38
Appendix 1.2 Wireless Surveillance of Safe Town
System Diagram (Full Wireless Coverage Proposal)
Appendix Figure 1-4
Rural scene is relatively fixed, so it is easiest to design wireless proposals. The proposal for every
village is almost the same: it centers on village committee, and video data is wirelessly converged and
saved in NVR device in machine room. Through operator network, town and county surveillance center
can carry out data debugging, backup and save crucial videos.
No.
Type
Model No.
Qty.
Description
Feature
1
Wireless
receiving
end
DH-PFM88
0
4
IP66, wide temperature: -30~70°,
wireless
bandwidth:
300M,
coverage area: 3km, standard
power supply, high-power antenna
and dual feeder
Four APs combine to
cover 360° for 3 km
area
2
Wireless
client
DH-PFM88
1
X
Outdoor
waterproof,
wide
temperature: -30~70°, wireless
bandwidth: 300M, coverage area:
3km, standard power supply
There are about 15
generally,
to
be
adjusted according to
actual needs.
3
Outdoor
switch
DH-S4000-
7X
1
4* 10/100M, 1*10/100/1000M,
2*1000MSFP optical port, 1
Console port, support STP ring
network protocol
It applies to outdoor
high
and
low
temperature
environment,
and
converges with four
APs.
