n messages.
Exact same STOMP headers are passed by both the consumers. Those are as follows -
STOMP CONNECT Headers
- client-id: app
STOMP SUBSCRIBE Headers
- durable-subscription-name: app-subscription
- auto-delete: false
- ack: client-individual
- destination: /queue/msgs
Broker.xml
...ANSWER
Answered 2020-Sep-28 at 13:49Use the acceptor
URL parameter stompConsumerCredits
. The default value for this is 10240
bytes which means that the broker will dispatch 10KB worth of messages to each client. If the first client processes these messages quickly enough then other consumers can starve. Assuming that your STOMP consumers are using stomp
acceptor
then you could try something like this:
QUESTION
- Spring JMSListener listens at
/queue/app/*
- The message is actually produced at
/queue/app/XXX
and so also available at the wildcard-address (/queue/app/*
) to consume - Once the processing is successful at the listener, the message is acknowledged at the wildcard-address (
/queue/app/*
), but not the original address (/queue/app/XXX
).
My concern is that the message will retain the storage till expiry.
How can we solve this?
UsecaseMy setup is as follows -
Service A
Subscribes to /queue/A/*
Publishes to /queue/B/tenantId
Service B with TenantID = 1
Subscribes to /queue/B/1
Publishes to /queue/A/1
Service B with TenantID = 2
Subscribes to /queue/B/2
Publishes to /queue/A/2
Basically, Service A sends message to Service B via the independent-queues ( /queue/B/tenantId
) for different tenants. The idea behind separate queues for each tenant is to eliminate inter-tenant competition within the queue. Also, there will be multiple instances of Service B running for each tenant. Now once the Service B is done with the message-processing, it will publish the response-message back to Service A on the tenant-specific queue ( /queue/A/tenantId
). The idea here is to have the logical-isolation among tenant response-messages. Finally, the reason to use wildcard-address in Service A is because we can not have a dedicated consumer for each tenant in Service A and we plan to share it across tenants.
ANSWER
Answered 2020-Sep-14 at 17:58You're seeing the expected behavior. Remember, it's a wildcard address, not a wildcard consumer. Messages sent to any address matching the wildcard address will be routed to the queues bound to the wildcard address and those messages are acknowledged independently of the messages routed to the particular address' queues where they were originally sent.
If you don't want messages to accumulate in any of queues then simply remove the queues and just have the address. An address without any queues is a perfectly valid configuration.
QUESTION
I'm rebuilding an old Java project in Javascript, and realized that there's no good way to do enums in JS.
The best I can come up with is:
...ANSWER
Answered 2017-Jun-09 at 01:45Is there a problem with this formulation?
I don't see any.
Is there a better way?
I'd collapse the two statements into one:
QUESTION
I downloaded latest ActiveMQ Artemis 2.10.1 (Windows 10, JDK 8) and can't get the address-settings
to take affect. Reading the documentation (not much) on line I edited the broker.xml
by adding:
ANSWER
Answered 2019-Dec-06 at 02:24It seems likely that you're using the OpenWire JMS client. This complicates matters because, as I understand it, the OpenWire JMS client implements redelivery in the client itself and those redelivery semantics are configured on the client side not the broker side. The broker doesn't have a chance to apply any kind of redelivery policy because the OpenWire client handles everything and doesn't inform the broker of the delivery failures. This documentation may help you configure redelivery for your OpenWire client.
That said, I recommend following this tutorial. It demonstrates how to integrate TomEE and ActiveMQ Artemis without building/deploying the JCA RA. This will allow you to use the Core JMS client rather than the OpenWire JMS client.
If you want to go the RA route you can build the ActiveMQ Artemis JCA RA by running mvn verify
from the examples/features/sub-modules/artemis-ra-rar/
directory. The RA will be in the target
directory named artemis-rar-.rar
.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install Collision-Avoidance
sudo ./setup_env.sh
cd catkin_ws
catkin_make
. devel/setup.bash
roscd collision_avoidance_env/scripts/
sudo pip install -e .
roscd collision_avoidance/scripts
sudo pip install -r requirements.txt
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