Product description
HBC remote control range of pump truck accessories
Pump parts HBC remote control system is through the radio wave
transmission of the operator's control instructions, so that the
operator gets rid of the freedom of the tow cable, distance
restrictions and inconvenience and other reasons, resulting in the
use of wireless control to solve the above inconvenience, is a
revolution in the field of industrial control, is now widely used
in all walks of life.
Although the control operation method of wireless and wired control
is consistent, due to the particularity of radio, it is inevitable
that radio waves will interfere with the use of wireless control,
especially the industrial wireless remote control system for pump
trucks, because of the particularity of the use of pump trucks,
large mobility, the working area is not fixed, and the interference
source is uncertain. The pump truck accessories HBC remote control
system in the process of use will inevitably appear this and that
signal interference, thus interrupting the operation. This requires
us to correctly understand and fully understand, correctly
distinguish the nature of interference, and how to reduce the
inconvenience caused by interference.
In order to be able to correctly analyze, it is necessary to
understand some of the standards, specifications and scope of use
of industrial wireless remote control systems, the following is a
brief introduction to what is an industrial wireless remote control
system from several aspects.
First, the meaning of industrial wireless remote control system
Industrial wireless remote control system is a new type of control
mode in industrial production applications, which uses wireless
transmission and remote control equipment operation. Due to the
particularity and safety of remote control equipment, the
appearance of industrial wireless remote control system, in order
to avoid the confusion of wireless channels, countries have
formulated corresponding regulations, industrial wireless remote
control system, defined as micro-power radio transmission
equipment.
Second, the standard of industrial wireless remote control system
According to European standards, the National Radio Administration
has issued industrial wireless remote control system standards in
line with domestic use as early as the last century. Its main
technical indicators are:
1. The working frequency band is :418.950-419.275MHz, a total of 13
working frequency points
2, the interval between frequency points is :25KHz
3, the transmission power can not be greater than or equal to :10mw
4, the receiving sensitivity is greater than or equal to :20dB
It is not difficult to see from the above standards that the
industrial wireless remote control system is limited by national
standards, the transmission power is weak, and the control distance
is limited. In the normal working environment, if the antenna is
installed reasonably, the remote control distance is generally
about 100 meters. However, due to the different working environment
and the different installation position of the antenna of the
receiving system, its control distance may vary due to the
environment. In addition; Because it is a micro-power transmitting
and receiving equipment, it is easy to be interfered by other
high-power wireless transmitting equipment, such as walkie-talkies,
vehicle-borne and ship-borne communication radio, fixed radio and
so on.
Pump truck accessories HBC remote control system is produced in
strict accordance with the standards of the Radio Administration of
the People's Republic of China, each system has the above thirteen
frequency points built in, the switch transmission system power
supply once, and the automatic frequency hopping point once, a
total of thirteen choices (more than the standard violates the
regulations). That is to say, if in a radius of 200 meters, at the
same time there are fourteen pump trucks in the remote control
work, there will be two pump truck working frequency phase repeat,
resulting in mutual interference!! In addition; Because our
national radio management is more chaotic, smuggled various radio
communication equipment can be seen everywhere, so in the use of
wireless remote control, interference is inevitable (especially in
the central cities and coastal areas of Guangdong Province).
In order to reduce the interruption of operation due to wireless
signal interference, we recommend that some corresponding measures
be taken in use to reduce interference.
1. The antenna of the receiving system is installed in place. It is
recommended to use a suction cup antenna when hitting a high level,
and the antenna is introduced from the height of the car body, such
as the top of the front.
2, in case of interference, the working frequency can be
appropriately re-selected several times.