real-time

问题 I am building an asp.net application for a health care domain. I need to keep the page to reflect real time updates. One way is to refresh the page after every x minutes but it may increase the load if there is no update. Moreover doing like this may not get the exact real time data. I want to achieve the almost complete real time functionality. How it can be done in ASP.NET C#..? 回答1: Have a look at SignalR https://github.com/SignalR/SignalR and http://www.hanselman.com/blog

问题 Can I perform a UDP broadcast packets on my machine? I don't have a network, i just have my cheap linux box. I want to have a server broadcasting a packet and two or more clients in the same machine receiving them. Is that possible? What IP do I use? @gravyface gave me hope but I tried: 1) server sending to 127.255.255.255:54321 and clients listenting to 0.0.0.0:54321. 2) server sending to 127.255.255.255:54321 and clients listening to 127.0.0.1:54321. 3) server sending to 127.255.255.255

问题 Can I perform a UDP broadcast packets on my machine? I don't have a network, i just have my cheap linux box. I want to have a server broadcasting a packet and two or more clients in the same machine receiving them. Is that possible? What IP do I use? @gravyface gave me hope but I tried: 1) server sending to 127.255.255.255:54321 and clients listenting to 0.0.0.0:54321. 2) server sending to 127.255.255.255:54321 and clients listening to 127.0.0.1:54321. 3) server sending to 127.255.255.255

问题 I have a web service with php which is listening to some other services and receive some messages. After getting the message I want to deliver it to my desktop application. I don't want that my desktop app call my web service to see the message, instead I want to push my message to desktop app. In C# we can listen to pipe when it changes. But don't have any idea how to deal with it in php. Or maybe I use socket between desktop app and web service. Any idea would highly appreciated. 来源： https:

问题 Im using the STM32 Cube IDE. What I tried now is enable MSM in TIM2 and output_compare_no_output on Channel 1 and select "Reset" as the Trigger Event. Then I went to ADC1 and enabled Regular_Conversion_Mode, set Number_Of_Conversions to 1 and the External_Trigger_Conversion_Source to Timer 2 Trigger Out event. After that I set up a DMA in circular mode that pushes half-words to a RAM buffer. For testing I've set the frequency of the timer a lot lower (10Hz) and send some ADC readings from the

问题 Im using the STM32 Cube IDE. What I tried now is enable MSM in TIM2 and output_compare_no_output on Channel 1 and select "Reset" as the Trigger Event. Then I went to ADC1 and enabled Regular_Conversion_Mode, set Number_Of_Conversions to 1 and the External_Trigger_Conversion_Source to Timer 2 Trigger Out event. After that I set up a DMA in circular mode that pushes half-words to a RAM buffer. For testing I've set the frequency of the timer a lot lower (10Hz) and send some ADC readings from the

问题 In the last couple of weeks, I've been trying to make an application that can read EEG data from OpenBCI Cyton (@250Hz) and plot a graph in 'real-time'. What seems to work better here are threads. I applied the tips I found here 1 to communicate the thread with Tkinter, but the application still doesn't work (gives me the error RecursionError: maximum recursion depth exceeded while calling a Python object ). Maybe I'm doing something wrong because I'm trying to use multiple .py files? See

问题 In the last couple of weeks, I've been trying to make an application that can read EEG data from OpenBCI Cyton (@250Hz) and plot a graph in 'real-time'. What seems to work better here are threads. I applied the tips I found here 1 to communicate the thread with Tkinter, but the application still doesn't work (gives me the error RecursionError: maximum recursion depth exceeded while calling a Python object ). Maybe I'm doing something wrong because I'm trying to use multiple .py files? See

问题 I'm working on a research project where I need to estimate in real time the 6DOF pose of objects in a pick and place tasks. The pose must be estimate in real time, and the objects can be one on top of the other and identical, so I have to get the position and the orientation of the object on the top. The problem is that the objects are same ( PPVC blocks, in the construction field) but good thing is that they are with quite regular shape. So how to compare the known 3D CAD model in a single

问题 I'm working on a research project where I need to estimate in real time the 6DOF pose of objects in a pick and place tasks. The pose must be estimate in real time, and the objects can be one on top of the other and identical, so I have to get the position and the orientation of the object on the top. The problem is that the objects are same ( PPVC blocks, in the construction field) but good thing is that they are with quite regular shape. So how to compare the known 3D CAD model in a single