PTZ is the support equipment for installing and fixing the camera. It is divided into fixed and rotating PTZ. The fixed pan/tilt is suitable for situations where the monitoring range is not large. After installing the camera on the fixed pan/tilt, the horizontal and pitch angles of the camera can be adjusted to achieve the best working posture, and the monitoring area can be locked.
The rotating pan/tilt is suitable for scanning and monitoring a large area. It can expand the surveillance range of the camera, and can even continuously rotate 360° for monitoring. The principle of rotating the pan/tilt is: through the built-in motor and the worm gear The transmission link accepts signals from the controller to operate and position accurately. Under the action of the control signal, the camera on the PTZ can automatically scan the surveillance area, and can also track the surveillance object under the operation of the monitoring center staff.
In the field of forest fire prevention, the load-bearing pan/tilt of cameras has gradually developed from the original heavy-duty pan/tilt to the current light-load pan/tilt, with multiple versions in between. The pan/tilt that first appeared in people's field of vision was heavy and large. , the internal transmission method is also very simple, usually relying on the traditional belt drive , which is very easy to damage, which makes later maintenance very difficult, because forest fire protection equipment is often installed in complex and harsh environments in the wild, and even in some places there are roads None, it was completely dependent on manual labor to move them up the mountain. If the equipment fails when it is put into use later, we can only rely on people to climb up the tower to disassemble it, and then return it to the factory for repair. The whole process is time-consuming and inefficient.
Traditional heavy-duty pan/tilts usually have the following shortcomings:
1. High installation costs.
Because the use environment is generally in the wild, the pan/tilt is too heavy to be transported. It even needs to be hoisted during installation, which increases labor and installation costs.
2. High maintenance costs
When the gimbal breaks down and needs to be repaired, it will cost more labor costs to disassemble or even return it to the factory, which greatly increases maintenance costs.
3, high power consumption
Traditional heavy-duty pan/tilts are heavy and require more power to drive. However, in complex outdoor environments, equipment generally relies on solar power. Faced with equipment with such high power consumption, the power supply is completely unable to make ends meet. If there is a power outage and cannot operate, it will be like a virtual device.
4, small load capacity
The heavy-duty pan/tilt is not a heavy-duty pan/tilt. Many customers often misunderstand the heavy-duty pan/tilt as a heavy-duty pan/tilt. This is not the case. The heavy-duty pan/tilt is just heavy in shape and bulky. If you don’t have According to the corresponding load capacity, then it is just large and heavy, and has nothing to do with being able to carry heavier protective covers and lenses.
5. Large shaking
Pan/tilt heads are generally installed on the top of iron towers. When natural disasters such as strong winds and earthquakes occur, due to the excessive mass of the heavy-duty pan/tilt, it is easy to cause the center of gravity to shift, resulting in greater shaking and poor stability. reduce.
With the advancement of technology, heavy-duty pan-tilts with various shortcomings have slowly withdrawn from the stage of history, and have been replaced by light-load digital pan-tilts with smaller equipment, lighter weight, and higher integration.
The traditional heavy-duty pan/tilt has a bulky appearance and still uses a belt drive internally.
The "Forest Guardian" light-duty digital pan/tilt was born based on this environment. Its overall weight is less than 9kg, and one person can easily carry it away. In order to achieve lightweight, we have made many invisible efforts. The first is the reduction in the weight of the casing. More than 50% of the weight of the gimbal comes from the casing. Solving the problem of casing weight is half the battle with lightweighting. Our approach is to use cast aluminum to ensure that the shell is hard enough while also minimizing the weight of the shell, and then coat it with a special coating to make the gimbal shell lightweight while also being waterproof and waterproof. Dust-proof, salt spray-proof, low-temperature resistance, high-temperature resistance and other capabilities to cope with harsh outdoor environments.
The internal structure of the "Forest Guardian" light-duty digital pan/tilt head
Then the next step is to improve the transmission method and abandon the long-used belt transmission method. The biggest problem with the belt transmission is that in the wild environment, the belt lacks maintenance for many years. It is easy to crack and then disconnect, which is also very troublesome to repair in the field. To this end, we have specially optimized the internal space of the gimbal and packed a more expensive worm gear transmission method into a very limited space. This method has higher transmission efficiency and is more energy-saving, minimizing power loss and improving transmission. efficiency. The reduced weight and power consumption of
does not mean that the use effect will be greatly reduced. On the contrary, with the development of modern science and technology, the technology used in cameras is more advanced, more powerful, and the imaging quality is better. In order to ensure imaging quality, we give priority to lenses with higher parameters and more powerful functions to ensure better imaging quality. In terms of algorithm recognition, we have built-in Haipu's self-developed AI recognition algorithm in the PTZ, which can directly recognize images on the front end, greatly improving the recognition accuracy and alarm response speed. The fireworks recognition rate has reached more than 98%, and No false negatives.
application case display
Lighter weight, lower power consumption, and higher integration of PTZ must be the trend in the future. It brings many advantages such as easy transportation, easy installation, and easy maintenance, which will make the forest fire monitoring and early warning system It is easier to use and more suitable for use in complex outdoor environments. At the same time, based on the continuously advancing science and technology, the size of the future gimbal will definitely become smaller and smaller, while the function will become more and more powerful, "cumbersome, heavy and big" The device will no longer appear.
