Analog set: analog outdoor railway signaling equipment
Features: Indoor interlocking logic test
When used in: a newly built station in time
status quo:
Improve:
1) a system, including software and hardware to achieve universal
2) on the battlefield FIG PC display, more intuitive.
Most started doing: analog circuit design outdoor signaling equipment. Through communication with others, no need to find.
As long as we collect actual signal relay device of each state on the line.
For example: track circuit but two states: positioning and trans. Collected by the state track relays, we will know the state of the track.
Turnout for words: to collect four relays states: 1 starting relay, starter relay 2, showing the positioning relay, showing the relay trans
For signal words: collection of different relays depending on the signal.
By something other people visiting the laboratory, learned
1, track circuit: ZPW-2000
Voltage on the track circuit:
When testing in place beginning: about 3.4V
When tested in the middle of nowhere: about 1.33V
When the local end of the test: about 500mV
This shows that the track circuit is a process of decay.
zpw-2000 consists of:
Two large shelf: a frequency generator, the other is to put the shelf frame relay combination
The idea: Look up the company's production ZPW-2000, look for ZPW-2000 explained.
Simulation Driving: After an approach to handle, by a switch on the dial, indicating that the clearing zone; a dial switch, indicates a segment occupies
Relay:
Nothing relay consists of two parts: a coil and a node
There may be a two relay coils, each coil has two ports, two coils have four ports.
Relay nodes 10 may be right.
Voltage relay: Some relay voltage is 5V, and the voltage of a conventional relay is 24V.
Switch Machine:
White point of the switch machine and black dots on the map, when the rocking switch machine, black dots becomes white point, white point into a black dot, is not completely converted into two groups, it will form a quarto state .
Three-wire, four-wire
Console
Some chip cascade:
Parallel and serial: 595,573, on the selection of light cube chip 595, chip select can
And serial transfer: 165D
How the actual
To see how the drawings:
1. First in FIG elements which:
1) Power Interface
2) Fuse
3) Relay coil
4) Relay Node
5) button
6) a diode
7) Light
8) Motor
2. Observe relay, see the arrow next to the relay, the relay determining what the normal state, and then see which way to pick up falling through.